WPF

Who developed the Linux ? 1. charls babbage 2. Linus Torvalds 3. Alan Turing 4. none

Linus Torvalds

what is knoppix ? 1. CD version of the Linux 2. Version of the Linux 3. properties of linux 4. none

CD version of the Linux

What terminology is not used in the Linux ? 1. Shell 2. Process 3. File 4. Folder

Folder

What do you mean by Linux utilities ? 1. System software 2. application software 3. Both 4. none

System software

Why we use the Shell? 1. communication media between user and Linux OS 2. communication media between user and Hardware 3. communication media between user and Application 4. none

communication media between user and Linux OS

What is the System Call in linux? 1. Function 2. predefined function 3. properties 4. none

predefined function

How many types of the shell in Linux ? 1. one 2. two 3. three 4. four

Three

Three types of shell in Linux are: Bourne again shell(bash), korn shell(ksh), c shell(csh).

Why we use this ps command in linux? 1. generates a list of processes and their attributes 2. generates a list of Action and their attributes 3. generates a list of processer and their attributes 4. none

generates a list of processes and their attributes

Why we use the kill command? 1. stop process 2. terminate the process 3. wait the process 4. none

Terminate the process

Why we use the Wait command? 1. wait for one processes to terminate 2. wait for one of its child processes to terminate 3. wait for one of its child processes to start 4. none

wait for one of its child processes to terminate

Why we use the eval command? 1. executes the output of command as a regular shell command 2. causes the shell's image to be replaced with command in the process' memory space. 3. causes all of the positional parameters $2..$n to be renamed $1..$(n-1), and $1 to be lost. 4. none

executes the output of command as a regular shell command

Why we use the exec command? 1. executes the output of command as a regular shell command 2. causes the shell's image to be replaced with command in the process' memory space. 3. causes all of the positional parameters $2..$n to be renamed $1..$(n-1), and $1 to be lost. 4. none

causes the shell's image to be replaced with command in the process' memory space.

Why we use the shift command? 1. executes the output of command as a regular shell command 2. causes the shell's image to be replaced with command in the process' memory space. 3. causes all of the positional parameters $2..$n to be renamed $1..$(n-1), and $1 to be lost. 4. none

causes all of the positional parameters $2..$n to be renamed $1..$(n-1), and $1 to be lost.

Why we use the umask command?1. sets the shell's umask value to the specified octal number, or displays the current umask value if the argument is omitted2. causes the shell\'s image to be replaced with command in the process\' memory space.3. causes all of the positional parameters $2..$n to be renamed $1..$(n-1), and $1 to be lost.4. none

sets the shell's umask value to the specified octal number, or displays the current umask value if the argument is omitted

which facilities are provided by the kernel ? 1. memory management 2. process management 3. interprocess communication (IPC) 4. all

all

what are the tasks not done by system administrator ? 1. starting and stopping Linux 2. maintaining the file system 3. maintaining the user a/cs 4. Compilation of program

Compilation of program

what does the trap command do ? 1. specify the time of execution of any command 2. specify the command 3. specify the time 4. none

specify the time of execution of any command

can functions be exported to subshells ? 1. True 2. False

True

what does the cd commands do ? 1. use for enter the directory 2. use for change the directory 3. use for create the directory 4. none

use for enter the directory

why we use passwd command? 1. create password 2. change password 3. find password 4. none

change password