JN0-351 sample questions

Question 1

In an IS-IS network, what is the role of a Designated Intermediate System (DIS)?
```mermaid
graph TD
subgraph Broadcast Network
R1(Router 1) --- R2(Router 2)
R1 --- R3(Router 3)
R1 --- R4(Router 4)
R2 --- R3
R2 --- R4
R3 --- R4
end
DIS[DIS Creates Pseudonode] --> R1
DIS --> R2
DIS --> R3
DIS --> R4
```

Accepted Answer

To create and flood a pseudonode Link-State PDU (LSP) representing the broadcast network.

Answer

To act as the central point for all routing traffic on the segment.

Answer

To assign area addresses to all other routers on the network segment.

Answer

To break IS-IS level-2 adjacencies and enforce a level-1 only area.

Question 2

What is the management IP address of the device shown in the exhibit?

Accepted Answer

10.210.20.233

Answer

172.23.12.100

Answer

128.0.0.1

Answer

172.23.11.10

Question 3

Which three protocols support BFD? (Choose three.)

Accepted Answer

BGP

Accepted Answer

OSPF

Accepted Answer

LACP

Answer

RSTP

Answer

FTP

Question 4

Which statement is correct about graceful Routing Engine switchover (GRES)?

Accepted Answer

When combined with NSR, routing is preserved and the new master RE does not restart rpd.

Answer

The PFE restarts and the kernel and interface information is lost.

Answer

GRES has a helper mode and are starting mode.

Answer

With no other high availability features enabled, routing is preserved and the new master RE does not restart rpd.

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Free JN0-351 sample questions

In an IS-IS network, what is the role of a Designated Intermediate System (DIS)? graph TD subgraph Broadcast Network R1(Router 1) --- R2(Router 2) R1 --- R3(Router 3) R1 --- R4(Router 4) R2 --- R3 R2 --- R4 R3 --- R4 end DIS[DIS Creates Pseudonode] --> R1 DIS --> R2 DIS --> R3 DIS --> R4

What is the management IP address of the device shown in the exhibit?

Which three protocols support BFD? (Choose three.)

Which statement is correct about graceful Routing Engine switchover (GRES)?

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