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HP HPE7-A08 Bundle

Exam Code: HPE7-A08

Exam Name HPE Network Switching Professional

Certification Provider: HP

Corresponding Certification: HPE Aruba Networking Certified Professional - Switching

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HP HPE7-A08 Practice Test 22

Question 210

The HPE AOS-CX switching case is: A VoIP endpoint reboots when other high-power devices turn on because the switch power budget is exhausted. Which TWO choices together provide the targeted remedy and independent validation? (Select TWO.)

  1. Connect supported VSF member links or VSX ISL and separate keepalive paths exactly as designed, with documented identifiers and port roles.
  2. Optical diagnostics and interface counters meet expected thresholds over the validated cable path with supported optics.
  3. Configure and validate tagged VLAN membership across each uplink and consistent native VLAN treatment where required by the topology.
  4. Validate port mode, negotiated speed, duplex, cabling and budgeted PoE on actual endpoint-facing interfaces prior to service handoff.
  5. Representative endpoints show the expected electrical link, negotiated speed, power draw and error-free bidirectional traffic.

Explanation

Correct Answers

D:

The targeted correction for A VoIP endpoint reboots when other high-power devices turn on because the switch power budget is exhausted is: Validate port mode, negotiated speed, duplex, cabling and budgeted PoE on actual endpoint-facing interfaces prior to service handoff. It reduces the risk that a link light may hide wrong negotiation, power shortfall or incompatible copper medium, producing sporadic endpoint loss.

E:

A separate operational validation for A VoIP endpoint reboots when other high-power devices turn on because the switch power budget is exhausted is: Representative endpoints show the expected electrical link, negotiated speed, power draw and error-free bidirectional traffic. It proves intended behavior instead of accepting configuration presence alone.

Incorrect Answers

A:

This alternative concerns stack and vsx cable topology physical setup; its associated risk is: Mis-cabling a keepalive or interswitch link can split a high-availability domain or create unexpected forwarding loss. The observed case A VoIP endpoint reboots when other high-power devices turn on because the switch power budget is exhausted requires the more specific physical ethernet and poe interface readiness control. The targeted action is: Validate port mode, negotiated speed, duplex, cabling and budgeted PoE on actual endpoint-facing interfaces prior to service handoff.

B:

This alternative concerns rack transceiver compatibility and link budget; its associated risk is: Unsupported optic combinations or bad attenuation can cause intermittent errors even when the link initially reports carrier. The observed case A VoIP endpoint reboots when other high-power devices turn on because the switch power budget is exhausted requires the more specific physical ethernet and poe interface readiness control. The targeted action is: Validate port mode, negotiated speed, duplex, cabling and budgeted PoE on actual endpoint-facing interfaces prior to service handoff.

C:

This alternative concerns vlan trunk tagging and permitted vlan filters; its associated risk is: A missing tagged VLAN on one hop silently isolates clients, while unintended VLAN allowance bridges security domains. The observed case A VoIP endpoint reboots when other high-power devices turn on because the switch power budget is exhausted requires the more specific physical ethernet and poe interface readiness control. The targeted action is: Validate port mode, negotiated speed, duplex, cabling and budgeted PoE on actual endpoint-facing interfaces prior to service handoff.

Question 211

An HPE Aruba Networking engineer observes: An AP runs at reduced uplink speed because of damaged copper pairs despite an apparently active switchport. The corrective solution must keep intended connectivity, segmentation, and operational resilience. What is the most defensible operational action before closing the network change?

  1. Set a consistent MSTP region name, revision and VLAN-to-instance mapping and deliberately place the root where the topology requires.
  2. Connect supported VSF member links or VSX ISL and separate keepalive paths exactly as designed, with documented identifiers and port roles.
  3. Confirm port optics, fiber or copper type, distance, power and compatible transceiver part numbers before physical installation.
  4. Validate port mode, negotiated speed, duplex, cabling and budgeted PoE on actual endpoint-facing interfaces prior to service handoff.

Explanation

Correct Answer

D:

The decisive observed condition is: An AP runs at reduced uplink speed because of damaged copper pairs despite an apparently active switchport. The appropriate switching action is: Validate port mode, negotiated speed, duplex, cabling and budgeted PoE on actual endpoint-facing interfaces prior to service handoff. It addresses the risk that a link light may hide wrong negotiation, power shortfall or incompatible copper medium, producing sporadic endpoint loss. Confirm with: Representative endpoints show the expected electrical link, negotiated speed, power draw and error-free bidirectional traffic.

Incorrect Answers

A:

This alternative concerns mstp configuration and loop control; its associated risk is: A mismatched MSTP region or unintended root can block critical trunks or increase convergence disruption. The observed case An AP runs at reduced uplink speed because of damaged copper pairs despite an apparently active switchport requires the more specific physical ethernet and poe interface readiness control. The targeted action is: Validate port mode, negotiated speed, duplex, cabling and budgeted PoE on actual endpoint-facing interfaces prior to service handoff.

B:

This alternative concerns stack and vsx cable topology physical setup; its associated risk is: Mis-cabling a keepalive or interswitch link can split a high-availability domain or create unexpected forwarding loss. The observed case An AP runs at reduced uplink speed because of damaged copper pairs despite an apparently active switchport requires the more specific physical ethernet and poe interface readiness control. The targeted action is: Validate port mode, negotiated speed, duplex, cabling and budgeted PoE on actual endpoint-facing interfaces prior to service handoff.

C:

This alternative concerns rack transceiver compatibility and link budget; its associated risk is: Unsupported optic combinations or bad attenuation can cause intermittent errors even when the link initially reports carrier. The observed case An AP runs at reduced uplink speed because of damaged copper pairs despite an apparently active switchport requires the more specific physical ethernet and poe interface readiness control. The targeted action is: Validate port mode, negotiated speed, duplex, cabling and budgeted PoE on actual endpoint-facing interfaces prior to service handoff.

Question 212

The switch operations team reports: An AP runs at reduced uplink speed because of damaged copper pairs despite an apparently active switchport. Which consequence explains why the described network state is unsuitable?

  1. Unsupported optic combinations or bad attenuation can cause intermittent errors even when the link initially reports carrier.
  2. A mismatched MSTP region or unintended root can block critical trunks or increase convergence disruption.
  3. A link light may hide wrong negotiation, power shortfall or incompatible copper medium, producing sporadic endpoint loss.
  4. Mis-cabling a keepalive or interswitch link can split a high-availability domain or create unexpected forwarding loss.

Explanation

Correct Answer

C:

The direct operational failure mode is: A link light may hide wrong negotiation, power shortfall or incompatible copper medium, producing sporadic endpoint loss. It applies to the condition An AP runs at reduced uplink speed because of damaged copper pairs despite an apparently active switchport. The suitable corrective action is: Validate port mode, negotiated speed, duplex, cabling and budgeted PoE on actual endpoint-facing interfaces prior to service handoff. Independently validate using: Representative endpoints show the expected electrical link, negotiated speed, power draw and error-free bidirectional traffic.

Incorrect Answers

A:

This alternative concerns rack transceiver compatibility and link budget; its associated risk is: Unsupported optic combinations or bad attenuation can cause intermittent errors even when the link initially reports carrier. The observed case An AP runs at reduced uplink speed because of damaged copper pairs despite an apparently active switchport requires the more specific physical ethernet and poe interface readiness control. The targeted action is: Validate port mode, negotiated speed, duplex, cabling and budgeted PoE on actual endpoint-facing interfaces prior to service handoff.

B:

This alternative concerns mstp configuration and loop control; its associated risk is: A mismatched MSTP region or unintended root can block critical trunks or increase convergence disruption. The observed case An AP runs at reduced uplink speed because of damaged copper pairs despite an apparently active switchport requires the more specific physical ethernet and poe interface readiness control. The targeted action is: Validate port mode, negotiated speed, duplex, cabling and budgeted PoE on actual endpoint-facing interfaces prior to service handoff.

D:

This alternative concerns stack and vsx cable topology physical setup; its associated risk is: Mis-cabling a keepalive or interswitch link can split a high-availability domain or create unexpected forwarding loss. The observed case An AP runs at reduced uplink speed because of damaged copper pairs despite an apparently active switchport requires the more specific physical ethernet and poe interface readiness control. The targeted action is: Validate port mode, negotiated speed, duplex, cabling and budgeted PoE on actual endpoint-facing interfaces prior to service handoff.

Question 213

An HPE Aruba Networking engineer observes: A lab technician forces an incompatible speed on one end and the partner stays down. The corrective solution must keep intended connectivity, segmentation, and operational resilience. Which implementation or troubleshooting step directly resolves the specific network issue?

  1. Apply supported classification and DSCP or CoS trust policies at appropriate access boundaries instead of trusting every endpoint marking.
  2. Confirm port optics, fiber or copper type, distance, power and compatible transceiver part numbers before physical installation.
  3. Validate port mode, negotiated speed, duplex, cabling and budgeted PoE on actual endpoint-facing interfaces prior to service handoff.
  4. Connect supported VSF member links or VSX ISL and separate keepalive paths exactly as designed, with documented identifiers and port roles.

Explanation

Correct Answer

C:

The decisive observed condition is: A lab technician forces an incompatible speed on one end and the partner stays down. The appropriate switching action is: Validate port mode, negotiated speed, duplex, cabling and budgeted PoE on actual endpoint-facing interfaces prior to service handoff. It addresses the risk that a link light may hide wrong negotiation, power shortfall or incompatible copper medium, producing sporadic endpoint loss. Confirm with: Representative endpoints show the expected electrical link, negotiated speed, power draw and error-free bidirectional traffic.

Incorrect Answers

A:

This alternative concerns dscp and cos classification trust boundaries; its associated risk is: Untrusted hosts can mark bulk flows as high priority and starve real-time applications during congestion. The observed case A lab technician forces an incompatible speed on one end and the partner stays down requires the more specific physical ethernet and poe interface readiness control. The targeted action is: Validate port mode, negotiated speed, duplex, cabling and budgeted PoE on actual endpoint-facing interfaces prior to service handoff.

B:

This alternative concerns rack transceiver compatibility and link budget; its associated risk is: Unsupported optic combinations or bad attenuation can cause intermittent errors even when the link initially reports carrier. The observed case A lab technician forces an incompatible speed on one end and the partner stays down requires the more specific physical ethernet and poe interface readiness control. The targeted action is: Validate port mode, negotiated speed, duplex, cabling and budgeted PoE on actual endpoint-facing interfaces prior to service handoff.

D:

This alternative concerns stack and vsx cable topology physical setup; its associated risk is: Mis-cabling a keepalive or interswitch link can split a high-availability domain or create unexpected forwarding loss. The observed case A lab technician forces an incompatible speed on one end and the partner stays down requires the more specific physical ethernet and poe interface readiness control. The targeted action is: Validate port mode, negotiated speed, duplex, cabling and budgeted PoE on actual endpoint-facing interfaces prior to service handoff.

Question 214

An engineer investigates: A lab technician forces an incompatible speed on one end and the partner stays down. What network observation should the team require before approving completion?

  1. Traffic capture and queue statistics demonstrate intended priority treatment for voice while untrusted markings are normalized.
  2. Physical maps and operational status show expected VSF member order or VSX peer roles, ISL and keepalive during fault testing.
  3. Representative endpoints show the expected electrical link, negotiated speed, power draw and error-free bidirectional traffic.
  4. Optical diagnostics and interface counters meet expected thresholds over the validated cable path with supported optics.

Explanation

Correct Answer

C:

The independent acceptance evidence for A lab technician forces an incompatible speed on one end and the partner stays down is: Representative endpoints show the expected electrical link, negotiated speed, power draw and error-free bidirectional traffic. It tests whether the team has actually implemented: Validate port mode, negotiated speed, duplex, cabling and budgeted PoE on actual endpoint-facing interfaces prior to service handoff. An enabled interface or saved configuration by itself is not evidence of complete service recovery.

Incorrect Answers

A:

This alternative concerns dscp and cos classification trust boundaries; its associated risk is: Untrusted hosts can mark bulk flows as high priority and starve real-time applications during congestion. The observed case A lab technician forces an incompatible speed on one end and the partner stays down requires the more specific physical ethernet and poe interface readiness control. The targeted action is: Validate port mode, negotiated speed, duplex, cabling and budgeted PoE on actual endpoint-facing interfaces prior to service handoff.

B:

This alternative concerns stack and vsx cable topology physical setup; its associated risk is: Mis-cabling a keepalive or interswitch link can split a high-availability domain or create unexpected forwarding loss. The observed case A lab technician forces an incompatible speed on one end and the partner stays down requires the more specific physical ethernet and poe interface readiness control. The targeted action is: Validate port mode, negotiated speed, duplex, cabling and budgeted PoE on actual endpoint-facing interfaces prior to service handoff.

D:

This alternative concerns rack transceiver compatibility and link budget; its associated risk is: Unsupported optic combinations or bad attenuation can cause intermittent errors even when the link initially reports carrier. The observed case A lab technician forces an incompatible speed on one end and the partner stays down requires the more specific physical ethernet and poe interface readiness control. The targeted action is: Validate port mode, negotiated speed, duplex, cabling and budgeted PoE on actual endpoint-facing interfaces prior to service handoff.

Question 215

An HPE Aruba Networking engineer observes: A connected security camera powers up but packets drop under load due to interface CRC errors. The corrective solution must keep intended connectivity, segmentation, and operational resilience. Which response best satisfies the technical requirement without disrupting unrelated traffic?

  1. Form LAG interfaces with consistent LACP settings, eligible member speeds and partner wiring, then evaluate per-flow hashing limitations.
  2. Confirm port optics, fiber or copper type, distance, power and compatible transceiver part numbers before physical installation.
  3. Connect supported VSF member links or VSX ISL and separate keepalive paths exactly as designed, with documented identifiers and port roles.
  4. Validate port mode, negotiated speed, duplex, cabling and budgeted PoE on actual endpoint-facing interfaces prior to service handoff.

Explanation

Correct Answer

D:

The decisive observed condition is: A connected security camera powers up but packets drop under load due to interface CRC errors. The appropriate switching action is: Validate port mode, negotiated speed, duplex, cabling and budgeted PoE on actual endpoint-facing interfaces prior to service handoff. It addresses the risk that a link light may hide wrong negotiation, power shortfall or incompatible copper medium, producing sporadic endpoint loss. Confirm with: Representative endpoints show the expected electrical link, negotiated speed, power draw and error-free bidirectional traffic.

Incorrect Answers

A:

This alternative concerns lacp member selection and load distribution; its associated risk is: A partially formed aggregation can strand traffic or produce surprising throughput because a single flow usually hashes to one member. The observed case A connected security camera powers up but packets drop under load due to interface CRC errors requires the more specific physical ethernet and poe interface readiness control. The targeted action is: Validate port mode, negotiated speed, duplex, cabling and budgeted PoE on actual endpoint-facing interfaces prior to service handoff.

B:

This alternative concerns rack transceiver compatibility and link budget; its associated risk is: Unsupported optic combinations or bad attenuation can cause intermittent errors even when the link initially reports carrier. The observed case A connected security camera powers up but packets drop under load due to interface CRC errors requires the more specific physical ethernet and poe interface readiness control. The targeted action is: Validate port mode, negotiated speed, duplex, cabling and budgeted PoE on actual endpoint-facing interfaces prior to service handoff.

C:

This alternative concerns stack and vsx cable topology physical setup; its associated risk is: Mis-cabling a keepalive or interswitch link can split a high-availability domain or create unexpected forwarding loss. The observed case A connected security camera powers up but packets drop under load due to interface CRC errors requires the more specific physical ethernet and poe interface readiness control. The targeted action is: Validate port mode, negotiated speed, duplex, cabling and budgeted PoE on actual endpoint-facing interfaces prior to service handoff.

Question 216

The switch operations team reports: A connected security camera powers up but packets drop under load due to interface CRC errors. Which consequence explains why the described network state is unsuitable?

  1. A partially formed aggregation can strand traffic or produce surprising throughput because a single flow usually hashes to one member.
  2. A link light may hide wrong negotiation, power shortfall or incompatible copper medium, producing sporadic endpoint loss.
  3. Mis-cabling a keepalive or interswitch link can split a high-availability domain or create unexpected forwarding loss.
  4. Unsupported optic combinations or bad attenuation can cause intermittent errors even when the link initially reports carrier.

Explanation

Correct Answer

B:

The direct operational failure mode is: A link light may hide wrong negotiation, power shortfall or incompatible copper medium, producing sporadic endpoint loss. It applies to the condition A connected security camera powers up but packets drop under load due to interface CRC errors. The suitable corrective action is: Validate port mode, negotiated speed, duplex, cabling and budgeted PoE on actual endpoint-facing interfaces prior to service handoff. Independently validate using: Representative endpoints show the expected electrical link, negotiated speed, power draw and error-free bidirectional traffic.

Incorrect Answers

A:

This alternative concerns lacp member selection and load distribution; its associated risk is: A partially formed aggregation can strand traffic or produce surprising throughput because a single flow usually hashes to one member. The observed case A connected security camera powers up but packets drop under load due to interface CRC errors requires the more specific physical ethernet and poe interface readiness control. The targeted action is: Validate port mode, negotiated speed, duplex, cabling and budgeted PoE on actual endpoint-facing interfaces prior to service handoff.

C:

This alternative concerns stack and vsx cable topology physical setup; its associated risk is: Mis-cabling a keepalive or interswitch link can split a high-availability domain or create unexpected forwarding loss. The observed case A connected security camera powers up but packets drop under load due to interface CRC errors requires the more specific physical ethernet and poe interface readiness control. The targeted action is: Validate port mode, negotiated speed, duplex, cabling and budgeted PoE on actual endpoint-facing interfaces prior to service handoff.

D:

This alternative concerns rack transceiver compatibility and link budget; its associated risk is: Unsupported optic combinations or bad attenuation can cause intermittent errors even when the link initially reports carrier. The observed case A connected security camera powers up but packets drop under load due to interface CRC errors requires the more specific physical ethernet and poe interface readiness control. The targeted action is: Validate port mode, negotiated speed, duplex, cabling and budgeted PoE on actual endpoint-facing interfaces prior to service handoff.

Question 217

An HPE Aruba Networking engineer observes: A kiosk plugged into an access port obtains a visitor subnet rather than the production device subnet. The corrective solution must keep intended connectivity, segmentation, and operational resilience. Which change best addresses the observed switching requirement?

  1. Assign user ports to the intended access VLAN and verify that untagged frames reach the proper broadcast domain.
  2. Configure and validate tagged VLAN membership across each uplink and consistent native VLAN treatment where required by the topology.
  3. Build a supported VSF stack with a defined conductor, member identities and split-detection design while validating management and data forwarding.
  4. Set a consistent MSTP region name, revision and VLAN-to-instance mapping and deliberately place the root where the topology requires.

Explanation

Correct Answer

A:

The decisive observed condition is: A kiosk plugged into an access port obtains a visitor subnet rather than the production device subnet. The appropriate switching action is: Assign user ports to the intended access VLAN and verify that untagged frames reach the proper broadcast domain. It addresses the risk that a correct IP address cannot repair wrong VLAN membership, and access ports in unintended VLANs can expose protected resources. Confirm with: Two test hosts in the same allowed VLAN exchange traffic while a restricted VLAN host remains separated as designed.

Incorrect Answers

B:

This alternative concerns vlan trunk tagging and permitted vlan filters; its associated risk is: A missing tagged VLAN on one hop silently isolates clients, while unintended VLAN allowance bridges security domains. The observed case A kiosk plugged into an access port obtains a visitor subnet rather than the production device subnet requires the more specific vlan access port membership and untagged traffic control. The targeted action is: Assign user ports to the intended access VLAN and verify that untagged frames reach the proper broadcast domain.

C:

This alternative concerns vsf single-logical-switch stack service; its associated risk is: Incorrect member order or split handling can leave orphaned interfaces and interrupt a shared access stack. The observed case A kiosk plugged into an access port obtains a visitor subnet rather than the production device subnet requires the more specific vlan access port membership and untagged traffic control. The targeted action is: Assign user ports to the intended access VLAN and verify that untagged frames reach the proper broadcast domain.

D:

This alternative concerns mstp configuration and loop control; its associated risk is: A mismatched MSTP region or unintended root can block critical trunks or increase convergence disruption. The observed case A kiosk plugged into an access port obtains a visitor subnet rather than the production device subnet requires the more specific vlan access port membership and untagged traffic control. The targeted action is: Assign user ports to the intended access VLAN and verify that untagged frames reach the proper broadcast domain.

Question 218

An engineer investigates: A kiosk plugged into an access port obtains a visitor subnet rather than the production device subnet. Which verification proves the intended operational state rather than just a saved configuration?

  1. Two test hosts in the same allowed VLAN exchange traffic while a restricted VLAN host remains separated as designed.
  2. Spanning-tree show output confirms expected instance membership, root IDs and port forwarding or blocking roles.
  3. A hop-by-hop tag trace proves required VLANs pass and disallowed VLANs are absent on all uplinks.
  4. The stack reports one intended logical switch, complete member ports and successful conductor and link-failover behavior.

Explanation

Correct Answer

A:

The independent acceptance evidence for A kiosk plugged into an access port obtains a visitor subnet rather than the production device subnet is: Two test hosts in the same allowed VLAN exchange traffic while a restricted VLAN host remains separated as designed. It tests whether the team has actually implemented: Assign user ports to the intended access VLAN and verify that untagged frames reach the proper broadcast domain. An enabled interface or saved configuration by itself is not evidence of complete service recovery.

Incorrect Answers

B:

This alternative concerns mstp configuration and loop control; its associated risk is: A mismatched MSTP region or unintended root can block critical trunks or increase convergence disruption. The observed case A kiosk plugged into an access port obtains a visitor subnet rather than the production device subnet requires the more specific vlan access port membership and untagged traffic control. The targeted action is: Assign user ports to the intended access VLAN and verify that untagged frames reach the proper broadcast domain.

C:

This alternative concerns vlan trunk tagging and permitted vlan filters; its associated risk is: A missing tagged VLAN on one hop silently isolates clients, while unintended VLAN allowance bridges security domains. The observed case A kiosk plugged into an access port obtains a visitor subnet rather than the production device subnet requires the more specific vlan access port membership and untagged traffic control. The targeted action is: Assign user ports to the intended access VLAN and verify that untagged frames reach the proper broadcast domain.

D:

This alternative concerns vsf single-logical-switch stack service; its associated risk is: Incorrect member order or split handling can leave orphaned interfaces and interrupt a shared access stack. The observed case A kiosk plugged into an access port obtains a visitor subnet rather than the production device subnet requires the more specific vlan access port membership and untagged traffic control. The targeted action is: Assign user ports to the intended access VLAN and verify that untagged frames reach the proper broadcast domain.

Question 219

An HPE Aruba Networking engineer observes: An administrator creates VLAN 120 but never assigns the affected switchport to it. The corrective solution must keep intended connectivity, segmentation, and operational resilience. What is the most defensible operational action before closing the network change?

  1. Set a consistent MSTP region name, revision and VLAN-to-instance mapping and deliberately place the root where the topology requires.
  2. Configure and validate tagged VLAN membership across each uplink and consistent native VLAN treatment where required by the topology.
  3. Form LAG interfaces with consistent LACP settings, eligible member speeds and partner wiring, then evaluate per-flow hashing limitations.
  4. Assign user ports to the intended access VLAN and verify that untagged frames reach the proper broadcast domain.

Explanation

Correct Answer

D:

The decisive observed condition is: An administrator creates VLAN 120 but never assigns the affected switchport to it. The appropriate switching action is: Assign user ports to the intended access VLAN and verify that untagged frames reach the proper broadcast domain. It addresses the risk that a correct IP address cannot repair wrong VLAN membership, and access ports in unintended VLANs can expose protected resources. Confirm with: Two test hosts in the same allowed VLAN exchange traffic while a restricted VLAN host remains separated as designed.

Incorrect Answers

A:

This alternative concerns mstp configuration and loop control; its associated risk is: A mismatched MSTP region or unintended root can block critical trunks or increase convergence disruption. The observed case An administrator creates VLAN 120 but never assigns the affected switchport to it requires the more specific vlan access port membership and untagged traffic control. The targeted action is: Assign user ports to the intended access VLAN and verify that untagged frames reach the proper broadcast domain.

B:

This alternative concerns vlan trunk tagging and permitted vlan filters; its associated risk is: A missing tagged VLAN on one hop silently isolates clients, while unintended VLAN allowance bridges security domains. The observed case An administrator creates VLAN 120 but never assigns the affected switchport to it requires the more specific vlan access port membership and untagged traffic control. The targeted action is: Assign user ports to the intended access VLAN and verify that untagged frames reach the proper broadcast domain.

C:

This alternative concerns lacp member selection and load distribution; its associated risk is: A partially formed aggregation can strand traffic or produce surprising throughput because a single flow usually hashes to one member. The observed case An administrator creates VLAN 120 but never assigns the affected switchport to it requires the more specific vlan access port membership and untagged traffic control. The targeted action is: Assign user ports to the intended access VLAN and verify that untagged frames reach the proper broadcast domain.

Question 220

The HPE AOS-CX switching case is: An administrator creates VLAN 120 but never assigns the affected switchport to it. Select TWO: a corrective switching action and separate evidence that the correction worked. (Select TWO.)

  1. Set a consistent MSTP region name, revision and VLAN-to-instance mapping and deliberately place the root where the topology requires.
  2. Form LAG interfaces with consistent LACP settings, eligible member speeds and partner wiring, then evaluate per-flow hashing limitations.
  3. Assign user ports to the intended access VLAN and verify that untagged frames reach the proper broadcast domain.
  4. Two test hosts in the same allowed VLAN exchange traffic while a restricted VLAN host remains separated as designed.
  5. A hop-by-hop tag trace proves required VLANs pass and disallowed VLANs are absent on all uplinks.

Explanation

Correct Answers

C:

The targeted correction for An administrator creates VLAN 120 but never assigns the affected switchport to it is: Assign user ports to the intended access VLAN and verify that untagged frames reach the proper broadcast domain. It reduces the risk that a correct IP address cannot repair wrong VLAN membership, and access ports in unintended VLANs can expose protected resources.

D:

A separate operational validation for An administrator creates VLAN 120 but never assigns the affected switchport to it is: Two test hosts in the same allowed VLAN exchange traffic while a restricted VLAN host remains separated as designed. It proves intended behavior instead of accepting configuration presence alone.

Incorrect Answers

A:

This alternative concerns mstp configuration and loop control; its associated risk is: A mismatched MSTP region or unintended root can block critical trunks or increase convergence disruption. The observed case An administrator creates VLAN 120 but never assigns the affected switchport to it requires the more specific vlan access port membership and untagged traffic control. The targeted action is: Assign user ports to the intended access VLAN and verify that untagged frames reach the proper broadcast domain.

B:

This alternative concerns lacp member selection and load distribution; its associated risk is: A partially formed aggregation can strand traffic or produce surprising throughput because a single flow usually hashes to one member. The observed case An administrator creates VLAN 120 but never assigns the affected switchport to it requires the more specific vlan access port membership and untagged traffic control. The targeted action is: Assign user ports to the intended access VLAN and verify that untagged frames reach the proper broadcast domain.

E:

This alternative concerns vlan trunk tagging and permitted vlan filters; its associated risk is: A missing tagged VLAN on one hop silently isolates clients, while unintended VLAN allowance bridges security domains. The observed case An administrator creates VLAN 120 but never assigns the affected switchport to it requires the more specific vlan access port membership and untagged traffic control. The targeted action is: Assign user ports to the intended access VLAN and verify that untagged frames reach the proper broadcast domain.