Juniper Juniper Certifications JN0-343 Questions & Answers

• Question 311:

  You must configure an OSPF area that must not contain any ASBRs and that must not receive any Extern (Type 5) LSAs. This area should be aware of the entire OSPF network, but it should not be aware of routes external to OSPF. Which area type meets these requirements?

  A. not-so-stubby area

  B. totally stubby area

  C. stub area

  D. backbone area

  Correct Answer: C

• Question 312:

  Which three statements are true about tunnels? (Choose three.)

  A. By default, GRE tunnels copy the ToS bits of the inner packet's IP header to the GRE header.

  B. By default, GRE allows fragmentation of packets traversing nodes whose MTU is lower than the de-encapsulating devices.

  C. IP-IP tunnels transport only IP traffic.

  D. GRE and IP-IP tunnels are configured by defining a logical unit for a tunnel interface.

  E. GRE encapsulations and IP-IP encapsulations both add additional overhead to a packet.

  Correct Answer: CDE

• Question 313:

  You have enabled VRRP. You want to prevent preemptive behavior.

  Which two actions must you perform? (Choose two.)

  A. Use an IP address that is not assigned to a router interface.

  B. Use the IP address of one of the routers as the virtual address.

  C. Disable preemption with the no-preempt command.

  D. Set both routers to the same priority value.

  Correct Answer: AC

• Question 314:

  

  Refer to the router configuration shown in the exhibit. To which IS-IS area does this router belong?

  A. Area 49

  B. Area 0100

  C. Area 49.2020

  D. Area 49.2020.0100.1001.0001

  Correct Answer: C

• Question 315:

  You are configuring DHCP snooping to improve security on your network.

  Which configuration enables DHCP snooping on the VLAN?

  A. ethernet-switching-options { secure-access-port { vlan default { examine-dhcp; } } }

  B. ethernet-switching-options { secure-access-port { vlan default { no-examine-dhcp; } } }

  C. ethernet-switching-options { secure-access-port { vlan default { no-dhcp-trusted; } } }

  D. ethernet-switching-options { secure-access-port { vlan default { dhcp-trusted; } } }

  Correct Answer: A

• Question 316:

  Router A and Router B are on the same network segment and in the same OSPF area. Router A receives an LSA header from Router B that is not currently in its own database.

  Which OSPF packet type does Router A send to Router B?

  A. Type 1

  B. Type 2

  C. Type 3

  D. Type 4

  Correct Answer: C

• Question 317:

  A new BGP session has been configured. Upon monitoring the session state, you notice that the session has just transitioned from connect state to active state. What does the active state indicate for this BGP session?

  A. Something is wrong with your configuration. You must check your configuration and try again.

  B. This is the expected behavior. You should wait longer for the BGP session to establish.

  C. The OPEN messages collided. One BGP peer must be configured with the passive option.

  D. No route exists to the neighbors peering address. Check the IGP for reachability.

  Correct Answer: B

• Question 318:

  You are analyzing packet captures on your network. You observe an OSPF Type 7 LSA.

  In which area type did this packet originate?

  A. backbone

  B. stub

  C. totally stubby

  D. not-so-stubby area

  Correct Answer: D

• Question 319:

  Under which hierarchy do you configure OSPF?

  A. [edit protocols ospf]

  B. [edit routing-options]

  C. [edit routing-protocols]

  D. [edit protocols igp]

  Correct Answer: A

  Explanation: 1C.JPR.Parma-VC.001.A1> show configuration protocols ospf inactivE. traceoptions {

  file ospf.txt;

  flag state;

  flag route;

  flag general;

  flag event detail;

  }

  traffic-engineering;

  export ospf-redistribution;

  area 0.0.0.0 {

  interface ae0.0 {

  interface-type p2p;

  hello-interval 3;

  authentication {

  md5 1 key OMMITTED

  }

  }

  interface lo0.0 {

  passive;

  }

  }

• Question 320:

  Which type of port must be an 802.1Q tagged port?

  A. access

  B. LAG

  C. LACP

  D. trunk

  Correct Answer: D