Operating System

21.……. is an intermediate storage for deleted files.
a.
b.
c.
d.

Option “C” is correct.
In computing, the Trash (also known as the Recycle Bin in Windows and by other names in other operating systems ) is temporary storage for files that have been deleted in a file manager by the user, but not yet permanently erased from the file system. Typically, a recycle bin is presented as a special file directory to the user, allowing the user to browse deleted files, undelete those that were deleted by mistake, or delete them permanently (either one by one, or by the “Empty Trash” function).
22.We can start the application from?
a.
b.
c.
d.Run

Option “D” is correct.
On the Microsoft Windows operating system, the Run command is used to directly open an application or document whose path is known. It functions more or less like a single-line command line interface.
23.Which of the following is not process states?
a.New
b.Running
c.Ready
d.Finished

Option “D” is correct.
Finished is a not process state. Ready State– A state in which a process is ready and waiting for its execution. Blocked State– A state in which a process doesn’t execute until and unless a process event occurs, like completion of an Input/output operation. Running State– A state in which the process is currently executing.
24.In DOS, the maximum length of filename is-
a.5
b.8
c.11
d.10

Option “B” is correct.
The older MS-DOS FAT file system supports a maximum of 8 characters for the base file name and 3 characters for the extension, for a total of 12 characters including the dot separator. This is commonly known as an 8.3 file name.
25.The question mark (?) indicates in file searching
a.
b.
c.Questions
d.

Option “A” is correct.
Sometimes abbreviated as char, a character is a single visual object used to represent text, numbers, or symbols. For example, the letter “A” is a single character. With a computer, one character is equal to one byte, which is 8 bits.
26.Which is not external command?
a.Doskey
b.Verify
c.Print
d.Find

Option “B” is correct.
An external command is an MS-DOS command that is not included in command.com. External commands are commonly external either because they require large requirements or are not commonly used commands. Related external command pages. MS-DOS and Windows command line help and support.
27.What is the method of handling deadlocks?
a.
b.
c.
d.

Option “D” is correct.
The strategy of deadlock prevention is to design the system in such a way that the possibility of deadlock is excluded. Use a protocol to ensure that the system will never enter a deadlock state. Allow the system to enter the deadlock state and then recover.
28.To delete a file without allowing it to store in recycle bin-
a.
b.
c.
d.

Option “B” is correct.
To delete a file without allowing it to store in recycle bin Press Shift + Delete key. Shift + Delete are used to delete the selected item permanently without placing the item in the Recycle Bin.
29.Operating system is a ……
a.
b.
c.
d.

Option “A” is correct.
An operating system (OS) is system software that manages computer hardware and software resources and provides common services for computer programs.
30.To display a shortcut menu for an object you use-
a.
b.
c.
d.

Option “B” is correct.
To display a shortcut menu for an object you use Right click the object. The type of text it displays or the type of text you are asked to provide depends on the application or the situation.