Question 1

In context of HDFS file system, Point out the wrong statement.

Accepted Answer

A) replication factor can be configured at a cluster level (default is set to 3) and also at a file level 
B) block report from each datanode contains a list of all the blocks that are stored on that datanode 
C) user data is stored on the local file system of datanodes 
D) datanode is aware of the files to which the blocks stored on it belong to

Question 2

The dynamic replication algorithm takes into account

Accepted Answer

A) to reduce load on server 
B) files on server can be migrated anywhere 
C) schedule process migration 
D) resource sharing

Question 3

To improve performance, many distributed systems

Accepted Answer

A) combine check pointing with recovery oriented computing 
B) combine check pointing with message logging 
C) combine check pointing with distributed commit 
D) combine distributed commit with message logging.

Question 4

In Casual consistency model all processes shared accesses in

Accepted Answer

A) random order 
B) same order 
C) sequential order 
D) specific order

Exam 3: Distributed Systems and File System

In context of HDFS file system, Point out the wrong statement.

The dynamic replication algorithm takes into account

To improve performance, many distributed systems

In Casual consistency model all processes shared accesses in