Juniper JN0-648 Actual Free Exam Questions & Community Discussion

Exam Code/Number: JN0-648
Exam Name/Title: Enterprise Routing and Switching, Professional (JNCIP-ENT)
Certification Provider: Juniper
Corresponding Certification: JNCIP-ENT

Exam Questions: 92
Updated On: May 31, 2026

Question #11

which protocol is a multicast routing protocol?

A. PIM

B. BGP

C. IS-IS

D. OSPF

Discussion 0

Correct Answer: A Vote an answer

Question #12

Exhibit.

Your IS-IS adjacency is not established as shown in the exhibit. What is the problem?

A. There is an invalid IPv4 router ID

B. There is an invalid IPv6 router ID

C. There is an MTU mismatch

D. There is an area mismatch

Discussion 0

Correct Answer: D Vote an answer

Question #13

Your network has Junos Fusion configured with MX960 routers as aggregation devices (AD) and QFX5100 switches as satellite devices (SO) Which two statements are coned in this scenario? (Choose two )

A. The AD runs the Junos software for all its connected SDs.

B. All SDs connected to a single AD must use the same software version.

C. SDs are added to the AD by configuring the cascade port on the AD.

D. The Fusion extended ports are configured on the SDs.

Discussion 0

Correct Answer: C,D Vote an answer

Question #14

Which BGP message type contains NLRI information?

A. update

B. keepalive

C. open

D. notification

Discussion 0

Correct Answer: A Vote an answer

Question #15

Exhibit.

You are troubleshooting a route problem in the topology shown in the exhibit. The 10.30.0 0/24 route is not reachable from the R3 router. What would cause this problem?

A. R3 does not have a route to the BGP next hop of 10.30.0.0/24

B. R3 does not have an OSPF route for 10.30.0.0/24

C. R4 is not advertising the 10.30.0.0/24 route to R3

D. R3 does not have an established BGP session with R4.

Discussion 0

Correct Answer: A Vote an answer

Question #16

You have configured CoS on a Junos device. A packet is classified as best effort by a behavior aggregate (BA) classifier, and as expedited forwarding by a multifield (MF) classifier.
Which statement is true in this scenario?

A. The packet will be placed into the queue which is least congested.

B. The packet will be placed in a queue associated with the MF classifier.

C. The packet will be placed in a queue associated with the BA classifier.

D. The packet will be placed into the queue that has the most bandwidth assigned to it.

Discussion 0

Correct Answer: B Vote an answer

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Question #17

What is the correct authentication processing order on EX Series switches when multiple Layer 2 authentication methods are enabled?

A. captive portal-> MAC RADIUS -> 802.1x

B. 802.1x-> captive portal -> MAC RADIUS

C. 802.1x -> MAC RADIUS -> captive portal

D. MAC RADIUS -> 1x -> captive portal

Discussion 0

Correct Answer: C Vote an answer

Question #18

When configuring 802.1X authentication, what are three server fail fallback settings? (Choose three.)

A. permit

B. move

C. log

D. count

E. sustain

Discussion 0

Correct Answer: A,B,E Vote an answer

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Question #19

You are deploying IP phones in your Layer 2 network and are asked to ensure that the switch sends VLAN and CoS information to the IP phones automatically.
In this scenario, which protocol should be used?

A. LLDP_MED

B. PoE

C. LLDP

D. PoE+

Discussion 0

Correct Answer: A Vote an answer

Question #20

You have an IPv4 multicast network configured as PIM-SM.
What must be done before replacing your static RP with auto-RP?

A. Configure auto-RP domains on each router in the network.

B. Enable each router in the network to forward multicast packets.

C. Configure each router in the network as a candidate BSR.

D. Enable sparse-dense mode on each of the routers in the network.

Discussion 0

Correct Answer: D Vote an answer

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