Question 31 :
Which command is used to create a directory?
- CRDIR
- MKDIR
- MD
- CR
Question 32 :
Which of the following shell scripts looping features does not recognize the break command?
- While
- Until
- For
- None of the above
Question 33 :
Which of the following command the file names in multiple columns?
- IS–X
- IS
- IS–1
- IS–f–X
Question 34 :
Which of the following commands is used for an automatic remainder service?
- Write
- Calender
- Mesg
Question 35 :
Mounting a file system results in the loading of
- Boot block
- Super block
- i-node table
- All of these
Question 36 :
Which of the following are not system calls?
- Chmod
- Open
- Lseek
- Getc
Question 37 :
Which command is used to remove a file
- Rename
- MV
- RM
- Del
Question 38 :
The sort command in UNIX
- Used to sort a file
- Used to sort the list of files in a directory
- Both A and B
- None of the above
Question 39 :
Profilers are
- Tools that analyze the run time behavior of a program
- Tools that check C code for cross file consistency
- Tools that ke= track of evolving versions of a file
- None of the above
Question 40 :
Which one of the following options is not a shell in UNIX system?
- Bourne Shell
- C Shell
- Net Shell
- Korn Shell
Question 41 :
Which of the following file names can be found in more than one directory?
- Passwd
- Bin
- Date
- None of the above
Question 42 :
Which command will be used with vi editor to append text at end of line?
- A
- i
- a
- I
Question 43 :
Files that can store data in the same format as used in program are called
- Binary files
- Source file
- Text file
- Core
Question 44 :
When a process makes a system call ,its mode changes from
- User to kernel
- Kernel to user
- Restricted to unrestricted
- Unrestricted to restricted
Question 45 :
Which of the following system calls,does not return control to the calling point, on termination?
- Fork
- Exec
- Ioct1
- Longjmp
Question 46 :
The command that can be used to restrict incoming messages to a user is
- Mesg
- Halt
- Gr=
- Sle=
Question 47 :
Which command is used with vi editor to move the cursor to the left?
- i
- k
- j
- h
Question 48 :
Which command is used with vi editor to delete a single character?
- Z
- y
- a
- x
Question 49 :
Which command is used to display the characteristics of a process?
- pid
- ps
- du
- au
Question 50 :
Which of the following tools can be used to ke= track of evolving version of a file?
- Make
- Yacc
- SCCS
- dv