A user does a chmod operation on a file. Which of the following is true?
1.The last accessed time of the file is updated
2.The last modification time of the file is updated
3.The last change time of the file is updated
4.None of the mentioned
Posted Date:-2021-06-28 14:55:19
Any files attribute information is stored in which structure on the disk
1. Inode
2.Data blocks
3.File blocks
4.Directory file
Posted Date:-2021-06-28 14:55:19
 All device files are stored in which directory?
1./etc
2./bin
3./dev
4./usr
Posted Date:-2021-06-28 14:55:19
Binary or executable files are:
1.Regular files
2.Device files
3.Special files
4.Directory files
Posted Date:-2021-06-28 14:55:19
Effective group id can be set using following permission
1.0777
2.2666
3.4744
4.1711
Posted Date:-2021-06-28 14:55:19
Effective user id can be set using following permission
1.0777
2.2666
3.4744
4.1711
Posted Date:-2021-06-28 14:55:19
Executing the cd .. command when at the root level causes
1.Error message indicating the user cant access beyond the root level
2.Behavior is unix-flavor dependent
3.Results in changing to the home directory
4.Nothing happens
Posted Date:-2021-06-28 14:55:19
How do you add (append) a file file1 to the example.tar file
1.no you cannot add a file to example.tar
2.tar -cvf example.tar file1
3.tar -rvf file1 example.tar
4.tar -evf file1 example.tar
Posted Date:-2021-06-28 14:55:19
How do you rename file new to file old ?
1.mv new old
2.move new old
3.cp new old
4.rn new old
Posted Date:-2021-06-28 14:55:19
How to execute ls command inside a vi editor?
1.!ls
2.ls
3.:!ls
4.we can’t execute
Posted Date:-2021-06-28 14:55:19
If a file is removed in Unix using rm then
1.The file can be recovered by a normal user
2.The file cannot be recovered by a user
3.The file can be fully recovered provided the sytem is not rebooted
4.The file will be moved to /lost+found directory and can be recovered only by administrator’s intervention
Posted Date:-2021-06-28 14:55:19
If the umask value is 0002. what will be the permissions of new directory
1.777
2.775
3.774
4.664
Posted Date:-2021-06-28 14:55:19
If user tries to remove (rm) a readonly file (444 permission), what will happen?
1.The file is removed successfully (and silently)
2.The rm command prompts for a confirmation, the command is successful upon confirmation
3.The rm command prompts for a confirmation, however the operation fails because of insufficient permissions
4.The rm command fails because of insufficient permissions
Posted Date:-2021-06-28 14:55:19
pwd command displays
1.user password
2.password file content
3.present working directory
4.none of the mentioned
Posted Date:-2021-06-28 14:55:19
sed is a command typically used for
1.Perform complex calculations
2.Perform FIFO based non-blocking I/O
3.Modify/print selective contents of a file
4.None of the mentioned
Posted Date:-2021-06-28 14:55:19
srwxr-xrw- is a
1.internet socket file
2.unix domain socket file
3.symbolic link
4.shared file
Posted Date:-2021-06-28 14:55:19
Sticky bit can be set using following permission
1.777
2.2666
3.4744
4.1711
Posted Date:-2021-06-28 14:55:19
The command syntax to display the file sample.txt one page at a time is
1.man sample.txt>more
2.cat sample.txt<more
3.cat sample.txt|more
4.none of the mentioned
Posted Date:-2021-06-28 14:55:19
The directory file contains:
1.File names & File Sizes
2.File names & Inode Numbers
3.File names & Address
4.File names & Permissions
Posted Date:-2021-06-28 14:55:19
The file permission 764 means:
1.Every one can read, group can execute only and the owner can read and write
2.Every one can read and write, but owner alone can execute
3.Every one can read, group including owner can write, owner alone can execute
4.Every one can read and write and execute
Posted Date:-2021-06-28 14:55:19
The permission -rwSr–r– represented in octal expression will be
1. 0777
2.2666
3.4744
4.4644
Posted Date:-2021-06-28 14:55:19
The permission -rwxr-sr– represented in octal expression will be
1.0777
2.2766
3.2744
4.2754
Posted Date:-2021-06-28 14:55:19
The permission -rwxr-xr-t represented in octal expression will be
1.777
2.1755
3.1754
4.2754
Posted Date:-2021-06-28 14:55:19
The permission -rwxr–r– represented in octal expression will be
1.777
2.666
3.744
4.711
Posted Date:-2021-06-28 14:55:19
To open a file file1 with cursor at line number 4
1.vi +num file1
2.vi +set num file1
3.vi + set num file1
4.vi +/se nu file1
Posted Date:-2021-06-28 14:55:19
What command is used to copy files and directories?
1.copy
2.cp
3.rn
4.cpy
Posted Date:-2021-06-28 14:55:19
What communication command provides communication to another user logged on by writing to the bottom of their terminal?
1.talk
2.write
3.chat
4.transmit
Posted Date:-2021-06-28 14:55:19
What is the command to set the execute permissions to all the files and subdirectories within the directory /home/user1/direct
1.chmod –r +x /home/user1/direct
2.chmod –R +x /home/user1/direct
3.chmod –f –r +x /home/user1/direct
4.chmod –F +x /home/user1/direct
Posted Date:-2021-06-28 14:55:19
When mv f1 f2 is executed which files inode is freed?
1.f1
2.f2
3.new inode will be used
4.no inode is freed
Posted Date:-2021-06-28 14:55:19
When you use the ln command, which of the following occurs?
1.a file is created that points to an existing file
2.a file is created that is a copy of an existing file
3.a file is moved from one location to another
4.a file is renamed
Posted Date:-2021-06-28 14:55:19
Which are the two types of device files?
1.Character & Block
2.Character & Socket
3.Block & FIFO
4.Input & output
Posted Date:-2021-06-28 14:55:19
Which command gives the first byte where the difference is in the file1 & file2?
1.diff
2.cmp
3.comm
4.ls -a
Posted Date:-2021-06-28 14:55:19
Which command is used to display all the files including hidden files in your current and its subdirectories ?
1.ls –aR
2.ls –a
3.ls –R
4.Is –l
Posted Date:-2021-06-28 14:55:19
Which command is used to set limits on file size
1.fsize
2.flimit
3.ulimit
4.usize
Posted Date:-2021-06-28 14:55:19
Which command will you use to see the available routes?
1.show route
2.route status
3.netstat -r
4.none of the mentioned
Posted Date:-2021-06-28 14:55:19
Which directory contain device special files?
1./etc
2./etc/dev
3./root/bin
4./dev
Posted Date:-2021-06-28 14:55:19
Which is an example for block special file?
1.Virtual Terminal
2.CD-ROM
3.Terminal
4.Serial modem
Posted Date:-2021-06-28 14:55:19
Which is an example for character special file?
1.Hard disk
2.CD-ROM
3.Terminal
4.Memory
Posted Date:-2021-06-28 14:55:19
Which of the following commands can be used to change default permissions for files and directories at the time of creation
1.Chmod
2.Chown
3.Umask
4.Chgrp
Posted Date:-2021-06-28 14:55:19
Which of the following commands can be used to copy files across systems?
1.ssh
2.telnet
3.rsh
4.ftp
Posted Date:-2021-06-28 14:55:19
Which of the following commands will allow the user to search contents of a file for a particular pattern
1.touch
2.grep
3.find
4.ls
Posted Date:-2021-06-28 14:55:19
Which of the following is not a valid file type on Linux
1.Socket
2.Softlink
3.Inode
4.FIFO
Posted Date:-2021-06-28 14:55:19
Which of the following is not correct statement regarding file types?
1.Hard links share same inode number
2.Soft links cannot be created across partitions
3.Socket files are Unix domain sockets
4.Character file is a special file
Posted Date:-2021-06-28 14:55:19
Which of the following time stamps need not exist for a file on traditional unix file system
1.Access Time
2.Modification Time
3.Creation Time
4.Change Time
Posted Date:-2021-06-28 14:55:19
Which one shows the name of the operating system?
1.uname -n
2.uname -r
3.uname -o
4.uname –m
Posted Date:-2021-06-28 14:55:19
Which option of rmdir command will remove all directories a, b, c if path is a/b/c
1.–b
2.–o
3.–p
4. –t
Posted Date:-2021-06-28 14:55:19
Which represents the user home directory
1. /
2. .
3...
4. ~
Posted Date:-2021-06-28 14:55:19
Which screen manipulation command sets the screen back to normal?
1.tput cup
2.tput smso
3.tput rmso
4.tput blink
Posted Date:-2021-06-28 14:55:19
Which tar command option is used to list the files in a tape archive format?
1.cvf
2.tvf
3.xvf
4.ovf
Posted Date:-2021-06-28 14:55:19
Write the command to display the current date in the form dd/mm/yyyy.
1.date +%d/%m/%Y
2.date +â€%d/%m/%Yâ€
3.date +/%d/%m/20%y
4.date +â€/%d/%m/20%yâ€
Posted Date:-2021-06-28 14:55:19