Juniper JNCIA JN0-201 Questions & Answers

• Question 41:

  Why would you make a non-backbone area a stub or not-so-stubby area?

  A. to lower the cost of routes advertised by the ABR

  B. to aggregate routes learned from the ABR

  C. to connect a non-contiguous area to the backbone

  D. to decrease the size of the link-state database in that area

  Correct Answer: D

• Question 42:

  Which RP election mechanism can load balance among multiple candidate RPs by default?

  A. bootstrap router

  B. static

  C. auto-RP

  D. sparse-RP

  Correct Answer: A

• Question 43:

  Once the TCP connection is established, which message type initiates the BGP peering process?

  A. Active

  B. Keepalive

  C. Update

  D. Notification

  E. Open

  Correct Answer: E

• Question 44:

  What are three characteristics of RIP? (Choose three.)

  A. uses Bellman-Ford algorithm

  B. supports maximum allowable hop count of 15

  C. uses hop count as the metric

  D. sends updates only when a route metric changes

  E. floods updates to all RIP routers in the network

  Correct Answer: ABC

• Question 45:

  In the following output from a show bgp summary command: Peer AS InPkt OutPkt OutQ Flaps Last Up/Down ???? 192.168.16.1 65412 39 40 0 0 18:41 0/0/0 What do the last three numbers of 0/0/0 indicate?

  A. Established/Received/Damped

  B. Received/Active/Damped

  C. Established/Active/Received

  D. Active/Received/Damped

  Correct Answer: D

• Question 46:

  Two Level 2 routers are exchanging Hello packets with different Area IDs. What occurs between these routers?

  A. An Adjacency forms but traffic is not forwarded.

  B. An Adjacency does not form.

  C. An Adjacency forms.

  D. No IS-IS PDUs are sent.

  Correct Answer: C

• Question 47:

  A network administrator would like to verify the active alarms on interface so-0/0/0.0. Which command displays this information?

  A. show interfaces extensive

  B. show interfaces terse

  C. show alarms extensive

  D. show alarms

  Correct Answer: A

• Question 48:

  Assume that a comparable configuration is applied to your peer in AS 11 and that bi-directional TCP reachability has been achieved. Which EBGP configuration will allow the BGP session to become established?

  A. routing-options{ autonomous-system 11; } protocols { bgp { group external-peer1 { type external; peer-as 11;{ neighbor 10.0.3.6; } }

  B. routing-options { }

  C. routing-options { autonomous-system 64; } protocols {bgp { autonomous-system 64; } protocols { bgp { group external-peer101 { } protocols { bgp { group external-peer101 { peer-as 101; protocols { bgp { group external-peer101 { peer-as 101; neighbor 10.0.3.6; protocols { bgp { group external-peer101 { peer-as 101; neighbor 10.0.3.6; } bgp { group external-peer101 { peer-as 101; neighbor 10.0.3.6; } } group external-peer101 { peer-as 101; neighbor 10.0.3.6; } } peer-as 101; neighbor 10.0.3.6; } } neighbor 10.0.3.6; } } } } }

  D. routing-options{ autonomous-system 64; }

  E. routing-options{ autonomous-system 64; }

  F. routing-options{ autonomous-system 64; } protocols {

  G. routing-options { autonomous-system 11; } protocols {bgp { group external-peer11 { type external; peer-as 64;{ neighbor 10.0.3.6; } group external-peer11 { type external; peer-as 64;{ neighbor 10.0.3.6; } } type external; peer-as 64; { neighbor 10.0.3.6; } } peer-as 64;{ neighbor 10.0.3.6; } } neighbor 10.0.3.6; } }

  H. routing-options{ autonomous-system 64; } protocols { bgp { group external-peer11 { type external; neighbor 10.0.3.6 { peer-as 11; } } }

  Correct Answer: H

• Question 49:

  During initial traffic flow, which routers do dense mode multicast protocols assume want to receive multicast traffic?

  A. only routers with receivers attached

  B. only routers along the core based tree

  C. all routers in the network

  D. all routers along the shortest-path tree

  Correct Answer: C

• Question 50:

  What type of multicast distribution tree is created in both PIM-DM and PIM-SM?

  A. shortest-path tree

  B. core-based tree

  C. receiver-based tree

  D. root-based tree

  Correct Answer: A