Server Administration

A security audit requires that sensitive document data contained in query parameters must not be written to the MongoDB system logs. Which server configuration setting should be enabled?

A DBA executes 'mongodump --oplog' against a primary node in a replica set. What is the specific purpose of the --oplog flag in this administrative context?

An administrator wants to audit all authentication attempts on a MongoDB Enterprise instance. Which feature should be configured to track these events?

Which TWO of the following are valid reasons to use an arbiter in a MongoDB replica set?

A database is experiencing high latency. You run 'mongotop 5'. What specific insight does this provide compared to 'mongostat' for server administration?

A server has multiple network interfaces including a public IP and a private management IP. How should the 'net.bindIp' configuration be managed to follow security best practices?

A DBA is configuring a replica set with three members: one primary and two secondaries. The DBA wants to ensure that a write concern of { w: 'majority' } is acknowledged only after the write has been applied to a majority of voting members and has been written to the on-disk journal on those members. Which write concern should the DBA use?

A DBA needs to grant a new application service account the ability to read and write data in any database except the admin database on a MongoDB 6.0 replica set. The account should not be able to perform administrative actions such as managing users or shutting down the server. Which built-in role should the DBA assign?

When enabling access control on a production sharded cluster, what is the most secure method for ensuring internal authentication between cluster components such as mongos and mongod instances?

Refer to the exhibit. What is the implication of setting the priority of n2 to 0?

In a dedicated server environment, what is the primary reason an administrator would choose to manually decrease the 'storage.wiredTiger.engineConfig.cacheSizeGB' below the default value?

A MongoDB DBA is asked to ensure that the mongod process on a Linux server automatically restarts if it crashes. The server uses systemd. Which command should the DBA run to enable this behavior?

Which THREE metrics provided by the 'mongostat' utility are most helpful for identifying a performance bottleneck caused by a high volume of concurrent write operations?

Refer to the exhibit. The MongoDB process has crashed due to a storage engine error. What is the most immediate administrative action required to restore service?

During a peak load period, the 'page faults' metric in mongostat increases significantly. What is the most likely administrative cause related to server resources?

A DBA needs to automate log rotation on a Linux-based MongoDB server without restarting the mongod process. Which signal or command should be used to ensure the current log file is archived and a new one is started?

You are monitoring a MongoDB replica set and notice that the replication lag on a secondary is increasing steadily. You suspect that the secondary is unable to keep up with the write load. Which administrative action should you take first to diagnose the issue?

Which command is used to verify the current replica set configuration and the state of all members?

A developer reports slow queries on a specific collection. You decide to enable the database profiler to capture only queries taking longer than 200ms. Which command configuration achieves this?

Refer to the exhibit. An administrator attempts to recover a corrupted standalone mongod instance using the --repair flag. Based on the error log output, what is the most appropriate next step for the administrator?

An administrator needs to create a restricted user for a third-party monitoring tool. The user must be able to perform backups and monitor server status but cannot read actual document data. Which TWO built-in roles should be combined?

When adding a new node to an existing replica set, what is the primary factor that determines how quickly the new member will be able to begin participating in elections?

A MongoDB 6.0 replica set is experiencing performance issues during peak hours. The DBA notices that the primary is spending significant time on disk I/O. The DBA wants to identify which collections are generating the most disk reads and writes. Which administrative command should the DBA use?

Which configuration file setting is used to specify the network interface and port that a mongod instance listens on?

What is the consequence of having a replica set with only two nodes and no arbiter?

A MongoDB replica set has three members: a primary and two secondaries. The DBA needs to perform maintenance on the primary node without causing an election that could lead to data loss. The maintenance requires stopping the mongod process for 30 minutes. Which step should the DBA take first to ensure the primary steps down gracefully and a secondary takes over?