JNCIS-ENT Certification JN0-349 Updated Questions

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To become Enterprise Routing and Switching, Specialist (JNCIS-ENT) certified, you must pass the JN0-349 exam, which covers topics such as routing and switching technologies, IPv4 and IPv6 addressing and routing protocols, security, and network management. You should also have hands-on experience with Juniper Networks routing and switching platforms and technologies.

To prepare for the JN0-349 exam, you can study the Juniper Networks Certified Specialist Enterprise Routing and Switching (JNCIS-ENT) certification exam objectives and review the relevant JN0-349 study materials. We newly updated JNCIS-ENT Certification JN0-349 exam questions to help you practice real questions so that you can pass your Juniper JN0-349 exam successfully.

Try free updated JN0-349 practice questions.

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1. Referring to the exhibit, which devices will receive the packet sent by User B?

User A and User D

User C and User D

User C

User C, User A, and User D

2. Click the Exhibit button.

Why is the route shown in the exhibit hidden?

The router cannot reach the protocol next hop.

An MPLS LSP is unavailable.

The router is being rejected through an import policy.

The route is being rejected through an export policy.

3. Which two statements about DIS elections in IS-IS are correct? (Choose two.)

If a priority tie occurs, the router with the higher subnetwork point of attachment (SNPA) value becomes the DI

The router with the higher priority value becomes the DI

The router with the lower priority value becomes the DI

If a priority tie occurs, the router with the lower subnetwork point of attachment (SNPA) value becomes the DI

4. Which OSPF area type receives only the default route from the backbone?

transmit area

totally stubby area

not so stubby area

stub area

5. Click the Exhibit button.

Referring to the exhibit, which statement is correct?

R1 and R2 are elected as DROthers.

R3 has the complete OSPF database.

R3 and R4 have an adjacency state of Full.

R4 is elected as the D

6. Click the Exhibit button.

Referring to the exhibit, which router will be selected as the DR?

7. Which three link-specific fields must match between OSPF neighbors before they form an adjacency over a broadcast medium? (Choose three.)

router priority

hello interval

neighbor

dead interval

options

8. Click the Exhibit button.

Referring to the output shown in the exhibit, which two statements are correct? (Choose two.)

The device is not an AB

The device originated the 192.168. 1. 2 database entry.

The device originated the 192.168. 1. 1 database entry.

The device is an AB

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?

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

Configure reference bandwidth.

Configure a redistribution policy.

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

10. What types of authentication are supported in Junos for OSPF?

Simple password

MD5 checksum

Hitless key chain of MD5 keys/checksums

All of the above

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11. Click the Exhibit button.

Which statement is true about the configuration shown in the exhibit?

Only the next-hop-self export policy will be evaluated when routes are sent to neighbor 172.30. 1.1.

Both the adv-aggregate and adv-custom export policies will be evaluated when routes are sent to neighbor 172.30.2. 1.

Both the adv-aggregate and next-hop-self export policies will be evaluated when routes are sent to neighbor 172.30. 1.1.

Only the adv-custom export policy will be evaluated when routes are sent to neighbor 172.30.2. 1.

12. Which two statements about Layer 2 loop prevention protocols are correct? (Choose two.)

RSTP distributes the current tree topology using the root bridge.

STP can take 30 to 50 seconds to respond to a topology change.

RSTP can take 30 to 50 seconds to respond to a topology change.

STP distributes the current tree topology using the root bridge.

13. Which two statements are true about high availability on Junos devices? (Choose two.)

BFD is faster at detecting failures than default GRE or OSPF timers.

NSR is independent of helper routers to assist the routing platform in restoring routing protocol information.

NSR is dependent on helper routers to assist the routing platform in restoring routing protocol information.

BFD is slower at detecting failures than default GRE or OSPF timers.

14. 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.

15. Exhibit.

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

It is an L3VPN route.

The next hop cannot be resolved.

It has an invalid community.

It is a Martian route.

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

600 seconds

3600 seconds

300 seconds

1800 seconds

17. When electing a DIS in an IS-IS network, what is used to break a priority tie?

highest router ID

highest MAC address

lowest MAC address

lowest router ID

18. 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?

generated routes

RIB groups

forwarding policy

routing policy

19. Click the Exhibit button.

You are building a network and make some configuration changes. While trying to validate these changes, you receive the error shown in the exhibit.

How would you solve this problem?

You must create a new VLAN called all using the VLAN ID of 30.

You must configure the ge-0/0/5.0 interface with family inet instead of family ethernet-switching.

You must configure the port mode as trunk on the ge-0/0/5.0 interface.

You must create two sub-interfaces on ge-0/0/5 with the appropriate VLAN member assigned to each.

20. Which two statements are true about GRE tunnels on Junos devices? (Choose two.)

Only one GRE tunnel can be included for each logical unit.

Multiple GRE tunnels can be included for each logical unit.

GRE interfaces can include multiple logical units.

GRE interfaces can include only a single logical unit.

Page 3 of 3

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

It requires that Bidirectional Forwarding Detection be disabled.

It requires that graceful Routing Engine switchover be enabled.

It is only supported on platforms with redundant control planes.

It is only supported on platforms with redundant power supplies.

22. 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?

RSTP

EVPN

MPLS

BPDU

23. What are three requirements to ensure proper GRE or IP-IP tunnel routing? (Choose three.)

Keepalives must be used on stateless tunneling protocols.

Tunnel endpoints must have a route that directs traffic into the tunnel.

BGP must be used on intermediate devices.

Tunnel endpoints must have a valid route to the remote endpoint.

All intermediary devices must have a route to the tunnel endpoints.