Juniper Juniper Certifications JN0-351 Questions & Answers

• Question 81:

  Click the Exhibit button.

  

  Referring to the exhibit, which statement is correct?

  A. R1 and R2 are elected as DROthers.

  B. R3 has the complete OSPF database.

  C. R3 and R4 have an adjacency state of Full.

  D. R4 is elected as the DR.

  Correct Answer: B

• Question 82:

  Which two statements about the root bridge election process are correct? (Choose two.)

  A. The highest root bridge priority is preferred over lower root bridge priorities.

  B. The highest root bridge identifier is preferred over lower root bridge identifiers.

  C. The lowest root bridge priority is preferred over higher root bridge priorities.

  D. The lowest root bridge identifier is preferred over higher root bridge identifiers.

  Correct Answer: CD

• Question 83:

  You are configuring IBGP and you must ensure that reachability is maintained between participating routers, even if the physical topology changes.

  Which two actions should you perform in this scenario? (Choose two.)

  A. Configure DHCP on all IBGP devices.

  B. Configure an IGP within your IBGP network.

  C. Configure static routes to all IBGP peers.

  D. Configure IBGP peerings to loopback addresses.

  Correct Answer: BD

• Question 84:

  Which two statements about aggregate routes in the Junos OS are correct? (Choose two.)

  A. An aggregate route has a default next hop of an IP address.

  B. An aggregate route always shows as active in the routing table.

  C. An active route can contribute only to a single aggregate route.

  D. Only one aggregate route can be configured for each destination prefix.

  Correct Answer: CD

• Question 85:

  Click the Exhibit button.

  ---- Exhibit Missing ---

  Referring to the exhibit, which three statements are correct? (Choose three.)

  A. R1 and R3 can form a Layer 2 IS-IS adjacency.

  B. R2 and R4 can form a Layer 1 IS-IS adjacency.

  C. R3 and R4 can form a Layer 2 IS-IS adjacency.

  D. R1 and R3 can form a Layer 1 IS-IS adjacency.

  E. R3 and R4 can form a Layer 1 IS-IS adjacency.

  Correct Answer: ACD

• Question 86:

  Click the Exhibit button.

  

  Referring to the exhibit, which set of interfaces is enabled for Ethernet switching?

  A. ge-0/0/6, ge-0/0/7, and ge-0/0/8

  B. ge-0/0/6, ge-0/0/8, and ge-0/0/10

  C. ge0/0/6, ge-0/0/7, ge-0/0/8, and ge-0/0/10

  D. ge-0/0/6 and ge-0/0/8

  Correct Answer: C

• Question 87:

  You are deploying a new switch configuration at a small branch using EX3400 Series switches. You are concerned about loop prevention.

  In this scenario, which configuration would you deploy?

  A. RSTP

  B. EVPN

  C. MPLS D. BPDU

  Correct Answer: A

• Question 88:

  Which two statements about Layer 2 loop prevention protocols are correct? (Choose two.)

  A. RSTP distributes the current tree topology using the root bridge.

  B. STP can take 30 to 50 seconds to respond to a topology change.

  C. RSTP can take 30 to 50 seconds to respond to a topology change.

  D. STP distributes the current tree topology using the root bridge.

  Correct Answer: AB

• Question 89:

  What kind of filter would be written to protect control traffic destined for the switch?

  A. A filter applied to the default VLAN

  B. A filter applied to the native VLAN

  C. A filter applied to the management interface

  D. A filter applied to the loopback interface

  Correct Answer: D

• Question 90:

  Which two statements are true about high availability on Junos devices? (Choose two.)

  A. BFD is faster at detecting failures than default GRE or OSPF timers.

  B. NSR is independent of helper routers to assist the routing platform in restoring routing protocol information.

  C. NSR is dependent on helper routers to assist the routing platform in restoring routing protocol information.

  D. BFD is slower at detecting failures than default GRE or OSPF timers.

  Correct Answer: AB

  Explanation: https://www.juniper.net/documentation/en_US/junos/topics/concept/nsr- overview.html