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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 43

Question 420

An enterprise network designer recommends: Use Multiple VLAN Registration Protocol on supported participating interfaces. Which situation most clearly calls for this action?

  1. Adjacent switches must advertise dynamic VLAN membership on an inter-switch connection instead of manual provisioning of every allowed VLAN.
  2. A VLAN never appears dynamically on a neighboring switch because one end has no MVRP support or participation.
  3. A previously available dynamic VLAN disappears after an uplink topology change and administrators must check its source.
  4. An isolated switch requires a single fixed VLAN and there is no design requirement to discover it dynamically across trunks.

Explanation

Correct Answer

A:

This case requires the MVRP automatic VLAN exchange action. Switches can exchange VLAN registration information dynamically over the connection.

Incorrect Answers

B:

This other case would be better matched to Verify MVRP capability and configuration on both ends of the trunk. Both switches can participate in supported VLAN registration exchanges.

C:

This other case would be better matched to Inspect operational MVRP registration and learned VLAN status on affected interfaces. The team can identify which trunk advertised or withdrew VLAN membership.

D:

This other case would be better matched to Configure the specified VLAN and trunk membership statically instead of adding MVRP complexity. The intended VLAN can operate without a dynamic registration dependency.

Question 421

An operator wants dynamic VLAN advertisements to remain limited to a specific subset of participating switching links. Which Junos networking action or protocol decision best addresses this requirement?

  1. Configure the specified VLAN and trunk membership statically instead of adding MVRP complexity.
  2. Inspect operational MVRP registration and learned VLAN status on affected interfaces.
  3. Verify end-to-end MVRP participation and VLAN registration behavior on the intermediate switch.
  4. Enable MVRP only on intended eligible trunks and bound the propagation design.

Explanation

Correct Answer

D:

This action addresses MVRP registration scope. Dynamic VLAN registration does not need to extend across every physical link.

Incorrect Answers

A:

That action targets Static VLAN alternative: The intended VLAN can operate without a dynamic registration dependency. It does not directly resolve the stated MVRP registration scope requirement.

B:

That action targets MVRP learned VLAN state: The team can identify which trunk advertised or withdrew VLAN membership. It does not directly resolve the stated MVRP registration scope requirement.

C:

That action targets MVRP propagation troubleshooting: The operator can locate where the dynamic VLAN registration stops propagating. It does not directly resolve the stated MVRP registration scope requirement.

Question 422

A Junos network engineer takes this step: Enable MVRP only on intended eligible trunks and bound the propagation design. Which outcome most directly follows?

  1. Dynamic VLAN registration does not need to extend across every physical link.
  2. The operator can locate where the dynamic VLAN registration stops propagating.
  3. The team can identify which trunk advertised or withdrew VLAN membership.
  4. The intended VLAN can operate without a dynamic registration dependency.

Explanation

Correct Answer

A:

This is the direct result of the MVRP registration scope decision: Dynamic VLAN registration does not need to extend across every physical link.

Incorrect Answers

B:

This outcome is associated with MVRP propagation troubleshooting (Verify end-to-end MVRP participation and VLAN registration behavior on the intermediate switch.), not the specified action.

C:

This outcome is associated with MVRP learned VLAN state (Inspect operational MVRP registration and learned VLAN status on affected interfaces.), not the specified action.

D:

This outcome is associated with Static VLAN alternative (Configure the specified VLAN and trunk membership statically instead of adding MVRP complexity.), not the specified action.

Question 423

An operator wants dynamic VLAN advertisements to remain limited to a specific subset of participating switching links. A colleague instead suggests: Inspect operational MVRP registration and learned VLAN status on affected interfaces. Which corrective approach most directly addresses the original issue?

  1. Verify end-to-end MVRP participation and VLAN registration behavior on the intermediate switch.
  2. Enable MVRP only on intended eligible trunks and bound the propagation design.
  3. Inspect operational MVRP registration and learned VLAN status on affected interfaces.
  4. Configure the specified VLAN and trunk membership statically instead of adding MVRP complexity.

Explanation

Correct Answer

B:

This corrective choice addresses MVRP registration scope. Dynamic VLAN registration does not need to extend across every physical link.

Incorrect Answers

A:

That alternative applies to MVRP propagation troubleshooting instead. The operator can locate where the dynamic VLAN registration stops propagating.

C:

That alternative applies to MVRP learned VLAN state instead. The team can identify which trunk advertised or withdrew VLAN membership.

D:

That alternative applies to Static VLAN alternative instead. The intended VLAN can operate without a dynamic registration dependency.

Question 424

An enterprise network designer recommends: Enable MVRP only on intended eligible trunks and bound the propagation design. Which situation most clearly calls for this action?

  1. An isolated switch requires a single fixed VLAN and there is no design requirement to discover it dynamically across trunks.
  2. A previously available dynamic VLAN disappears after an uplink topology change and administrators must check its source.
  3. An operator wants dynamic VLAN advertisements to remain limited to a specific subset of participating switching links.
  4. Two trunks form an intermediate switching path but dynamically learned VLANs are available only on the first link.

Explanation

Correct Answer

C:

This case requires the MVRP registration scope action. Dynamic VLAN registration does not need to extend across every physical link.

Incorrect Answers

A:

This other case would be better matched to Configure the specified VLAN and trunk membership statically instead of adding MVRP complexity. The intended VLAN can operate without a dynamic registration dependency.

B:

This other case would be better matched to Inspect operational MVRP registration and learned VLAN status on affected interfaces. The team can identify which trunk advertised or withdrew VLAN membership.

D:

This other case would be better matched to Verify end-to-end MVRP participation and VLAN registration behavior on the intermediate switch. The operator can locate where the dynamic VLAN registration stops propagating.

Question 425

A VLAN never appears dynamically on a neighboring switch because one end has no MVRP support or participation. Which Junos networking action or protocol decision best addresses this requirement?

  1. Use Multiple VLAN Registration Protocol on supported participating interfaces.
  2. Verify MVRP capability and configuration on both ends of the trunk.
  3. Configure the specified VLAN and trunk membership statically instead of adding MVRP complexity.
  4. Verify end-to-end MVRP participation and VLAN registration behavior on the intermediate switch.

Explanation

Correct Answer

B:

This action addresses MVRP neighbor support. Both switches can participate in supported VLAN registration exchanges.

Incorrect Answers

A:

That action targets MVRP automatic VLAN exchange: Switches can exchange VLAN registration information dynamically over the connection. It does not directly resolve the stated MVRP neighbor support requirement.

C:

That action targets Static VLAN alternative: The intended VLAN can operate without a dynamic registration dependency. It does not directly resolve the stated MVRP neighbor support requirement.

D:

That action targets MVRP propagation troubleshooting: The operator can locate where the dynamic VLAN registration stops propagating. It does not directly resolve the stated MVRP neighbor support requirement.

Question 426

A Junos network engineer takes this step: Verify MVRP capability and configuration on both ends of the trunk. Which outcome most directly follows?

  1. The operator can locate where the dynamic VLAN registration stops propagating.
  2. The intended VLAN can operate without a dynamic registration dependency.
  3. Both switches can participate in supported VLAN registration exchanges.
  4. Switches can exchange VLAN registration information dynamically over the connection.

Explanation

Correct Answer

C:

This is the direct result of the MVRP neighbor support decision: Both switches can participate in supported VLAN registration exchanges.

Incorrect Answers

A:

This outcome is associated with MVRP propagation troubleshooting (Verify end-to-end MVRP participation and VLAN registration behavior on the intermediate switch.), not the specified action.

B:

This outcome is associated with Static VLAN alternative (Configure the specified VLAN and trunk membership statically instead of adding MVRP complexity.), not the specified action.

D:

This outcome is associated with MVRP automatic VLAN exchange (Use Multiple VLAN Registration Protocol on supported participating interfaces.), not the specified action.

Question 427

A VLAN never appears dynamically on a neighboring switch because one end has no MVRP support or participation. A colleague instead suggests: Configure the specified VLAN and trunk membership statically instead of adding MVRP complexity. Which corrective approach most directly addresses the original issue?

  1. Verify end-to-end MVRP participation and VLAN registration behavior on the intermediate switch.
  2. Configure the specified VLAN and trunk membership statically instead of adding MVRP complexity.
  3. Use Multiple VLAN Registration Protocol on supported participating interfaces.
  4. Verify MVRP capability and configuration on both ends of the trunk.

Explanation

Correct Answer

D:

This corrective choice addresses MVRP neighbor support. Both switches can participate in supported VLAN registration exchanges.

Incorrect Answers

A:

That alternative applies to MVRP propagation troubleshooting instead. The operator can locate where the dynamic VLAN registration stops propagating.

B:

That alternative applies to Static VLAN alternative instead. The intended VLAN can operate without a dynamic registration dependency.

C:

That alternative applies to MVRP automatic VLAN exchange instead. Switches can exchange VLAN registration information dynamically over the connection.

Question 428

An enterprise network designer recommends: Verify MVRP capability and configuration on both ends of the trunk. Which situation most clearly calls for this action?

  1. A VLAN never appears dynamically on a neighboring switch because one end has no MVRP support or participation.
  2. Two trunks form an intermediate switching path but dynamically learned VLANs are available only on the first link.
  3. An isolated switch requires a single fixed VLAN and there is no design requirement to discover it dynamically across trunks.
  4. Adjacent switches must advertise dynamic VLAN membership on an inter-switch connection instead of manual provisioning of every allowed VLAN.

Explanation

Correct Answer

A:

This case requires the MVRP neighbor support action. Both switches can participate in supported VLAN registration exchanges.

Incorrect Answers

B:

This other case would be better matched to Verify end-to-end MVRP participation and VLAN registration behavior on the intermediate switch. The operator can locate where the dynamic VLAN registration stops propagating.

C:

This other case would be better matched to Configure the specified VLAN and trunk membership statically instead of adding MVRP complexity. The intended VLAN can operate without a dynamic registration dependency.

D:

This other case would be better matched to Use Multiple VLAN Registration Protocol on supported participating interfaces. Switches can exchange VLAN registration information dynamically over the connection.

Question 429

A previously available dynamic VLAN disappears after an uplink topology change and administrators must check its source. Which Junos networking action or protocol decision best addresses this requirement?

  1. Use Multiple VLAN Registration Protocol on supported participating interfaces.
  2. Verify end-to-end MVRP participation and VLAN registration behavior on the intermediate switch.
  3. Enable MVRP only on intended eligible trunks and bound the propagation design.
  4. Inspect operational MVRP registration and learned VLAN status on affected interfaces.

Explanation

Correct Answer

D:

This action addresses MVRP learned VLAN state. The team can identify which trunk advertised or withdrew VLAN membership.

Incorrect Answers

A:

That action targets MVRP automatic VLAN exchange: Switches can exchange VLAN registration information dynamically over the connection. It does not directly resolve the stated MVRP learned VLAN state requirement.

B:

That action targets MVRP propagation troubleshooting: The operator can locate where the dynamic VLAN registration stops propagating. It does not directly resolve the stated MVRP learned VLAN state requirement.

C:

That action targets MVRP registration scope: Dynamic VLAN registration does not need to extend across every physical link. It does not directly resolve the stated MVRP learned VLAN state requirement.

Question 430

A Junos network engineer takes this step: Inspect operational MVRP registration and learned VLAN status on affected interfaces. Which outcome most directly follows?

  1. The team can identify which trunk advertised or withdrew VLAN membership.
  2. The operator can locate where the dynamic VLAN registration stops propagating.
  3. Switches can exchange VLAN registration information dynamically over the connection.
  4. Dynamic VLAN registration does not need to extend across every physical link.

Explanation

Correct Answer

A:

This is the direct result of the MVRP learned VLAN state decision: The team can identify which trunk advertised or withdrew VLAN membership.

Incorrect Answers

B:

This outcome is associated with MVRP propagation troubleshooting (Verify end-to-end MVRP participation and VLAN registration behavior on the intermediate switch.), not the specified action.

C:

This outcome is associated with MVRP automatic VLAN exchange (Use Multiple VLAN Registration Protocol on supported participating interfaces.), not the specified action.

D:

This outcome is associated with MVRP registration scope (Enable MVRP only on intended eligible trunks and bound the propagation design.), not the specified action.

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