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Juniper JN0-364 Practice Test 21

Question 200

A Junos service-provider engineer is reviewing this operational case: A newly established BGP peer exchanges no routes after Keepalives begin. What specific configuration or diagnostic action BEST implements the intended response? Select ONE best answer.

  1. Inspect import/export policy and UPDATE advertisements
  2. Use an approved import policy to raise local preference for the intended path
  3. Review full-mesh or supported route-reflection design rather than changing EBGP ASNs
  4. Compare supported hello and dead intervals and interface state

Explanation

Correct Answer

A:

Inspect import/export policy and UPDATE advertisements is the best implementation and troubleshooting step for this Junos service-provider case: A newly established BGP peer exchanges no routes after Keepalives begin. Technical basis: BGP message classes establish sessions, advertise or withdraw routes, maintain liveliness and signal protocol errors.

Incorrect Answers

B:

That option concerns BGP local preference selection. BGP message classes establish sessions, advertise or withdraw routes, maintain liveliness and signal protocol errors.

C:

Review full-mesh or supported route-reflection design rather than changing EBGP ASNs is relevant to the different engineering topic "IBGP route propagation constraints", but it is not the most directly supported implementation and troubleshooting step for this precise case: A newly established BGP peer exchanges no routes after Keepalives begin. the best answer here is: Inspect import/export policy and UPDATE advertisements.

D:

That option concerns OSPF hello/dead agreement. BGP message classes establish sessions, advertise or withdraw routes, maintain liveliness and signal protocol errors.

Question 201

A Junos service-provider engineer is reviewing this operational case: A newly established BGP peer exchanges no routes after Keepalives begin. Which observation would MOST RELIABLY verify the intended outcome? Select ONE best answer.

  1. Peers share the approved policy but retain valid independent sessions
  2. The summary is active and external advertisements reflect valid customer reachability
  3. The session is Established and intended NLRI appears in UPDATEs
  4. The preferred route follows actual ordered policy rules

Explanation

Correct Answer

C:

The session is Established and intended NLRI appears in UPDATEs is the best operational verification evidence for this Junos service-provider case: A newly established BGP peer exchanges no routes after Keepalives begin. Technical basis: BGP message classes establish sessions, advertise or withdraw routes, maintain liveliness and signal protocol errors.

Incorrect Answers

A:

Peers share the approved policy but retain valid independent sessions is relevant to the different engineering topic "BGP peer-group policy inheritance", but it is not the most directly supported operational verification evidence for this precise case: A newly established BGP peer exchanges no routes after Keepalives begin. the best answer here is: The session is Established and intended NLRI appears in UPDATEs.

B:

That option concerns Aggregate-route contributor activation. BGP message classes establish sessions, advertise or withdraw routes, maintain liveliness and signal protocol errors.

D:

The preferred route follows actual ordered policy rules is relevant to the different engineering topic "BGP best-path selection order", but it is not the most directly supported operational verification evidence for this precise case: A newly established BGP peer exchanges no routes after Keepalives begin. the best answer here is: The session is Established and intended NLRI appears in UPDATEs.

Question 202

A provider network team identifies this situation: A neighbor resets immediately with NOTIFICATION after OPEN. Which engineering decision BEST fits the stated requirement? Choose ONE best answer.

  1. Configure an eBGP or iBGP peer with the correct peer AS and reachable TCP endpoint
  2. Use NSR for supported control-plane redundancy when preserving routing protocol state during RE switchover matters
  3. Verify the BGP NEXT_HOP resolves in the correct table before expecting installation
  4. Interpret OPEN, UPDATE, KEEPALIVE and NOTIFICATION roles during session setup and operation

Explanation

Correct Answer

D:

Interpret OPEN, UPDATE, KEEPALIVE and NOTIFICATION roles during session setup and operation is the best technical design or decision for this Junos service-provider case: A neighbor resets immediately with NOTIFICATION after OPEN. Technical basis: BGP message classes establish sessions, advertise or withdraw routes, maintain liveliness and signal protocol errors.

Incorrect Answers

A:

That option concerns BGP TCP session and AS negotiation. BGP message classes establish sessions, advertise or withdraw routes, maintain liveliness and signal protocol errors.

B:

That option concerns Nonstop active routing NSR. BGP message classes establish sessions, advertise or withdraw routes, maintain liveliness and signal protocol errors.

C:

Verify the BGP NEXT_HOP resolves in the correct table before expecting installation is relevant to the different engineering topic "BGP next-hop reachability", but it is not the most directly supported technical design or decision for this precise case: A neighbor resets immediately with NOTIFICATION after OPEN. the best answer here is: Interpret OPEN, UPDATE, KEEPALIVE and NOTIFICATION roles during session setup and operation.

Question 203

A provider network team identifies this situation: A neighbor resets immediately with NOTIFICATION after OPEN. Which implementation or troubleshooting step is MOST APPROPRIATE here? Choose ONE best answer.

  1. Inspect iBGP dissemination design and peer topology
  2. Review overload configuration and operational state
  3. Compare AS_PATH sequence and local preferences of candidate routes
  4. Read the error code and compare configured capability and AS expectations

Explanation

Correct Answer

D:

Read the error code and compare configured capability and AS expectations is the best implementation and troubleshooting step for this Junos service-provider case: A neighbor resets immediately with NOTIFICATION after OPEN. Technical basis: BGP message classes establish sessions, advertise or withdraw routes, maintain liveliness and signal protocol errors.

Incorrect Answers

A:

Inspect iBGP dissemination design and peer topology is relevant to the different engineering topic "IBGP route propagation constraints", but it is not the most directly supported implementation and troubleshooting step for this precise case: A neighbor resets immediately with NOTIFICATION after OPEN. the best answer here is: Read the error code and compare configured capability and AS expectations.

B:

That option concerns IS-IS overload bit maintenance. BGP message classes establish sessions, advertise or withdraw routes, maintain liveliness and signal protocol errors.

C:

That option concerns BGP AS-path loop prevention. BGP message classes establish sessions, advertise or withdraw routes, maintain liveliness and signal protocol errors.

Question 204

A provider network team identifies this situation: A neighbor resets immediately with NOTIFICATION after OPEN. What verification evidence MOST CLEARLY demonstrates the solution is working? Choose ONE best answer.

  1. The cause of negotiation failure is identified without random timer changes
  2. The topology remains loop-free after correcting control reception
  3. The deviating neighbor configuration explains its behavior
  4. The chosen route is explained by the earliest relevant selection factor

Explanation

Correct Answer

A:

The cause of negotiation failure is identified without random timer changes is the best operational verification evidence for this Junos service-provider case: A neighbor resets immediately with NOTIFICATION after OPEN. Technical basis: BGP message classes establish sessions, advertise or withdraw routes, maintain liveliness and signal protocol errors.

Incorrect Answers

B:

That option concerns BPDU visibility on trunks. BGP message classes establish sessions, advertise or withdraw routes, maintain liveliness and signal protocol errors.

C:

The deviating neighbor configuration explains its behavior is relevant to the different engineering topic "BGP peer-group policy inheritance", but it is not the most directly supported operational verification evidence for this precise case: A neighbor resets immediately with NOTIFICATION after OPEN. the best answer here is: The cause of negotiation failure is identified without random timer changes.

D:

The chosen route is explained by the earliest relevant selection factor is relevant to the different engineering topic "BGP best-path selection order", but it is not the most directly supported operational verification evidence for this precise case: A neighbor resets immediately with NOTIFICATION after OPEN. the best answer here is: The cause of negotiation failure is identified without random timer changes.

Question 205

A Junos service-provider engineer is reviewing this operational case: A provider has two transit exits and wants to prefer the primary link for outbound traffic. Which technical approach MOST DIRECTLY addresses the issue? Select ONE best answer.

  1. Use local preference to express preferred outbound exit within an AS
  2. Use MPLS and RSVP configuration together to create a supported signaled label-switched path
  3. Control BGP route advertisements with explicit export policy and eligibility checks
  4. Filter and modify received BGP routes with explicit import policy terms

Explanation

Correct Answer

A:

Use local preference to express preferred outbound exit within an AS is the best technical design or decision for this Junos service-provider case: A provider has two transit exits and wants to prefer the primary link for outbound traffic. Technical basis: BGP LOCAL_PREF is exchanged internally and higher local preference is normally preferred before AS-path length.

Incorrect Answers

B:

That option concerns RSVP LSP signaling. BGP LOCAL_PREF is exchanged internally and higher local preference is normally preferred before AS-path length.

C:

Control BGP route advertisements with explicit export policy and eligibility checks is relevant to the different engineering topic "BGP outbound advertisement policy", but it is not the most directly supported technical design or decision for this precise case: A provider has two transit exits and wants to prefer the primary link for outbound traffic. the best answer here is: Use local preference to express preferred outbound exit within an AS.

D:

Filter and modify received BGP routes with explicit import policy terms is relevant to the different engineering topic "BGP inbound routing policy", but it is not the most directly supported technical design or decision for this precise case: A provider has two transit exits and wants to prefer the primary link for outbound traffic. the best answer here is: Use local preference to express preferred outbound exit within an AS.

Question 206

A Junos service-provider engineer is reviewing this operational case: A provider has two transit exits and wants to prefer the primary link for outbound traffic. What specific configuration or diagnostic action BEST implements the intended response? Select ONE best answer.

  1. Configure the BGP neighbor with the correct peer AS and reachable endpoint
  2. Use an approved import policy to raise local preference for the intended path
  3. Inspect current route candidates and identify the first decisive comparison
  4. Configure the appropriate aggregate and review contributing routes before export

Explanation

Correct Answer

B:

Use an approved import policy to raise local preference for the intended path is the best implementation and troubleshooting step for this Junos service-provider case: A provider has two transit exits and wants to prefer the primary link for outbound traffic. Technical basis: BGP LOCAL_PREF is exchanged internally and higher local preference is normally preferred before AS-path length.

Incorrect Answers

A:

That option concerns BGP TCP session and AS negotiation. BGP LOCAL_PREF is exchanged internally and higher local preference is normally preferred before AS-path length.

C:

That option concerns BGP best-path selection order. BGP LOCAL_PREF is exchanged internally and higher local preference is normally preferred before AS-path length.

D:

That option concerns Aggregate-route contributor activation. BGP LOCAL_PREF is exchanged internally and higher local preference is normally preferred before AS-path length.

Question 207

A Junos service-provider engineer is reviewing this operational case: A provider has two transit exits and wants to prefer the primary link for outbound traffic. Which observation would MOST RELIABLY verify the intended outcome? Select ONE best answer.

  1. The required prefixes reach all authorized iBGP peers
  2. Only approved customer networks enter BGP candidate routing
  3. Both allowed VLANs pass while VLAN700 is absent
  4. Internal BGP selection prefers the configured primary when paths are otherwise valid

Explanation

Correct Answer

D:

Internal BGP selection prefers the configured primary when paths are otherwise valid is the best operational verification evidence for this Junos service-provider case: A provider has two transit exits and wants to prefer the primary link for outbound traffic. Technical basis: BGP LOCAL_PREF is exchanged internally and higher local preference is normally preferred before AS-path length.

Incorrect Answers

A:

That option concerns IBGP route propagation constraints. BGP LOCAL_PREF is exchanged internally and higher local preference is normally preferred before AS-path length.

B:

Only approved customer networks enter BGP candidate routing is relevant to the different engineering topic "BGP inbound routing policy", but it is not the most directly supported operational verification evidence for this precise case: A provider has two transit exits and wants to prefer the primary link for outbound traffic. the best answer here is: Internal BGP selection prefers the configured primary when paths are otherwise valid.

C:

That option concerns Trunk tagging and VLAN allowlist. BGP LOCAL_PREF is exchanged internally and higher local preference is normally preferred before AS-path length.

Question 208

A provider network team identifies this situation: A failover exit continues carrying traffic despite restoring the primary transit. Which engineering decision BEST fits the stated requirement? Choose ONE best answer.

  1. Understand designated intermediate system election on multi-access IS-IS links
  2. Control BGP route advertisements with explicit export policy and eligibility checks
  3. Use local preference to express preferred outbound exit within an AS
  4. Interpret OPEN, UPDATE, KEEPALIVE and NOTIFICATION roles during session setup and operation

Explanation

Correct Answer

C:

Use local preference to express preferred outbound exit within an AS is the best technical design or decision for this Junos service-provider case: A failover exit continues carrying traffic despite restoring the primary transit. Technical basis: BGP LOCAL_PREF is exchanged internally and higher local preference is normally preferred before AS-path length.

Incorrect Answers

A:

That option concerns IS-IS LAN DIS election. BGP LOCAL_PREF is exchanged internally and higher local preference is normally preferred before AS-path length.

B:

Control BGP route advertisements with explicit export policy and eligibility checks is relevant to the different engineering topic "BGP outbound advertisement policy", but it is not the most directly supported technical design or decision for this precise case: A failover exit continues carrying traffic despite restoring the primary transit. the best answer here is: Use local preference to express preferred outbound exit within an AS.

D:

Interpret OPEN, UPDATE, KEEPALIVE and NOTIFICATION roles during session setup and operation is relevant to the different engineering topic "BGP message processing", but it is not the most directly supported technical design or decision for this precise case: A failover exit continues carrying traffic despite restoring the primary transit. the best answer here is: Use local preference to express preferred outbound exit within an AS.

Question 209

A provider network team identifies this situation: A failover exit continues carrying traffic despite restoring the primary transit. Which implementation or troubleshooting step is MOST APPROPRIATE here? Choose ONE best answer.

  1. Check next-hop attributes and IGP reachability
  2. Inspect local preference and candidate route attributes in the local AS
  3. Review ABR and backbone reachability before changing interface metrics
  4. Inspect term order and matching conditions against show route receive-protocol bgp

Explanation

Correct Answer

B:

Inspect local preference and candidate route attributes in the local AS is the best implementation and troubleshooting step for this Junos service-provider case: A failover exit continues carrying traffic despite restoring the primary transit. Technical basis: BGP LOCAL_PREF is exchanged internally and higher local preference is normally preferred before AS-path length.

Incorrect Answers

A:

Check next-hop attributes and IGP reachability is relevant to the different engineering topic "BGP next-hop reachability", but it is not the most directly supported implementation and troubleshooting step for this precise case: A failover exit continues carrying traffic despite restoring the primary transit. the best answer here is: Inspect local preference and candidate route attributes in the local AS.

C:

That option concerns OSPF backbone membership. BGP LOCAL_PREF is exchanged internally and higher local preference is normally preferred before AS-path length.

D:

Inspect term order and matching conditions against show route receive-protocol bgp is relevant to the different engineering topic "BGP inbound routing policy", but it is not the most directly supported implementation and troubleshooting step for this precise case: A failover exit continues carrying traffic despite restoring the primary transit. the best answer here is: Inspect local preference and candidate route attributes in the local AS.

Question 210

A provider network team identifies this situation: A failover exit continues carrying traffic despite restoring the primary transit. What verification evidence MOST CLEARLY demonstrates the solution is working? Choose ONE best answer.

  1. The active table contains a resolvable path for authorized prefixes
  2. Each VLAN group follows its intended MSTI tree
  3. The diagnostic report avoids unsupported cross-AS MED assumptions
  4. Selected best paths reflect intended internal exit policy

Explanation

Correct Answer

D:

Selected best paths reflect intended internal exit policy is the best operational verification evidence for this Junos service-provider case: A failover exit continues carrying traffic despite restoring the primary transit. Technical basis: BGP LOCAL_PREF is exchanged internally and higher local preference is normally preferred before AS-path length.

Incorrect Answers

A:

The active table contains a resolvable path for authorized prefixes is relevant to the different engineering topic "BGP next-hop reachability", but it is not the most directly supported operational verification evidence for this precise case: A failover exit continues carrying traffic despite restoring the primary transit. the best answer here is: Selected best paths reflect intended internal exit policy.

B:

That option concerns MSTP region consistency. BGP LOCAL_PREF is exchanged internally and higher local preference is normally preferred before AS-path length.

C:

That option concerns BGP MED and peer comparison. BGP LOCAL_PREF is exchanged internally and higher local preference is normally preferred before AS-path length.

Service Provider Routing and Switching, Specialist (JNCIS-SP) (JN0-364) Practice Tests