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JN0-349 Enterprise Routing and Switching - Specialist (JNCIS-ENT) Questions and Answers

Questions 4

Click the Exhibit button.

JN0-349 Question 4

You are attempting to set up IS-IS on a device that has two interfaces (ge-0/0/1.0 and ge-0/0/2.0) in Level 1 and one interface (ge-0/0/0.0) in Level 2; however, it does not participate in either level.

Referring to the exhibit, what is the problem?

Options:

A.

The ge-0/0/0.0 interface must have the Level 1 disable statement removed.

B.

The lo0 interface must participate in both levels.

С. One of the interfaces requires a network entity title on it.

C.

All of the interfaces must have the level disable statement removed.

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Questions 5

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

Options:

A.

router priority

B.

hello interval

C.

neighbor

D.

dead interval

E.

options

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Questions 6

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

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Questions 7

Which two statements about BPDU protection are correct? (Choose two.)

Options:

A.

By default, you must manually clear a BPDU error condition when using BPDU protection.

B.

BPDU protection prevents unauthorized switches from connecting to and participating in your spanning tree topology.

C.

By default, BPDU protection prevents the root bridge from communicating with other STP members unless it receives a superior BPDU first.

D.

BPDU protection requires that STP or RSTP is configured on the switch.

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Questions 8

Click the exhibit button.

JN0-349 Question 8

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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Questions 9

Click the Exhibit button.

JN0-349 Question 9

You have created a GRE tunnel as shown in the exhibit. The router with tunnel endpoint A is dropping the packets originating from User A and destined to User B.

What would cause this problem?

Options:

A.

Endpoint A has the internet-options gre-path-mtu-discovery parameter enabled.

B.

User A requested fragmentation and Endpoint A has the clear-dont-fragment-bit parameter enabled.

C.

Endpoint A is missing a policy statement that allows User A’s traffic into the tunnel.

D.

User A is sending maximum size default Ethernet frames with the DF bit enabled.

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Questions 10

Click the Exhibit button.

JN0-349 Question 10

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.

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Questions 11

What BGP attribute is mostly likely to influence a remote AS that you do not peer with?

Options:

A.

This is not possible given the local scope of BGP

B.

AS path

C.

MED

D.

Local preference

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Questions 12

Click the Exhibit button.

JN0-349 Question 12

Why is the route shown in the exhibit hidden?

Options:

A.

The router cannot reach the protocol next hop.

B.

An MPLS LSP is unavailable.

C.

The router is being rejected through an import policy.

D.

The route is being rejected through an export policy.

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Questions 13

Which two statements concerning IS-IS adjacencies are correct? (Choose two.)

Options:

A.

For Level 1 adjacencies, the area IDs can be different.

B.

For Level 2 adjacencies, the area IDs can be different.

C.

Level 2 routers can form an adjacency with Level 1 routers.

D.

Level 2 routers do not form adjacencies with Level 1 routers.

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Questions 14

Click the Exhibit button.

You are implementing the network shown in the exhibit. You must ensure that all users can communicate with each other.

What are three steps that should be taken in this scenario? (Choose three.)

Options:

A.

You must specify the appropriate Layer 3 IRB interface under each VLAN.

B.

You must define all ports as trunk ports and include all VLANs as members.

C.

You must define all ports as access ports and include the appropriate VLAN as a member.

D.

You must configure a single logical IRB interface with an IP address for each of the three networks.

E.

You must create a unique logical IRB interface for each network and assign an IP address within the appropriate network.

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Questions 15

Which statement is correct about access ports?

Options:

A.

Access ports must have an IRB assigned to accept untagged traffic.

B.

By default, access ports accept only VLAN tagged traffic.

C.

Access ports must have an IRB assigned to accept VLAN tagged traffic.

D.

By default, an access port can have only a single VLAN assigned.

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Questions 16

Which two port security mechanisms rely on an accurate DHCP snooping database to operate correctly? (Choose two.)

Options:

A.

IP source guard

B.

persistent MAC learning

C.

MACsec

D.

dynamic ARP inspection

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Exam Code: JN0-349
Exam Name: Enterprise Routing and Switching - Specialist (JNCIS-ENT)
Last Update: Dec 2, 2023
Questions: 110
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