JN0-102 · Question #56
Which two statements are true regarding rescue configurations? (Choose two.)
The correct answer is B. The rescue configuration must contain the minimal elements necessary to restore network connectivity. D. A rescue configuration must include a root password.. A rescue configuration is a user-defined configuration snapshot designed to restore basic connectivity in case of major configuration errors, and it must explicitly include a root password for access.
Question
Which two statements are true regarding rescue configurations? (Choose two.)
Options
- AOnce saved, a rescue configuration is loaded using the rollback 0 command.
- BThe rescue configuration must contain the minimal elements necessary to restore network connectivity.
- CA minimal rescue configuration is defined by default.
- DA rescue configuration must include a root password.
How the community answered
(33 responses)- A6% (2)
- B88% (29)
- C6% (2)
Why each option
A rescue configuration is a user-defined configuration snapshot designed to restore basic connectivity in case of major configuration errors, and it must explicitly include a root password for access.
A rescue configuration is loaded using the `rollback rescue` command, not `rollback 0`, which reverts to the last committed configuration.
The purpose of a rescue configuration is to provide a known-good, minimal configuration that allows administrative access and basic network connectivity in emergency situations.
Junos OS does not define a minimal rescue configuration by default; it must be explicitly created and saved by an administrator using the `save configuration rescue` command.
To ensure that administrators can always access the device, a rescue configuration must explicitly define a root password, preventing lockout if other authentication methods fail.
Concept tested: Junos configuration management - rescue configuration
Source: https://www.juniper.net/documentation/us/en/software/junos/junos-basics/topic-map/junos-cli-configuration-rescue.html
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