Juniper Juniper Certifications JN0-343 Questions & Answers

• Question 421:

  When two OSPF routers on a broadcast network are ready to exchange database descriptor packets, which router is responsible for setting the initial sequence number?

  A. the DR

  B. the BDR

  C. the router with the higher RID

  D. the router with the lower RID

  Correct Answer: C

• Question 422:

  What is a requirement for link aggregation?

  A. Member links must be on continuous ports.

  B. Member links must be on the same switch in a Virtual Chassis.

  C. The speed of the member links must be the same.

  D. LACP must be configured.

  Correct Answer: C

• Question 423:

  You execute the operational-mode command show ospf neighbor and notice that one neighbor relationship remains in the exStart state. What causes this behavior?

  A. The area IDs do not match on each end of the link.

  B. The authentication parameters do not match on each end of the link.

  C. The dead interval does not match on each end of the link.

  D. The MTU does not match on each end of the link.

  Correct Answer: D

• Question 424:

  On a broadcast network, which three statements are true about IS-IS adjacencies? (Choose three.)

  A. Peers send full copies of databases at regular intervals.

  B. IIH PDUs are used as a keep alive mechanism.

  C. Peers can request missing link-state information.

  D. An elected DIS retains its status as long as the device remains up.

  E. Peers acknowledge receipt of link-state updates.

  Correct Answer: BCE

• Question 425:

  You want to alter the factory-default storm control configuration so that interfaces on which the storm control level is exceeded are temporarily shut down for five minutes. Which configuration excerpt accomplishes this objective?

  A. {master:0}[edit ethernet-switching-options] user@Switch-1# show storm-control { action-shutdown; interface all; error-disable { disable-timeout 5; } }

  B. {master:0}[edit ethernet-switching-options] user@Switch-1# show port-error-disable { disable-timeout 300; } storm-control { action-shutdown; interface all; }

  C. {master:0}[edit ethernet-switching-options] user@Switch-1# show storm-control { shutdown-action; interface all; error-disable { disable-interval 5; } }

  D. {master:0}[edit ethernet-switching-options] user@Switch-1# show port-error-disable { disable-interval 300; } storm-control { shutdown-action; interface all; }

  Correct Answer: B

• Question 426:

  Which statement is true about IS-IS hello (IIH) PDUs?

  A. The same IIH PDU is used for both point-to-point and broadcast networks.

  B. IIH PDUs maintain the link-state database synchronization.

  C. IIH PDUs provide the priority value used in DIS election.

  D. IIH PDUs are transmitted only at the beginning of adjacency establishment.

  Correct Answer: C

• Question 427:

  Which BGP configuration option is required when peering with an IBGP neighbor using loopback addresses?

  A. local-address

  B. local-interface

  C. update-source D. source-address

  Correct Answer: A

• Question 428:

  You configure a metric of 200 on an IS-IS enabled interface on Router-1. When you examine the routing table entry for that link on another IS-IS device, you see a metric of 67. What would explain this behavior?

  A. Router-1 is sending both standard and wide metrics.

  B. Router-1 is sending only wide metrics.

  C. Router-1 has a metric multiplier set.

  D. Router-1 has a configured reference bandwidth.

  Correct Answer: A

• Question 429:

  You are viewing the output of the operational-mode command show interfaces ge-0/0/4 on an EX Series switch in which no ether-options are configured for the ge-0/0/4 interface. Which two default settings are listed in the output? (Choose two.)

  A. SpeeD. Auto

  B. SpeeD. 1000mpbs

  C. Duplex: Auto

  D. Duplex: Full-Duplex

  Correct Answer: AC

• Question 430:

  What is the proper ingress processing sequence for firewall filters on an EX Series switch?

  A. router filter, port filter, VLAN filter

  B. port filter, VLAN filter, router filter

  C. router filter, VLAN filter, port filter

  D. VLAN filter, port filter, router filter

  Correct Answer: B