Ensurepass

 

QUESTION 181

You have an AS boundary router which is also an area border router with an NSSA attached. Which two LSA types are exported into the NSSA by default? (Choose two.)

 

A.

Type 3

B.

Type 5

C.

Type 7

D.

Type 9

 

Correct Answer: AC

 

 

QUESTION 182

Click the Exhibit button. You are creating an OSPF multiarea adjacency with a link between two ABRs. Referring to the exhibit, which configuration setting must be added to the routers to allow the second adjacency to form?

 

clip_image002

 

A.

You must add the second area under [edit protocols ospf] and add a policy statement exporting the respective router-id into OSPF.

B.

You must add the second area under [edit protocols ospf] and add a static route with the destination of the other ABR’s router-id in the area.

C.

You must add the second area under [edit protocols ospf] and configure the respective interface as secondary in the area.

D.

You must add the second area under [edit protocols ospf] and add the respective interfaces.

 

Correct Answer: C

 

 

QUESTION 183

Click the exhibit button. OSPF was configured 15 minutes ago and all databases are synchronizeD. However, the router is not receiving any transit traffic. What is a reason for this behavior?

 

 clip_image004

A.

The reference bandwidth has been set incorrectly.

B.

The hold-time attribute is set too low.

C.

The overload timeout threshold has not been reached.

D.

The preference attribute has been set too high.

 

Correct Answer: C

 

 

QUESTION 184

Refer to the exhibit. You have configured your Junos device to tag routes; however, you are not seeing the routes being tagged. What is causing the problem?

 

clip_image006

 

A.

You must configure the tagging on the physical interfaces, not on the loopback.

B.

Route tagging does not work when IS-IS traffic engineering is disabled.

C.

You must import the policy into IS-IS, not export it.

D.

The policy-statement should have only a then tag 200; the acceptis accepting the route and ignoring the tag.

 

Correct Answer: B

 

 

 

 

 

 

QUESTION 185

Refer to the exhibit. You have implemented the IS-IS configuration shown in the exhibit. Which two statements are true? (Choose two.)

 

clip_image008

 

A.

An IS-IS adjacency can establish on the fe-2/1/0.0 interface.

B.

The SONET interface configuration allows the sharing of only Level 2 routes.

C.

The fe-1/0/0.0 interface configuration allows sharing of Level 1 and Level 2 routes.

D.

The fe-2/0/0.0 interface configuration allows advertising of its IP address into the LSPs.

 

Correct Answer: CD

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

QUESTION 186

Refer to the exhibit. Referring to the exhibit, what are two reasons why R2 and R4 show a different hello interval than R1 and R3? (Choose two.)

 

clip_image010

 

A.

R4 is the DIS.

B.

R2 is the DIS.

C.

R4 has explicit configuration to set the hello interval to 3 seconds.

D.

R2 has explicit configuration to set the hello interval to 3 seconds.

 

Correct Answer: BC

 

 

 

 

QUESTION 187

You want to use IS-IS on a GRE interface where the underlying Layer 3 MTU is 1500. Which statement is correct?

 

A.

IS-IS can be used because every IS-IS interface must be capable of transmitting packets at least as large as 1476 bytes, and the GRE header is 24 bytes.

B.

IS-IS cannot be used because the IS-IS hello is not allowed to be fragmented and has the DF bit set.

C.

IS-IS can be used, but the networking device directly attached to the circuit must be capable of fragmentation.

D.

IS-IS cannot be used, but the router can enable a GRE key that serves the same function as IS-IS.

 

Correct Answer: C

 

 

QUESTION 188

How does a router use BGP to deflect a distributed denial-of-service attack against a prefix at all edge routers in the same AS?

 

A.

It advertises the prefix with a local preference that is higher than any other node, and sets the next hop to a unicast route that has a discard next hop.

B.

It advertises the prefix with a local preference that is higher than any other node and sets the next hop to self.

C.

It advertises the prefix with a local preference that is lower than any other node and sets the next hop to a unicast route that has a discard next hop.

D.

It advertises the prefix with a local preference that is lower than any other node and sets the next hop to self.

 

Correct Answer: A

 

 

QUESTION 189

You are hired at an ISP and your new employer asks you to become familiar with the routing policy. The 42+.*[21112]$ regular expression is in one of the policies. Which three AS paths match the regex statement? (Choose three.)

 

A.

42 42 42 42 6

B.

42 42 42 27 21

C.

42 42 42 42 12

D.

42 69 2112 112

E.

42 69 212112

 

Correct Answer: BCE

 

 

QUESTION 190

You have an existing Layer 3 VPN connecting Site 1 and Site 2. Both CE devices are in the same autonomous system and are sharing routes with your PE devices using EBGP. You must share routes between the sites. Which BGP configuration parameter must you use?

 

A.

Advertise-inactive

B.

Remove-private

C.

As-override

D.

Multihop

 

Correct Answer: C

 

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