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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 5 of 10

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Q41.
The _________ process is responsible for redistributing the chunks of a sharded collection evenly among the shards for every sharded collection.

a.

Balancer

b.

Sharder

c.

Replicator

d.

All of the mentioned

Discuss
Answer: (a).Balancer
Q42.
Point out the correct statement.

a.

Splitting is the process MongoDB uses to distribute data of a sharded collection evenly across a sharded cluster

b.

Any mongos instance in the cluster can start a balancing round

c.

When a shard has too many of a sharded collection’s chunks compared to other shards, MongoDB splits balances the chunks across the shards

d.

All of the mentioned

Discuss
Answer: (b).Any mongos instance in the cluster can start a balancing round
Q43.
Use _______ migration to distribute data during bulk inserts.

a.

automatic

b.

manual

c.

temporary

d.

all of the mentioned

Discuss
Answer: (b).manual
Q44.
The balancer process sends the _______ command to the source shard.

a.

moveChunkShard

b.

migChunk

c.

moveChunk

d.

all of the mentioned

Discuss
Answer: (c).moveChunk
Q45.
Point out the wrong statement.

a.

When fully synchronized, the destination shard connects to the config database and updates the cluster metadata with the new location for the chunk

b.

The destination shard builds any indexes required by the source that do not exist on the destination

c.

The destination shard begins requesting documents in the chunk and starts receiving copies of the data

d.

None of the mentioned

Discuss
Answer: (d).None of the mentioned
Q46.
The source shard is responsible for incoming ______ operations for the chunk.

a.

read

b.

write

c.

read-write

d.

all of the mentioned

Discuss
Answer: (b).write
Q47.
________ can alter the behavior so that the delete phase of the current migration blocks the start of the next chunk migration.

a.

_waitForUpdate

b.

_waitForDelete

c.

_waitForInsert

d.

All of the mentioned

Discuss
Answer: (b)._waitForDelete
Q48.
The default value _________ becomes true for all chunk migrations.

a.

secThrottle

b.

secondaryThrottle

c.

primaryThrottle

d.

all of the mentioned

Discuss
Answer: (b).secondaryThrottle
Q49.
You can set the _________ option on the balancer configuration to set different write concern semantics.

a.

writeConcern

b.

updateConcern

c.

readConcern

d.

all of the mentioned

Discuss
Answer: (a).writeConcern
Q50.
With __________ enabled, the source shard archives the documents in the migrated chunks in a directory named after the collection namespace.

a.

sharding.archiveChunks

b.

sharding.archiveMovedChunks

c.

shard.archiveMovedChunks

d.

none of the mentioned

Discuss
Answer: (b).sharding.archiveMovedChunks
Page 5 of 10

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