MCQ IN COMPUTER SCIENCE & ENGINEERING

COMPUTER SCIENCE AND ENGINEERING

CLOUD COMPUTING

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
The ____ executes the Mapper/ Reducer task as a child process in a separate jvm.
A
JobTracker
B
TaskTracker
C
TaskScheduler
D
None of the mentioned
Explanation: 

Detailed explanation-1: -The TaskTracker executes the Mapper/ Reducer task as a child process in a separate jvm. The child-task inherits the environment of the parent TaskTracker. The user can specify additional options to the child-jvm via the mapred.

Detailed explanation-2: -Job − A program is an execution of a Mapper and Reducer across a dataset. Task − An execution of a Mapper or a Reducer on a slice of data.

Detailed explanation-3: -A TaskTracker is a slave node daemon in the cluster that accepts tasks (Map, Reduce and Shuffle operations) from a JobTracker.

Detailed explanation-4: -Explanation: JobTracker : Schedules jobs and tracks the assign jobs to Task tracker. 6. Which of the following is used for an execution of a Mapper or a Reducer on a slice of data? Explanation: Task : An execution of a Mapper or a Reducer on a slice of data.

There is 1 question to complete.