4A0-114 : Nokia Border Gateway Protocol Fundamentals for Services Exam

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Nokia
4A0-114
Nokia Border Gateway Protocol Fundamentals for Services
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Question: 81
Click the exhibit.
Which of the following is a valid confederation configuration for Router R2?


A. Option A
B. Option B
C. Option C
D. Option D
Answer: C
Question: 82
Click the exhibit.

Router R1 is a route reflector with clients R2, R5 and R6. Prefixes advertised by router R5 have a local preference of
200. Router R3 advertises the prefix 192.168.1.0/27 to routers R5 and R6.
Assuming that none of the routers in AS 65540 is configured with "advertise-external", what is the expected output of
"show router bgp routes" on router R5?




A. Option A
B. Option B
C. Option C
D. Option D
Answer: C
Question: 83
In the diagram, the BGP import policy "north-and-south" is applied to router R5. Router R1 advertises the prefix
140.100.1.0/24 with a community set to "65200:1".
Which of the following statements about how router R5 processes the received route update for prefix 140.100.1.0/24
is TRUE?


A. The prefix is rejected.
B. The prefix's local preference is set to 20.
C. The prefix's community value is removed.
D. The prefix's community value is modified to 65200:2.
Answer: D
Question: 84
Which of the following statements about BGP is FALSE?
A. Peers need to be IP reachable to establish a BGP session.
B. Route reflectors can reduce the number of iBGP sessions required.
C. iBGP peers have to be adjacent to each other.
D. The multihop parameter needs to be configured when eBGP peers are not adjacent to each other.
Answer: C
Question: 85
A BGP session is stuck in the "Connect" state.
Which of the following is the most likely reason?
A. The remote BGP peer is properly configured but the local router is not.
B. The local router is properly configured but the remote BGP peer is not.
C. The BGP protocol is administratively disabled on the local router.
D. The BGP protocol is administratively disabled on the remote BGP peer.
Answer: B
Question: 86
Which of the following statements about BGP peering sessions is FALSE?
A. BGP peers need IP reachability between them.
B. iBGP peers can be non-adjacent.
C. eBGP peers have to be adjacent to each other.
D. BGP peers can be configured with different AS numbers.
Answer: C
Question: 87
A BGP router receives the following routes.
Which route is selected as best route?
1: 192.169.20.0/24 with local preference 100, MED 150, AS Path 65300 65200 from an eBGP neighbor
2: 192.169.20.0/24 with local preference 100, MED 100, AS Path 63200 from an iBGP neighbor
3: 192.169.20.0/24 with local preference 200, MED 150, AS Path 65400 63200 from an iBGP neighbor
4: 192.169.20.0/24 with local preference 200, MED 100, AS Path 63700 from an eBGP neighbor
A. Route 1
B. Route 2
C. Route 3
D. Route 4
Answer: B
Question: 88
Which of the following pieces of information is NOT carried inside an EVPN IP-Prefix (type 5) route update
associated with an EVPN VPLS?
A. The MAC address of an attached host.
B. The IP prefix of a subnet in the layer-3 domain that the VPLS belongs to.
C. The VPLS's route-distinguisher and route-target values.
D. The VPLS's service tunnel ID (MPLS label or VNI value).
Answer: B
Question: 89
What does an EVPN VPLS do that a traditional VPLS does not do?
A. It provides a multipoint connectivity service.
B. It maintains a forwarding database.
C. It uses control-plane MAC learning.
D. It acts as a switch, carrying full layer-2 frames between customer sites.
Answer: C
Question: 90
Which BGP message type is used to verify connectivity during and after BGP session establishment?
A. Hello
B. Update
C. Open
D. Keep-Alive
Answer: D
Question: 91
An export policy is applied on a router to advertise a prefix to its eBGP peers.
By default, which of the following updates are made to the route attributes?
A. LOCAL_PREFERENCE is set to 100.
B. NEXT_HOP is set to the neighbor router's interface IP address.
C. The local AS number is added to AS_PAT
D. COMMUNITY is set to the local AS number.
Answer: C
Question: 92
Which of the following statements about IPv6 Link-Local addresses is FALSE?
A. They are assigned to every physical interface running IPv6.
B. They are only valid for communication within the same broadcast domain.
C. They all have the same 64-bit subnet prefix.
D. They have an interface ID derived by default from the interfaceâs IPv4 address.
Answer: D
Question: 93
Which of the following regarding BGP Path Identifier is FALSE?
A. Path-ID is a four-octet identifier pre-pended to the NLRI field of a BGP update.
B. Path-ID is an optional transitive attribute used to advertise multiple paths.
C. Path-ID uniquely identifies each path advertised to a neighbor.
D. A BGP speaker that re-advertises a route must generate its own Path-I
Answer: B
Question: 94
Which of the following statements about BGP is FALSE?
A. BGP uses Hello messages to dynamically discover BGP peers.
B. To establish a BGP session, a TCP session must first be established between the two routers.
C. BGP uses the OPEN message to exchange capability parameters between routers.
D. BGP was originally designed as an exterior routing protocol.
Answer: D
Question: 95
Which of the following statements about route reflector clusters is FALSE?
A. Multiple clusters may be configured within an A
B. Within an AS, route reflectors belonging to different clusters do not need to be fully-meshed among themselves.
C. A router can be the client of multiple route reflectors within its A
D. When a route reflector reflects a route, it adds its cluster ID to the Cluster_list attribute.
Answer: C

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