COPA Module 5 : DOS & LINUX Operating Systems

What is the name of hierarchical file system in DOS?

• Tree structure

• Root structure

• Hybrid structure

• Directory structure

Answer explanation

The name of the hierarchical file system in DOS is the Tree structure, where files and directories are organized in a tree-like format.

Which DOS command is used to delete a directory?

• RD

• REMOVE

• DEL

• DELETE

Answer explanation

The DOS command used to delete a directory is RD, which stands for Remove Directory.

Which character is used to represent parent directory in Linux?

• .

• ..

• ~

• *

Answer explanation

The correct character used to represent the parent directory in Linux is '..'.

Which character is used to redirect output in to an existing file in Linux?

• >

• >>

• <

• <<

Answer explanation

The correct character used to redirect output into an existing file in Linux is '>'.

Which command is used to specify the location of files or folders in MSDOS?

• dir

• path

• sub directories

• tree

Answer explanation

The 'path' command is used to specify the location of files or folders in MSDOS.

How the directories under the root directory are called?

• dir

• path

• sub directories

• tree

Answer explanation

The directories under the root directory are called sub directories.

Which filename will matches the command. DIR????T.TxT in DOS?

• TIME . TXT

• TEXT . TXT

• TEMP . TXT

• TEMPT . TxT

Answer explanation

The filename 'TEMPT . TxT' matches the command DIR????T.TxT in DOS because it has the correct number of characters and ends with 'T.TxT'.

What is the use of CD command in DOS?

• create a directory

• change the device name

• create root directory

• change the path of current directory

Answer explanation

The CD command in DOS is used to change the path of the current directory, allowing the user to navigate through different directories within the system.

What is the maximum number of character allowed as file name in DOS?

• 3 characters

• 6 characters

• 7 characters

• 8 characters

Answer explanation

The correct answer is 8 characters. In DOS, the maximum number of characters allowed in a file name is 8 characters.

Which one of the following is the wildcard character?

• * and /

• ? and /

• * and ?

• ? and @

Answer explanation

The wildcard characters are * and ?, which are commonly used in search patterns to represent any sequence of characters or a single character respectively.