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Welcome to the Optimization Strategies for MongoDB MCQs Page

Dive deep into the fascinating world of Optimization Strategies for MongoDB with our comprehensive set of Multiple-Choice Questions (MCQs). This page is dedicated to exploring the fundamental concepts and intricacies of Optimization Strategies for MongoDB, a crucial aspect of MongoDB. In this section, you will encounter a diverse range of MCQs that cover various aspects of Optimization Strategies for MongoDB, from the basic principles to advanced topics. Each question is thoughtfully crafted to challenge your knowledge and deepen your understanding of this critical subcategory within MongoDB.

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Check out the MCQs below to embark on an enriching journey through Optimization Strategies for MongoDB. Test your knowledge, expand your horizons, and solidify your grasp on this vital area of MongoDB.

Note: Each MCQ comes with multiple answer choices. Select the most appropriate option and test your understanding of Optimization Strategies for MongoDB. You can click on an option to test your knowledge before viewing the solution for a MCQ. Happy learning!

Optimization Strategies for MongoDB MCQs | Page 3 of 8

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Q21.
The _______ migrates chunks of documents in a sharded collection to the shards associated with a tag.

a.

balancer

b.

compounder

c.

fixer

d.

all of the mentioned

Discuss
Answer: (a).balancer
Q22.
MongoDB 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

Discuss
Answer: (b).rs.conf()
Q23.
Point out the wrong statement.

a.

Read preferences consider the value of a tag when selecting a member to read from

b.

Shard ranges are always exclusive of the lower value and inclusive of the upper boundary

c.

Write concerns do not use the value of a tag to select a member except to consider whether or not the value is unique

d.

None of the mentioned

Discuss
Answer: (c).Write concerns do not use the value of a tag to select a member except to consider whether or not the value is unique
Q24.
By default, an application directs its ______ operations to the primary member in a replica set.

a.

read

b.

write

c.

read and write

d.

none of the mentioned

Discuss
Answer: (a).read
Q25.
Which of the following should not be used to provide extra capacity for reads?

a.

primary

b.

primaryPreferred

c.

secondary

d.

none of the mentioned

Discuss
Answer: (c).secondary
Q26.
Read preference modes are also available to clients connecting to a sharded cluster through ______________

a.

MMS

b.

mongos

c.

mongod

d.

none of the mentioned

Discuss
Answer: (b).mongos
Q27.
All read preference modes except _______ may return stale data.

a.

primary

b.

primaryPreferred

c.

secondary

d.

none of the mentioned

Discuss
Answer: (a).primary
Q28.
Which of the following preference does not affect the visibility of data?

a.

read

b.

write

c.

read and write

d.

none of the mentioned

Discuss
Answer: (a).read
Q29.
Which of the following collections work in a way similar to circular buffers?

a.

Capped

b.

Secondary

c.

Sharded

d.

All of the mentioned

Discuss
Answer: (a).Capped
Q30.
Point out the correct statement.

a.

Capped collections automatically remove the oldest documents in the collection without requiring scripts or explicit remove operations

b.

Capped collections do not guarantee that insertion order is identical to the order on disk

c.

Capped collections does not allow updates that fit the original document size

d.

All of the mentioned

Discuss
Answer: (a).Capped collections automatically remove the oldest documents in the collection without requiring scripts or explicit remove operations
Page 3 of 8

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