Juniper Juniper Certifications JN0-343 Questions & Answers

• Question 351:

  A GRE tunnel is established between two routers. When a user on one end sends traffic with a large packet size to a user on the remote end, the packet never arrives. However, the problem does not exist for smaller packets. What is the problem?

  A. The tunnel is down on the remote end.

  B. The don't-fragment bit is set on the traffic.

  C. GRE tunnels do not support IP traffic.

  D. No dynamic routing protocol exists to handle the traffic.

  Correct Answer: B

• Question 352:

  A company's Junos-based router has two EBGP peers and receives two BGP update messages with the following information:

  Peer A - AS path [ 65001 64513 12 ] ; MED 67 ; origin value 1

  Peer B - AS path [ 65002 64513 12 ] ; MED 70 ; origin value 2

  Assuming default values, how will the company router react to these updates?

  A. The path through Peer A will be preferred for all traffic to that destination.

  B. The path through Peer B will be preferred for all traffic to that destination.

  C. The paths will be load balanced to that destination based on a Layer 3 hash.

  D. The company router marks the routes as hidden to that destination because the MED exceeds 63.

  Correct Answer: A

• Question 353:

  Layer 2 interfaces can be assigned to operate in which two modes? (Choose two.)

  A. route

  B. access

  C. trunk

  D. distribution

  Correct Answer: BC

• Question 354:

  You have created an IP-IP tunnel which will traverse interface at-0/1/0 and you would like to make sure that the tunnel is operational. Which operational-mode command should you use to verify that the IP-IP tunnel interface is up?

  A. show ip tunnels interfaces

  B. show interfaces at-0/1/0 terse

  C. show interfaces ip-0/0/0 terse

  D. show ip-0/0/0 interfaces terse

  Correct Answer: C

• Question 355:

  What is a difference between a generated route and an aggregated route?

  A. Generated routes have a higher preference by default.

  B. Generated routes use a next hop of discard.

  C. Generated routes have a lower preference by default.

  D. Generated routes use a next hop of a contributing route.

  Correct Answer: D

• Question 356:

  

  In the exhibit, how many Level 1 adjacencies does Montreal have?

  A. 2

  B. 3

  C. 4

  D. 5

  Correct Answer: B

• Question 357:

  Which two packet types are handled solely by the RE within an EX4200? (Choose two.)

  A. OSPF hellos

  B. DHCP relay

  C. STP BPDUs

  D. IP multicast traffic

  Correct Answer: AC

• Question 358:

  Which statement describes an OSPF area for which no-summaries is configured?

  A. The ABR does not generate any Summary (Type 3) LSAs towards the backbone.

  B. The ABR does not generate any Summary (Type 3) LSAs for other OSPF areas.

  C. The area does not summarize external routes generated within its area.

  D. The area does not accept or create summaries of any kind.

  Correct Answer: B

• Question 359:

  

  Router-A and Router-B shown in the exhibit are peering between their loopback interfaces. Which operational command on Router-A do you use to display all the BGP routes received from Router-B?

  A. show route receive-protocol bgp 10.10.10.2 all

  B. show route receive-protocol bgp 10.10.10.1 all

  C. show bgp rib-in neighbor 10.10.10.1

  D. show bgp receive-protocol bgp 10.10.10.2

  Correct Answer: A

• Question 360:

  You want to change the BGP next hop to ensure that internal routers have reachability to networks learned from external peers. Which configuration excerpt applied on the perimeter router achieves this objective?

  A. protocols { bgp { group internal { type internal; local-address 10.10.10.1; neighbor 10.10.20.1 next-hop-self; neighbor 10.10.30.1 next-hop-self; neighbor 10.10.40.1 next-hop-self; } } }

  B. protocols { bgp { group internal { type internal; local-address 10.10.10.1; export change-next-hop; neighbor 10.10.20.1;

  neighbor 10.10.30.1;

  neighbor 10.10.40.1;

  }

  }

  }

  policy-options {

  policy-statement change-next-hop {

  term 1 {

  from {

  protocol bgp;

  external;

  }

  then {

  next-hop self;

  }

  }

  }

  }

  C. protocols { bgp { group internal { type internal; local-address 10.10.10.1; export change-next-hop; neighbor 10.10.20.1; neighbor 10.10.30.1; neighbor 10.10.40.1; } } } policy-options { policy-statement change-next-hop { term 1 { from { protocol bgp; route-type external; } then { next-hop self; } } } }

  D. protocols { bgp { group ext { type external; export change-next-hop; peer-as 111; neighbor 10.10.20.1; } } } policy-options { policy-statement change-next-hop { term 1 { from { protocol bgp; } then { next-hop self; } } } }

  Correct Answer: C