Which of the following represents number of times the operation acquir – InterviewSolution

InterviewSolution

1.	Which of the following represents number of times the operation acquired the lock in the specified mode?(a) system.profile.locks.acquireCount(b) system.profile.locks.acquireWaitCount(c) system.profile.locks.Count(d) none of the mentioned
Answer» Right answer is (a) system.profile.locks.acquireCount To elaborate: system.profile.locks.acquireWaitCount is number of times the operation had to wait for the acquireCount lock acquisitions because the locks were held in a conflicting mode. acquireWaitCount is less than or equal to acquireCount.

Discussion

No Comment Found

Related InterviewSolutions

Point out the wrong statement.(a) Client libraries provide a convenient, injection free, process to build these objects(b) MongoDB represents queries as BSON objects(c) Field names in MongoDB’s query language have semantic meaning(d) All of the mentioned
Which of the collection in GridFS stores the binary chunks?(a) chunks(b) files(c) data(d) log
How many does collections GridFS use to store files?(a) 1(b) 2(c) 3(d) 4
Each document in the __________ collection represents a distinct chunk of a file as represented in the GridFS store.(a) chunks(b) files(c) bson(d) none of the mentioned
Which of the following document represents uncaught exception?(a) 45(b) 49(c) 47(d) 100
__________ is a command-line utility to import content from a JSON, CSV, or TSV.(a) mongorestore(b) mongofiles(c) mongosupport(d) mongoimport
The ___________ 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
To generate pseudo-random data to use for a keyfile, issue the following __________ command.(a) openhss(b) openssd(c) openssl(d) all of the mentioned
_id is a ________ bytes hexadecimal number which assures the uniqueness of every document.(a) 13(b) 16(c) 12(d) 10
Backup can also create snapshots of _________ that are run as single-member replica sets.(a) documents(b) standalones(c) backups(d) none of the mentioned