Juniper JN0-661 - Service Provider Routing and Switching Exam
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Total 132 questions
Question #11 (Topic: Topic 1)
Click the Exhibit button
[Juniper-JN0-661-7.0/Juniper-JN0-661-13_2.png]
AS 100 is originating and sending EBGP routes to AS 200 AS 200 is acting as a transit
provider and sending those routers to AS 300 AS 200 is using confederation topology
shown in the exhibit.
What will the AS path of AS 100's routes be when they are received on the AS 300 router?
[Juniper-JN0-661-7.0/Juniper-JN0-661-13_2.png]
AS 100 is originating and sending EBGP routes to AS 200 AS 200 is acting as a transit
provider and sending those routers to AS 300 AS 200 is using confederation topology
shown in the exhibit.
What will the AS path of AS 100's routes be when they are received on the AS 300 router?
A. 200 100
B. 200(65200 65100)100
C. (65200 65100)100
D. ({65200 65100}) 100
Answer: A
Question #12 (Topic: Topic 1)
You work for a service provider and need to build EVPN service which provides an
active/active multihorning topology using a single CE at each site. In this scenario, which
two statements are true? (Choose two.)
active/active multihorning topology using a single CE at each site. In this scenario, which
two statements are true? (Choose two.)
A. An Ethernet segment appears as a LAG to the CE device.
B. A backup designated forwarder is elected for forwarding BUM traffic to the CE device
C. TheEthernet segment identifier must be an all zeros identifier
D. A designated forwarder is elected for forwarding BUM traffic to the CE device.
Answer: A
Question #13 (Topic: Topic 1)
Click the Exhibit button
[Juniper-JN0-661-7.0/Juniper-JN0-661-15_2.png]
[Juniper-JN0-661-7.0/Juniper-JN0-661-15_3.png]
[Juniper-JN0-661-7.0/Juniper-JN0-661-16_2.png]
[Juniper-JN0-661-7.0/Juniper-JN0-661-17_2.png]
[Juniper-JN0-661-7.0/Juniper-JN0-661-17_3.png]
Referring to the exhibit, you have configured an L3VPN that connects Site-1 and Site-2
together, but the BGP routes are being hidden on the PE routers. The topology in this
scenario is shown below.
Site-1 > PE-1 > P-1 > P-2 > PE-2 > Site-2
Which two acttions would allow communication Site-1 and Site-2? (Choose two.)
[Juniper-JN0-661-7.0/Juniper-JN0-661-15_2.png]
[Juniper-JN0-661-7.0/Juniper-JN0-661-15_3.png]
[Juniper-JN0-661-7.0/Juniper-JN0-661-16_2.png]
[Juniper-JN0-661-7.0/Juniper-JN0-661-17_2.png]
[Juniper-JN0-661-7.0/Juniper-JN0-661-17_3.png]
Referring to the exhibit, you have configured an L3VPN that connects Site-1 and Site-2
together, but the BGP routes are being hidden on the PE routers. The topology in this
scenario is shown below.
Site-1 > PE-1 > P-1 > P-2 > PE-2 > Site-2
Which two acttions would allow communication Site-1 and Site-2? (Choose two.)
A. Disable CSPF on under MPLS on P-1 and P-2.
B. Configure DGP on P-1 and P-2.
C. Enable RSVP for all interfaces on P-1 and P-2.
D. Enable LDP for all interfaces on all routers.
Answer: C,D
Question #14 (Topic: Topic 1)
A layer 2 circuit (RFC 4447) is established between two PE routers to provide connectivity
between two customer sites. Which two statements related to this deployment are true?
between two customer sites. Which two statements related to this deployment are true?
A. Kompella encapsulation is used in the data plane communications.
B. LDP must be used for the control plane communications
C. BGP must be used for the control plane communications.
D. Martini encapsulation is used in the data plane communications.
Answer: B,D
Question #15 (Topic: Topic 1)
Click the Exhibit button
[Juniper-JN0-661-7.0/Juniper-JN0-661-18_2.png]
Referring to the exhibit, you have a network that uses PIM-SM and you need to block
certain PIM register messages. Which two statements are correct in this situation? (Choose
two.)
[Juniper-JN0-661-7.0/Juniper-JN0-661-18_2.png]
Referring to the exhibit, you have a network that uses PIM-SM and you need to block
certain PIM register messages. Which two statements are correct in this situation? (Choose
two.)
A. You should apply a policy that blocks PIM register messages from the source on R4.
B. You should apply a policy that blocks PIM register messages from the source on R3.
C. You should apply a policy that blocks PIM register messages from the source on R2.
D. You should apply a policy that blocks PIM register messages from the source on R1.
Answer: A
