he Search

Q:

Which among the following is a system call used for process management

A) fork()	B) exec()
C) getppid()	D) All the above

Answer & Explanation Answer: D) All the above

Explanation:

All the above listed are the System calls for process management

Report Error

View Answer Report Error Discuss

Filed Under: Operating Systems
Exam Prep: GATE
Job Role: Software Architect

Q:

main()

{

fork();

printf(“Hello World!”);

}

Output for the above unix program is

A) Hello World!	B) Hello World!Hello World!
C) Hello World	D) None

Answer & Explanation Answer: B) Hello World!Hello World!

Explanation:

The fork creates a child that is a duplicate of the parent process. The child begins from the fork().All the statements after the call to fork() will be executed twice.(once by the parent process and other by child). The statement before fork() is executed only by the parent process

Report Error

View Answer Report Error Discuss

Filed Under: Operating Systems
Exam Prep: GRE

Q:

Which among the following are not the children of Swapper or Scheduler?

A) Process Dispatcher	B) Vhand
C) Dbflush	D) All the above

Answer & Explanation Answer: D) All the above

Explanation:

Process Dispatcher,Vhand,Dbflush are the children of Scheduler

Report Error

View Answer Report Error Discuss

Filed Under: Operating Systems
Exam Prep: GATE

Q:

What is a shell?

Answer

A shell is an interactive user interface to an operating system services that allows an user to enter commands as character strings or through a graphical user interface. The shell converts them to system calls to the OS or forks off a process to execute the command. System call results and other information from the OS are presented to the user through an interactive interface. Commonly used shells are sh,csh,ks etc.

Workspace

Report Error

View answer Workspace Report Error Discuss

Subject: Operating Systems Exam Prep: GATE

Q:

Define authentication and authorization.

Answer

Authorization: The process of granting access privileges to resources or tasks within an

application.

Authentication: The process of validating the identity of a user.

Workspace

Report Error

View answer Workspace Report Error Discuss

Subject: .NET
Job Role: Software Architect

Q:

Which among the following validators checks if entered data matches a specific format

A) Compare validator	B) RegularExpressionValidator
C) CustomValidator	D) None

Answer & Explanation Answer: B) RegularExpressionValidator

Explanation:

RegularExpressionValidator checks if entered data matches a specific format

Report Error

View Answer Report Error Discuss

Filed Under: .NET
Job Role: Software Architect

Q:

Which among the following validators allows checking if data of one control match with other control?

A) RangeValidator	B) CompareValidator
C) RequiredFieldValidator	D) None

Answer & Explanation Answer: B) CompareValidator

Explanation:

CompareValidator allows checking if data of one control match with other control

Report Error

View Answer Report Error Discuss

Filed Under: .NET
Job Role: Software Architect

Q:

Which among the following validators validates controls if controls contain data?

A) CompareValidator	B) RangeValidator
C) RequiredFieldValidator	D) None

Searching for "he"

Quick Links