Juniper JNCIS-ENT JN0-349 Questions & Answers

• Question 11:

  Exhibit.

  

  Referring to the exhibit, why is the route for 10.5.5.5 hidden?

  A. It is an L3VPN route.

  B. The next hop cannot be resolved.

  C. It has an invalid community.

  D. It is a Martian route.

  Correct Answer: B

• Question 12:

  Which statement about persistent MAC learning is correct?

  A. Trunk ports require MAC addresses to be configured on each VLAN.

  B. Port moves require manual operator intervention.

  C. Access ports must be configured with the no-mac-learning command.

  D. 802.1X must be configured on the port for persistent MAC learning to work.

  Correct Answer: B

• Question 13:

  You notice that currently two MAC addresses are associated with a single access port in the bridge table of one of your EX Series switches.

  What are two explanations for this behavior? (Choose two.)

  A. The native VLAN feature has been associated with the access port.

  B. The mac-move-limit feature has been disabled on the access port,

  C. The access port connects to an IP phone which connects ta a host device

  D. The access port connects to multiple hosts through a rogue device

  Correct Answer: AD

• Question 14:

  Click the Exhibit button.

  

  Which type of route is shown in the exhibit?

  A. generated

  B. direct

  C. aggregate

  D. static

  Correct Answer: A

• Question 15:

  Click the Exhibit button.

  You are implementing the network shown in the exhibit. You must ensure that all users can communicate with each other.

  What are three steps that should be taken in this scenario? (Choose three.)

  A. You must specify the appropriate Layer 3 IRB interface under each VLAN.

  B. You must define all ports as trunk ports and include all VLANs as members.

  C. You must define all ports as access ports and include the appropriate VLAN as a member.

  D. You must configure a single logical IRB interface with an IP address for each of the three networks.

  E. You must create a unique logical IRB interface for each network and assign an IP address within the appropriate network.

  Correct Answer: ACE

• Question 16:

  What are three reasons a router would send out an IS-IS link-state PDU? (Choose three.)

  A. A new external route is imported from BGP.

  B. The router's link to a neighbor goes down.

  C. A new neighbor exists on the link.

  D. The cost of a link to an existing neighbor has changed.

  E. IS-IS sends link-state PDUs at random intervals.

  Correct Answer: BCD

• Question 17:

  You are configuring OSPF and want to ensure that interface ge-0/0/3 is preferred over interface ge-0/0/4.

  Which statement is correct in this scenario?

  A. Configure ge-0/0/3 with a higher metric.

  B. Configure reference bandwidth.

  C. Configure a redistribution policy.

  D. Configure ge-0/0/4 with a higher metric.

  Correct Answer: D

• Question 18:

  Which two statements about RSTP are correct? (Choose two.)

  A. RSTP is backward compatible with STP.

  B. RSTP permits multiple root bridges within a Layer 2 domain.

  C. RSTP permits only a single root bridge within a Layer 2 domain.

  D. RSTP is not backward compatible with STP.

  Correct Answer: AC

• Question 19:

  You are troubleshooting OSPF issues on your device. You run a trace log and receive the error shown in the exhibit.

  

  What would case this error?

  A. missing route policy

  B. stub area mismatch

  C. MD5 authentication error

  D. subnet mismatch

  Correct Answer: B

• Question 20:

  You have a VLAN with two devices acting as a single gateway for hosts.

  In this scenario, which protocol would provide a single gateway IP for the hosts?

  A. VRRP

  B. OSPF

  C. IS-IS

  D. BGP

  Correct Answer: A