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Enterprise Routing and Switching, Specialist (JNCIS-ENT)

Here you have the best Juniper JN0-349 practice exam questions

Preview the first 5 of 95 questions for free
These questions were last updated on May 30, 2026
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Question 1 of 95

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?

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.

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

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.

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 2 of 95

Each PC and IP phone in your network is connected to a switch using the same port. All incoming data traffic is untagged and belongs to the v10 VLAN, while traffic coming from the IP phones is tagged with a VLAN value of 20 and should belong to the v20 VLAN on your switch.

In this scenario, which statement is correct?

You must enable the voice VLAN feature on the incoming interfaces and assign the v20 VLAN.

You must enable an IRB interface and assign it to the v10 and v20 VLANs.

You must enable LLDP-MED on the incoming interfaces and assign the v20 VLAN.

You must enable the guest VLAN feature on the incoming interfaces and assign the v20 VLAN.

Question 3 of 95

What are three reasons a BGP route would be hidden? (Choose three.)

The AS Path contains a 0.

It is suppressed by a damping policy.

The Local Preference is 0.

The next hop is unreachable.

It is rejected by a firewall term.

Question 4 of 95

Click the Exhibit button.

You have an ESXi host that is connected to ge-0/0/23 on a Juniper EX Series switch. You added a new VM that will also use the same ge-0/0/23 interface. Unfortunately, the new VM is not able to reach external devices.Referring to the exhibit, which command would solve this problem?

set vlans default switch-options interface-mac-limit 4

set vlans default switch-options interface-mac-limit 5

set switch-options interface ge-0/0/23.0 interface-mac-limit 3

clear ethernet-switching recovery-timeout interface ge-0/0/23.0

Question 5 of 95

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?

route A

route B

route C

route D

Question 6 of 95

Which of the following best describes the approach used when configuring high availability across multiple regions to ensure minimal downtime during failover events?

Deploy active-active clusters with cross-region replication and automated DNS failover to maintain service continuity

Use a single-region deployment with periodic manual snapshots for disaster recovery purposes

Configure load balancers in each region with independent database instances and no synchronization

Implement cold standby servers that require manual intervention to activate during outages

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