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Nokia 4A0-C02 - Nokia SRA Composite Exam

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Total 639 questions

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 R1?

A.

Option A

B.

Option B

C.

Option C

D.

Option D

Click the exhibit.

Router R6 is a route reflector for clients R1, R2 and R5 with local preferences 100, 200 and 500 respectively. Router R3 advertises prefix 192.168.1.0/27 to routers R1, R2 and R5 which are configured with advertise-external. Routers R4 and R6 are both configured with "add-paths ipv4 send 2 receive". Which routes to 192.168.0.1/27 is router R4 expected to have in its BGP routing table?

A.

The routes from routers R1, R2 and R5.

B.

The routes from routers R1and R2.

C.

The routes from routers R2 and R5.

D.

Two routes are chosen at random and advertised to router R4.

Click the exhibit.

When router A receives the BGP update for the 192.168.0.1/27 prefix, it propagates it to routers B and C. What action is taken by router B when it receives the update?

A.

Router B propagates the BGP update to routers D and C.

B.

Router B propagates the BGP update to router D.

C.

Router B detects duplicates in its BGP database and discards the update.

D.

Router B propagates the update to routers A, C and D.

What kind of attribute is the aggregator?

A.

Well-known mandatory

B.

Well-known discretionary

C.

Optional transitive

D.

Optional non-transitive

Which of the following regarding BGP confederations is FALSE?

A.

The entire confederation is viewed as a single AS by an eBGP peer.

B.

Within a confederation, each member AS is considered as a stand-alone AS.

C.

Member ASs within a confederation can use route reflection.

D.

Member ASs must be fully meshed within a confederation.

Click the exhibit.

Considering that both routers C and D are advertising the eBGP learned prefix 10.5.0.0/16 into

ISP X, which of the following best describes the route advertisement within ISP X?

A.

Router C sends the update to routers E and F only.

B.

Router C sends the update to routers D, E and F.

C.

Router C sends the update to routers A, B, E and F.

D.

Router C sends the update to routers A, B, D, E and F.

Which of the following statements regarding Internet Exchange Points is FALSE?

A.

They provide both peering and transit services.

B.

They provide services only to Tier 1 service providers.

C.

They can be either public or private.

D.

They provide services at the local, regional and continental levels.

Assuming that "client1" and "client2" are directly-connected networks, what is the result of executing the following BGP export policy?

A.

"client2" routes will be only tagged with communities 'East'' and "South".

B.

"client2" routes will be tagged with community "East".

C.

"client2" routes will only be tagged with community "South".

D.

"client2" routes will be rejected.

Click the exhibit.

Router R1 is a route reflector with clients R2, R5 and R6. Router R3 advertises the prefix 192.168.1.0/27 to routers R5 and R6. Assuming that routers R1, R2 and R4 are configured with "add-paths ipv4 send 2 receive", what is the expected output of "show router bgp routes" when executed on router R2?

A.

Option A

B.

Option B

C.

Option C

D.

Option D

Click the exhibit.

Router R6 is a route reflector for clients R1, R2 and R5. Router R5 is configured with a local preference of 200. On which routers is "advertise-external* needed for router R6 to receive exactly two distinct routes for prefix 192.168.1.0/27?

A.

On router R5 only.

B.

On either router R1or R2.

C.

On both routers R1and R2.

D.

On all routers R1, R2 and R5.

Which of the following is FALSE regarding the 16-bit public autonomous system numbers?

A.

They are allocated to the RIRs by ICANN/IANA.

B.

They are used when connecting ASs on the Internet.

C.

They range from 1 to 56319.

D.

They are assigned by the ISPs for enterprise networks.

Click the exhibit.

Routers RR1 are RR2 are redundant route reflectors for clients R3 and R4. Which of the following is a valid configuration on router R3?

A.

Option A

B.

Option B

C.

Option C

D.

Option D

When implementing a BGP policy on an Alcatel-Lucent 7750 SR, which of the following types of address space would a typical address plan need to cover?

A.

RIR assigned CIDR space.

B.

External client address space.

C.

Loopback or link addresses.

D.

External link addresses.

E.

All of the above.

Click the exhibit.

Assume all router-IDs are properly configured, and link-local IPv6 addresses are used to establish the eBGP sessions. Which of the following is the MINIMAL configuration required on router A so that router B can exchange traffic with router D?

A.

Option A

B.

Option B

C.

Option C

D.

Option D

Why is a full mesh of iBGP peers required?

A.

To ensure proper route propagation inside a transit AS.

B.

To ensure that all routers are directly connected.

C.

To ensure that all routers run iBGP inside a transit AS.

D.

To maximize control plane scalability.