Ensurepass

 

QUESTION 41

In an OSPF environment, which two configuration parameters are used to determine which router is the DR? (Choose two.)

 

A.

the router with the highest priority

B.

the router with the lowest priority

C.

the router with the highest RID

D.

the router with the lowest RID

 

Correct Answer: AC

 

 

QUESTION 42

Which statement is true regarding the default master routing instance?

 

A.

All IPv4 routes in the master routing instance are shared with user-defined routing instances.

B.

Interface routes in the master routing instance are shared with user-defined routing instances.

C.

Routes in the master routing instance are not shared with user-defined routing instances.

D.

All routes in the master routing instance are shared with user-defined routing instances.

 

Correct Answer: C

 

 

QUESTION 43

For a network running single-area OSPF, how would you decrease the size of the link-state database (LSDB)?

 

A.

Implement RIP as an overlay protocol on all devices.

B.

Add more devices to the OSPF network to help with LSDB processing.

C.

Reduce the frequency of hello timers throughout the network.

D.

Implement OSPF areas.

 

Correct Answer: D

 

 

QUESTION 44

Click the Exhibit button. Referring to the exhibit, which two statements are true regarding the GE interface? (Choose two.)

 

— Exhibit —

 

[edit]

 

user@router# run show isis interface

 

IS-IS interface database:

 

Interface L CirID Level 1 DR Level 2 DR L1/L2 Metric

 

ge-1/0/2.0 3 0x1 router.00 router.00 10/10

 

lo0.0 0 0x1 Passive Passive 0/0

 

— Exhibit —

 

A.

It operates at both Level 1 and Level 2.

B.

It operates at Level 3, which supports hierarchical backbone areas.

C.

The local router is the IS-IS designated intermediate system at all levels.

D.

The local router is the IS-IS designated router at all levels.

 

Correct Answer: AC

 

 

QUESTION 45

Which OSPF LSA type is sent from the ABR to describe an ASBR that is in an area to which it is connected?

 

A.

Type 7

B.

Type 5

C.

Type 4

D.

Type 3

 

Correct Answer: C

 

 

QUESTION 46

Click the Exhibit button. Referring to the BGP peering sessions shown in the exhibit, which two statements are true? (Choose two.)

 

— Exhibit —

 

[edit]

 

user@router> show bgp summary

 

 

Peer AS InPkt OutPkt OutQ Flaps Last Up/Dwn State…

 

5.1.1.1 100 10 0 1 14:06 Established

 

10.1.1.1 200 10 0 1 14:06 Active

 

20.1.1.1 300 10 0 1 14:06 Idle

 

— Exhibit —

 

A.

The peering session with the 10.1.1.1 neighbor is fully operational.

B.

The peering session with the 5.1.1.1 neighbor is fully operational.

C.

The local router peering with the 20.1.1.1 neighbor is waiting for a start event.

D.

The local router peering with the 20.1.1.1 neighbor is waiting for a BGP refresh message.

 

Correct Answer: BC

 

 

QUESTION 47

Which two statements correctly describe how the AS path attribute is used by BGP? (Choose two.)

 

A.

The AS path attribute is updated whenever an EBGP-learned route is re-advertised using IBGP.

B.

The AS path attribute is updated in EBGP advertisements only and is the primary loop- avoidance mechanism for BGP.

C.

When local preference is the same, the AS path attribute is a common tiebreaker, where paths with fewer AS hops are preferred.

D.

When local preference is the same, the AS path attribute is a common tiebreaker, where paths with more AS hops are preferred.

 

Correct Answer: BC

 

 

QUESTION 48

What are two valid IPv6 addresses? (Choose two.)

 

A.

2bfc::02 :0:0:fe c:5c

B.

2bfc::2 ::fe c:5c

C.

2bfc:2 :0:0:fe c:5c

D.

2bfc:0:0:2 ::fe c:5c

 

Correct Answer: AD

 

 

QUESTION 49

What are two similarities between OSPF and IS-IS? (Choose two.)

 

A.

Both use hello packets to form and maintain adjacencies.

B.

Both use the Dijkstra algorithm to construct a shortest-path tree.

C.

Both elect a designated router and a backup designated router.

D.

Both have a built-in mechanism to provide address summarization between areas.

 

Correct Answer: AB

 

 

QUESTION 50

You want to establish an IS-IS Level 1 adjacency between two routers. The adjacency is not forming. Which three reasons would account for this issue? (Choose three.)

 

A.

A lack of or a malformed ISO network entity title (NET) on the loopback interface would cause this issue.

B.

The interface MTU might be less than 1492.

C.

The IS-IS protocol on the loopback interface has not been enabled.

D.

The area IDs might be matched and should be set differently.

E.

An ISO NET might not be configured on the physical interface.

Correct Answer: ABC

 

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