4A0-102 practice question 4 of 25

Which of the following commands would correctly configure the confederation AS number as 65200 with a member AS of 65202?

Full set: 152 questions
Answer options
A: config>router- confederation 65200 members 65202
B: config>router>bgp= confederation 65200 members 65202 Correct answer
C: config>router= confederation 65202 members 65200
D: config>router>bgp= confederation 65202 members 65200
Correct Answer:
B. config>router>bgp= confederation 65200 members 65202
Explanation

The configuration of a BGP confederation on a Nokia SR OS router is performed within the BGP protocol context. The correct command path is config>router>bgp. The syntax requires the confederation's external AS number to be specified first, followed by the members keyword and the list of internal member AS numbers. In this scenario, the confederation AS is 65200 and the member AS is 65202. Therefore, the command confederation 65200 members 65202 under the config>router>bgp context is the correct configuration.

Why Incorrect

A. This command is in the incorrect CLI context (config>router). The confederation must be defined within the BGP instance (config>router>bgp).
C. This command is in the incorrect CLI context and incorrectly swaps the confederation AS (65202) and member AS (65200) numbers.
D. This command incorrectly swaps the confederation AS (65202) and member AS (65200) numbers.

References

1. Nokia 7750 SR OS R22.10.R1 Router Configuration Guide, Part No: 3HE 18391 AAAC TQZZA, Section: BGP Command Reference. The confederation command is listed with the context config>router>bgp. The syntax is shown as confederation [members ...], where is the confederation identifier.

2. Nokia 7750 SR OS R22.10.R1 Router Configuration Guide, Part No: 3HE 18391 AAAC TQZZA, Section: BGP Configuration Overview, Subsection: BGP Confederation Configuration. This section provides a configuration example: config>router>bgp# confederation 100 members 65530 65531, confirming the context and parameter order.

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