PassLeader Free Juniper JN0-661 Dumps with VCE and PDF (Question 61 – Question 70)

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QUESTION 61
Which two statements are true about IS-IS adjacency formation? (Choose two.)

A.    Level 1 only routers never form an adjacency with Level 2 only routers.
B.    Level 1 only routers always form an adjacency with Level 2 only routers.
C.    For Level 1 adjacencies, area IDs must be the same.
D.    For Level 2 adjacencies, area IDs must be the same.

Answer: AC
Explanation:
An L1 router does not form an adjacency with an L2 router, regardless of area. L1 routers form L1 adjacencies with L1 and L1-L2 routers in their area. L2 routers form L2 adjacencies with L2 and L1-L2 routers in their area or another area.
http://www.ciscopress.com/articles/article.asp?p=730191&seqNum=7

QUESTION 62
Which address range has been specifically reserved for use with SSM traffic?

A.    233.0.0.0/8
B.    224.2.0.0/16
C.    232.0.0.0/8
D.    239.0.0.0/8

Answer: C
Explanation:
Source-Specific Multicast (SSM) Group address range is 224/4, but it is guaranteed only for 232/8.
https://www.juniper.net/documentation/en_US/junos15.1×49/topics/topic-map/mcast-ssm.html

QUESTION 63
passleader-JN0-661-dumps-631
[email protected]> show ospf interface detail
Interface State Area DR ID BDR ID Nbcs
xe-0/0/1.0 BDR 0.0.0.0 2.169.37.12 11.244.245.215 1
Type LAN, address 192.161.27.11, Mask 255.255.255.248, MTU 4460, Cost 40 DR addr 192.161.37.12, BDR addr 192.168.37.11, Adj count 1, Priority 128 Hello 10, Dead 40, ReXmit 5, Not Stub
fe-0/2/1.0 PtToPt 0.0.0.0 0.0.0.0 0.0.0.0
Type P2P, Address 0.0.0.0, Mask 0.0.0.0, MTU 1500, Cost 2604 Adj count 0
Hello 10, Dead 40, ReXmit 5, Not stub
Auth type: MDS, Active key ID 3, Start time 2013 Jul 19 10:00:00 PST IPsec SA Name: sa
[email protected]> show ospf interface detail
Interface State Area DR ID BDR ID Nbcs
xe-1/1/1.0 BDR 0.0.0.0 192.168.37.12 11.244.245.216 1
Type LAN, address 192.161.27.12, Mask 255.255.255.248, MTU 4460, Cost 40 DR addr 192.161.37.12, BDR addr 192.168.37.11, Adj count 1, Priority 128 Hello 3, Dead 9, ReXmit 5, Not stub
fe-2/2/2.0 PtToPt 0.0.0.0 0.0.0.0 0.0.0.0
Type P2P, address 0.0.0.0, Mask 0.0.0.0, MTU 1500, Cost 2604 Adj count 0
Hello 10, Dead 40, ReXmit 5, Not Stub
Auth type: MDS, Active key ID 3, Start time 2013 Jul 19 10:00:00 PST IPsec SA Name: sa
Which two statements are true about the OSPF adjacency displayed in the exhibit? (Choose two.)

A.    There is a mismatch in the dead interval parameter between routers R1 and R2.
B.    There is a mismatch in the hold timer parameter between routers R1 and R2.
C.    There is a mismatch in the hello interval parameter between routers R1 and R2.
D.    There is a mismatch in the poll interval parameter between routers R1 and R2.

Answer: AC
Explanation:
https://inetzero.com/what-is-your-ospf-neighbor-doing-adjancency-problems-in-ospf/

QUESTION 64
Which OSPFv3 router ID is valid?

A.    192.168.1.1
B.    ::192.168.1.1
C.    0.0.0.0
D.    2008:db8::1

Answer: A
Explanation:
OSPFv3 Router IDs, Area IDs, and LSA link-state IDs remain at the OSPFv2 IPv4 size of 32 bits.

QUESTION 65
You are working with a new MPLS network that is using the default EXP classifier and default schedules. A small amount of traffic is being placed in the assured forwarding class. No other traffic is passing through the network at this time. In this scenario, what happens to the traffic that is being placed in the assured forwarding class?

A.    The traffic is reclassified to the best effort forwarding class and is forwarded.
B.    The traffic remains in the assured forwarding class and is forwarded.
C.    The traffic is reclassified to the network control forwarding class and is forwarded.
D.    The traffic remains in the assured forwarding class and is dropped.

Answer: B
Explanation:
https://www.juniper.net/documentation/en_US/junos15.1/topics/concept/forwarding-classes-default-cos-config-guide.html

QUESTION 66
You are asked to design a Layer 2 VPN service between service provider networks that needs Ethernet transport capabilities. The VPN should support two or three endpoints. Which Layer 2 VPN technology should you propose?

A.    LDP-signaled VPLS
B.    BGP-signaled VPLS, using the RFC 4448 Layer 2 frame format
C.    LDP Layer 2 circuit, using the RFC 4448 Layer 2 frame format
D.    BGP Layer 2 VPN

Answer: B

QUESTION 67
Referring to the exhibit, what are three operations performed by the service provider’s PE routers? (Choose three.)
passleader-JN0-661-dumps-671

A.    Modify the VRF label assigned using MP-BGP.
B.    Maintain the customer’s /32 loopback internal routes.
C.    Use MP-EBGP to send Customer Site 2’s internal routes to CE-1.
D.    Maintain the customer’s external routes.
E.    Maintain routes internal to the provider’s network.

Answer: BCE

QUESTION 68
Referring to the exhibit, You have a Layer 3 VPN connecting Site 1, Site 2, and Site 3. Site 1 and Site 3 have a backdoor IBGP connection. You must meet these requirements:
1. Ensure that PE2 does not advertise the routes learned from PE1 to CE3.
2. Ensure that PE1 does not advertise the routes learned from PE2 that originated from CE3.
3. All routes must be present in Site 2.
Which two statements meet these requirements? (Choose two.)
passleader-JN0-661-dumps-681

A.    Use a unique origin community on each PE and tag the appropriate BGP routes when importing them from the local CE devices.
B.    Use a unique origin community on each PE and tag the appropriate BGP routes when exporting them to the connected CE devices.
C.    Use an export policy that matches routes with the remote origin community and blocks these routes from being advertised to the connected CE devices.
D.    Use a VRF import policy that matches the routes with the remote origin community and blocks these routes from being accepted.

Answer: AC

QUESTION 69
You have an OSPF area configured as shown in the exhibit. Which two statements are true? (Choose two.)
[edit protocols ospf area 0.0.0.2]
[email protected]# show
area-range 0.0.0.0/1 restrict;
interface ge-0/0/1.0;

A.    The 30.0.0.0/8 prefix will not be advertised to Area 0 as a Type 3 LSA.
B.    The 200.0.0.0/8 prefix will not be advertised to Area 0 as a Type 3 LSA.
C.    To be effective, the configuration must be used on an ASBR router.
D.    To be effective, the configuration must be used on an ABR router.

Answer: AD

QUESTION 70
The Client 1 router forwards a route learned from its EBGP peer to the route reflector RR1. The route reflector forwards the route to the Client 2 router. However, the Client 2 router uses suboptimal routing to reach the EBGP route destination. What would cause this behavior?
passleader-JN0-661-dumps-701

A.    The route reflector becomes the default forwarding path for packets sent from Client 2 towards the EBGP route destination.
B.    The route reflector is using the no-client-reflect parameter.
C.    The route reflector has a next-hop self policy for EBGP-learned routes.
D.    The route reflector is applying the originator ID attribute to the route.

Answer: A


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