Nokia 4A0-C02 Nokia SRA Composite Exam Online Training
Nokia 4A0-C02 Online Training
The questions for 4A0-C02 were last updated at Aug 13,2025.
- Exam Code: 4A0-C02
- Exam Name: Nokia SRA Composite Exam
- Certification Provider: Nokia
- Latest update: Aug 13,2025
Which of the following best describes the purpose of advertise-external?
- A . It enables a BGP speaker to advertise multiple external routes to iBGP peers.
- B . It enables a BGP speaker to advertise its best external route to iBGP peers when the best overall route is internal.
- C . It enables a BGP speaker to advertise its best external route to eBGP peers without an import policy.
- D . It enables a BGP speaker to advertise its best internal route to eBGP peers without an export policy.
Click the exhibit.
After router A receives the BGP update for the 10.3.3.0/24 prefix, which routers will the route be propagated to?
- A . All routers with which it has a BGP session.
- B . All routers with which it has a BGP session, except the router it received the update from, which is router B.
- C . All routers with which it has a BGP session, except the router it received the update from, which is router C.
- D . All routers with which it has a BGP session, except the router it received the update from, which is router D.
- E . Only eBGP neighbors.
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 router R6 is configured with "advertise-external", what is the expected output of "show router bgp routes" when executed on router R5?
- A . Option A
- B . Option B
- C . Option C
- D . Option D
Click the exhibit.
Over which BGP session will router B learn the 10.1.1.0/24 prefix?
- A . The session between router A and router B.
- B . The session between router C and router B.
- C . The session between router D and router B.
- D . Router B will learn the prefix over all of the sessions, then it will choose the best route.
Click the exhibit.
Assume all router-IDs are properly configured, and IPv6 link-local addresses are used to establish all eBGP sessions.
Given the following iBGP configuration on router A, what is the Next Hop for prefix 2001:DB8:A:401::1/128 on router B?
- A . The IPv6 link-local address of the router D interface towards router A.
- B . The IPv6 link-local address of the router A interface towards router D.
- C . The IPv6 global address of router A.
- D . The IPv6 global address of router D.
A BGP session is in OpenConfirm state.
Which of the following messages must be received to transition to Established state?
- A . Update
- B . Open
- C . Notification
- D . Keepalive
Which of the following routes is NOT considered an internal route?
- A . A route received from a BGP peer within the same AS.
- B . A route originated by a router in a different cluster of the same AS.
- C . A route received from a BGP peer from a different member AS of a confederation.
- D . A route received from a BGP peer from the same member AS of a confederation.
What happens to a route that is rejected by an import policy on an Alcatel-Lucent 7750 SR?
- A . The route is discarded.
- B . The route is kept in the RIB-In, but marked as an invalid route.
- C . The route is moved to the LOC-RIB, but not marked as a used route.
- D . The route is moved to the route table, but not to the FIB.
The configuration of an Alcatel-Lucent 7750 SR is given below.
Router R1 has established BGP sessions with routers R2 and R3.
Which of the following is TRUE?
- A . Router R1 forms an iBGP session with router R2, and an eBGP session with router R3.
- B . Router R1 forms iBGP sessions with routers R2 and R3.
- C . Router R1 forms eBGP sessions with routers R2 and R3.
- D . The types of BGP sessions with routers R2 and R3 cannot be determined.
Which of the following regarding "well-known discretionary” BGP attributes is TRUE?
- A . They must be recognized by all peers and included in all BGP updates.
- B . They are discarded if not recognized by the recipient.
- C . They must be recognized by all peers and optionally included in BGP updates.
- D . The receiving router sends a notification if a well-known discretionary attribute is not present in an update.
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