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Welcome to the ZooKeeper,Sqoop and Cassandra MCQs Page

Dive deep into the fascinating world of ZooKeeper,Sqoop and Cassandra with our comprehensive set of Multiple-Choice Questions (MCQs). This page is dedicated to exploring the fundamental concepts and intricacies of ZooKeeper,Sqoop and Cassandra, a crucial aspect of Hadoop. In this section, you will encounter a diverse range of MCQs that cover various aspects of ZooKeeper,Sqoop and Cassandra, 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 Hadoop.

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Check out the MCQs below to embark on an enriching journey through ZooKeeper,Sqoop and Cassandra. Test your knowledge, expand your horizons, and solidify your grasp on this vital area of Hadoop.

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

ZooKeeper,Sqoop and Cassandra MCQs | Page 6 of 11

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Q51.
A __________ determines which data centers and racks nodes belong to it.

a.

Client requests

b.

Snitch

c.

Partitioner

d.

None of the mentioned

Discuss
Answer: (b).Snitch
Q52.
User accounts may be altered and dropped using the __________ Query Language.

a.

Hive

b.

Cassandra

c.

Sqoop

d.

None of the mentioned

Discuss
Answer: (b).Cassandra
Q53.
Authorization capabilities for Cassandra use the familiar _________ security paradigm to manage object permissions.

a.

COMMIT

b.

GRANT

c.

ROLLBACK

d.

None of the mentioned

Discuss
Answer: (b).GRANT
Q54.
Client-to-node encryption protects data in flight from client machines to a database cluster using ___________

a.

SSL

b.

SSH

c.

SSN

d.

All of the mentioned

Discuss
Answer: (a).SSL
Q55.
Using ___________ file means you don’t have to override the SSL_CERTFILE environmental variables every time.

a.

qlshrc

b.

cqshrc

c.

cqlshrc

d.

none of the mentioned

Discuss
Answer: (c).cqlshrc
Q56.
Internal authentication stores usernames and bcrypt-hashed passwords in the ____________ table.

a.

system_auth.creds

b.

system_auth.credentials

c.

system.credentials

d.

sys_auth.credentials

Discuss
Answer: (b).system_auth.credentials
Q57.
A _________ grants initial permissions, and subsequently a user may or may not be given the permission to grant/revoke permissions.

a.

keyspace

b.

superuser

c.

sudouser

d.

none of the mentioned

Discuss
Answer: (b).superuser
Q58.
__________ is one of many possible IAuthorizer implementations and the one that stores permissions in the system_auth.permissions table to support all authorization-related CQL statements.

a.

CassandraAuth

b.

CassandraAuthorizer

c.

CassAuthorizer

d.

All of the mentioned

Discuss
Answer: (b).CassandraAuthorizer
Q59.
Cassandra creates a ___________ for each table, which allows you to symlink a table to a chosen physical drive or data volume.

a.

directory

b.

subdirectory

c.

domain

d.

path

Discuss
Answer: (b).subdirectory
Q60.
When ___________ contents exceed a configurable threshold, the memtable data, which includes indexes, is put in a queue to be flushed to disk.

a.

subtable

b.

memtable

c.

intable

d.

memorytable

Discuss
Answer: (b).memtable
Page 6 of 11

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