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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 6 of 10

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Q51.
The ________ collection stores a document for each change to the metadata of a sharded collection.

a.

version

b.

changelog

c.

settings

d.

all of the mentioned

Discuss
Answer: (b).changelog
Q52.
Point out the correct statement.

a.

The local database supports sharded cluster operation

b.

The config database is a dependable API, and users should not write data to the config database in the course of normal operation or maintenance

c.

Modification of the config database on a functioning system may lead to instability or inconsistent data sets

d.

All of the mentioned

Discuss
Answer: (c).Modification of the config database on a functioning system may lead to instability or inconsistent data sets
Q53.
The _________ collection stores a document for each sharded collection in the cluster.

a.

help

b.

shards

c.

collections

d.

all of the mentioned

Discuss
Answer: (c).collections
Q54.
You can return a list of the collections, with the following helper ______________

a.

show collects

b.

show collection

c.

show collections

d.

all of the mentioned

Discuss
Answer: (c).show collections
Q55.
Point out the wrong statement.

a.

Database servers store the metadata for a sharded cluster

b.

Always back up the config database before doing any maintenance on the config server

c.

The mongos instances cache metadata and use it to route read and write operations to shards

d.

None of the mentioned

Discuss
Answer: (a).Database servers store the metadata for a sharded cluster
Q56.
________ is a string that holds the address of the client, a mongos instance that initiates this change.

a.

config.changelog.serverAddr

b.

config.changelog.clientAddr

c.

config.changelog.time

d.

all of the mentioned

Discuss
Answer: (b).config.changelog.clientAddr
Q57.
The _______ collection keeps track of the active components in the sharded cluster.

a.

deploys

b.

lockpings

c.

locks

d.

all of the mentioned

Discuss
Answer: (b).lockpings
Q58.
If the collection is empty then MongoDB will create the index as part of the ________

a.

shardCollectionkey()

b.

shardCollection()

c.

keyCollection()

d.

all of the mentioned

Discuss
Answer: (b).shardCollection()
Q59.
Changing the _______ option will change the port that mongod listens for incoming connections on.

a.

–shardsrvkey

b.

–shardsrv

c.

–shard

d.

All of the mentioned

Discuss
Answer: (b).–shardsrv
Q60.
The _____________ collection holds documents for each tagged shard key range in the cluster.

a.

tags

b.

databases

c.

version

d.

none of the mentioned

Discuss
Answer: (a).tags
Page 6 of 10

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