Which of the following document configures the threshold which determines whether a query is â€œslowâ€ for the purpose of the logging system?

MongoDB - Quiz(MCQ)

systemLog

systemLog.verbosity

operationProfiling.mode

operationProfiling.slowOpThresholdMs

Correct Answer : operationProfiling.slowOpThresholdMs

Explanation : systemLog.verbosity controls the amount of logging output that mongod write to the log.

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_______ disable balancing on a single collection in a sharded database.

TagRange()

sh._checkMongos()

sh.removeTagRange()

sh.disableBalancing()

Correct Answer : sh.disableBalancing()

Explanation : sh.disableBalancing() does not affect balancing of other collections in a sharded cluster.

____ activates the sharded collection balancer process if previously disabled using sh.disableBalancing().

sh.enableSharding()

sh.enableBalancing()

sh.getBalancerHost()

All of the above

Correct Answer : sh.getBalancerHost()

Explanation : sh.enableSharding() enables sharding on a specific database.

_______ returns a boolean to report if the balancer is currently enabled.

sh.enableBalancing()

sh.getBalancerState()

sh.getBalancerHost()

None of the above

Correct Answer : sh.getBalancerState()

Explanation : sh.getBalancerState() returns true when the balancer is enabled and false if the balancer is disabled.

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