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HP HPE7-A08 Practice Test 9

Question 80

After a cutover, stakeholders disagree about what counts as a passing latency test. What should have been defined?

  1. Acceptance and validation criteria
  2. Security and regulatory requirements
  3. Traffic and application inventory
  4. Failure-domain analysis

Explanation

Correct Answer

A:

Acceptance thresholds need agreement before changes. Objective pass/fail tests define how to confirm the installed network meets requirements.

Incorrect Answers

B:

Identity, encryption, segmentation and audit obligations must shape the wired design. But this does not address the case requirement to establish measurable success criteria in advance.

C:

Inventorying traffic flows and applications reveals bandwidth, latency, segmentation and critical dependencies. But this does not address the case requirement to establish measurable success criteria in advance.

D:

Documenting single points of failure and required recovery behavior guides redundancy choices. But this does not address the case requirement to establish measurable success criteria in advance.

Question 81

A branch will handle payment card traffic and ordinary guests. Which input belongs in the network implementation plan?

  1. Security and regulatory requirements
  2. Failure-domain analysis
  3. Operational ownership and change windows
  4. Port and PoE capacity inventory

Explanation

Correct Answer

A:

Security obligations define segmentation and access boundaries. Identity, encryption, segmentation and audit obligations must shape the wired design.

Incorrect Answers

B:

Documenting single points of failure and required recovery behavior guides redundancy choices. But this does not address the case requirement to design around required compliance controls.

C:

Roles, maintenance windows and escalation routes reduce rollout risk. But this does not address the case requirement to design around required compliance controls.

D:

Counting endpoints and power demands identifies the physical switch resources required. But this does not address the case requirement to design around required compliance controls.

Question 82

A department expects 110 IPv4 endpoints and proposes a /26 subnet. Which planning calculation reveals inadequate host space?

  1. VLAN-to-subnet mapping
  2. Subnet capacity calculation
  3. DHCP scope and relay design
  4. Address overlap prevention

Explanation

Correct Answer

B:

A /26 has at most 62 conventional usable IPv4 hosts. IP subnet prefix lengths determine usable host-address capacity with standard IPv4 network and broadcast reservations.

Incorrect Answers

A:

A VLAN typically maps to a defined broadcast segment and routed IP subnet at its gateway. But this does not address the case requirement to choose a prefix with enough usable addresses.

C:

Client address pools and relay destinations are required when the DHCP server is elsewhere. But this does not address the case requirement to choose a prefix with enough usable addresses.

D:

Nonoverlapping network allocations avoid ambiguous forwarding and renumbering problems. But this does not address the case requirement to choose a prefix with enough usable addresses.

Question 83

Voice and data devices must use different broadcast scopes and gateways. Which worksheet entry links Layer 2 to Layer 3?

  1. VLAN-to-subnet mapping
  2. Default gateway placement
  3. IP summarization boundary
  4. Address overlap prevention

Explanation

Correct Answer

A:

VLAN-to-subnet associations make segmentation and routing explicit. A VLAN typically maps to a defined broadcast segment and routed IP subnet at its gateway.

Incorrect Answers

B:

The endpoint must point to a reachable routed SVI or gateway address for off-subnet traffic. But this does not address the case requirement to pair each VLAN with its planned IP network.

C:

Routing summarization can reduce advertised routes if blocks are contiguous and topology supports it. But this does not address the case requirement to pair each VLAN with its planned IP network.

D:

Nonoverlapping network allocations avoid ambiguous forwarding and renumbering problems. But this does not address the case requirement to pair each VLAN with its planned IP network.

Question 84

A workstation can reach its local printer but no remote subnet; its gateway field is blank. Which address must be supplied?

  1. Address overlap prevention
  2. DHCP scope and relay design
  3. VLAN-to-subnet mapping
  4. Default gateway placement

Explanation

Correct Answer

D:

A correct default gateway forwards off-subnet packets. The endpoint must point to a reachable routed SVI or gateway address for off-subnet traffic.

Incorrect Answers

A:

Nonoverlapping network allocations avoid ambiguous forwarding and renumbering problems. But this does not address the case requirement to route client traffic beyond the local VLAN.

B:

Client address pools and relay destinations are required when the DHCP server is elsewhere. But this does not address the case requirement to route client traffic beyond the local VLAN.

C:

A VLAN typically maps to a defined broadcast segment and routed IP subnet at its gateway. But this does not address the case requirement to route client traffic beyond the local VLAN.

Question 85

An access VLAN has no local DHCP server but central address assignment is required. Which design element is necessary?

  1. IP summarization boundary
  2. DHCP scope and relay design
  3. Default gateway placement
  4. VLAN-to-subnet mapping

Explanation

Correct Answer

B:

A relay directs client broadcasts to the remote DHCP service. Client address pools and relay destinations are required when the DHCP server is elsewhere.

Incorrect Answers

A:

Routing summarization can reduce advertised routes if blocks are contiguous and topology supports it. But this does not address the case requirement to provide DHCP service across routed boundaries.

C:

The endpoint must point to a reachable routed SVI or gateway address for off-subnet traffic. But this does not address the case requirement to provide DHCP service across routed boundaries.

D:

A VLAN typically maps to a defined broadcast segment and routed IP subnet at its gateway. But this does not address the case requirement to provide DHCP service across routed boundaries.

Question 86

Two sites allocate the same 10.20.30.0/24 for separate internal segments and later require a routed link. What design defect should be prevented?

  1. Address overlap prevention
  2. VLAN-to-subnet mapping
  3. Default gateway placement
  4. DHCP scope and relay design

Explanation

Correct Answer

A:

Overlapping networks create routing ambiguity. Nonoverlapping network allocations avoid ambiguous forwarding and renumbering problems.

Incorrect Answers

B:

A VLAN typically maps to a defined broadcast segment and routed IP subnet at its gateway. But this does not address the case requirement to use unique IP networks when sites must interconnect.

C:

The endpoint must point to a reachable routed SVI or gateway address for off-subnet traffic. But this does not address the case requirement to use unique IP networks when sites must interconnect.

D:

Client address pools and relay destinations are required when the DHCP server is elsewhere. But this does not address the case requirement to use unique IP networks when sites must interconnect.

Question 87

A campus has sixteen sequential /24 ranges and wants compact upstream advertisements where topology permits. What should be evaluated?

  1. VLAN-to-subnet mapping
  2. IP summarization boundary
  3. DHCP scope and relay design
  4. Default gateway placement

Explanation

Correct Answer

B:

Summarization can aggregate contiguous prefixes into fewer advertisements. Routing summarization can reduce advertised routes if blocks are contiguous and topology supports it.

Incorrect Answers

A:

A VLAN typically maps to a defined broadcast segment and routed IP subnet at its gateway. But this does not address the case requirement to reduce redundant route announcements.

C:

Client address pools and relay destinations are required when the DHCP server is elsewhere. But this does not address the case requirement to reduce redundant route announcements.

D:

The endpoint must point to a reachable routed SVI or gateway address for off-subnet traffic. But this does not address the case requirement to reduce redundant route announcements.

Question 88

A planned /27 subnet must host 47 printers. Which check shows the proposal is undersized?

  1. DHCP scope and relay design
  2. IP summarization boundary
  3. Subnet capacity calculation
  4. Default gateway placement

Explanation

Correct Answer

C:

A /27 only provides 30 normal usable IPv4 addresses. IP subnet prefix lengths determine usable host-address capacity with standard IPv4 network and broadcast reservations.

Incorrect Answers

A:

Client address pools and relay destinations are required when the DHCP server is elsewhere. But this does not address the case requirement to calculate endpoint capacity before allocating a prefix.

B:

Routing summarization can reduce advertised routes if blocks are contiguous and topology supports it. But this does not address the case requirement to calculate endpoint capacity before allocating a prefix.

D:

The endpoint must point to a reachable routed SVI or gateway address for off-subnet traffic. But this does not address the case requirement to calculate endpoint capacity before allocating a prefix.

Question 89

A new branch SVI routes fine, but DHCP Discover messages never reach the central server. What part of the plan should be checked?

  1. IP summarization boundary
  2. VLAN-to-subnet mapping
  3. Default gateway placement
  4. DHCP scope and relay design

Explanation

Correct Answer

D:

DHCP relay forwarding is necessary across routing boundaries. Client address pools and relay destinations are required when the DHCP server is elsewhere.

Incorrect Answers

A:

Routing summarization can reduce advertised routes if blocks are contiguous and topology supports it. But this does not address the case requirement to deliver address requests to a remote server.

B:

A VLAN typically maps to a defined broadcast segment and routed IP subnet at its gateway. But this does not address the case requirement to deliver address requests to a remote server.

C:

The endpoint must point to a reachable routed SVI or gateway address for off-subnet traffic. But this does not address the case requirement to deliver address requests to a remote server.

Question 90

A merger adds a site using the same CIDR block as headquarters. Which planning task should happen before routing is enabled?

  1. Default gateway placement
  2. Address overlap prevention
  3. IP summarization boundary
  4. DHCP scope and relay design

Explanation

Correct Answer

B:

Unique address planning or controlled translation is needed. Nonoverlapping network allocations avoid ambiguous forwarding and renumbering problems.

Incorrect Answers

A:

The endpoint must point to a reachable routed SVI or gateway address for off-subnet traffic. But this does not address the case requirement to avoid overlapping private prefixes across sites.

C:

Routing summarization can reduce advertised routes if blocks are contiguous and topology supports it. But this does not address the case requirement to avoid overlapping private prefixes across sites.

D:

Client address pools and relay destinations are required when the DHCP server is elsewhere. But this does not address the case requirement to avoid overlapping private prefixes across sites.

HPE Network Switching Professional (HPE7-A08) Practice Tests

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