TheModel-Driven Command Line Interface (MD-CLI)in Nokia SR OS provides a structured and programmatic way to manage configurations. It is based on atransactional model, meaning changes are made in a candidate configuration before being committed to the running configuration.
Let's review each statement:
* A. It allows atomic transactions-#True. MD-CLI uses atomic transactions to apply multiple changes at once, ensuring consistency and rollback if a failure occurs.
* B. Configuration changes are activated when the running configuration datastore is saved to a file
-#False. In MD-CLI, changes are committed to therunning datastorewhen a user issues the commit command,not when saving to a file. Saving to a file is a separate action (e.g., admin save) and doesnot trigger configuration activation.
* C. To achieve transactional configuration, it is necessary to have multiple configuration datastores
-#True. MD-CLI usescandidate,running, andoperationaldatastores to implement transaction-based configuration.
* D. Multiple users may enter the global configuration mode concurrently-#True. MD-CLI supports multi-user accessto global configuration with locking mechanisms to prevent conflicts.
Reference:
Nokia SR OS MD-CLI User Guide
Nokia SRA Study Guide - Chapter: "Model-Driven Configuration and Transactions"