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JN0-349 Exam Dumps - Juniper JNCIS-ENT Questions and Answers

Question # 4

Click the exhibit button.

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?

Options:

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 # 5

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

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Question # 6

Which two statements about aggregate routes in the Junos OS are correct? (Choose two.)

Options:

A.

An aggregate route has a default next hop of an IP address.

B.

An aggregate route always shows as active in the routing table.

C.

An active route can contribute only to a single aggregate route.

D.

Only one aggregate route can be configured for each destination prefix.

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Question # 7

You have configured storm control on your network devices. Your network has grown and you no longer have time to investigate each occurrence of a storm control violation. You want to enable a port to automatically be re-enabled after a storm violation.

In this scenario, which Junos OS configuration timeout would accomplish this task?

Options:

A.

Configure the secure access port timeout.

B.

Configure the port error disable timeout.

C.

Configure the BPDU blocking timeout.

D.

Configure the MAG aging table timeout.

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Question # 8

Click the Exhibit button.

Referring to the exhibit, which port on Switch-2 will be selected as the RSTP root port?

Options:

A.

ge-0/0/8.0

B.

ge-0/0/9.0

C.

ge-0/0/10.0

D.

ge-0/0/1.0

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Question # 9

You are configuring OSPF and want to ensure that interface ge-0/0/3 is preferred over interface ge-0/0/4.

Which statement is correct in this scenario?

Options:

A.

Configure ge-0/0/3 with a higher metric.

B.

Configure reference bandwidth.

C.

Configure a redistribution policy.

D.

Configure ge-0/0/4 with a higher metric.

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Question # 10

What are two functions of bridging? (Choose two.)

Options:

A.

blocking

B.

aging

C.

listening

D.

forwarding

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Question # 11

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.

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Question # 12

Which statement about persistent MAC learning is correct?

Options:

A.

Trunk ports require MAC addresses to be configured on each VLAN.

B.

Port moves require manual operator intervention.

C.

Access ports must be configured with the no-mac-learning command.

D.

802.1X must be configured on the port for persistent MAC learning to work.

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Question # 13

What is a characteristic of OSPF ASBRs?

Options:

A.

ASBRs transmit routing information between the backbone and other areas.

B.

ASBRs cannot be part of the backbone and another area at the same time.

C.

ASBRs inject routing information from outside the OSPF domain.

D.

ASBRs link two OSPF areas.

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Exam Code: JN0-349
Exam Name: Enterprise Routing and Switching - Specialist (JNCIS-ENT)
Last Update: May 10, 2025
Questions: 110
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