CompTIA Network+ N10-009 VLANs Trunks Link Aggregation STP And MTU Practice Test

 

Objective 2.2 • 25 original questions

This CompTIA Network+ N10-009 practice test focuses on switching technologies and features. All questions are original ExamSnap scenarios aligned to the current N10-009 blueprint; they are not copied from CompTIA exam content. Use the complete N10-009 collection for broader practice across all five domains. For broader exam preparation, review the CompTIA Network+ N10-009 Exam Dumps page.

Instructions: Select the best answer for each question. Review the explanation after answering; each distractor includes a reason it is not the best choice for that scenario.

Question 1

At Litware Manufacturing, a systems administrator is reviewing a network change. The requirement is to separate departments into distinct Layer 2 broadcast domains on the same switch infrastructure. Which option is the best fit? The decision applies to a branch-office rollout.

1. MTU
2. Voice VLAN
3. SVI
4. VLAN
5. Jumbo frames

Correct answer: D

Why: Logically segments a Layer 2 switch network into separate broadcast domains. This directly satisfies the requirement: separate departments into distinct Layer 2 broadcast domains on the same switch infrastructure.

Option review:

A: Defines the largest Layer 3 packet/frame payload size supported without fragmentation at an interface/path. However, it does not most directly satisfy the requirement in this scenario: separate departments into distinct Layer 2 broadcast domains on the same switch infrastructure.

B: Places IP phone traffic in a dedicated VLAN, often alongside a data VLAN on the same access port. However, it does not most directly satisfy the requirement in this scenario: separate departments into distinct Layer 2 broadcast domains on the same switch infrastructure.

C: A switched virtual interface provides a Layer 3 interface associated with a VLAN on a multilayer switch. However, it does not most directly satisfy the requirement in this scenario: separate departments into distinct Layer 2 broadcast domains on the same switch infrastructure.

D: Logically segments a Layer 2 switch network into separate broadcast domains. This directly satisfies the requirement: separate departments into distinct Layer 2 broadcast domains on the same switch infrastructure.

E: Use a larger-than-standard Ethernet MTU end to end where supported, often in storage/data-center networks. However, it does not most directly satisfy the requirement in this scenario: separate departments into distinct Layer 2 broadcast domains on the same switch infrastructure.

Learning point: Use VLAN when the key requirement is to separate departments into distinct Layer 2 broadcast domains on the same switch infrastructure.

Question 2

A ticket at Woodgrove Bank says the team must create or verify which VLAN IDs exist on a switch. Which technology or concept most directly addresses this requirement? The decision applies to a campus refresh.

802. 802.1Q trunking
803. Link aggregation
804. Jumbo frames
805. VLAN
806. VLAN database

Correct answer: E

Why: Stores switch VLAN definitions and identifiers. This directly satisfies the requirement: create or verify which VLAN IDs exist on a switch.

Option review:

A: Tags Ethernet frames so multiple VLANs can traverse one link. However, it does not most directly satisfy the requirement in this scenario: create or verify which VLAN IDs exist on a switch.

B: Bundles multiple physical links into one logical link for bandwidth and redundancy. However, it does not most directly satisfy the requirement in this scenario: create or verify which VLAN IDs exist on a switch.

C: Use a larger-than-standard Ethernet MTU end to end where supported, often in storage/data-center networks. However, it does not most directly satisfy the requirement in this scenario: create or verify which VLAN IDs exist on a switch.

D: Logically segments a Layer 2 switch network into separate broadcast domains. However, it does not most directly satisfy the requirement in this scenario: create or verify which VLAN IDs exist on a switch.

E: Stores switch VLAN definitions and identifiers. This directly satisfies the requirement: create or verify which VLAN IDs exist on a switch.

Learning point: Use VLAN database when the key requirement is to create or verify which VLAN IDs exist on a switch.

Question 3

During a design meeting at Blue Yonder Airlines, the junior network administrator needs to provide a gateway or management IP interface for a VLAN on a Layer 3 switch. What should be selected? The decision applies to a data-center segment.

1. Link aggregation
2. SVI
3. Native VLAN
4. VLAN database
5. Spanning Tree Protocol

Correct answer: B

Why: A switched virtual interface provides a Layer 3 interface associated with a VLAN on a multilayer switch. This directly satisfies the requirement: provide a gateway or management IP interface for a VLAN on a Layer 3 switch.

Option review:

A: Bundles multiple physical links into one logical link for bandwidth and redundancy. However, it does not most directly satisfy the requirement in this scenario: provide a gateway or management IP interface for a VLAN on a Layer 3 switch.

B: A switched virtual interface provides a Layer 3 interface associated with a VLAN on a multilayer switch. This directly satisfies the requirement: provide a gateway or management IP interface for a VLAN on a Layer 3 switch.

C: Carries untagged traffic on an 802.1Q trunk when native VLAN behavior is used. However, it does not most directly satisfy the requirement in this scenario: provide a gateway or management IP interface for a VLAN on a Layer 3 switch.

D: Stores switch VLAN definitions and identifiers. However, it does not most directly satisfy the requirement in this scenario: provide a gateway or management IP interface for a VLAN on a Layer 3 switch.

E: Prevents Layer 2 loops by placing redundant switch links into controlled forwarding/blocking roles. However, it does not most directly satisfy the requirement in this scenario: provide a gateway or management IP interface for a VLAN on a Layer 3 switch.

Learning point: Use SVI when the key requirement is to provide a gateway or management IP interface for a VLAN on a Layer 3 switch.

Question 4

Contoso Health is updating its network standard. Which option best meets the need to identify which VLAN receives untagged frames on a trunk? The decision applies to a remote-site migration.

1. SVI
2. Link aggregation
3. MTU
4. Native VLAN
5. VLAN

Correct answer: D

Why: Carries untagged traffic on an 802.1Q trunk when native VLAN behavior is used. This directly satisfies the requirement: identify which VLAN receives untagged frames on a trunk.

Option review:

A: A switched virtual interface provides a Layer 3 interface associated with a VLAN on a multilayer switch. However, it does not most directly satisfy the requirement in this scenario: identify which VLAN receives untagged frames on a trunk.

B: Bundles multiple physical links into one logical link for bandwidth and redundancy. However, it does not most directly satisfy the requirement in this scenario: identify which VLAN receives untagged frames on a trunk.

C: Defines the largest Layer 3 packet/frame payload size supported without fragmentation at an interface/path. However, it does not most directly satisfy the requirement in this scenario: identify which VLAN receives untagged frames on a trunk.

D: Carries untagged traffic on an 802.1Q trunk when native VLAN behavior is used. This directly satisfies the requirement: identify which VLAN receives untagged frames on a trunk.

E: Logically segments a Layer 2 switch network into separate broadcast domains. However, it does not most directly satisfy the requirement in this scenario: identify which VLAN receives untagged frames on a trunk.

Learning point: Use Native VLAN when the key requirement is to identify which VLAN receives untagged frames on a trunk.

Question 5

A field technician at Litware Manufacturing is validating a proposed solution. The design must separate phone traffic from workstation data on a shared access connection. Which answer is most appropriate? The decision applies to a operations lab.

1. Voice VLAN
2. MTU
3. Jumbo frames
4. Spanning Tree Protocol
5. Native VLAN

Correct answer: A

Why: Places IP phone traffic in a dedicated VLAN, often alongside a data VLAN on the same access port. This directly satisfies the requirement: separate phone traffic from workstation data on a shared access connection.

Option review:

A: Places IP phone traffic in a dedicated VLAN, often alongside a data VLAN on the same access port. This directly satisfies the requirement: separate phone traffic from workstation data on a shared access connection.

B: Defines the largest Layer 3 packet/frame payload size supported without fragmentation at an interface/path. However, it does not most directly satisfy the requirement in this scenario: separate phone traffic from workstation data on a shared access connection.

C: Use a larger-than-standard Ethernet MTU end to end where supported, often in storage/data-center networks. However, it does not most directly satisfy the requirement in this scenario: separate phone traffic from workstation data on a shared access connection.

D: Prevents Layer 2 loops by placing redundant switch links into controlled forwarding/blocking roles. However, it does not most directly satisfy the requirement in this scenario: separate phone traffic from workstation data on a shared access connection.

E: Carries untagged traffic on an 802.1Q trunk when native VLAN behavior is used. However, it does not most directly satisfy the requirement in this scenario: separate phone traffic from workstation data on a shared access connection.

Learning point: Use Voice VLAN when the key requirement is to separate phone traffic from workstation data on a shared access connection.

Question 6

For a new deployment at Woodgrove Bank, the networking team wants to carry several VLANs between switches over one physical link. Which choice most directly satisfies the goal? The decision applies to a production maintenance window.

1. Link aggregation
2. 802.1Q trunking
3. Speed/duplex configuration
4. VLAN database
5. MTU

Correct answer: B

Why: Tags Ethernet frames so multiple VLANs can traverse one link. This directly satisfies the requirement: carry several VLANs between switches over one physical link.

Option review:

A: Bundles multiple physical links into one logical link for bandwidth and redundancy. However, it does not most directly satisfy the requirement in this scenario: carry several VLANs between switches over one physical link.

B: Tags Ethernet frames so multiple VLANs can traverse one link. This directly satisfies the requirement: carry several VLANs between switches over one physical link.

C: Matched speed and duplex settings prevent negotiation-related performance problems. However, it does not most directly satisfy the requirement in this scenario: carry several VLANs between switches over one physical link.

D: Stores switch VLAN definitions and identifiers. However, it does not most directly satisfy the requirement in this scenario: carry several VLANs between switches over one physical link.

E: Defines the largest Layer 3 packet/frame payload size supported without fragmentation at an interface/path. However, it does not most directly satisfy the requirement in this scenario: carry several VLANs between switches over one physical link.

Learning point: Use 802.1Q trunking when the key requirement is to carry several VLANs between switches over one physical link.

Question 7

At Blue Yonder Airlines, a systems administrator is reviewing a network change. The requirement is to combine several switch links into a single logical connection. Which option is the best fit? The decision applies to a new floor deployment.

1. Native VLAN
2. Link aggregation
3. 802.1Q trunking
4. Spanning Tree Protocol
5. Jumbo frames

Correct answer: B

Why: Bundles multiple physical links into one logical link for bandwidth and redundancy. This directly satisfies the requirement: combine several switch links into a single logical connection.

Option review:

A: Carries untagged traffic on an 802.1Q trunk when native VLAN behavior is used. However, it does not most directly satisfy the requirement in this scenario: combine several switch links into a single logical connection.

B: Bundles multiple physical links into one logical link for bandwidth and redundancy. This directly satisfies the requirement: combine several switch links into a single logical connection.

C: Tags Ethernet frames so multiple VLANs can traverse one link. However, it does not most directly satisfy the requirement in this scenario: combine several switch links into a single logical connection.

D: Prevents Layer 2 loops by placing redundant switch links into controlled forwarding/blocking roles. However, it does not most directly satisfy the requirement in this scenario: combine several switch links into a single logical connection.

E: Use a larger-than-standard Ethernet MTU end to end where supported, often in storage/data-center networks. However, it does not most directly satisfy the requirement in this scenario: combine several switch links into a single logical connection.

Learning point: Use Link aggregation when the key requirement is to combine several switch links into a single logical connection.

Question 8

A ticket at Contoso Health says the team must ensure both ends of an Ethernet link agree on speed and duplex operation. Which technology or concept most directly addresses this requirement? The decision applies to a service-recovery review.

1. Link aggregation
2. Spanning Tree Protocol
3. MTU
4. Speed/duplex configuration
5. VLAN

Correct answer: D

Why: Matched speed and duplex settings prevent negotiation-related performance problems. This directly satisfies the requirement: ensure both ends of an Ethernet link agree on speed and duplex operation.

Option review:

A: Bundles multiple physical links into one logical link for bandwidth and redundancy. However, it does not most directly satisfy the requirement in this scenario: ensure both ends of an Ethernet link agree on speed and duplex operation.

B: Prevents Layer 2 loops by placing redundant switch links into controlled forwarding/blocking roles. However, it does not most directly satisfy the requirement in this scenario: ensure both ends of an Ethernet link agree on speed and duplex operation.

C: Defines the largest Layer 3 packet/frame payload size supported without fragmentation at an interface/path. However, it does not most directly satisfy the requirement in this scenario: ensure both ends of an Ethernet link agree on speed and duplex operation.

D: Matched speed and duplex settings prevent negotiation-related performance problems. This directly satisfies the requirement: ensure both ends of an Ethernet link agree on speed and duplex operation.

E: Logically segments a Layer 2 switch network into separate broadcast domains. However, it does not most directly satisfy the requirement in this scenario: ensure both ends of an Ethernet link agree on speed and duplex operation.

Learning point: Use Speed/duplex configuration when the key requirement is to ensure both ends of an Ethernet link agree on speed and duplex operation.

Question 9

During a design meeting at Litware Manufacturing, the junior network administrator needs to retain redundant switch links without creating a broadcast loop. What should be selected? The decision applies to a branch-office rollout.

1. Voice VLAN
2. Spanning Tree Protocol
3. Jumbo frames
4. Native VLAN
5. Link aggregation

Correct answer: B

Why: Prevents Layer 2 loops by placing redundant switch links into controlled forwarding/blocking roles. This directly satisfies the requirement: retain redundant switch links without creating a broadcast loop.

Option review:

A: Places IP phone traffic in a dedicated VLAN, often alongside a data VLAN on the same access port. However, it does not most directly satisfy the requirement in this scenario: retain redundant switch links without creating a broadcast loop.

B: Prevents Layer 2 loops by placing redundant switch links into controlled forwarding/blocking roles. This directly satisfies the requirement: retain redundant switch links without creating a broadcast loop.

C: Use a larger-than-standard Ethernet MTU end to end where supported, often in storage/data-center networks. However, it does not most directly satisfy the requirement in this scenario: retain redundant switch links without creating a broadcast loop.

D: Carries untagged traffic on an 802.1Q trunk when native VLAN behavior is used. However, it does not most directly satisfy the requirement in this scenario: retain redundant switch links without creating a broadcast loop.

E: Bundles multiple physical links into one logical link for bandwidth and redundancy. However, it does not most directly satisfy the requirement in this scenario: retain redundant switch links without creating a broadcast loop.

Learning point: Use Spanning Tree Protocol when the key requirement is to retain redundant switch links without creating a broadcast loop.

Question 10

Woodgrove Bank is updating its network standard. Which option best meets the need to control the maximum packet/frame size accepted on a link? The decision applies to a campus refresh.

1. Speed/duplex configuration
2. MTU
3. 802.1Q trunking
4. VLAN database
5. VLAN

Correct answer: B

Why: Defines the largest Layer 3 packet/frame payload size supported without fragmentation at an interface/path. This directly satisfies the requirement: control the maximum packet/frame size accepted on a link.

Option review:

A: Matched speed and duplex settings prevent negotiation-related performance problems. However, it does not most directly satisfy the requirement in this scenario: control the maximum packet/frame size accepted on a link.

B: Defines the largest Layer 3 packet/frame payload size supported without fragmentation at an interface/path. This directly satisfies the requirement: control the maximum packet/frame size accepted on a link.

C: Tags Ethernet frames so multiple VLANs can traverse one link. However, it does not most directly satisfy the requirement in this scenario: control the maximum packet/frame size accepted on a link.

D: Stores switch VLAN definitions and identifiers. However, it does not most directly satisfy the requirement in this scenario: control the maximum packet/frame size accepted on a link.

E: Logically segments a Layer 2 switch network into separate broadcast domains. However, it does not most directly satisfy the requirement in this scenario: control the maximum packet/frame size accepted on a link.

Learning point: Use MTU when the key requirement is to control the maximum packet/frame size accepted on a link.

Question 11

A field technician at Blue Yonder Airlines is validating a proposed solution. The design must reduce per-packet overhead for a high-throughput network where every device supports larger frames. Which answer is most appropriate? The decision applies to a data-center segment.

1. Native VLAN
2. Voice VLAN
3. Jumbo frames
4. 802.1Q trunking
5. MTU

Correct answer: C

Why: Use a larger-than-standard Ethernet MTU end to end where supported, often in storage/data-center networks. This directly satisfies the requirement: reduce per-packet overhead for a high-throughput network where every device supports larger frames.

Option review:

A: Carries untagged traffic on an 802.1Q trunk when native VLAN behavior is used. However, it does not most directly satisfy the requirement in this scenario: reduce per-packet overhead for a high-throughput network where every device supports larger frames.

B: Places IP phone traffic in a dedicated VLAN, often alongside a data VLAN on the same access port. However, it does not most directly satisfy the requirement in this scenario: reduce per-packet overhead for a high-throughput network where every device supports larger frames.

C: Use a larger-than-standard Ethernet MTU end to end where supported, often in storage/data-center networks. This directly satisfies the requirement: reduce per-packet overhead for a high-throughput network where every device supports larger frames.

D: Tags Ethernet frames so multiple VLANs can traverse one link. However, it does not most directly satisfy the requirement in this scenario: reduce per-packet overhead for a high-throughput network where every device supports larger frames.

E: Defines the largest Layer 3 packet/frame payload size supported without fragmentation at an interface/path. However, it does not most directly satisfy the requirement in this scenario: reduce per-packet overhead for a high-throughput network where every device supports larger frames.

Learning point: Use Jumbo frames when the key requirement is to reduce per-packet overhead for a high-throughput network where every device supports larger frames.

Question 12

During a new floor deployment, Contoso Health is comparing several networking concepts. Which option is accurately characterized by this statement: Logically segments a Layer 2 switch network into separate broadcast domains.

1. VLAN database
2. VLAN
3. Jumbo frames
4. SVI
5. Link aggregation

Correct answer: B

Why: Logically segments a Layer 2 switch network into separate broadcast domains. This directly satisfies the requirement: Logically segments a Layer 2 switch network into separate broadcast domains..

Option review:

A: Stores switch VLAN definitions and identifiers. However, it does not most directly satisfy the requirement in this scenario: Logically segments a Layer 2 switch network into separate broadcast domains..

B: Logically segments a Layer 2 switch network into separate broadcast domains. This directly satisfies the requirement: Logically segments a Layer 2 switch network into separate broadcast domains..

C: Use a larger-than-standard Ethernet MTU end to end where supported, often in storage/data-center networks. However, it does not most directly satisfy the requirement in this scenario: Logically segments a Layer 2 switch network into separate broadcast domains..

D: A switched virtual interface provides a Layer 3 interface associated with a VLAN on a multilayer switch. However, it does not most directly satisfy the requirement in this scenario: Logically segments a Layer 2 switch network into separate broadcast domains..

E: Bundles multiple physical links into one logical link for bandwidth and redundancy. However, it does not most directly satisfy the requirement in this scenario: Logically segments a Layer 2 switch network into separate broadcast domains..

Learning point: Use VLAN when the key requirement is to separate departments into distinct Layer 2 broadcast domains on the same switch infrastructure.

Question 13

During a service-recovery review, Litware Manufacturing is comparing several networking concepts. Which option is accurately characterized by this statement: Stores switch VLAN definitions and identifiers.

802. 802.1Q trunking
803. MTU
804. VLAN
805. VLAN database
806. SVI

Correct answer: D

Why: Stores switch VLAN definitions and identifiers. This directly satisfies the requirement: Stores switch VLAN definitions and identifiers..

Option review:

A: Tags Ethernet frames so multiple VLANs can traverse one link. However, it does not most directly satisfy the requirement in this scenario: Stores switch VLAN definitions and identifiers..

B: Defines the largest Layer 3 packet/frame payload size supported without fragmentation at an interface/path. However, it does not most directly satisfy the requirement in this scenario: Stores switch VLAN definitions and identifiers..

C: Logically segments a Layer 2 switch network into separate broadcast domains. However, it does not most directly satisfy the requirement in this scenario: Stores switch VLAN definitions and identifiers..

D: Stores switch VLAN definitions and identifiers. This directly satisfies the requirement: Stores switch VLAN definitions and identifiers..

E: A switched virtual interface provides a Layer 3 interface associated with a VLAN on a multilayer switch. However, it does not most directly satisfy the requirement in this scenario: Stores switch VLAN definitions and identifiers..

Learning point: Use VLAN database when the key requirement is to create or verify which VLAN IDs exist on a switch.

Question 14

During a branch-office rollout, Woodgrove Bank is comparing several networking concepts. Which option is accurately characterized by this statement: A switched virtual interface provides a Layer 3 interface associated with a VLAN on a multilayer switch.

1. Native VLAN
2. SVI
3. Speed/duplex configuration
4. Voice VLAN
5. Spanning Tree Protocol

Correct answer: B

Why: A switched virtual interface provides a Layer 3 interface associated with a VLAN on a multilayer switch. This directly satisfies the requirement: A switched virtual interface provides a Layer 3 interface associated with a VLAN on a multilayer switch..

Option review:

A: Carries untagged traffic on an 802.1Q trunk when native VLAN behavior is used. However, it does not most directly satisfy the requirement in this scenario: A switched virtual interface provides a Layer 3 interface associated with a VLAN on a multilayer switch..

B: A switched virtual interface provides a Layer 3 interface associated with a VLAN on a multilayer switch. This directly satisfies the requirement: A switched virtual interface provides a Layer 3 interface associated with a VLAN on a multilayer switch..

C: Matched speed and duplex settings prevent negotiation-related performance problems. However, it does not most directly satisfy the requirement in this scenario: A switched virtual interface provides a Layer 3 interface associated with a VLAN on a multilayer switch..

D: Places IP phone traffic in a dedicated VLAN, often alongside a data VLAN on the same access port. However, it does not most directly satisfy the requirement in this scenario: A switched virtual interface provides a Layer 3 interface associated with a VLAN on a multilayer switch..

E: Prevents Layer 2 loops by placing redundant switch links into controlled forwarding/blocking roles. However, it does not most directly satisfy the requirement in this scenario: A switched virtual interface provides a Layer 3 interface associated with a VLAN on a multilayer switch..

Learning point: Use SVI when the key requirement is to provide a gateway or management IP interface for a VLAN on a Layer 3 switch.

Question 15

During a campus refresh, Blue Yonder Airlines is comparing several networking concepts. Which option is accurately characterized by this statement: Carries untagged traffic on an 802.1Q trunk when native VLAN behavior is used.

1. Spanning Tree Protocol
2. VLAN database
3. VLAN
4. Native VLAN
5. Jumbo frames

Correct answer: D

Why: Carries untagged traffic on an 802.1Q trunk when native VLAN behavior is used. This directly satisfies the requirement: Carries untagged traffic on an 802.1Q trunk when native VLAN behavior is used..

Option review:

A: Prevents Layer 2 loops by placing redundant switch links into controlled forwarding/blocking roles. However, it does not most directly satisfy the requirement in this scenario: Carries untagged traffic on an 802.1Q trunk when native VLAN behavior is used..

B: Stores switch VLAN definitions and identifiers. However, it does not most directly satisfy the requirement in this scenario: Carries untagged traffic on an 802.1Q trunk when native VLAN behavior is used..

C: Logically segments a Layer 2 switch network into separate broadcast domains. However, it does not most directly satisfy the requirement in this scenario: Carries untagged traffic on an 802.1Q trunk when native VLAN behavior is used..

D: Carries untagged traffic on an 802.1Q trunk when native VLAN behavior is used. This directly satisfies the requirement: Carries untagged traffic on an 802.1Q trunk when native VLAN behavior is used..

E: Use a larger-than-standard Ethernet MTU end to end where supported, often in storage/data-center networks. However, it does not most directly satisfy the requirement in this scenario: Carries untagged traffic on an 802.1Q trunk when native VLAN behavior is used..

Learning point: Use Native VLAN when the key requirement is to identify which VLAN receives untagged frames on a trunk.

Question 16

During a data-center segment, Contoso Health is comparing several networking concepts. Which option is accurately characterized by this statement: Places IP phone traffic in a dedicated VLAN, often alongside a data VLAN on the same access port.

1. Native VLAN
2. Spanning Tree Protocol
3. MTU
4. Voice VLAN
5. Jumbo frames

Correct answer: D

Why: Places IP phone traffic in a dedicated VLAN, often alongside a data VLAN on the same access port. This directly satisfies the requirement: Places IP phone traffic in a dedicated VLAN, often alongside a data VLAN on the same access port..

Option review:

A: Carries untagged traffic on an 802.1Q trunk when native VLAN behavior is used. However, it does not most directly satisfy the requirement in this scenario: Places IP phone traffic in a dedicated VLAN, often alongside a data VLAN on the same access port..

B: Prevents Layer 2 loops by placing redundant switch links into controlled forwarding/blocking roles. However, it does not most directly satisfy the requirement in this scenario: Places IP phone traffic in a dedicated VLAN, often alongside a data VLAN on the same access port..

C: Defines the largest Layer 3 packet/frame payload size supported without fragmentation at an interface/path. However, it does not most directly satisfy the requirement in this scenario: Places IP phone traffic in a dedicated VLAN, often alongside a data VLAN on the same access port..

D: Places IP phone traffic in a dedicated VLAN, often alongside a data VLAN on the same access port. This directly satisfies the requirement: Places IP phone traffic in a dedicated VLAN, often alongside a data VLAN on the same access port..

E: Use a larger-than-standard Ethernet MTU end to end where supported, often in storage/data-center networks. However, it does not most directly satisfy the requirement in this scenario: Places IP phone traffic in a dedicated VLAN, often alongside a data VLAN on the same access port..

Learning point: Use Voice VLAN when the key requirement is to separate phone traffic from workstation data on a shared access connection.

Question 17

During a remote-site migration, Litware Manufacturing is comparing several networking concepts. Which option is accurately characterized by this statement: Tags Ethernet frames so multiple VLANs can traverse one link.

1. MTU
2. 802.1Q trunking
3. Voice VLAN
4. Jumbo frames
5. VLAN database

Correct answer: B

Why: Tags Ethernet frames so multiple VLANs can traverse one link. This directly satisfies the requirement: Tags Ethernet frames so multiple VLANs can traverse one link..

Option review:

A: Defines the largest Layer 3 packet/frame payload size supported without fragmentation at an interface/path. However, it does not most directly satisfy the requirement in this scenario: Tags Ethernet frames so multiple VLANs can traverse one link..

B: Tags Ethernet frames so multiple VLANs can traverse one link. This directly satisfies the requirement: Tags Ethernet frames so multiple VLANs can traverse one link..

C: Places IP phone traffic in a dedicated VLAN, often alongside a data VLAN on the same access port. However, it does not most directly satisfy the requirement in this scenario: Tags Ethernet frames so multiple VLANs can traverse one link..

D: Use a larger-than-standard Ethernet MTU end to end where supported, often in storage/data-center networks. However, it does not most directly satisfy the requirement in this scenario: Tags Ethernet frames so multiple VLANs can traverse one link..

E: Stores switch VLAN definitions and identifiers. However, it does not most directly satisfy the requirement in this scenario: Tags Ethernet frames so multiple VLANs can traverse one link..

Learning point: Use 802.1Q trunking when the key requirement is to carry several VLANs between switches over one physical link.

Question 18

During a operations lab, Woodgrove Bank is comparing several networking concepts. Which option is accurately characterized by this statement: Bundles multiple physical links into one logical link for bandwidth and redundancy.

1. Native VLAN
2. SVI
3. 802.1Q trunking
4. Link aggregation
5. Voice VLAN

Correct answer: D

Why: Bundles multiple physical links into one logical link for bandwidth and redundancy. This directly satisfies the requirement: Bundles multiple physical links into one logical link for bandwidth and redundancy..

Option review:

A: Carries untagged traffic on an 802.1Q trunk when native VLAN behavior is used. However, it does not most directly satisfy the requirement in this scenario: Bundles multiple physical links into one logical link for bandwidth and redundancy..

B: A switched virtual interface provides a Layer 3 interface associated with a VLAN on a multilayer switch. However, it does not most directly satisfy the requirement in this scenario: Bundles multiple physical links into one logical link for bandwidth and redundancy..

C: Tags Ethernet frames so multiple VLANs can traverse one link. However, it does not most directly satisfy the requirement in this scenario: Bundles multiple physical links into one logical link for bandwidth and redundancy..

D: Bundles multiple physical links into one logical link for bandwidth and redundancy. This directly satisfies the requirement: Bundles multiple physical links into one logical link for bandwidth and redundancy..

E: Places IP phone traffic in a dedicated VLAN, often alongside a data VLAN on the same access port. However, it does not most directly satisfy the requirement in this scenario: Bundles multiple physical links into one logical link for bandwidth and redundancy..

Learning point: Use Link aggregation when the key requirement is to combine several switch links into a single logical connection.

Question 19

During a production maintenance window, Blue Yonder Airlines is comparing several networking concepts. Which option is accurately characterized by this statement: Matched speed and duplex settings prevent negotiation-related performance problems.

1. VLAN database
2. Native VLAN
3. Speed/duplex configuration
4. Link aggregation
5. VLAN

Correct answer: C

Why: Matched speed and duplex settings prevent negotiation-related performance problems. This directly satisfies the requirement: Matched speed and duplex settings prevent negotiation-related performance problems..

Option review:

A: Stores switch VLAN definitions and identifiers. However, it does not most directly satisfy the requirement in this scenario: Matched speed and duplex settings prevent negotiation-related performance problems..

B: Carries untagged traffic on an 802.1Q trunk when native VLAN behavior is used. However, it does not most directly satisfy the requirement in this scenario: Matched speed and duplex settings prevent negotiation-related performance problems..

C: Matched speed and duplex settings prevent negotiation-related performance problems. This directly satisfies the requirement: Matched speed and duplex settings prevent negotiation-related performance problems..

D: Bundles multiple physical links into one logical link for bandwidth and redundancy. However, it does not most directly satisfy the requirement in this scenario: Matched speed and duplex settings prevent negotiation-related performance problems..

E: Logically segments a Layer 2 switch network into separate broadcast domains. However, it does not most directly satisfy the requirement in this scenario: Matched speed and duplex settings prevent negotiation-related performance problems..

Learning point: Use Speed/duplex configuration when the key requirement is to ensure both ends of an Ethernet link agree on speed and duplex operation.

Question 20

During a new floor deployment, Contoso Health is comparing several networking concepts. Which option is accurately characterized by this statement: Prevents Layer 2 loops by placing redundant switch links into controlled forwarding/blocking roles.

1. Link aggregation
2. MTU
3. Speed/duplex configuration
4. Spanning Tree Protocol
5. 802.1Q trunking

Correct answer: D

Why: Prevents Layer 2 loops by placing redundant switch links into controlled forwarding/blocking roles. This directly satisfies the requirement: Prevents Layer 2 loops by placing redundant switch links into controlled forwarding/blocking roles..

Option review:

A: Bundles multiple physical links into one logical link for bandwidth and redundancy. However, it does not most directly satisfy the requirement in this scenario: Prevents Layer 2 loops by placing redundant switch links into controlled forwarding/blocking roles..

B: Defines the largest Layer 3 packet/frame payload size supported without fragmentation at an interface/path. However, it does not most directly satisfy the requirement in this scenario: Prevents Layer 2 loops by placing redundant switch links into controlled forwarding/blocking roles..

C: Matched speed and duplex settings prevent negotiation-related performance problems. However, it does not most directly satisfy the requirement in this scenario: Prevents Layer 2 loops by placing redundant switch links into controlled forwarding/blocking roles..

D: Prevents Layer 2 loops by placing redundant switch links into controlled forwarding/blocking roles. This directly satisfies the requirement: Prevents Layer 2 loops by placing redundant switch links into controlled forwarding/blocking roles..

E: Tags Ethernet frames so multiple VLANs can traverse one link. However, it does not most directly satisfy the requirement in this scenario: Prevents Layer 2 loops by placing redundant switch links into controlled forwarding/blocking roles..

Learning point: Use Spanning Tree Protocol when the key requirement is to retain redundant switch links without creating a broadcast loop.

Question 21

During a service-recovery review, Litware Manufacturing is comparing several networking concepts. Which option is accurately characterized by this statement: Defines the largest Layer 3 packet/frame payload size supported without fragmentation at an interface/path.

802. 802.1Q trunking
803. Jumbo frames
804. VLAN database
805. MTU
806. Spanning Tree Protocol

Correct answer: D

Why: Defines the largest Layer 3 packet/frame payload size supported without fragmentation at an interface/path. This directly satisfies the requirement: Defines the largest Layer 3 packet/frame payload size supported without fragmentation at an interface/path..

Option review:

A: Tags Ethernet frames so multiple VLANs can traverse one link. However, it does not most directly satisfy the requirement in this scenario: Defines the largest Layer 3 packet/frame payload size supported without fragmentation at an interface/path..

B: Use a larger-than-standard Ethernet MTU end to end where supported, often in storage/data-center networks. However, it does not most directly satisfy the requirement in this scenario: Defines the largest Layer 3 packet/frame payload size supported without fragmentation at an interface/path..

C: Stores switch VLAN definitions and identifiers. However, it does not most directly satisfy the requirement in this scenario: Defines the largest Layer 3 packet/frame payload size supported without fragmentation at an interface/path..

D: Defines the largest Layer 3 packet/frame payload size supported without fragmentation at an interface/path. This directly satisfies the requirement: Defines the largest Layer 3 packet/frame payload size supported without fragmentation at an interface/path..

E: Prevents Layer 2 loops by placing redundant switch links into controlled forwarding/blocking roles. However, it does not most directly satisfy the requirement in this scenario: Defines the largest Layer 3 packet/frame payload size supported without fragmentation at an interface/path..

Learning point: Use MTU when the key requirement is to control the maximum packet/frame size accepted on a link.

Question 22

During a branch-office rollout, Woodgrove Bank is comparing several networking concepts. Which option is accurately characterized by this statement: Use a larger-than-standard Ethernet MTU end to end where supported, often in storage/data-center networks.

1. Jumbo frames
2. Speed/duplex configuration
3. Link aggregation
4. Spanning Tree Protocol
5. MTU

Correct answer: A

Why: Use a larger-than-standard Ethernet MTU end to end where supported, often in storage/data-center networks. This directly satisfies the requirement: Use a larger-than-standard Ethernet MTU end to end where supported, often in storage/data-center networks..

Option review:

A: Use a larger-than-standard Ethernet MTU end to end where supported, often in storage/data-center networks. This directly satisfies the requirement: Use a larger-than-standard Ethernet MTU end to end where supported, often in storage/data-center networks..

B: Matched speed and duplex settings prevent negotiation-related performance problems. However, it does not most directly satisfy the requirement in this scenario: Use a larger-than-standard Ethernet MTU end to end where supported, often in storage/data-center networks..

C: Bundles multiple physical links into one logical link for bandwidth and redundancy. However, it does not most directly satisfy the requirement in this scenario: Use a larger-than-standard Ethernet MTU end to end where supported, often in storage/data-center networks..

D: Prevents Layer 2 loops by placing redundant switch links into controlled forwarding/blocking roles. However, it does not most directly satisfy the requirement in this scenario: Use a larger-than-standard Ethernet MTU end to end where supported, often in storage/data-center networks..

E: Defines the largest Layer 3 packet/frame payload size supported without fragmentation at an interface/path. However, it does not most directly satisfy the requirement in this scenario: Use a larger-than-standard Ethernet MTU end to end where supported, often in storage/data-center networks..

Learning point: Use Jumbo frames when the key requirement is to reduce per-packet overhead for a high-throughput network where every device supports larger frames.

Question 23

A field technician at Blue Yonder Airlines is troubleshooting a operations lab. The team has isolated the key need as follows: separate departments into distinct Layer 2 broadcast domains on the same switch infrastructure. Which concept should be applied or investigated first?

1. SVI
2. Voice VLAN
3. Jumbo frames
4. Speed/duplex configuration
5. VLAN

Correct answer: E

Why: Logically segments a Layer 2 switch network into separate broadcast domains. This directly satisfies the requirement: separate departments into distinct Layer 2 broadcast domains on the same switch infrastructure.

Option review:

A: A switched virtual interface provides a Layer 3 interface associated with a VLAN on a multilayer switch. However, it does not most directly satisfy the requirement in this scenario: separate departments into distinct Layer 2 broadcast domains on the same switch infrastructure.

B: Places IP phone traffic in a dedicated VLAN, often alongside a data VLAN on the same access port. However, it does not most directly satisfy the requirement in this scenario: separate departments into distinct Layer 2 broadcast domains on the same switch infrastructure.

C: Use a larger-than-standard Ethernet MTU end to end where supported, often in storage/data-center networks. However, it does not most directly satisfy the requirement in this scenario: separate departments into distinct Layer 2 broadcast domains on the same switch infrastructure.

D: Matched speed and duplex settings prevent negotiation-related performance problems. However, it does not most directly satisfy the requirement in this scenario: separate departments into distinct Layer 2 broadcast domains on the same switch infrastructure.

E: Logically segments a Layer 2 switch network into separate broadcast domains. This directly satisfies the requirement: separate departments into distinct Layer 2 broadcast domains on the same switch infrastructure.

Learning point: Use VLAN when the key requirement is to separate departments into distinct Layer 2 broadcast domains on the same switch infrastructure.

Question 24

A network support specialist at Contoso Health is troubleshooting a production maintenance window. The team has isolated the key need as follows: create or verify which VLAN IDs exist on a switch. Which concept should be applied or investigated first?

1. VLAN database
2. Speed/duplex configuration
3. Native VLAN
4. VLAN
5. Voice VLAN

Correct answer: A

Why: Stores switch VLAN definitions and identifiers. This directly satisfies the requirement: create or verify which VLAN IDs exist on a switch.

Option review:

A: Stores switch VLAN definitions and identifiers. This directly satisfies the requirement: create or verify which VLAN IDs exist on a switch.

B: Matched speed and duplex settings prevent negotiation-related performance problems. However, it does not most directly satisfy the requirement in this scenario: create or verify which VLAN IDs exist on a switch.

C: Carries untagged traffic on an 802.1Q trunk when native VLAN behavior is used. However, it does not most directly satisfy the requirement in this scenario: create or verify which VLAN IDs exist on a switch.

D: Logically segments a Layer 2 switch network into separate broadcast domains. However, it does not most directly satisfy the requirement in this scenario: create or verify which VLAN IDs exist on a switch.

E: Places IP phone traffic in a dedicated VLAN, often alongside a data VLAN on the same access port. However, it does not most directly satisfy the requirement in this scenario: create or verify which VLAN IDs exist on a switch.

Learning point: Use VLAN database when the key requirement is to create or verify which VLAN IDs exist on a switch.

Question 25

A systems administrator at Litware Manufacturing is troubleshooting a new floor deployment. The team has isolated the key need as follows: provide a gateway or management IP interface for a VLAN on a Layer 3 switch. Which concept should be applied or investigated first?

1. Speed/duplex configuration
2. MTU
3. Spanning Tree Protocol
4. SVI
5. VLAN

Correct answer: D

Why: A switched virtual interface provides a Layer 3 interface associated with a VLAN on a multilayer switch. This directly satisfies the requirement: provide a gateway or management IP interface for a VLAN on a Layer 3 switch.

Option review:

A: Matched speed and duplex settings prevent negotiation-related performance problems. However, it does not most directly satisfy the requirement in this scenario: provide a gateway or management IP interface for a VLAN on a Layer 3 switch.

B: Defines the largest Layer 3 packet/frame payload size supported without fragmentation at an interface/path. However, it does not most directly satisfy the requirement in this scenario: provide a gateway or management IP interface for a VLAN on a Layer 3 switch.

C: Prevents Layer 2 loops by placing redundant switch links into controlled forwarding/blocking roles. However, it does not most directly satisfy the requirement in this scenario: provide a gateway or management IP interface for a VLAN on a Layer 3 switch.

D: A switched virtual interface provides a Layer 3 interface associated with a VLAN on a multilayer switch. This directly satisfies the requirement: provide a gateway or management IP interface for a VLAN on a Layer 3 switch.

E: Logically segments a Layer 2 switch network into separate broadcast domains. However, it does not most directly satisfy the requirement in this scenario: provide a gateway or management IP interface for a VLAN on a Layer 3 switch.

Learning point: Use SVI when the key requirement is to provide a gateway or management IP interface for a VLAN on a Layer 3 switch.