Juniper JNCIA JN0-321 Questions & Answers

• Question 21:

  Which CLI command displays FECN and BECN information on a Frame Relay interface configured on serial interface 4/0:3/1?

  A. show frame relay pvc

  B. show frame relay summary

  C. show frame relay subinterface

  D. show frame relay interface serial 4/0:3/1

  Correct Answer: A

• Question 22:

  You would like to configure an Ethernet interface with the following characteristics: Fast Ethernet port 3/1 10.10.10.1/24 VLAN 100 Which set configuration commands accurately completes this task?

  A. interface fastethernet 3/1 vlan id 100 encap vlan ip address 10.10.10.1.255.255.255.0

  B. interface fastethernet 3/1 ip address 10.10.10.1.255.255.255.0 encap vlan vlan id 100

  C. interface fastethernet 3/1 encap vlan interface fast 3/1.1 vlan id 100 ip address 10.10.10.1.255.255.255.0

  D. interface fastethernet 3/1 interface fast 3/1.1 encap vlan vlan id 100 ip address 10.10.10.1.255.255.255.0

  Correct Answer: C

• Question 23:

  Hotcerts .com's application requires 30 virtual paths on a four port OC3 card. Which command allows this functionality?

  A. atm vp 30

  B. atm vcpervp 30

  C. atm vcpervp 32768

  D. atm vppervc 32768

  Correct Answer: C

• Question 24:

  You would like to configure a channelized OC3 interface with the following properties:

  Slot 4 Port 0 Path Channel 3 Virtual Tributary Group 4 Virtual Tributary 1 times lots 112

  Which set of configuration commands accomplishes this goal?

  A. controller sonnet 4/0path 1 oc1 3path 1 ds1 1/4/1 vt15path 1 ds1 1/4/1/channel 1group 1 timeslot 112

  B. controller sonnet 4/0path 3 oc1 1path 3 ds1 1/4/1 vt15path 3 ds1 1/4/1/channel 1group 1 timeslot 112

  C. controller sonnet 4/0path 1 oc1 3path 1 ds1 1/4/1 vt15path 1 ds1 1/4/1/channel 1group 1 timeslot 112

  D. controller sonnet 4/0path 3 oc1 1path 3 ds1 1/4/1 vt15path 3 ds1 1/4/1/channel 1group 1 timeslot 112

  Correct Answer: A

• Question 25:

  BGP route dampening is configured on a BGP router. Whose routing behavior is affected by this configuration?

  A. upstream EBGP neighbors

  B. downstream EBGP neighbors

  C. upstream IBGP neighbors learned by IBGP peers

  D. downstream IBGP neighpors learned by IBGP peers

  Correct Answer: A

• Question 26:

  What are two uses of the AS Path attribute?

  A. route selection

  B. loop avoidance

  C. determining equal cost paths for reach ability

  D. defining the application of other BGP attributes

  Correct Answer: AB

• Question 27:

  Which types of connection must be established before BGP peers can exchange update messages?

  A. SSL

  B. UDP

  C. TCP

  D. SSH

  Correct Answer: C

• Question 28:

  Which packet is sent in response to a BGP Open packet?

  A. hello

  B. TCP ACK

  C. Keep alive

  D. BGP open

  E. Notification

  Correct Answer: C

• Question 29:

  What two BGP attributes are incorporates for loop prevention within an AS using a route reflection configuration?

  A. AS Path

  B. Next Hop

  C. Cluster List

  D. Originator ID

  E. Reflector List

  Correct Answer: CD

• Question 30:

  Which message is used to transport routing information between BGP peers?

  A. Open

  B. Active

  C. Update

  D. Keep alive

  E. Notification

  Correct Answer: C