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Welcome to the Sharding Concepts and Sharded Cluster MCQs Page

Dive deep into the fascinating world of Sharding Concepts and Sharded Cluster with our comprehensive set of Multiple-Choice Questions (MCQs). This page is dedicated to exploring the fundamental concepts and intricacies of Sharding Concepts and Sharded Cluster, a crucial aspect of MongoDB. In this section, you will encounter a diverse range of MCQs that cover various aspects of Sharding Concepts and Sharded Cluster, 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 Sharding Concepts and Sharded Cluster. 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 Sharding Concepts and Sharded Cluster. You can click on an option to test your knowledge before viewing the solution for a MCQ. Happy learning!

Sharding Concepts and Sharded Cluster MCQs | Page 7 of 10

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Q61.
Split empty chunks in your collection by manually performing the ______ command on chunks.

a.

distrbute

b.

split

c.

change

d.

all of the mentioned

Discuss
Answer: (b).split
Q62.
Point out the correct statement.

a.

Pre-splitting the chunk ranges in an empty sharded collection allows clients to insert data into an already partitioned collection

b.

MongoDB cannot create enough chunks or distribute data fast enough to support required throughput

c.

Chunk migration does not require copying all the data in the chunk from one shard to another

d.

All of the mentioned

Discuss
Answer: (a).Pre-splitting the chunk ranges in an empty sharded collection allows clients to insert data into an already partitioned collection
Q63.
MongoDB provides the _________ command to combine contiguous chunk ranges into a single chunk.

a.

helpchunks

b.

moveChunks

c.

mergeChunks

d.

all of the mentioned

Discuss
Answer: (c).mergeChunks
Q64.
Use ________ to determine the current chunk ranges across the cluster.

a.

sh.collects()

b.

sh.status()

c.

sh.results()

d.

all of the mentioned

Discuss
Answer: (b).sh.status()
Q65.
Point out the wrong statement.

a.

If a collection already has data, MongoDB automatically splits the collection’s data when you enable sharding for the collection

b.

Subsequent attempts to manually create splits can lead to unpredictable chunk ranges and sizes as well as inefficient or ineffective balancing behavior

c.

MongoDB creates splits only after an insert operation

d.

None of the mentioned

Discuss
Answer: (d).None of the mentioned
Q66.
__________ splits the chunk that contains the shard key value specified by the query at the chunk’s median point.

a.

sh.Find()

b.

sh.splitFind()

c.

sh.split()

d.

all of the mentioned

Discuss
Answer: (b).sh.splitFind()
Q67.
_________ splits a chunk at the shard key value specified by the query.

a.

sh.Find()

b.

sh.splitFind()

c.

sh.split()

d.

sh.splitAt

Discuss
Answer: (d).sh.splitAt
Q68.
sh.splitFind () Splits the chunk that contains the shard key value specified by the query at the chunk’s ______ point.

a.

smean

b.

stdev

c.

median

d.

all of the mentioned

Discuss
Answer: (c).median
Q69.
The mergeChunks command requires at least _______ empty input chunk.

a.

one

b.

two

c.

three

d.

all of the mentioned

Discuss
Answer: (a).one
Q70.
The chunkSize and ________ options, passed at startup to the mongos, do not affect the chunk size after you have initialized the cluster.

a.

–Size

b.

–chunkSize

c.

–chunk

d.

None of the mentioned

Discuss
Answer: (b).–chunkSize
Page 7 of 10

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