JN0-648 Online Practice Questions and Answers

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 in a queue associated with the BA classifier.

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

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

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

Which two statements are correct about a functional ESI LAG interface? (Choose two.)

A. The LACP system ID must be the same.

B. The ESI values must be the same.

C. The LACP system ID must be different.

D. The ESI values must be different.

You notice a mass withdrawal of routes for some of the network hosts. You determine that the link on the ESI interface is down.

Which route type is used in this scenario?

A. Type 2

B. Type 3

C. Type 1

D. Type 5

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.

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, which two statements are true? (Choose two.)

A. There can be more than one OSPF neighbor on the ge-0/0/1 interface.

B. There can be more than one OSPF neighbor on the ge-0/0/0 interface.

C. There is no need for a DR for the ge-0/0/0 interface.

D. The DR election process is not finished for the ge-0/0/0 interface.

Click the Exhibit button.

You are configuring BGP policies for a site with a dual-homed connection as shown in the exhibit. You need all outbound traffic to egress the network through the link to ISP B by default. The ISPs should not be able to override this behavior through BGP attributes.

Which BGP attribute would you modify on the ISP-received routes to accomplish this objective?

A. next-hop

B. origin

C. local preference

D. MED

Click the Exhibit button.

Referring to the exhibit, on which three IS-IS routers will the attached bit be set? (Choose three.)

A. R3

B. R2

C. R6

D. R4

E. R5

Which three types of ports are used for Junos Fusion Enterprise? (Choose three.)

A. extended port

B. authenticated port

C. cascade port

D. uplink port

E. designated port

You are deploying IP phones to a customer site. The IP phones will be installed to share a common access port with the user's desktop computer. You are required to provide a mechanism to place user data traffic and voice traffic in different VLANs for class-of-service application.

How would you implement this solution?

A. Configure flexible VLAN tagging on the user ports with the data and voice VLANs as members.

B. Apply a multifield classifier on the access ports that assigns voice packets to the assured-forwarding class, based on the IP phone manufacturer's MAC OUI.

C. Configure the IP phones to label voice traffic with the DSCP of code point and apply a BA classifier to the access ports to classify voice traffic.

D. Configure VLAN tagging on the IP phones and use the voice VLAN feature on the access ports to assign tagged frames to the voice VLAN and untagged frames to a data VLAN.