JN0-348 Online Practice Questions and Answers

What are two benefits of 802.3ad link aggregation? (Choose two.)

A. It increases bandwidth.

B. It ensures symmetrical paths.

C. It simplifies interface configuration.

D. It creates physical layer redundancy.

Which two routes belong to the 172.16.0.0/22 aggregate route? (Choose two.)

A. 172.16.4.0/24

B. 172.16.0.0/24

C. 172.16.5.0/24

D. 172.16.3.0/24

You have configured the router with an IS-IS interface metric of 2048. However, the IS-IS interface metric of 63 is being applied for the interface of this router.

What must you do to enable the larger metric value?

A. Enable wide metrics.

B. Disable narrow metrics.

C. Restart the IS-IS protocol.

D. Enable level 1 IS-IS routing.

Which two OSPF header fields must match to form an adjacency over a broadcast connection? (Choose two.)

A. router priority

B. options

C. hello interval

D. neighbor

You want to advertise only a default route into a new area, which will be called area 7. In this scenario, which configuration statement would solve this problem?

A. user@host# set protocols ospf area 0.0.0.7 nssa default-lsa default-metric 10

B. user@host# set protocols ospf area 0.0.0.7 stub no-summaries

C. user@host# set protocols ospf area 0.0.0.7 stub default-metric 10

D. user@host# set protocols ospf area 0.0.0.7 stub

You are enabling dynamic ARP inspection on an EX4300 switch.

Which service is enabled by default in this scenario?

A. DHCP snooping

B. persistent MAC learning

C. MAC limiting

D. IP Source Guard

Click the Exhibit button.

A recent security audit indicates that peer-to-peer applications are allowed on the guest VLAN and employees may have been using the guest VLAN for this purpose. You deploy the configuration shown in the exhibit, but it does not stop the peer-to-peer traffic.

In this scenario, what must you do to implement the security policy?

A. Implement 802.1X on the guest VLAN

B. Attach the filter to the VLAN

C. Deploy storm control to block unknown unicast traffic

D. Use persistent MAC learning

Click the Exhibit button.

Referring to the exhibit, Router-1 and Router-2 are failing to form an IS-IS adjacency.

What should you do to solve the problem?

A. Remove the overloaded statement from Router-1.

B. Change the IP subnet masks to match on the ge-0/0/2 interfaces of both routers.

C. Change the ISO areas on the lo0 interfaces to match on both routers.

D. Remove the ISO address from ge-0/0/2 on Router-1.

Click the Exhibit button.

Your switches are managed using Junos Space Network Director. You want to secure the switches using a Network Director filter profile. A filter profile containing one term shown in the exhibit is deployed to ports on managed devices.

Which traffic will be accepted by the filter?

A. All traffic will be accepted.

B. Traffic containing a source MAC of 02:85:05:00:00:00/24 will be accepted.

C. Traffic containing a destination MAC of 02:85:05:00:00:00/24 will be accepted.

D. No traffic will be accepted.

Which two elements are used to create the STP bridge ID? (Choose two.)

A. the root port number

B. the bridge priority value

C. the system MAC address

D. the port cost