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Exam Code: JN0-650

Exam Name: Enterprise Routing and Switching, Professional (JNCIP-ENT)

Certification Provider: Juniper

Corresponding Certification: JNCIP-ENT

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Juniper JN0-650 Practice Test 62

Question 610

A Junos network engineer takes this step: Provide supported PoE power from a capable switch port or an approved injector. Which outcome most directly follows?

  1. Power budget or fault evidence can distinguish electrical delivery problems from voice signaling faults.
  2. The upgraded switch capacity can be sized to meet worst-case supported device demand.
  3. The endpoint can receive both network connectivity and electrical power through the Ethernet path.
  4. The design can identify whether the hardware has capacity for the full set of powered devices.

Explanation

Correct Answer

C:

This is the direct result of the PoE electrical power decision: The endpoint can receive both network connectivity and electrical power through the Ethernet path.

Incorrect Answers

A:

This outcome is associated with PoE monitoring (Inspect Junos PoE port power consumption, allocation and fault status.), not the specified action.

B:

This outcome is associated with PoE capacity planning (Reassess device-by-device PoE requirements before choosing switch hardware and power supplies.), not the specified action.

D:

This outcome is associated with PoE switch budget (Calculate the aggregate power demand against the available switch or module PoE budget.), not the specified action.

Question 611

A newly installed desk phone has an Ethernet data link but cannot start because its power adapter is missing. A colleague instead suggests: Inspect Junos PoE port power consumption, allocation and fault status. Which corrective approach most directly addresses the original issue?

  1. Reassess device-by-device PoE requirements before choosing switch hardware and power supplies.
  2. Inspect Junos PoE port power consumption, allocation and fault status.
  3. Calculate the aggregate power demand against the available switch or module PoE budget.
  4. Provide supported PoE power from a capable switch port or an approved injector.

Explanation

Correct Answer

D:

This corrective choice addresses PoE electrical power. The endpoint can receive both network connectivity and electrical power through the Ethernet path.

Incorrect Answers

A:

That alternative applies to PoE capacity planning instead. The upgraded switch capacity can be sized to meet worst-case supported device demand.

B:

That alternative applies to PoE monitoring instead. Power budget or fault evidence can distinguish electrical delivery problems from voice signaling faults.

C:

That alternative applies to PoE switch budget instead. The design can identify whether the hardware has capacity for the full set of powered devices.

Question 612

An enterprise network designer recommends: Provide supported PoE power from a capable switch port or an approved injector. Which situation most clearly calls for this action?

  1. A newly installed desk phone has an Ethernet data link but cannot start because its power adapter is missing.
  2. A network refresh adds higher-power wireless devices beside many low-power handsets on a limited electrical budget.
  3. A switch with many access points and desk phones reports insufficient available PoE power when another phone starts.
  4. The help desk cannot explain why a PoE phone reboots during peak power usage on a full switch.

Explanation

Correct Answer

A:

This case requires the PoE electrical power action. The endpoint can receive both network connectivity and electrical power through the Ethernet path.

Incorrect Answers

B:

This other case would be better matched to Reassess device-by-device PoE requirements before choosing switch hardware and power supplies. The upgraded switch capacity can be sized to meet worst-case supported device demand.

C:

This other case would be better matched to Calculate the aggregate power demand against the available switch or module PoE budget. The design can identify whether the hardware has capacity for the full set of powered devices.

D:

This other case would be better matched to Inspect Junos PoE port power consumption, allocation and fault status. Power budget or fault evidence can distinguish electrical delivery problems from voice signaling faults.

Question 613

A phone works on another switch interface but the target port reports its PoE delivery as administratively off. Which Junos networking action or protocol decision best addresses this requirement?

  1. Enable the appropriate power-over-Ethernet function on the supported access port.
  2. Calculate the aggregate power demand against the available switch or module PoE budget.
  3. Align the port's power allocation and supported PoE class with the phone's requirement.
  4. Reassess device-by-device PoE requirements before choosing switch hardware and power supplies.

Explanation

Correct Answer

A:

This action addresses PoE port disabled. The port can supply power to a connected compatible powered device.

Incorrect Answers

B:

That action targets PoE switch budget: The design can identify whether the hardware has capacity for the full set of powered devices. It does not directly resolve the stated PoE port disabled requirement.

C:

That action targets PoE class negotiation: The powered device can negotiate the level of electrical power it needs within switch limits. It does not directly resolve the stated PoE port disabled requirement.

D:

That action targets PoE capacity planning: The upgraded switch capacity can be sized to meet worst-case supported device demand. It does not directly resolve the stated PoE port disabled requirement.

Question 614

A Junos network engineer takes this step: Enable the appropriate power-over-Ethernet function on the supported access port. Which outcome most directly follows?

  1. The powered device can negotiate the level of electrical power it needs within switch limits.
  2. The port can supply power to a connected compatible powered device.
  3. The design can identify whether the hardware has capacity for the full set of powered devices.
  4. The upgraded switch capacity can be sized to meet worst-case supported device demand.

Explanation

Correct Answer

B:

This is the direct result of the PoE port disabled decision: The port can supply power to a connected compatible powered device.

Incorrect Answers

A:

This outcome is associated with PoE class negotiation (Align the port's power allocation and supported PoE class with the phone's requirement.), not the specified action.

C:

This outcome is associated with PoE switch budget (Calculate the aggregate power demand against the available switch or module PoE budget.), not the specified action.

D:

This outcome is associated with PoE capacity planning (Reassess device-by-device PoE requirements before choosing switch hardware and power supplies.), not the specified action.

Question 615

A phone works on another switch interface but the target port reports its PoE delivery as administratively off. A colleague instead suggests: Reassess device-by-device PoE requirements before choosing switch hardware and power supplies. Which corrective approach most directly addresses the original issue?

  1. Align the port's power allocation and supported PoE class with the phone's requirement.
  2. Reassess device-by-device PoE requirements before choosing switch hardware and power supplies.
  3. Enable the appropriate power-over-Ethernet function on the supported access port.
  4. Calculate the aggregate power demand against the available switch or module PoE budget.

Explanation

Correct Answer

C:

This corrective choice addresses PoE port disabled. The port can supply power to a connected compatible powered device.

Incorrect Answers

A:

That alternative applies to PoE class negotiation instead. The powered device can negotiate the level of electrical power it needs within switch limits.

B:

That alternative applies to PoE capacity planning instead. The upgraded switch capacity can be sized to meet worst-case supported device demand.

D:

That alternative applies to PoE switch budget instead. The design can identify whether the hardware has capacity for the full set of powered devices.

Question 616

An enterprise network designer recommends: Enable the appropriate power-over-Ethernet function on the supported access port. Which situation most clearly calls for this action?

  1. An IP phone requests a higher power allocation than the port's configured or supported class permits.
  2. A network refresh adds higher-power wireless devices beside many low-power handsets on a limited electrical budget.
  3. A switch with many access points and desk phones reports insufficient available PoE power when another phone starts.
  4. A phone works on another switch interface but the target port reports its PoE delivery as administratively off.

Explanation

Correct Answer

D:

This case requires the PoE port disabled action. The port can supply power to a connected compatible powered device.

Incorrect Answers

A:

This other case would be better matched to Align the port's power allocation and supported PoE class with the phone's requirement. The powered device can negotiate the level of electrical power it needs within switch limits.

B:

This other case would be better matched to Reassess device-by-device PoE requirements before choosing switch hardware and power supplies. The upgraded switch capacity can be sized to meet worst-case supported device demand.

C:

This other case would be better matched to Calculate the aggregate power demand against the available switch or module PoE budget. The design can identify whether the hardware has capacity for the full set of powered devices.

Question 617

The help desk cannot explain why a PoE phone reboots during peak power usage on a full switch. Which Junos networking action or protocol decision best addresses this requirement?

  1. Inspect Junos PoE port power consumption, allocation and fault status.
  2. Align the port's power allocation and supported PoE class with the phone's requirement.
  3. Provide supported PoE power from a capable switch port or an approved injector.
  4. Calculate the aggregate power demand against the available switch or module PoE budget.

Explanation

Correct Answer

A:

This action addresses PoE monitoring. Power budget or fault evidence can distinguish electrical delivery problems from voice signaling faults.

Incorrect Answers

B:

That action targets PoE class negotiation: The powered device can negotiate the level of electrical power it needs within switch limits. It does not directly resolve the stated PoE monitoring requirement.

C:

That action targets PoE electrical power: The endpoint can receive both network connectivity and electrical power through the Ethernet path. It does not directly resolve the stated PoE monitoring requirement.

D:

That action targets PoE switch budget: The design can identify whether the hardware has capacity for the full set of powered devices. It does not directly resolve the stated PoE monitoring requirement.

Question 618

A Junos network engineer takes this step: Inspect Junos PoE port power consumption, allocation and fault status. Which outcome most directly follows?

  1. The design can identify whether the hardware has capacity for the full set of powered devices.
  2. Power budget or fault evidence can distinguish electrical delivery problems from voice signaling faults.
  3. The powered device can negotiate the level of electrical power it needs within switch limits.
  4. The endpoint can receive both network connectivity and electrical power through the Ethernet path.

Explanation

Correct Answer

B:

This is the direct result of the PoE monitoring decision: Power budget or fault evidence can distinguish electrical delivery problems from voice signaling faults.

Incorrect Answers

A:

This outcome is associated with PoE switch budget (Calculate the aggregate power demand against the available switch or module PoE budget.), not the specified action.

C:

This outcome is associated with PoE class negotiation (Align the port's power allocation and supported PoE class with the phone's requirement.), not the specified action.

D:

This outcome is associated with PoE electrical power (Provide supported PoE power from a capable switch port or an approved injector.), not the specified action.

Question 619

The help desk cannot explain why a PoE phone reboots during peak power usage on a full switch. A colleague instead suggests: Calculate the aggregate power demand against the available switch or module PoE budget. Which corrective approach most directly addresses the original issue?

  1. Calculate the aggregate power demand against the available switch or module PoE budget.
  2. Align the port's power allocation and supported PoE class with the phone's requirement.
  3. Inspect Junos PoE port power consumption, allocation and fault status.
  4. Provide supported PoE power from a capable switch port or an approved injector.

Explanation

Correct Answer

C:

This corrective choice addresses PoE monitoring. Power budget or fault evidence can distinguish electrical delivery problems from voice signaling faults.

Incorrect Answers

A:

That alternative applies to PoE switch budget instead. The design can identify whether the hardware has capacity for the full set of powered devices.

B:

That alternative applies to PoE class negotiation instead. The powered device can negotiate the level of electrical power it needs within switch limits.

D:

That alternative applies to PoE electrical power instead. The endpoint can receive both network connectivity and electrical power through the Ethernet path.

Question 620

An enterprise network designer recommends: Inspect Junos PoE port power consumption, allocation and fault status. Which situation most clearly calls for this action?

  1. A switch with many access points and desk phones reports insufficient available PoE power when another phone starts.
  2. An IP phone requests a higher power allocation than the port's configured or supported class permits.
  3. A newly installed desk phone has an Ethernet data link but cannot start because its power adapter is missing.
  4. The help desk cannot explain why a PoE phone reboots during peak power usage on a full switch.

Explanation

Correct Answer

D:

This case requires the PoE monitoring action. Power budget or fault evidence can distinguish electrical delivery problems from voice signaling faults.

Incorrect Answers

A:

This other case would be better matched to Calculate the aggregate power demand against the available switch or module PoE budget. The design can identify whether the hardware has capacity for the full set of powered devices.

B:

This other case would be better matched to Align the port's power allocation and supported PoE class with the phone's requirement. The powered device can negotiate the level of electrical power it needs within switch limits.

C:

This other case would be better matched to Provide supported PoE power from a capable switch port or an approved injector. The endpoint can receive both network connectivity and electrical power through the Ethernet path.

Enterprise Routing and Switching, Professional (JNCIP-ENT) (JN0-650) Practice Tests