MongoDB Online Test

1. 13

2. 16

3. 12

4. 10

Correct Answer : C

1. 3

2. 4

3. 2

4. 1

Correct Answer : A

1. $catch

2. $match

3. $batch

4. All of the mentioned

Correct Answer : B

1. 2000

2. 2005

3. 2009

4. 2011

Correct Answer : C

1. 2MB

2. 16MB

3. 12MB

4. No limit.Depends on RAM

Correct Answer : B

1. Yes

2. No

Correct Answer : B

1. mongoshell

2. mongodump

3. mongolocaldump

4. none of the mentioned

Correct Answer : B

1. emit()

2. emitter()

3. emitted()

4. none of the mentioned

Correct Answer : A

1. jsMode

2. scope

3. finalize

4. min

Correct Answer : A

1. 1

2. 2

3. 3

4. 4

Correct Answer : C

1. _id

2. Ob_id

3. id

4. None of the above

Correct Answer : A

1. it

2. next

3. cur

4. none of the mentioned

Correct Answer : A

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. Python

2. JavaScript

3. SQL

4. TypeScript

Correct Answer : B

1. collection

2. collation

3. heap

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. commitIntervMs

2. commitInterval

3. commitIntervalMs

4. all of the mentioned

Correct Answer : C

1. Aggregation pipeline have some limitations on value types and result size

2. The aggregation pipeline is a framework for data aggregation modeled on the concept of data processing pipelines

3. Documents enter a multi-stage pipeline that transforms the documents into an aggregated results

4. All of the mentioned

Correct Answer : D

1. Non Relational databases require that schemas be defined before you can add data

2. NoSQL databases are built to allow the insertion of data without a predefined schema

3. NewSQL databases are built to allow the insertion of data without a predefined schema

4. all

Correct Answer : A

1. Create a text index on each field.

2. MongoDB is not able to do this.

3. Create a compound text index using both fields.

4. Create a text index on one field and a single field index on the other.

Correct Answer : A

1. Multikey Index

2. Compound Index

3. Text Index

4. Sparse Index

Correct Answer : A

1. findOne()

2. findOne1()

3. selectOne()

4. all of the mentioned

Correct Answer : A

1. SQL

2. XML

3. BSON

4. All of the mentioned

Correct Answer : C

1. finally

2. final

3. static

4. none of the mentioned

Correct Answer : A

1. 2

2. 3

3. 4

4. 5

Correct Answer : B

1. Databases

2. Related documents

3. Schema

4. Rows

Correct Answer : B

1. plan

2. shape

3. stats

4. all of the mentioned

Correct Answer : B

1. MongoDB

2. JSON

3. CASSANDRA

4. Both A and C

Correct Answer : D

1. $unwindelem

2. $unwind

3. $unwin

4. None of the mentioned

Correct Answer : C

1. mongod

2. mongos

3. mongo

4. mongoc

Correct Answer : A