Juniper JN0-648 JNCIP-ENT Exam Questions Instant Access

Question 1

Which two statements are true about IS-IS levels? (Choose two.)

ALevel 2 systems do not advertise Level 2 routes into a Level area by default.

BLevel 2 systems must use the loopback address as a part of the ISO network address.

CLevel 1 system only from adjacencies with other systems that have different area IDs.

DLevel 1 systems use a default route to reach AS external routes located in other areas.

Answer : A, D

https://www.juniper.net/documentation/en_US/junos/topics/example/example-configuring-is-is-route-leaking-L2-to-L1.html

'By default, IS-IS protocol leaks routing information from a Level 1 area to a Level 2 area. However, to leak routing information from a Level 2 area to a Level 1 area, an export policy must be explicitly configured.'

https://www.juniper.net/documentation/en_US/junos/topics/example/isis-multi-level.html

'An IS-IS Level 2 area is analogous to the OSPF backbone area (0), while a Level 1 area operates much like an OSPF totally stubby area, in that a default route is normally used to reach both inter-level and AS external routes.'

Question 2

Packets enter a Juniper device and are classified as best effort. During the processing of the packet, the classification of the packets is changed to expedited forwarding by a multi-field classifier. The device is using the default CoS policies

Which statement is true in this scenario?

AThe packet is forwarded according to the new packet classification, and the DSCP bits are rewritten to the new class.

BThe packet is forwarded according to the new packet classification, and the DSCP bits do not change.

CThe packet is forwarded according to the original packet classification, and the DSCP bits do not change.

DThe packet is forwarded according to the original packet classification, and the DSCP bits are rewritten to the new class.

Answer : B

Question 3

Exhibit.

YourNet is learning the 210.210.40.0/24 route from Provider A and Provider B YourNet would like to forward traffic destined to the 210.210.40.0/24 networking using Provider B.

Referring to the exhibit, how would you accomplish this task?

AAdd the well-known no-export community to the routes learned through R2.

BApply an export policy to R1's IBGP peers to set a higher local preference.

CAdd the well-known no-export community to the routes learned through R1.

DApply an export policy to R2's IBGP peers to set a Their local preference.

Answer : D

Question 4

Exhibit.

You are implementing CoS for a custom application that is labeling its packets with DSCP code-point 101111. You have applied the configuration shown in the exhibit, but not that while some custom application traffic ingressin on ge-0/0/1 transits the SRX Series device successfully, packets ingressing all other ge-* interfaces are being dropped.

Which action should you take to solve this problem?

AConfigure a scheduler and scheduler map for expedited-forwarding and apply to all interfaces.

BModify the BA classifier to assign code point 101111 to loss priority low.

CRemove the BA classifier from all ge-interfaces.

DApply the rate-limit-ef policer to all ge-interfaces.

Answer : D

Question 5

Which two statements about BGP communities are true? (Choose two.)

AA prefix can only belong to one community.

BA prefix can belong to more than community.

CA community is not a transitive attribute.

DA BGP device can set, append, or modify the community of a route.

Answer : B, D

Question 6

which protocol is a multicast routing protocol?

AOSPF

BBGP

CPIM

DIS-IS

Answer : C

Question 7

Exhibit.

Referring to the configuration shown in the exhibit, how many of the routes received from 10.0.0.2 will be active in the routing table?

Answer : C

Juniper Enterprise Routing and Switching, Professional Exam JN0-648 JNCIP-ENT Exam Questions