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DBMS_7th_ch10

Authored by Rajendren Subramaniam

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DBMS_7th_ch10
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21 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is one of the motivations for Big Data?

Driven by growth of web, social media, and internet-of-things

Data is stored in a single machine

Data volumes are very small

Only relational data is handled

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What are the three main characteristics that differentiate Big Data from earlier generation databases?

Volume, Velocity, Variety

Speed, Accuracy, Efficiency

Relational, Non-relational, Hierarchical

Structured, Unstructured, Semi-structured

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What are the key components of Big Data storage systems?

Parallel databases, Data coherency, Query processing systems

Distributed file systems, Shardring, Key-value storage systems

Transactional processing systems, Query processing systems, Distributed file systems

Single file system view, Replicated storage, High scalability

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the purpose of sharding in Big Data storage systems?

To support non-relational data

To provide a single file-system view

To partition data across multiple databases

To replicate data across multiple machines

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which system is an example of a distributed file system for large data-intensive applications?

Google File System (GFS)

Hadoop File System (HDFS)

Apache Cassandra

Amazon DynamoDB

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the block size typically used in Hadoop File System (HDFS)?

256 MB

128 MB

64 MB

32 MB

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the main advantage of using key-value storage systems?

Support for transactional updates

Support for joins and integrity constraints

Efficient handling of relational data

Ability to store large numbers of small records

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