Rescue Configurations

BD

The correct answers are B and D.

A rescue configuration is a backup of the configuration on a Juniper device that is used to restore the device to a functional state in case the primary configuration becomes corrupted or unusable. Here are detailed explanations of the two true statements regarding rescue configurations:

B. The rescue configuration must contain the minimal elements necessary to restore network connectivity: The primary purpose of a rescue configuration is to restore network connectivity. Therefore, it must include the minimal elements necessary to achieve that goal, such as the minimum IP addressing, routing, and security configurations needed to access the device and bring it back online. The rescue configuration must also include the necessary interfaces and protocols to ensure connectivity with other devices on the network.

D. A rescue configuration must include a root password: The rescue configuration must include a root password to ensure that only authorized personnel can access and modify the configuration. Without a root password, anyone could access the rescue configuration and make unauthorized changes, potentially causing more problems for the network.

A. Once saved, a rescue configuration is loaded using the rollback 0 command: This statement is incorrect. While the rollback 0 command can be used to restore the configuration to its previous state, it does not specifically load the rescue configuration. Instead, the rescue configuration must be loaded explicitly using the request system configuration rescue save command.

C. A minimal rescue configuration is defined by default: This statement is also incorrect. While some default settings may be loaded when a rescue configuration is used, a rescue configuration is not defined by default. It must be created and customized by the network administrator to ensure that it contains the necessary elements to restore network connectivity.