a) systemLog.verbosity b) operationProfiling.mode c) operationProfiling.slowOpThresholdMs d) none of the mentioned Answer: c Explanation: systemLog.verbosity controls the ...
View QuestionOn Linux, use the ______ command to check if disk I/O is a bottleneck for your database.
a) stat b) iostats c) iostat d) none of the mentioned Answer: c Explanation: Specify the number ...
View QuestionWhich of the following represents Shared lock?
a) R b) w c) r d) W Answer: a Explanation: W represents Exclusive (X) lock.
View QuestionMongoDB stores tag sets in the replica set configuration object, which is the document returned by _____
a) rs.config() b) rs.conf() c) rs.confstats() d) all of the mentioned Answer: b Explanation: Custom read preferences ...
View QuestionWhen the TTL thread is active, you will see _______ operations in the output of db.currentOp().
a) read b) update c) delete d) all of the mentioned Answer: c Explanation: When you ...
View QuestionPoint out the correct statement.
a) MongoDB distributions are currently available for Mac OS X, Linux, Windows Server 2012, Windows Server 2008 R2 ...
View QuestionThe _________ field provides the amount of resident memory in use.
a) mem.resident b) memory.resident c) mem.resident d) all of the mentioned Answer: c Explanation: If this exceeds ...
View QuestionThe ___________ collection stores custom roles that administrators create and assign to users to provide access to specific resources.
a) admin.system.role b) admin.system.roles c) admin.system.roleasign d) all of the mentioned Answer: b Explanation: System collections include ...
View QuestionPoint out the correct statement.
a) In MongoDB 3.0, cursor.explain() returns the indexOnly field to indicate whether the index covered a query b) ...
View Question________ contains a counter of the total number of clients with active operations in progress or queued.
a) globalLock.active b) localLock.activeClients c) globalLock.activeClients d) all of the mentioned Answer: c Explanation: The activeClients data ...
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