4A0-100 · Question #381
Which of the following statements about the system interface on the Nokia 7750 SR is FALSE?
The correct answer is B. The prefix length of its IP address must be /32. The system interface in Nokia SR OS is a loopback-style logical interface that represents the router itself. It is used for: Router ID assignment (if not manually set) Source IP for control-plane protocols (OSPF, BGP) Reachability testing Important properties: It is type…
Question
Which of the following statements about the system interface on the Nokia 7750 SR is FALSE?
Options
- AIt is configured as type loopback.
- BThe prefix length of its IP address must be /32.
- CIt exists by default.
- DIf the router ID is not configured, it inherits the value of the system IP address.
How the community answered
(22 responses)- A5% (1)
- B77% (17)
- C5% (1)
- D14% (3)
Explanation
The system interface in Nokia SR OS is a loopback-style logical interface that represents the router itself. It is used for: Router ID assignment (if not manually set) Source IP for control-plane protocols (OSPF, BGP) Reachability testing Important properties: It is type loopback It exists by default If router ID is unset, it uses the system IP address But the IP address on the system interface does not need to be /32 It can have other prefix lengths, especially in service provider scenarios.
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