MongoDB Online Test

1. $match

2. $project

3. $projectmatch

4. All of the mentioned

Correct Answer : B

1. mongo

2. master

3. test

4. primary

Correct Answer : C

1. jsMode

2. scope

3. finalize

4. min

Correct Answer : A

1. mongo.js

2. mongoc.js

3. mongorc.js

4. all of the mentioned

Correct Answer : C

1. graph

2. key value

3. document

4. all of the mentioned

Correct Answer : C

1. CRUD

2. GRID

3. READ

4. All of the mentioned

Correct Answer : A

1. $match moves before $sort

2. $sort moves before $match

3. MongoDB does not do any movements by default and will use the order provided

4. Providing these parameters in any order does not impact the performance

Correct Answer : A

1. Table and Row

2. Table and Column

3. Column and Row

4. Database and Table

Correct Answer : A

1. it

2. next

3. cur

4. none of the mentioned

Correct Answer : A

1. Variables can hold any BSON type data

2. Aggregation expressions can use both user-defined and system variables

3. To access the value of the variable, use a string with the variable name prefixed with double dollar signs ($$)

4. None of the mentioned

Correct Answer : C

1. finalize

2. filter

3. procedure

4. none of the mentioned

Correct Answer : A

1. Timeout

2. noTimeout

3. Time

4. None of the mentioned

Correct Answer : B

1. Multikey Index

2. Compound Index

3. Text Index

4. Sparse Index

Correct Answer : A

1. $setcon

2. $group

3. $match

4. None of the mentioned

Correct Answer : B

1. db.explain()

2. cursor.explain()

3. cursor.explainstats()

4. all of the mentioned

Correct Answer : B

1. Secondary indices are not available in MongoDB

2. MongoDB supports search by field, range queries, regular expression searches

3. MongoDB can store the business subject in the minimal number of documents

4. All of the mentioned

Correct Answer : A

1. find

2. move

3. shell

4. replace

Correct Answer : A

1. Javascript

2. C

3. C++

4. All of the mentioned

Correct Answer : D

1. 13

2. 16

3. 12

4. 10

Correct Answer : C

1. commitIntervMs

2. commitInterval

3. commitIntervalMs

4. all of the mentioned

Correct Answer : C

1. MongoDB is classified as a NoSQL database

2. MongoDB favours XML format more than JSON

3. MongoDB is column oriented database store

4. All of the mentioned

Correct Answer : A

1. $setcon

2. $group

3. $match

4. None of the mentioned

Correct Answer : C

1. finally

2. final

3. static

4. none of the mentioned

Correct Answer : A

1. emit()

2. emitter()

3. emitted()

4. none of the mentioned

Correct Answer : A

1. explainstats()

2. explain()

3. explainall()

4. all of the mentioned

Correct Answer : B

1. primary

2. secondary

3. composite

4. all of the mentioned

Correct Answer : A

1. plan

2. shape

3. stats

4. all of the mentioned

Correct Answer : B

1. toStringJava()

2. toString()

3. String()

4. none of the mentioned

Correct Answer : B

1. while (var i = 1; i <= 25; i++) 
   {
        db.testData.insert( { x : i } )
   }

    

2. for (var i = 1; i <= 25; i++) 
   {
      db.testData.insert( { x : i } )
   }

    

3. for (var i = 1; i <= 25; i++)
   {
      db.testData.inserts( { x : i } )
   }

    

4. None of the mentioned

Correct Answer : B

1. findOne()

2. findOne1()

3. selectOne()

4. all of the mentioned

Correct Answer : A