JN0-648 Online Practice Questions and Answers

You have an MX960 configured as a Fusion aggregation device (AD) and two QFX5100 switches as satellite devices (SD). You have configured local-switchingfor each SD. A packet with an unknown MAC address is received on one of the SD extended ports.

Which statement is correct in this scenario?

A. The packet is dropped and a reject message is sent out to the port where it was received.

B. The packet is silently discarded and a reject message is sent to the AD.

C. The packet is flooded out of all the ports on the SD except the one where it was received.

D. The packet is sent to the AD to be processed and forwarded.

Click the Exhibit button.

Referring to the exhibit, how is R5 able to learn the networks that exist within the NSSA?

A. R5 learns those networks from Type 3 LSAs advertised by R2.

B. R5 learns those networks from Type 3 LSAs advertised by R3.

C. R5 does not learn those networks and uses a default route advertised by R3 instead.

D. R5 does not learn those networks but uses a default route advertised by R2 instead.

Click the Exhibit button.

There is a functioning OSPFv3 neighborship between Router-1 and Router-2 over the ge-0/0/1 link. However, the 172.100.100.0/24 and 172.101.101.100/24 routes are not being shared through OSPFv3.

Referring to the configuration shown in the exhibit, which two actions must you take to solve the problem? (Choose two.)

A. Add interface ge-0/0/1 under the IPv4 unicast realm for both routers.

B. Add the IPv6 family protocol under ge-0/0/2 for both routers.

C. Add the lo0 interface under OSPFv3 for both routers.

D. Add interface ge-0/0/2 under OSPFv3 for both routers.

You have multiple BGP routes to the same prefix with equal local-preference values and AS-path lengths. In this scenario, which route will be preferred in the route selection process?

A. The route with the least preferred origin value.

B. The route with the lowest MED value.

C. The route with the most preferred origin value.

D. The route with the highest MED value.

Click the Exhibit button.

Referring to the exhibit, you configured a new multifield classifier for the ge-1/2/0 interface to move ICMP traffic to the best-effort queue and traffic from 192.168.20.0/24 to the expedited forwarding queue. You received notice that some applications are not working after the change.

Which configuration change will remedy the problem?

A. Option A

B. Option B

C. Option C

D. Option D

Click the Exhibit button.

Referring to the exhibit, you must advertise the 100.0.0.0/16 routes from AS1 to AS2, but R2 is not advertising any BGP routes to R5.

Why is this happening in this scenario?

A. The IBGP routes will not be advertised because you must use a policy to advertise IBGP routes.

B. The IBGP routes are not active and EBGP will advertise only active routes.

C. The IBGP routes will not be advertised because the AS path shows as incomplete.

D. The IBGP routes are not active because the next hop is not reachable.

Your company has expanded into office space across the street. The new office space has a single Ethernet connection connected to an unmanaged switch. You must sort traffic based on the IP address into different VLANs once the traffic arrives on your EX Series switches.

Which mechanism would you use to accomplish this task?

A. MVRP

B. filter-based VLANs

C. Q-in-Q tunneling

D. dynamic VLANs

Your network is configured for EVPN load balancing on three different access switches. During an outage, you notice that not all interfaces are receiving traffic as expected.

Which two requirements would you validate to identify this problem? (Choose two.)

A. Validate that the same esi value is configured on multiple interfaces on all switches.

B. Validate that the all-active flag is configured for multiple interfaces on each switch.

C. Validate that all-active is configured for only one interface per switch.

D. Validate that the same esi value is only configured on one interface per switch.

Your IPv4 multicast network uses different MX Series routers for the source DR and the PIM sparse-mode RP.

What is required before PIM register messages are exchanged between the DR and RP routers?

A. Add a tunnel services PIC to the RP router.

B. Add an adaptive services PIC to the DR router.

C. Enable tunnel services on the DR and RP routers.

D. Configure PIM encapsulation on the DR and RP routers.

Click the Exhibit button.

You are configuring the PVLAN feature on your switches. The PVLAN will span the two EX Series switches shown in the exhibit.

Which three configuration parameters must be enabled on the ports connecting the two switches? (Choose three.)

A. family inet

B. family ethernet-switching

C. inter-switch-link

D. interface-mode trunk

E. interface-mode access