Quiz

Database Fundamentals

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Quiz

Question 1

Which of the following algorithms is widely used for achieving consensus?

A

Two-Phase Locking

B

Bloom Filters

C

Paxos

D

Round-Robin Scheduling

Question 2

What is Raft primarily used for?

A

Ensuring database isolation levels

B

Simplifying leader-based consensus in distributed systems

C

Reducing network latency in communication

D

Maintaining distributed key-value stores

Question 3

What is the main challenge addressed by leader election strategies?

A

Selecting a leader node to coordinate tasks in distributed systems

B

Reducing redundant data writes

C

Synchronizing clocks across nodes

D

Assigning unique identifiers to nodes

Question 4

In the Bully algorithm for leader election, which node becomes the leader?

A

The first node to send an election message

B

The node with the lowest ID

C

The node with the lowest latency

D

The node with the highest ID

Question 5

What is the purpose of the Two-Phase Commit (2PC) protocol?

A

To ensure all nodes agree before committing a transaction

B

To replicate data across nodes for fault tolerance

C

To reduce network latency during data transfers

D

To elect a leader node for coordination

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