Cisco CCNA 200-301 IPv6 Addressing Practice Test

Topic 07 focuses on IPv6 Addressing and Address Types for the Cisco Certified Network Associate (CCNA) certification and the 200-301 exam, using Cisco networking and Cisco IOS concepts where relevant. For broader exam preparation, review the Cisco CCNA 200-301 Exam Dumps page. Each question includes a concise explanation of the correct answer and the technical reason the other choices are incorrect.

Question 1

Which IPv6 unicast address is intended to be globally routable, commonly drawn from 2000::/3?

1. IPv6 interface identifier
2. Anycast address
3. Global unicast address
4. IPv6 hexadecimal hextet

Correct Answer: C

 

Correct Answer

Answer C is correct because the selected answer describes an IPv6 unicast address intended to be globally routable, commonly drawn from 2000::/3.

Incorrect Answers

Answer A is incorrect because the “IPv6 interface identifier” option describes a different concept: On a typical /64 IPv6 LAN, the lower 64 bits represent the interface identifier portion of a unicast address.

Answer B is incorrect because the “Anycast address” option describes a different concept: a unicast-format IPv6 address assigned to multiple interfaces so routing delivers traffic to the nearest instance.

Answer D is incorrect because the “IPv6 hexadecimal hextet” option describes a different concept: an IPv6 address is written as eight 16-bit hexadecimal groups, commonly called hextets, before abbreviation rules are applied.

 

Question 2

Which IPv6 address is used only on the local link, commonly from FE80::/10, and required for many IPv6 functions?

1. FF02::2
2. Neighbor Discovery
3. Link-local address
4. IPv6 has no broadcast address

Correct Answer: C

 

Correct Answer

Answer C is correct because the selected answer describes an IPv6 address used only on the local link, commonly from FE80::/10, and required for many IPv6 functions.

Incorrect Answers

Answer A is incorrect because the “FF02::2” option describes a different concept: FF02::2 is the IPv6 link-local all-routers multicast address used to reach all IPv6 routers on the local link.

Answer B is incorrect because the “Neighbor Discovery” option describes a different concept: IPv6 Neighbor Discovery uses ICMPv6 messages for functions including router discovery, neighbor discovery, address resolution, and reachability tracking.

Answer D is incorrect because the “IPv6 has no broadcast address” option describes a different concept: IPv6 does not use broadcast addressing; multicast is used for functions that would often rely on broadcast in IPv4.

 

Question 3

What is an IPv6 address from FC00::/7 intended for private-style internal use rather than global Internet routing?

1. Link-local address
2. Multicast address
3. Anycast address
4. Unique local address

Correct Answer: D

 

Correct Answer

Answer D is correct because the selected answer describes an IPv6 address from FC00::/7 intended for private-style internal use rather than global Internet routing.

Incorrect Answers

Answer A is incorrect because the “Link-local address” option describes a different concept: an IPv6 address used only on the local link, commonly from FE80::/10, and required for many IPv6 functions.

Answer B is incorrect because the “Multicast address” option describes a different concept: an IPv6 address from FF00::/8 that identifies a group of interfaces; IPv6 does not use broadcast addresses.

Answer C is incorrect because the “Anycast address” option describes a different concept: a unicast-format IPv6 address assigned to multiple interfaces so routing delivers traffic to the nearest instance.

 

Question 4

Which IPv6 address from FF00::/8 identifies a group of interfaces; IPv6 does not use broadcast addresses?

1. FF02::1
2. Solicited-node multicast
3. Unspecified address
4. Multicast address

Correct Answer: D

 

Correct Answer

Answer D is correct because the selected answer describes an IPv6 address from FF00::/8 that identifies a group of interfaces; IPv6 does not use broadcast addresses.

Incorrect Answers

Answer A is incorrect because the “FF02::1” option describes a different concept: FF02::1 is the IPv6 link-local all-nodes multicast address used to reach all IPv6 nodes on the local link.

Answer B is incorrect because the “Solicited-node multicast” option describes a different concept: an IPv6 multicast address used by Neighbor Discovery for functions such as address resolution and duplicate address detection.

Answer C is incorrect because the “Unspecified address” option describes a different concept: the IPv6 address :: used when a node does not yet have or is not specifying a source address.

 

Question 5

Which unicast-format IPv6 address is assigned to multiple interfaces so routing delivers traffic to the nearest instance?

1. Multicast address
2. Link-local address
3. Anycast address
4. FF02::2

Correct Answer: C

 

Correct Answer

Answer C is correct because the selected answer describes a unicast-format IPv6 address assigned to multiple interfaces so routing delivers traffic to the nearest instance.

Incorrect Answers

Answer A is incorrect because the “Multicast address” option describes a different concept: an IPv6 address from FF00::/8 that identifies a group of interfaces; IPv6 does not use broadcast addresses.

Answer B is incorrect because the “Link-local address” option describes a different concept: an IPv6 address used only on the local link, commonly from FE80::/10, and required for many IPv6 functions.

Answer D is incorrect because the “FF02::2” option describes a different concept: FF02::2 is the IPv6 link-local all-routers multicast address used to reach all IPv6 routers on the local link.

 

Question 6

What is the IPv6 address ::1 used by a host to refer to itself?

1. IPv6 interface identifier
2. Loopback address
3. Multicast address
4. Global unicast address

Correct Answer: B

 

Correct Answer

Answer B is correct because the selected answer describes the IPv6 address ::1 used by a host to refer to itself.

Incorrect Answers

Answer A is incorrect because the “IPv6 interface identifier” option describes a different concept: On a typical /64 IPv6 LAN, the lower 64 bits represent the interface identifier portion of a unicast address.

Answer C is incorrect because the “Multicast address” option describes a different concept: an IPv6 address from FF00::/8 that identifies a group of interfaces; IPv6 does not use broadcast addresses.

Answer D is incorrect because the “Global unicast address” option describes a different concept: an IPv6 unicast address intended to be globally routable, commonly drawn from 2000::/3.

 

Question 7

What is the IPv6 address :: used when a node does not yet have or is not specifying a source address?

1. FF02::2
2. IPv6 has no broadcast address
3. Unspecified address
4. Loopback address

Correct Answer: C

 

Correct Answer

Answer C is correct because the selected answer describes the IPv6 address :: used when a node does not yet have or is not specifying a source address.

Incorrect Answers

Answer A is incorrect because the “FF02::2” option describes a different concept: FF02::2 is the IPv6 link-local all-routers multicast address used to reach all IPv6 routers on the local link.

Answer B is incorrect because the “IPv6 has no broadcast address” option describes a different concept: IPv6 does not use broadcast addressing; multicast is used for functions that would often rely on broadcast in IPv4.

Answer D is incorrect because the “Loopback address” option describes a different concept: the IPv6 address ::1 used by a host to refer to itself.

 

Question 8

Which standard IPv6 subnet prefix length is used on most LAN segments?

1. /64 prefix
2. Loopback address
3. FF02::2
4. Unspecified address

Correct Answer: A

 

Correct Answer

Answer A is correct because the selected answer describes the standard IPv6 subnet prefix length used on most LAN segments.

Incorrect Answers

Answer B is incorrect because the “Loopback address” option describes a different concept: the IPv6 address ::1 used by a host to refer to itself.

Answer C is incorrect because the “FF02::2” option describes a different concept: FF02::2 is the IPv6 link-local all-routers multicast address used to reach all IPv6 routers on the local link.

Answer D is incorrect because the “Unspecified address” option describes a different concept: the IPv6 address :: used when a node does not yet have or is not specifying a source address.

 

Question 9

What is a method for deriving a 64-bit IPv6 interface identifier from a 48-bit MAC address by inserting FFFE and modifying the U/L bit?

1. IPv6 interface identifier
2. Link-local address
3. Modified EUI-64
4. Multicast address

Correct Answer: C

 

Correct Answer

Answer C is correct because the selected answer describes a method for deriving a 64-bit IPv6 interface identifier from a 48-bit MAC address by inserting FFFE and modifying the U/L bit.

Incorrect Answers

Answer A is incorrect because the “IPv6 interface identifier” option describes a different concept: On a typical /64 IPv6 LAN, the lower 64 bits represent the interface identifier portion of a unicast address.

Answer B is incorrect because the “Link-local address” option describes a different concept: an IPv6 address used only on the local link, commonly from FE80::/10, and required for many IPv6 functions.

Answer D is incorrect because the “Multicast address” option describes a different concept: an IPv6 address from FF00::/8 that identifies a group of interfaces; IPv6 does not use broadcast addresses.

 

Question 10

Which IPv6 multicast address is used by Neighbor Discovery for functions such as address resolution and duplicate address detection?

1. Solicited-node multicast
2. Neighbor Discovery
3. Unspecified address
4. Loopback address

Correct Answer: A

 

Correct Answer

Answer A is correct because the selected answer describes an IPv6 multicast address used by Neighbor Discovery for functions such as address resolution and duplicate address detection.

Incorrect Answers

Answer B is incorrect because the “Neighbor Discovery” option describes a different concept: IPv6 Neighbor Discovery uses ICMPv6 messages for functions including router discovery, neighbor discovery, address resolution, and reachability tracking.

Answer C is incorrect because the “Unspecified address” option describes a different concept: the IPv6 address :: used when a node does not yet have or is not specifying a source address.

Answer D is incorrect because the “Loopback address” option describes a different concept: the IPv6 address ::1 used by a host to refer to itself.

 

Question 11

An engineer writes the IPv6 hextet 00ab as ab. Which valid IPv6 abbreviation rule is being used?

1. Leading-zero suppression
2. Modified EUI-64
3. IPv6 hexadecimal hextet
4. SLAAC

Correct Answer: A

 

Correct Answer

Answer A is correct because IPv6 notation allows leading zeros within any 16-bit hextet to be omitted, so 00ab can be written as ab.

Incorrect Answers

Answer B is incorrect because the “Modified EUI-64” option describes a different concept: a method for deriving a 64-bit IPv6 interface identifier from a 48-bit MAC address by inserting FFFE and modifying the U/L bit.

Answer C is incorrect because the “IPv6 hexadecimal hextet” option describes a different concept: an IPv6 address is written as eight 16-bit hexadecimal groups, commonly called hextets, before abbreviation rules are applied.

Answer D is incorrect because the “SLAAC” option describes a different concept: Stateless Address Autoconfiguration allows an IPv6 host to form addressing information from router advertisements without requiring a stateful DHCPv6 address assignment.

 

Question 12

A contiguous run of zero-valued IPv6 hextets is replaced by a double colon, which is used only once in the address. Which abbreviation rule permits this?

1. Global unicast address
2. Leading-zero suppression
3. SLAAC
4. Zero compression

Correct Answer: D

 

Correct Answer

Answer D is correct because IPv6 notation allows one contiguous run of all-zero hextets to be replaced by a double colon, and the double-colon abbreviation can be used only once in an address.

Incorrect Answers

Answer A is incorrect because the “Global unicast address” option describes a different concept: an IPv6 unicast address intended to be globally routable, commonly drawn from 2000::/3.

Answer B is incorrect because the “Leading-zero suppression” option describes a different concept: IPv6 notation allows leading zeros within any 16-bit hextet to be omitted, so 00ab can be written as ab.

Answer C is incorrect because the “SLAAC” option describes a different concept: Stateless Address Autoconfiguration allows an IPv6 host to form addressing information from router advertisements without requiring a stateful DHCPv6 address assignment.

 

Question 13

An IPv6 packet must reach all IPv6 nodes on the local link. Which multicast destination should be used?

1. Unique local address
2. FF02::2
3. FF02::1
4. Zero compression

Correct Answer: C

 

Correct Answer

Answer C is correct because FF02::1 is the IPv6 link-local all-nodes multicast address used to reach all IPv6 nodes on the local link.

Incorrect Answers

Answer A is incorrect because the “Unique local address” option describes a different concept: an IPv6 address from FC00::/7 intended for private-style internal use rather than global Internet routing.

Answer B is incorrect because the “FF02::2” option describes a different concept: FF02::2 is the IPv6 link-local all-routers multicast address used to reach all IPv6 routers on the local link.

Answer D is incorrect because the “Zero compression” option describes a different concept: IPv6 notation allows one contiguous run of all-zero hextets to be replaced by a double colon, and the double-colon abbreviation can be used only once in an address.

 

Question 14

An IPv6 host needs to address all IPv6 routers on its local link. Which multicast destination identifies that group?

1. IPv6 has no broadcast address
2. FF02::1
3. Solicited-node multicast
4. FF02::2

Correct Answer: D

 

Correct Answer

Answer D is correct because FF02::2 is the IPv6 link-local all-routers multicast address used to reach all IPv6 routers on the local link.

Incorrect Answers

Answer A is incorrect because the “IPv6 has no broadcast address” option describes a different concept: IPv6 does not use broadcast addressing; multicast is used for functions that would often rely on broadcast in IPv4.

Answer B is incorrect because the “FF02::1” option describes a different concept: FF02::1 is the IPv6 link-local all-nodes multicast address used to reach all IPv6 nodes on the local link.

Answer C is incorrect because the “Solicited-node multicast” option describes a different concept: an IPv6 multicast address used by Neighbor Discovery for functions such as address resolution and duplicate address detection.

 

Question 15

Which term describes stateless Address Autoconfiguration allows an IPv6 host to form addressing information from router advertisements without requiring a stateful DHCPv6 address assignment?

1. IPv6 hexadecimal hextet
2. SLAAC
3. Link-local address
4. Loopback address

Correct Answer: B

 

Correct Answer

Answer B is correct because Stateless Address Autoconfiguration allows an IPv6 host to form addressing information from router advertisements without requiring a stateful DHCPv6 address assignment.

Incorrect Answers

Answer A is incorrect because the “IPv6 hexadecimal hextet” option describes a different concept: an IPv6 address is written as eight 16-bit hexadecimal groups, commonly called hextets, before abbreviation rules are applied.

Answer C is incorrect because the “Link-local address” option describes a different concept: an IPv6 address used only on the local link, commonly from FE80::/10, and required for many IPv6 functions.

Answer D is incorrect because the “Loopback address” option describes a different concept: the IPv6 address ::1 used by a host to refer to itself.

 

Question 16

A host uses ICMPv6 messages for router discovery, address resolution and neighbor reachability tracking. Which IPv6 protocol family provides these functions?

1. Loopback address
2. Neighbor Discovery
3. Anycast address
4. FF02::1

Correct Answer: B

 

Correct Answer

Answer B is correct because IPv6 Neighbor Discovery uses ICMPv6 messages for functions including router discovery, neighbor discovery, address resolution, and reachability tracking.

Incorrect Answers

Answer A is incorrect because the “Loopback address” option describes a different concept: the IPv6 address ::1 used by a host to refer to itself.

Answer C is incorrect because the “Anycast address” option describes a different concept: a unicast-format IPv6 address assigned to multiple interfaces so routing delivers traffic to the nearest instance.

Answer D is incorrect because the “FF02::1” option describes a different concept: FF02::1 is the IPv6 link-local all-nodes multicast address used to reach all IPv6 nodes on the local link.

 

Question 17

In an IPv6 address written with /64, what term identifies the value that specifies how many leading bits belong to the network portion?

1. FF02::1
2. IPv6 prefix length
3. Solicited-node multicast
4. Multicast address

Correct Answer: B

 

Correct Answer

Answer B is correct because the selected answer describes an IPv6 prefix length specifies the number of leading bits that identify the network prefix, using notation such as /64.

Incorrect Answers

Answer A is incorrect because the “FF02::1” option describes a different concept: FF02::1 is the IPv6 link-local all-nodes multicast address used to reach all IPv6 nodes on the local link.

Answer C is incorrect because the “Solicited-node multicast” option describes a different concept: an IPv6 multicast address used by Neighbor Discovery for functions such as address resolution and duplicate address detection.

Answer D is incorrect because the “Multicast address” option describes a different concept: an IPv6 address from FF00::/8 that identifies a group of interfaces; IPv6 does not use broadcast addresses.

 

Question 18

Which term describes on a typical /64 IPv6 LAN, the lower 64 bits represent the interface identifier portion of a unicast address?

1. IPv6 interface identifier
2. Modified EUI-64
3. FF02::1
4. /64 prefix

Correct Answer: A

 

Correct Answer

Answer A is correct because On a typical /64 IPv6 LAN, the lower 64 bits represent the interface identifier portion of a unicast address.

Incorrect Answers

Answer B is incorrect because the “Modified EUI-64” option describes a different concept: a method for deriving a 64-bit IPv6 interface identifier from a 48-bit MAC address by inserting FFFE and modifying the U/L bit.

Answer C is incorrect because the “FF02::1” option describes a different concept: FF02::1 is the IPv6 link-local all-nodes multicast address used to reach all IPv6 nodes on the local link.

Answer D is incorrect because the “/64 prefix” option describes a different concept: the standard IPv6 subnet prefix length used on most LAN segments.

 

Question 19

Which addressing difference must be considered when replacing an IPv4 broadcast-based discovery mechanism with IPv6?

1. Neighbor Discovery
2. SLAAC
3. IPv6 has no broadcast address
4. Link-local address

Correct Answer: C

 

Correct Answer

Answer C is correct because IPv6 does not use broadcast addressing; multicast is used for functions that would often rely on broadcast in IPv4.

Incorrect Answers

Answer A is incorrect because the “Neighbor Discovery” option describes a different concept: IPv6 Neighbor Discovery uses ICMPv6 messages for functions including router discovery, neighbor discovery, address resolution, and reachability tracking.

Answer B is incorrect because the “SLAAC” option describes a different concept: Stateless Address Autoconfiguration allows an IPv6 host to form addressing information from router advertisements without requiring a stateful DHCPv6 address assignment.

Answer D is incorrect because the “Link-local address” option describes a different concept: an IPv6 address used only on the local link, commonly from FE80::/10, and required for many IPv6 functions.

 

Question 20

What is an IPv6 address is written as eight 16-bit hexadecimal groups, commonly called hextets, before abbreviation rules are applied?

1. Link-local address
2. Unspecified address
3. FF02::1
4. IPv6 hexadecimal hextet

Correct Answer: D

 

Correct Answer

Answer D is correct because the selected answer describes an IPv6 address is written as eight 16-bit hexadecimal groups, commonly called hextets, before abbreviation rules are applied.

Incorrect Answers

Answer A is incorrect because the “Link-local address” option describes a different concept: an IPv6 address used only on the local link, commonly from FE80::/10, and required for many IPv6 functions.

Answer B is incorrect because the “Unspecified address” option describes a different concept: the IPv6 address :: used when a node does not yet have or is not specifying a source address.

Answer C is incorrect because the “FF02::1” option describes a different concept: FF02::1 is the IPv6 link-local all-nodes multicast address used to reach all IPv6 nodes on the local link.

 

Question 21

For Global unicast address, which statement is accurate?

3. An IPv6 unicast address intended to be globally routable, commonly drawn from 2000::/3.
4. FF02::2 is the IPv6 link-local all-routers multicast address used to reach all IPv6 routers on the local link.
5. An IPv6 address from FC00::/7 intended for private-style internal use rather than global Internet routing.
6. An IPv6 address is written as eight 16-bit hexadecimal groups, commonly called hextets, before abbreviation rules are applied.

Correct Answer: A

 

Correct Answer

Answer A is correct because it accurately defines Global unicast address. The matching definition is: An IPv6 unicast address intended to be globally routable, commonly drawn from 2000::/3.

Incorrect Answers

Answer B is incorrect because the “FF02::2” option describes a different concept: FF02::2 is the IPv6 link-local all-routers multicast address used to reach all IPv6 routers on the local link.

Answer C is incorrect because the “Unique local address” option describes a different concept: an IPv6 address from FC00::/7 intended for private-style internal use rather than global Internet routing.

Answer D is incorrect because the “IPv6 hexadecimal hextet” option describes a different concept: an IPv6 address is written as eight 16-bit hexadecimal groups, commonly called hextets, before abbreviation rules are applied.

 

Question 22

For Link-local address, which statement is accurate?

1. An IPv6 multicast address used by Neighbor Discovery for functions such as address resolution and duplicate address detection.
2. FF02::1 is the IPv6 link-local all-nodes multicast address used to reach all IPv6 nodes on the local link.
3. An IPv6 address used only on the local link, commonly from FE80::/10, and required for many IPv6 functions.
4. An IPv6 unicast address intended to be globally routable, commonly drawn from 2000::/3.

Correct Answer: C

 

Correct Answer

Answer C is correct because the choice accurately describes Link-local address: An IPv6 address used only on the local link, commonly from FE80::/10, and required for many IPv6 functions.

Incorrect Answers

Answer A is incorrect because the “Solicited-node multicast” option describes a different concept: an IPv6 multicast address used by Neighbor Discovery for functions such as address resolution and duplicate address detection.

Answer B is incorrect because the “FF02::1” option describes a different concept: FF02::1 is the IPv6 link-local all-nodes multicast address used to reach all IPv6 nodes on the local link.

Answer D is incorrect because the “Global unicast address” option describes a different concept: an IPv6 unicast address intended to be globally routable, commonly drawn from 2000::/3.

 

Question 23

For Unique local address, which statement is accurate?

1. FF02::2 is the IPv6 link-local all-routers multicast address used to reach all IPv6 routers on the local link.
2. An IPv6 address from FC00::/7 intended for private-style internal use rather than global Internet routing.
3. An IPv6 unicast address intended to be globally routable, commonly drawn from 2000::/3.
4. A unicast-format IPv6 address assigned to multiple interfaces so routing delivers traffic to the nearest instance.

Correct Answer: B

 

Correct Answer

Answer B is correct because the selected answer describes an IPv6 address from FC00::/7 intended for private-style internal use rather than global Internet routing.

Incorrect Answers

Answer A is incorrect because the “FF02::2” option describes a different concept: FF02::2 is the IPv6 link-local all-routers multicast address used to reach all IPv6 routers on the local link.

Answer C is incorrect because the “Global unicast address” option describes a different concept: an IPv6 unicast address intended to be globally routable, commonly drawn from 2000::/3.

Answer D is incorrect because the “Anycast address” option describes a different concept: a unicast-format IPv6 address assigned to multiple interfaces so routing delivers traffic to the nearest instance.

 

Question 24

For Multicast address, which statement is accurate?

1. An IPv6 multicast address used by Neighbor Discovery for functions such as address resolution and duplicate address detection.
2. An IPv6 address from FC00::/7 intended for private-style internal use rather than global Internet routing.
3. The IPv6 address ::1 used by a host to refer to itself.
4. An IPv6 address from FF00::/8 that identifies a group of interfaces; IPv6 does not use broadcast addresses.

Correct Answer: D

 

Correct Answer

Answer D is correct because the selected answer describes an IPv6 address from FF00::/8 that identifies a group of interfaces; IPv6 does not use broadcast addresses.

Incorrect Answers

Answer A is incorrect because the “Solicited-node multicast” option describes a different concept: an IPv6 multicast address used by Neighbor Discovery for functions such as address resolution and duplicate address detection.

Answer B is incorrect because the “Unique local address” option describes a different concept: an IPv6 address from FC00::/7 intended for private-style internal use rather than global Internet routing.

Answer C is incorrect because the “Loopback address” option describes a different concept: the IPv6 address ::1 used by a host to refer to itself.

 

Question 25

For Anycast address, which statement is accurate?

1. The IPv6 address ::1 used by a host to refer to itself.
2. An IPv6 unicast address intended to be globally routable, commonly drawn from 2000::/3.
3. On a typical /64 IPv6 LAN, the lower 64 bits represent the interface identifier portion of a unicast address.
4. A unicast-format IPv6 address assigned to multiple interfaces so routing delivers traffic to the nearest instance.

Correct Answer: D

 

Correct Answer

Answer D is correct because it accurately defines Anycast address. The matching definition is: A unicast-format IPv6 address assigned to multiple interfaces so routing delivers traffic to the nearest instance.

Incorrect Answers

Answer A is incorrect because the “Loopback address” option describes a different concept: the IPv6 address ::1 used by a host to refer to itself.

Answer B is incorrect because the “Global unicast address” option describes a different concept: an IPv6 unicast address intended to be globally routable, commonly drawn from 2000::/3.

Answer C is incorrect because the “IPv6 interface identifier” option describes a different concept: On a typical /64 IPv6 LAN, the lower 64 bits represent the interface identifier portion of a unicast address.

 

Question 26

For Loopback address, which statement is accurate?

1. The IPv6 address ::1 used by a host to refer to itself.
2. IPv6 does not use broadcast addressing; multicast is used for functions that would often rely on broadcast in IPv4.
3. An IPv6 multicast address used by Neighbor Discovery for functions such as address resolution and duplicate address detection.
4. Stateless Address Autoconfiguration allows an IPv6 host to form addressing information from router advertisements without requiring a stateful DHCPv6 address assignment.

Correct Answer: A

 

Correct Answer

Answer A is correct because the choice accurately describes Loopback address: The IPv6 address ::1 used by a host to refer to itself.

Incorrect Answers

Answer B is incorrect because the “IPv6 has no broadcast address” option describes a different concept: IPv6 does not use broadcast addressing; multicast is used for functions that would often rely on broadcast in IPv4.

Answer C is incorrect because the “Solicited-node multicast” option describes a different concept: an IPv6 multicast address used by Neighbor Discovery for functions such as address resolution and duplicate address detection.

Answer D is incorrect because the “SLAAC” option describes a different concept: Stateless Address Autoconfiguration allows an IPv6 host to form addressing information from router advertisements without requiring a stateful DHCPv6 address assignment.

 

Question 27

For Unspecified address, which statement is accurate?

1. The IPv6 address ::1 used by a host to refer to itself.
2. The IPv6 address :: used when a node does not yet have or is not specifying a source address.
3. IPv6 does not use broadcast addressing; multicast is used for functions that would often rely on broadcast in IPv4.
4. FF02::1 is the IPv6 link-local all-nodes multicast address used to reach all IPv6 nodes on the local link.

Correct Answer: B

 

Correct Answer

Answer B is correct because the selected answer describes the IPv6 address :: used when a node does not yet have or is not specifying a source address.

Incorrect Answers

Answer A is incorrect because the “Loopback address” option describes a different concept: the IPv6 address ::1 used by a host to refer to itself.

Answer C is incorrect because the “IPv6 has no broadcast address” option describes a different concept: IPv6 does not use broadcast addressing; multicast is used for functions that would often rely on broadcast in IPv4.

Answer D is incorrect because the “FF02::1” option describes a different concept: FF02::1 is the IPv6 link-local all-nodes multicast address used to reach all IPv6 nodes on the local link.

 

Question 28

For /64 prefix, which statement is accurate?

1. The standard IPv6 subnet prefix length used on most LAN segments.
2. An IPv6 unicast address intended to be globally routable, commonly drawn from 2000::/3.
3. On a typical /64 IPv6 LAN, the lower 64 bits represent the interface identifier portion of a unicast address.
4. An IPv6 address used only on the local link, commonly from FE80::/10, and required for many IPv6 functions.

Correct Answer: A

 

Correct Answer

Answer A is correct because the selected answer describes the standard IPv6 subnet prefix length used on most LAN segments.

Incorrect Answers

Answer B is incorrect because the “Global unicast address” option describes a different concept: an IPv6 unicast address intended to be globally routable, commonly drawn from 2000::/3.

Answer C is incorrect because the “IPv6 interface identifier” option describes a different concept: On a typical /64 IPv6 LAN, the lower 64 bits represent the interface identifier portion of a unicast address.

Answer D is incorrect because the “Link-local address” option describes a different concept: an IPv6 address used only on the local link, commonly from FE80::/10, and required for many IPv6 functions.

 

Question 29

For Modified EUI-64, which statement is accurate?

1. FF02::1 is the IPv6 link-local all-nodes multicast address used to reach all IPv6 nodes on the local link.
2. A method for deriving a 64-bit IPv6 interface identifier from a 48-bit MAC address by inserting FFFE and modifying the U/L bit.
3. IPv6 Neighbor Discovery uses ICMPv6 messages for functions including router discovery, neighbor discovery, address resolution, and reachability tracking.
4. The IPv6 address ::1 used by a host to refer to itself.

Correct Answer: B

 

Correct Answer

Answer B is correct because it accurately defines Modified EUI-64. The matching definition is: A method for deriving a 64-bit IPv6 interface identifier from a 48-bit MAC address by inserting FFFE and modifying the U/L bit.

Incorrect Answers

Answer A is incorrect because the “FF02::1” option describes a different concept: FF02::1 is the IPv6 link-local all-nodes multicast address used to reach all IPv6 nodes on the local link.

Answer C is incorrect because the “Neighbor Discovery” option describes a different concept: IPv6 Neighbor Discovery uses ICMPv6 messages for functions including router discovery, neighbor discovery, address resolution, and reachability tracking.

Answer D is incorrect because the “Loopback address” option describes a different concept: the IPv6 address ::1 used by a host to refer to itself.

 

Question 30

For Solicited-node multicast, which statement is accurate?

1. IPv6 Neighbor Discovery uses ICMPv6 messages for functions including router discovery, neighbor discovery, address resolution, and reachability tracking.
2. An IPv6 multicast address used by Neighbor Discovery for functions such as address resolution and duplicate address detection.
3. An IPv6 address used only on the local link, commonly from FE80::/10, and required for many IPv6 functions.
4. The IPv6 address :: used when a node does not yet have or is not specifying a source address.

Correct Answer: B

 

Correct Answer

Answer B is correct because the choice accurately describes Solicited-node multicast: An IPv6 multicast address used by Neighbor Discovery for functions such as address resolution and duplicate address detection.

Incorrect Answers

Answer A is incorrect because the “Neighbor Discovery” option describes a different concept: IPv6 Neighbor Discovery uses ICMPv6 messages for functions including router discovery, neighbor discovery, address resolution, and reachability tracking.

Answer C is incorrect because the “Link-local address” option describes a different concept: an IPv6 address used only on the local link, commonly from FE80::/10, and required for many IPv6 functions.

Answer D is incorrect because the “Unspecified address” option describes a different concept: the IPv6 address :: used when a node does not yet have or is not specifying a source address.

 

Question 31

For Leading-zero suppression, which statement is accurate?

1. Stateless Address Autoconfiguration allows an IPv6 host to form addressing information from router advertisements without requiring a stateful DHCPv6 address assignment.
2. IPv6 notation allows leading zeros within any 16-bit hextet to be omitted, so 00ab can be written as ab.
3. IPv6 notation allows one contiguous run of all-zero hextets to be replaced by a double colon, and the double-colon abbreviation can be used only once in an address.
4. On a typical /64 IPv6 LAN, the lower 64 bits represent the interface identifier portion of a unicast address.

Correct Answer: B

 

Correct Answer

Answer B is correct because IPv6 notation allows leading zeros within any 16-bit hextet to be omitted, so 00ab can be written as ab.

Incorrect Answers

Answer A is incorrect because the “SLAAC” option describes a different concept: Stateless Address Autoconfiguration allows an IPv6 host to form addressing information from router advertisements without requiring a stateful DHCPv6 address assignment.

Answer C is incorrect because the “Zero compression” option describes a different concept: IPv6 notation allows one contiguous run of all-zero hextets to be replaced by a double colon, and the double-colon abbreviation can be used only once in an address.

Answer D is incorrect because the “IPv6 interface identifier” option describes a different concept: On a typical /64 IPv6 LAN, the lower 64 bits represent the interface identifier portion of a unicast address.

 

Question 32

For Zero compression, which statement is accurate?

1. The IPv6 address :: used when a node does not yet have or is not specifying a source address.
2. IPv6 notation allows leading zeros within any 16-bit hextet to be omitted, so 00ab can be written as ab.
3. An IPv6 unicast address intended to be globally routable, commonly drawn from 2000::/3.
4. IPv6 notation allows one contiguous run of all-zero hextets to be replaced by a double colon, and the double-colon abbreviation can be used only once in an address.

Correct Answer: D

 

Correct Answer

Answer D is correct because IPv6 notation allows one contiguous run of all-zero hextets to be replaced by a double colon, and the double-colon abbreviation can be used only once in an address.

Incorrect Answers

Answer A is incorrect because the “Unspecified address” option describes a different concept: the IPv6 address :: used when a node does not yet have or is not specifying a source address.

Answer B is incorrect because the “Leading-zero suppression” option describes a different concept: IPv6 notation allows leading zeros within any 16-bit hextet to be omitted, so 00ab can be written as ab.

Answer C is incorrect because the “Global unicast address” option describes a different concept: an IPv6 unicast address intended to be globally routable, commonly drawn from 2000::/3.

 

Question 33

For FF02::1, which statement is accurate?

1. An IPv6 multicast address used by Neighbor Discovery for functions such as address resolution and duplicate address detection.
2. The IPv6 address ::1 used by a host to refer to itself.
3. An IPv6 address from FF00::/8 that identifies a group of interfaces; IPv6 does not use broadcast addresses.
4. FF02::1 is the IPv6 link-local all-nodes multicast address used to reach all IPv6 nodes on the local link.

Correct Answer: D

 

Correct Answer

Answer D is correct because it accurately defines FF02::1. The matching definition is: FF02::1 is the IPv6 link-local all-nodes multicast address used to reach all IPv6 nodes on the local link.

Incorrect Answers

Answer A is incorrect because the “Solicited-node multicast” option describes a different concept: an IPv6 multicast address used by Neighbor Discovery for functions such as address resolution and duplicate address detection.

Answer B is incorrect because the “Loopback address” option describes a different concept: the IPv6 address ::1 used by a host to refer to itself.

Answer C is incorrect because the “Multicast address” option describes a different concept: an IPv6 address from FF00::/8 that identifies a group of interfaces; IPv6 does not use broadcast addresses.

 

Question 34

For FF02::2, which statement is accurate?

1. An IPv6 address from FC00::/7 intended for private-style internal use rather than global Internet routing.
2. IPv6 notation allows one contiguous run of all-zero hextets to be replaced by a double colon, and the double-colon abbreviation can be used only once in an address.
3. An IPv6 address used only on the local link, commonly from FE80::/10, and required for many IPv6 functions.
4. FF02::2 is the IPv6 link-local all-routers multicast address used to reach all IPv6 routers on the local link.

Correct Answer: D

 

Correct Answer

Answer D is correct because the choice accurately describes FF02::2: FF02::2 is the IPv6 link-local all-routers multicast address used to reach all IPv6 routers on the local link.

Incorrect Answers

Answer A is incorrect because the “Unique local address” option describes a different concept: an IPv6 address from FC00::/7 intended for private-style internal use rather than global Internet routing.

Answer B is incorrect because the “Zero compression” option describes a different concept: IPv6 notation allows one contiguous run of all-zero hextets to be replaced by a double colon, and the double-colon abbreviation can be used only once in an address.

Answer C is incorrect because the “Link-local address” option describes a different concept: an IPv6 address used only on the local link, commonly from FE80::/10, and required for many IPv6 functions.

 

Question 35

For SLAAC, which statement is accurate?

1. An IPv6 address used only on the local link, commonly from FE80::/10, and required for many IPv6 functions.
2. Stateless Address Autoconfiguration allows an IPv6 host to form addressing information from router advertisements without requiring a stateful DHCPv6 address assignment.
3. IPv6 notation allows one contiguous run of all-zero hextets to be replaced by a double colon, and the double-colon abbreviation can be used only once in an address.
4. The IPv6 address :: used when a node does not yet have or is not specifying a source address.

Correct Answer: B

 

Correct Answer

Answer B is correct because Stateless Address Autoconfiguration allows an IPv6 host to form addressing information from router advertisements without requiring a stateful DHCPv6 address assignment.

Incorrect Answers

Answer A is incorrect because the “Link-local address” option describes a different concept: an IPv6 address used only on the local link, commonly from FE80::/10, and required for many IPv6 functions.

Answer C is incorrect because the “Zero compression” option describes a different concept: IPv6 notation allows one contiguous run of all-zero hextets to be replaced by a double colon, and the double-colon abbreviation can be used only once in an address.

Answer D is incorrect because the “Unspecified address” option describes a different concept: the IPv6 address :: used when a node does not yet have or is not specifying a source address.

 

Question 36

For Neighbor Discovery, which statement is accurate?

1. IPv6 Neighbor Discovery uses ICMPv6 messages for functions including router discovery, neighbor discovery, address resolution, and reachability tracking.
2. IPv6 does not use broadcast addressing; multicast is used for functions that would often rely on broadcast in IPv4.
3. An IPv6 multicast address used by Neighbor Discovery for functions such as address resolution and duplicate address detection.
4. FF02::2 is the IPv6 link-local all-routers multicast address used to reach all IPv6 routers on the local link.

Correct Answer: A

 

Correct Answer

Answer A is correct because IPv6 Neighbor Discovery uses ICMPv6 messages for functions including router discovery, neighbor discovery, address resolution, and reachability tracking.

Incorrect Answers

Answer B is incorrect because the “IPv6 has no broadcast address” option describes a different concept: IPv6 does not use broadcast addressing; multicast is used for functions that would often rely on broadcast in IPv4.

Answer C is incorrect because the “Solicited-node multicast” option describes a different concept: an IPv6 multicast address used by Neighbor Discovery for functions such as address resolution and duplicate address detection.

Answer D is incorrect because the “FF02::2” option describes a different concept: FF02::2 is the IPv6 link-local all-routers multicast address used to reach all IPv6 routers on the local link.

 

Question 37

For IPv6 prefix length, which statement is accurate?

1. An IPv6 multicast address used by Neighbor Discovery for functions such as address resolution and duplicate address detection.
2. The IPv6 address ::1 used by a host to refer to itself.
3. An IPv6 prefix length specifies the number of leading bits that identify the network prefix, using notation such as /64.
4. The standard IPv6 subnet prefix length used on most LAN segments.

Correct Answer: C

 

Correct Answer

Answer C is correct because it accurately defines IPv6 prefix length. The matching definition is: An IPv6 prefix length specifies the number of leading bits that identify the network prefix, using notation such as /64.

Incorrect Answers

Answer A is incorrect because the “Solicited-node multicast” option describes a different concept: an IPv6 multicast address used by Neighbor Discovery for functions such as address resolution and duplicate address detection.

Answer B is incorrect because the “Loopback address” option describes a different concept: the IPv6 address ::1 used by a host to refer to itself.

Answer D is incorrect because the “/64 prefix” option describes a different concept: the standard IPv6 subnet prefix length used on most LAN segments.

 

Question 38

For IPv6 interface identifier, which statement is accurate?

1. On a typical /64 IPv6 LAN, the lower 64 bits represent the interface identifier portion of a unicast address.
2. An IPv6 address used only on the local link, commonly from FE80::/10, and required for many IPv6 functions.
3. FF02::2 is the IPv6 link-local all-routers multicast address used to reach all IPv6 routers on the local link.
4. A method for deriving a 64-bit IPv6 interface identifier from a 48-bit MAC address by inserting FFFE and modifying the U/L bit.

Correct Answer: A

 

Correct Answer

Answer A is correct because the choice accurately describes IPv6 interface identifier: On a typical /64 IPv6 LAN, the lower 64 bits represent the interface identifier portion of a unicast address.

Incorrect Answers

Answer B is incorrect because the “Link-local address” option describes a different concept: an IPv6 address used only on the local link, commonly from FE80::/10, and required for many IPv6 functions.

Answer C is incorrect because the “FF02::2” option describes a different concept: FF02::2 is the IPv6 link-local all-routers multicast address used to reach all IPv6 routers on the local link.

Answer D is incorrect because the “Modified EUI-64” option describes a different concept: a method for deriving a 64-bit IPv6 interface identifier from a 48-bit MAC address by inserting FFFE and modifying the U/L bit.

 

Question 39

For IPv6 has no broadcast address, which statement is accurate?

1. FF02::2 is the IPv6 link-local all-routers multicast address used to reach all IPv6 routers on the local link.
2. An IPv6 address used only on the local link, commonly from FE80::/10, and required for many IPv6 functions.
3. IPv6 does not use broadcast addressing; multicast is used for functions that would often rely on broadcast in IPv4.
4. The IPv6 address :: used when a node does not yet have or is not specifying a source address.

Correct Answer: C

 

Correct Answer

Answer C is correct because IPv6 does not use broadcast addressing; multicast is used for functions that would often rely on broadcast in IPv4.

Incorrect Answers

Answer A is incorrect because the “FF02::2” option describes a different concept: FF02::2 is the IPv6 link-local all-routers multicast address used to reach all IPv6 routers on the local link.

Answer B is incorrect because the “Link-local address” option describes a different concept: an IPv6 address used only on the local link, commonly from FE80::/10, and required for many IPv6 functions.

Answer D is incorrect because the “Unspecified address” option describes a different concept: the IPv6 address :: used when a node does not yet have or is not specifying a source address.

 

Question 40

For IPv6 hexadecimal hextet, which statement is accurate?

1. An IPv6 address is written as eight 16-bit hexadecimal groups, commonly called hextets, before abbreviation rules are applied.
2. IPv6 notation allows one contiguous run of all-zero hextets to be replaced by a double colon, and the double-colon abbreviation can be used only once in an address.
3. An IPv6 unicast address intended to be globally routable, commonly drawn from 2000::/3.
4. On a typical /64 IPv6 LAN, the lower 64 bits represent the interface identifier portion of a unicast address.

Correct Answer: A

 

Correct Answer

Answer A is correct because the selected answer describes an IPv6 address is written as eight 16-bit hexadecimal groups, commonly called hextets, before abbreviation rules are applied.

Incorrect Answers

Answer B is incorrect because the “Zero compression” option describes a different concept: IPv6 notation allows one contiguous run of all-zero hextets to be replaced by a double colon, and the double-colon abbreviation can be used only once in an address.

Answer C is incorrect because the “Global unicast address” option describes a different concept: an IPv6 unicast address intended to be globally routable, commonly drawn from 2000::/3.

Answer D is incorrect because the “IPv6 interface identifier” option describes a different concept: On a typical /64 IPv6 LAN, the lower 64 bits represent the interface identifier portion of a unicast address.