Question 1

Which of the following commands is used to identify the type of file by context?&#10;A)ls&#10;B)cat&#10;C)file&#10;D)more

Accepted Answer

The "file" command is used to determine the type of a file based on its content and metadata, making it the correct choice for identifying a file's type by context.

Question 2

The filed separator in cut command is specified with&#10;A)-a option&#10;B)-d option&#10;C)-r option&#10;D)-x option

Accepted Answer

The field separator in the cut command is specified with the -d option, which stands for delimiter. This option allows users to define the character that delimits fields in the input text.

Question 3

Which of the following options will be used to display number of blocks used by a file?&#10;A)-c&#10;B)-i&#10;C)-d&#10;D)-s

Accepted Answer

The "-s" option with the ls command is used to display the number of blocks used by a file.

Question 4

Which option will be used with touch command to change the access time?&#10;A)-a&#10;B)-b&#10;C)-t&#10;D)-h

Accepted Answer

The "-a" option with the touch command is used to change the access time of a file without modifying the modification time.

Question 5

Which command is used to make all files and sub-directories in the directory (progs) executable by all users?&#10;A)chmod -r a+xprogs&#10;B)chmod -r 222 progs&#10;C)chmod -1 a+xprogs&#10;D)chmod -x a+xprogs

Accepted Answer

The correct command to recursively make all files and sub-directories in a directory executable by all users is `chmod -R a+x progs`. However, the option provided in the question has a typo with `-r` instead of the correct `-R`. Despite this, option A is the closest to the correct syntax for achieving the described task. The correct flag for recursive operation is `-R`, and `a+x` adds execute permission for all users.

Question 6

Which command is used to display and create files?&#10;A)cat&#10;B)vi&#10;C)ed&#10;D)lyrix

Accepted Answer

The 'cat' command is used to display the contents of a file and can also be used to create files by redirecting output.

Question 7

The second set of the three permissions (r-) indicates that&#10;A)group has read permission only&#10;B)other has read permission only&#10;C)owner has read permission only&#10;D)group has write permission only

Accepted Answer

The second set of permissions in a Unix/Linux file system refers to the group permissions. "r-" indicates read permission is granted, but write and execute permissions are not.

Deck 4: Common Linux Commands and File Operations