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Note! JN0-349 has been withdrawn. The new exam code is JN0-351

JN0-349 Practice Exam Questions with Answers Enterprise Routing and Switching - Specialist (JNCIS-ENT) Certification

Question # 6

Routet-1 and Router-2 must connect through the Internet using a tunneling technology. Hosts that are connected to Router-1 and Router-2 will be sending traffic up to 1500 bytes. The maximum segment size that is supported across the path is 1520 bytes.

Which tunneling technology will allow this communication to take place?

A.

IP-IP tunnel

B.

GRE tunnel

C.

IPsec VPN tunnel mode

D.

IPsec VPN transport mode

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Question # 7

Which two statements about a unified ISSU are correct? (Choose two.)

A.

It requires that Bidirectional Forwarding Detection be disabled.

B.

It requires that graceful Routing Engine switchover be enabled.

C.

It is only supported on platforms with redundant control planes.

D.

It is only supported on platforms with redundant power supplies.

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Question # 8

Which two statements are true about a unified in-service software upgrade (ISSU)? (Choose two.)

A.

The graceful Routing Engine switchover (GRES) and nonstop active routing (NSR) features must be enabled.

B.

It is possible to take PICs offline or bring them online during a unified ISSU.

C.

Unified ISSU is only supported by the dual Routing Engine platforms.

D.

The master Routing Engine and backup Routing Engine can be running different Junos versions before performing a unified ISSU.

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Question # 9

Exhibit.

JN0-349 question answer

Referring to the exhibit, why is the route for 10.5.5.5 hidden?

A.

It is an L3VPN route.

B.

The next hop cannot be resolved.

C.

It has an invalid community.

D.

It is a Martian route.

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Question # 10

Click the Exhibit button.

Referring to the exhibit, which type of route is displayed?

A.

martian

B.

static

C.

generate

D.

aggregate

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Question # 11

You do not want any spanning tree protocols operating in your environment, and you want to ensure that no BPDUs can be introduced into the environment.

Which statement is true in this scenario?

A.

You must run a spanning tree protocol to block BPDUs.

B.

Incoming BPDUs are blocked by default if a spanning tree protocol is not operating.

C.

You can block BPDUs without running a spanning tree protocol using Layer 3 control.

D.

Incoming BPDUs can only be blocked by the root bridge.

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Question # 12

You are deploying a new switch configuration at a small branch using EX3400 Series switches. You are concerned about loop prevention.

In this scenario, which configuration would you deploy?

A.

RSTP

B.

EVPN

C.

MPLS

D.

BPDU

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Question # 13

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?

A.

show task replication

B.

show bgp summary

C.

show bgp neighbor

D.

show bgp replication

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Question # 14

Click the exhibit button.

JN0-349 question answer

Switch-1 in the exhibit receives a packet from User A with a destination MAC address of 00:26:88:02:74:47.

Which statement in this scenario is correct?

A.

Switch-1 sends the packet out ge-0/0/7 only.

B.

Switch-1 sends the packet out ge-0/0/7 and ge-0/0/8.

C.

Switch-1 sends the packet out ge-0/0/6, ge-0/0/7, ge-0/0/8, and ge-0/0/9.

D.

Switch-1 sends the packet out ge-0/0/7, ge-0/0/8, and ge-0/0/9.

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Question # 15

Which statement describes GRES?

A.

GRES requires NSR to function properly.

B.

GRES provides routing loop protection.

C.

GRES provides hardware-level high availability.

D.

GRES rapidly detects link failures.

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Question # 16

A BGP session shows the state as active.

What does the state indicate in this scenario?

A.

A keepalive message has been received.

B.

The BGP session is fully established and routes are being passed.

C.

The TCP connection is successful, and BGP is waiting for the OPEN message from its peer.

D.

The routes are still trying to establish a TCP connection.

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