Ensurepass

 

QUESTION 61

An OSPF network has been designed with multiple areas to improve scalability. Which two statements are true? (Choose two.)

 

A.

Each router in the OSPF network runs the shortest-path-first algorithm to determine paths through the network.

B.

The Area Border Router for each area runs the shortest-path-first algorithm and floods its results through the area.

C.

Each area must have at least one link connecting it to each of the other areas of the OSPF network.

D.

OSPF provides loop-free routing within an OSPF routing domain, but does not guarantee symmetrical routing.

 

Correct Answer: AD

 

 

QUESTION 62

Click the Exhibit button. Customer A is complaining that routes advertised from the CE2 router are not being received on the CE1 router. The physical topology of the network is CE1-PE1-PE2-CE2. The CE1-PE1 subnet is 172.16.1.0/24. The CE2-PE2 subnet is 172.16.2.0/24. PE1’s loopback is 192.168.3.1 and PE2’s loopback is 192.168.4.1.Referring to the output in the exhibit, what is the problem?

 

clip_image002

 

A.

No LSP exists between PE1 and PE2.

B.

Route targets are not properly configured.

C.

as-override is not configured in the VRFs.

D.

family inet-vpn is not configured on the PEs.

 

Correct Answer: A

 

 

QUESTION 63

Click the Exhibit button. In the exhibit, what happens if the source starts sending multicast traffic toward R1 and there are receivers registered at the RP?

 

clip_image004

 

A.

R1 encapsulates the multicast packets into a PIM register multicast packet.

B.

R1 encapsulates the multicast packets into PIM join unicast messages.

C.

R1 forwards the multicast packets on the S,G tree towards the RP.

D.

R1 tunnels the multicast packets in PIM register messages toward the RP.

 

Correct Answer: D

 

 

QUESTION 64

Click the Exhibit button. You have an MPLS network and you have configured most-fill as a CSPF tiebreaker. Using the information in the exhibit, which path will be used to signal a new LSP requiring 12 Mbps?

 

clip_image006

 

A.

Path 1

B.

Path 2

C.

Path 3

D.

Path 4

 

Correct Answer: D

 

 

QUESTION 65

Which two configuration parameters are required to configure a BGP-signaled VPLS service? (Choose two.)

 

A.

vpls-id

B.

site-identifier

C.

route-distinguisher

D.

site-address

Correct Answer: BC

 

 

QUESTION 66

Click the Exhibit button. Referring to the exhibit, which statement is correct?

 

clip_image008

 

A.

Only multicasts packets (224.0.1.39) are allowed on the input and output direction.

B.

Auto-RP discovery messages are filtered in the input and output direction.

C.

Rendezvous point announcements are filtered in the output direction.

D.

This filter does not work because the input or output parameter is missing.

 

Correct Answer: C

 

 

QUESTION 67

Click the Exhibit button. The IGP is IS-IS. Routes from R1 need to be present on R6. Referring to the exhibit, what will accomplish this task?

 

clip_image010

 

A.

Create an L1 adjacency between R2 and R3 to allow the routes to pass through to R6.

B.

Use policy on R3 to leak R1’s routes from L2 to L1.

C.

Change the area address from 49.0003 to 49.0001 on R6 to allow R6 to accept routes from R1.

D.

Use policy on R2 to leak R1’s routes from L1 to L2.

 

Correct Answer: B

 

 

 

 

 

 

QUESTION 68

Click the Exhibit button. Referring to the exhibit, PE2 requires the loopback of PE1 to appear in the inet.3 routing table as a labeled route. Which configuration parameter is specifically required to support this?

 

clip_image012

 

A.

resolve-vpn

B.

family inet-vpn

C.

traffic-engineering bgp-igp

D.

traffic-engineering mpls-forwarding

 

Correct Answer: A

 

 

QUESTION 69

What are three Junos automation scripts? (Choose three.)

 

A.

op scripts

B.

pulse scripts

C.

commit scripts

D.

event scripts

E.

action scripts

 

Correct Answer: ACD

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

QUESTION 70

Click the Exhibit button. Your IT manager asks you to describe a benefit of migrating from LDP VPLS towards BGP VPLS considering the operational network shown in the exhibit. What can you tell your manager?

 

clip_image014

 

A.

Using BGP signaling improves scaling, because a full mesh of transport LSPs is not needed.

B.

MAC addresses are learned through BGP instead of LDP, which improves scaling.

C.

Ingress PE replication can be reduced, because BGP VPLS supports P2MP LSPs.

D.

Configuration overhead is reduced when adding new sites or new VPNs.

 

Correct Answer: D

 

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