JN0-348 Online Practice Questions and Answers

Your network connections to the Internet through two different ISPs using EBGP. You must ensure that ISP1 is the primary path used for all traffic entering your network while using ISP2 as a backup path.

In this scenario, which statement is correct?

A. You should use a lower MED value on routes sent to ISP1.

B. You should assign a higher local preference on routes that you are sending to ISP1.

C. You should change the next hop for all routers sent to ISP2.

D. You should prepend your local AS number three times on routes that you are sending to ISP2.

Which two situations would cause dynamic ARP inspection to drop traffic? (Choose two.)

A. if no IP-to-MAC address entry exists in the DHCP snooping database

B. if the IP address in the ARP packet is deemed invalid

C. if the requested MAC address exceeds the configured limit on the port

D. if the ARP packet comes from a port that has been configured as trusted

In which two STP states is a port active and a MAC address learned? (Choose two.)

A. blocking

B. forwarding

C. disabled

D. learning

What are two characteristics of IS-IS CSNPs? (Choose two.)

A. IS-IS CSNPs contain header information for all link-state PDUs.

B. IS-IS CSNPs are used to request a copy of a missing link state PDU.

C. IS-IS CSNPs are used to maintain the link-state database synchronization.

D. IS-IS CSNPs contain header information for specific requested link-state PDUs.

What are two methods for reducing the size of an OSPF link-state database? (Choose two.)

A. Use unique router IDs where possible.

B. Use identical link metrics where possible.

C. Use point-to-point interface types where possible.

D. Use stub areas where possible.

Click the Exhibit button.

You manage the Layer 2 network shown in the exhibit. You experience a failure on the ge-0/0/0 link between Switch-1 and Switch-2.

Which statement is correct about the expected behavior?

A. Switch-2 will remove itself from the RSTP topology

B. Switch-2's ge-0/0/2 port role and state will transition to root and forwarding

C. Switch-2 will become the root bridge for a separate RSTP topology

D. Switch-2's ge-0/0/2 port role and state will remain as designated and forwarding

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.

Which statement is true about IP-IP tunnels?

A. The time-to-live value of the original packet is decremented.

B. IP-IP tunnels are protocol agnostic.

C. The packet is encapsulated unchanged before entering the tunnel.

D. The packet header is replaced before entering the tunnel.

Click the Exhibit button.

Referring to the exhibit, the local router should have an IS-IS adjacency with a neighboring router, but the adjacency never establishes correctly.

What should you do to solve the problem?

A. Disable level 2 for the interfaces.

B. Disable level 1 for the interfaces.

C. Disable wide metrics.

D. Change the local IS-IS area ID to 49.0002.

Which mechanism is used to share routes between routing tables?

A. RIB groups

B. routing instances

C. forwarding instances

D. filter-based forwarding