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  4. JN0-349 - Enterprise Routing and Switching - Specialist (JNCIS-ENT)

Juniper JN0-349 Enterprise Routing and Switching - Specialist (JNCIS-ENT) Exam Practice Test

Demo: 16 questions
Total 110 questions
Get JN0-349 Full Access Download JN0-349 PDF

Enterprise Routing and Switching - Specialist (JNCIS-ENT) Questions and Answers

Question 1

Click the Exhibit button.

Referring to the exhibit, which statement is correct?

Options:

A.

R1 and R2 are elected as DROthers.

B.

R3 has the complete OSPF database.

C.

R3 and R4 have an adjacency state of Full.

D.

R4 is elected as the DR.

Question 2

Click the Exhibit button.

Referring to the exhibit, which statement is correct?

Options:

A.

The router is acting as the DR.

B.

The router is acting as the BDR.

C.

The router is acting as a DROther.

D.

The router is not able to establish an adjacency.

Question 3

Which statement describes BFD?

Options:

A.

BFD rapidly detects link failures.

B.

BFD provides route loop protection.

C.

BFD provides broadcast storm protection.

D.

BFD provides high availability with multiple Routing Engines.

Question 4

You must limit access to a printer with a persistent DHCP address of 2001:db8:0000:50::10/64 in VLAN v50 to users assigned to VLAN v50 only.

Which action would satisfy this requirement?

Options:

A.

Implement persistent MAC learning to ensure that 2001:db8:0000:50::10 is allocated properly.

B.

Implement a firewall filter on the IRB interface for VLAN v50, blocking traffic to/from 2001:db8:0000:50::10.

C.

Implement a firewall filter on the VLAN v50, blocking traffic to/from 2001:db8:0000:50::10.

D.

Implement DHCP snooping on VLAN v50 to ensure that 2001:db8:0000:50::10 is allocated properly.

Question 5

What are three valid BGP message types? (Choose three.)

Options:

A.

refresh

B.

hello

C.

database descriptor

D.

keepalive

E.

update

Question 6

Which two statements about a Virtual Chassis are correct? (Choose two.)

Options:

A.

A Virtual Chassis is managed using a single virtual console port.

B.

You must use the same EX Series switch for all members in a Virtual Chassis.

C.

All members in a Virtual Chassis must be running the same Junos version.

D.

Each device must be managed separately.

Question 7

Your router is learning the 172.25.11.0/24 prefix from both the BGP and OSPF protocols. A routing policy is configured on your device to advertise the prefix to an established BGP peer but the peer is not receiving the prefix. You want to allow the prefix to be advertised to the BGP peer.

What should you do on this router to satisfy this requirement?

Options:

A.

Enable the automatic removal of peer AS information from the prefix.

B.

Enable the advertisement of inactive BGP routes.

C.

Enable the automatic removal of private AS numbers from the prefix.

D.

Enable the automatic refreshing of BGP routes.

Question 8

You are asked to configure filter-based forwarding (FBF) to forward traffic sourced from a specific subnet to a webserver.

In this scenario, which mechanism is used to add interface routes to the forwarding routing instance used in FBF?

Options:

A.

generated routes

B.

RIB groups

C.

forwarding policy

D.

routing policy

Question 9

You are running a Virtual Chassis with nonstop routing enabled. You want to confirm that the BGP routing table synchronization has completed on the backup Routing Engine.

Which command will show you this information?

Options:

A.

show task replication

B.

show bgp summary

C.

show bgp neighbor

D.

show bgp replication

Question 10

Click the Exhibit button.

A routing table contains multiple BGP routes to the same destination prefix. The route preference is the same for each route.

Referring to the exhibit, which route would be selected?

Options:

A.

route B

B.

route D

C.

route A

D.

route C

Question 11

Click the Exhibit button.

Referring to the exhibit, what does the asterisk(*) following the ge-0/0/5.0 interface indicate?

Options:

A.

It indicates the interface is not active.

B.

It indicates the interface is a trunk port.

C.

It indicates the interface is an access port.

D.

It indicates the interface is active.

Question 12

Your BGP router receives routes from two upstream ISPs: ISP A and ISP B.

In this scenario, which change would you make to prefer routes from ISP A?

Options:

A.

Set the local-preference attribute for all routes received from ISP A to 200 while all routes received from ISP B use the default local-preference value of 100.

B.

Prepend the AS path to all routes received from ISP A while all routes received from ISP B use the default AS path value.

C.

Change the MED value for all routes received from ISP A to 1 while all routes from ISP B remain configured with no MED value.

D.

Set the local-preference attribute for all routes received from ISP A to 50 while all routes received from ISP B use the default local-preference value of 100.

Question 13

You are troubleshooting OSPF issues on your device. You run a trace log and receive the error shown in the exhibit.

What would case this error?

Options:

A.

missing route policy

B.

stub area mismatch

C.

MD5 authentication error

D.

subnet mismatch

Question 14

Click the Exhibit button.

Which two statements about the configuration shown in the exhibit are correct? (Choose two.)

Options:

A.

Two next-hop interfaces should appear in the routing table for the 172.20.112.0/24 prefix.

B.

Multiple equal-cost next hops are installed in the forwarding table for the 192.168.2.0/30 prefix.

C.

The route preference is the same for each static route.

D.

Only the selected next-hop interface should appear in the forwarding table for the 172.20.112.0/24 prefix.

Question 15

By default, how long will a learned MAC address be retained in the bridge table on an EX Series switch?

Options:

A.

600 seconds

B.

3600 seconds

C.

300 seconds

D.

1800 seconds

Question 16

Click the Exhibit button.

Referring to the exhibit, which port will be selected as the RSTP root port on Switch-4?

Options:

A.

ge-0/0/13.0

B.

ge-0/0/8.0

C.

ge-0/0/9.0

D.

ge-0/0/12.0

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Demo: 16 questions
Total 110 questions
Get JN0-349 Full Access Download JN0-349 PDF