Juniper Juniper Certifications JN0-351 Questions & Answers

• Question 51:

  Exhibit:

  

  You have an ESXi host that is connected to ge-0/0/23 on a Juniper EX Series switch. You added a new VM that will also use the same ge-0/0/23 interface. Unfortunately, the new VM is not able to reach external devices.

  Referring to the exhibit, which command would solve this problem?

  A. set vlans default switch-options interface-mac-limit 4

  B. set vlans default switch-options interface-mac-limit 5

  C. set switch-options interface ge-0/0/23.0 interface-mac-limit 3

  D. clear ethernet-switching recovery-timeout interface ge-0/0/23.0

  Correct Answer: C

• Question 52:

  You do not want any spanning tree protocols operating in your environment, and you want to ensure that no BPDUs can be introduced into the environment.

  Which statement is true in this scenario?

  A. You must run a spanning tree protocol to block BPDUs.

  B. Incoming BPDUs are blocked by default if a spanning tree protocol is not operating.

  C. You can block BPDUs without running a spanning tree protocol using Layer 3 control.

  D. Incoming BPDUs can only be blocked by the root bridge.

  Correct Answer: C

• Question 53:

  Which two statements concerning IS-IS adjacencies are correct? (Choose two.)

  A. For Level 1 adjacencies, the area IDs can be different.

  B. For Level 2 adjacencies, the area IDs can be different.

  C. Level 2 routers can form an adjacency with Level 1 routers.

  D. Level 2 routers do not form adjacencies with Level 1 routers.

  Correct Answer: BC

• Question 54:

  Click the Exhibit button.

  

  You are trying to form an IS-IS adjacency between Router A and Router B, but the IS-IS adjacency will not form between the two routers.

  Referring to the exhibit, which action would solve this problem?

  A. Enable level 1 IS-IS routing on Router A.

  B. Enable IS-IS wide metrics on Router A.

  C. Enable level 2 IS-IS routing on Router B.

  D. Enable IS-IS wide metrics on Router B.

  Correct Answer: C

• Question 55:

  You are configuring IS-IS on the newly provisioned ae88 interface. After you commit the configuration, you notice that your adjacency is not showing up.

  

  Referring to the exhibit, what is the reason for the adjacency being down?

  A. R1 and R2 are configured for different metrics.

  B. R1 and R2 are in different IS-IS levels.

  C. R1 and R2 have different interface parameters.

  D. R1 and R2 are configured for different areas.

  Correct Answer: C

• Question 56:

  Click the Exhibit button.

  

  Why is the route shown in the exhibit hidden?

  A. The router cannot reach the protocol next hop.

  B. An MPLS LSP is unavailable.

  C. The router is being rejected through an import policy.

  D. The route is being rejected through an export policy.

  Correct Answer: C

• Question 57:

  You are asked to configure filter-based forwarding (FBF) to forward traffic sourced from a specific subnet to a webserver.

  In this scenario, which mechanism is used to add interface routes to the forwarding routing instance used in FBF?

  A. generated routes

  B. RIB groups

  C. forwarding policy

  D. routing policy

  Correct Answer: B

• Question 58:

  Exhibit.

  

  Referring to the exhibit, Router-1 and Router-2 are failing to form an IS-IS adjacency. What should you do to solve the problem?

  A. Remove the overloaded statement from Router-1.

  B. Change the IP subnet masks to match on the ge-0/0/2 interfaces of both routers.

  C. Remove the ISO address from ge-0/0/2 on Router-1.

  D. Change the ISO areas on the Io0 interfaces to match on both routers.

  Correct Answer: B

• Question 59:

  Which two statements about Layer 2 firewall filters are correct? (Choose two.)

  A. You can apply only one firewall filter term per filter.

  B. You can apply only one input filter per VLAN.

  C. You can apply multiple firewall filter terms per filter.

  D. You can apply multiple input filters per VLAN.

  Correct Answer: BC

• Question 60:

  What are three types of port designation specific to Private VLANs? (Choose three.)

  A. Promiscuous ports

  B. Transparent ports

  C. PVLAN trunk ports

  D. Designated ports

  E. Isolated ports

  Correct Answer: ACE