Juniper JNCIA JN0-321 Questions & Answers

• Question 41:

  A router receives a packet from a neighbor with an MPLS shim header value of 0.What does the router do with this packet?

  A. It performs a label pop operation and an IP lookup.

  B. It performs a label swap operation and an IP lookup.

  C. It sends an error message toward the egress router.

  D. It sends an error message toward the ingress router.

  Correct Answer: A

• Question 42:

  What is the purpose of the RSPV hello interval?

  A. It is the size of the RSVP hello packet

  B. It is how long it maintains RSVP neighbors

  C. It is the length of time between RSPV hello packets

  D. It is how long the router waits before declaring a router to be down

  Correct Answer: C

• Question 43:

  Which three statements about Label Switched Paths (LSPs) are true?

  A. LSPs are bidirectional

  B. LSPs are unidirectional

  C. LSPs can be signaled by CAC.

  D. LSPs can be configured explicity

  E. LSPs can be configured dynamically

  Correct Answer: BCD

• Question 44:

  Which configuration command sets the MPLS interface bandwidth to 15 Mbps?

  A. set bandwidth 15

  B. mpls bandwidth 15

  C. set bandwidth 15000

  D. mpls bandwidth 15000

  Correct Answer: D

• Question 45:

  Which of the following attributes allows a VRF to accept VPN routes from another VRF?

  A. route list

  B. route origin

  C. route target

  D. toute distinguisher

  Correct Answer: C

• Question 46:

  During OSPF adjacency formation, what state is a router in when it is sending LSA header information to its neighbor?

  A. Init

  B. 2Way

  C. ExStart

  D. Exchange

  Correct Answer: D

• Question 47:

  When configuring OSPF on the ERX, what is the default auto cost reference band width value?

  A. 1 Mbps

  B. 10 Mbps

  C. 100 Mbps

  D. 1000 Mbps

  Correct Answer: C

• Question 48:

  What is the purpose of the OSPF hello packet?

  A. advertises reachable networks

  B. acknowledges the receipt of update packets

  C. establishes and maintains neighbor relationships

  D. describes the contents of the link state database

  Correct Answer: C

• Question 49:

  Which Juniper DX service uses 3G Cache?

  A. Forwarder

  B. Redirector

  C. Cluster

  D. Server Load Balancer

  Correct Answer: C

• Question 50:

  Which statement is true when logging in using the WebUI?

  A. Port 80 for HTTP is enabled by default.

  B. Both HTTP and HTTPS are enabled using their standard port values.

  C. Port 443 for HTTPS is enabled by default.

  D. Port 8090 for HTTP is enabled by default.

  Correct Answer: D