Q. Which of the following command obtains a global write lock and will block other operations until it has completed?

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Q. Which of the following collection do not support the TTL property?

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Q. Point out the correct statement.

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Q. If the indexed field in a document is not a _____ or an array that holds a date value(s), the document will not expire.

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Q. Point out the correct statement.

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Q. Secondary members replicate _________ operations from the primary.

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Q. A collection with a TTL index has __________ enabled.

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Q. Which field does not support TTL indexes?

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Q. You cannot use _________ to change the value of expireAfterSeconds of an existing index.

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Q. You cannot create a TTL index on a ________ collection.

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Q. Which of the following setting defines what constitutes a “slow” operation?

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Q. Point out the correct statement.

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Q. ________ provide the number of times the lock acquisitions encountered deadlocks.

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Q. If __________ is high relative to uptime, the database has existed in a lock state for a significant amount of time.

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Q. Point out the wrong statement.

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Q. The __________ data structure value provides more granular information concerning the number of operations queued because of a lock.

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Q. serverStatus includes all fields by default, except _________

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Q. ______ field contains total number of current clients that connect to the database instance.

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Q. MongoDB’s _______ is a database profiling system that can help identify inefficient queries and operations.

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Q. With the _______ storage engine, MongoDB uses memory-mapped files to store data.

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