Juniper JN0-349 Online Practice Questions and Exam Preparation

Juniper JN0-349 Online Questions & Answers

• Question 1:

  What are two interarea OSPF LSA types? (Choose two.)

  A. Type 1 router LSAs
  B. Type 2 network LSAs
  C. Type 3 summary LSAs
  D. Type 4 ASBR summary LSAs
  C. Type 3 summary LSAs
  D. Type 4 ASBR summary LSAs

• Question 2:

  Which two port security mechanisms rely on an accurate DHCP snooping database to operate correctly? (Choose two.)

  A. IP source guard
  B. persistent MAC learning
  C. MACsec
  D. dynamic ARP inspection
  A. IP source guard
  D. dynamic ARP inspection

• Question 3:

  By default, how long will a learned MAC address be retained in the bridge table on an EX Series switch?

  A. 600 seconds
  B. 3600 seconds
  C. 300 seconds
  D. 1800 seconds
  C. 300 seconds

• Question 4:

  Which two statements are true about GRE tunnels on Junos devices? (Choose two.)

  A. Only one GRE tunnel can be included for each logical unit.
  B. Multiple GRE tunnels can be included for each logical unit.
  C. GRE interfaces can include multiple logical units.
  D. GRE interfaces can include only a single logical unit.
  A. Only one GRE tunnel can be included for each logical unit.
  C. GRE interfaces can include multiple logical units.

• Question 5:

  Click the Exhibit button.

  

  A routing table contains multiple BGP routes to the same destination prefix. The route preference is the same for each route. Referring to the exhibit, which route would be selected?

  A. route B
  B. route D
  C. route A
  D. route C
  B. route D

• Question 6:

  Which two statements about BPDU protection are correct? (Choose two.)

  A. By default, you must manually clear a BPDU error condition when using BPDU protection.
  B. BPDU protection prevents unauthorized switches from connecting to and participating in your spanning tree topology.
  C. By default, BPDU protection prevents the root bridge from communicating with other STP members unless it receives a superior BPDU first.
  D. BPDU protection requires that STP or RSTP is configured on the switch.
  A. By default, you must manually clear a BPDU error condition when using BPDU protection.
  B. BPDU protection prevents unauthorized switches from connecting to and participating in your spanning tree topology.

• Question 7:

  Click the Exhibit button.

  

  Referring to the exhibit, which port on Switch-2 will be selected as the RSTP root port?

  A. ge-0/0/8.0
  B. ge-0/0/9.0
  C. ge-0/0/10.0
  D. ge-0/0/1.0
  C. ge-0/0/10.0

• Question 8:

  What types of authentication are supported in Junos for OSPF?

  A. Simple password
  B. MD5 checksum
  C. Hitless key chain of MD5 keys/checksums
  D. All of the above
  D. All of the above

• Question 9:

  You notice that currently two MAC addresses are associated with a single access port in the bridge table of one of your EX Series switches. What are two explanations for this behavior? (Choose two.)

  A. The native VLAN feature has been associated with the access port.
  B. The mac-move-limit feature has been disabled on the access port,
  C. The access port connects to an IP phone which connects ta a host device
  D. The access port connects to multiple hosts through a rogue device
  A. The native VLAN feature has been associated with the access port.
  D. The access port connects to multiple hosts through a rogue device

• Question 10:

  Which statement about persistent MAC learning is correct?

  A. Trunk ports require MAC addresses to be configured on each VLAN.
  B. Port moves require manual operator intervention.
  C. Access ports must be configured with the no-mac-learning command.
  D. 802.1X must be configured on the port for persistent MAC learning to work.
  B. Port moves require manual operator intervention.