Unix 5

An operating system can be viewed as a software that manages hardware and software
resources of a computer system.
True False

Increased resource utilization leads to increase in system throughput.
True False

The absolute pathname of a file in UNIX is with respect to the

An option argument in a UNIX command modifies the behavior of the option
True False

Dennis Ritchie Ken Thomson C 1969 DEC PDP-7 — What comes to mind?

The predominant mode of interaction with UNIX is text-based.
True False

Machine cycle has three states: fetch decode execute.
True False

The UNIX swap-in decision is based on secondary storage residency time—the longer a process resides on disk the lower its priority.
True False

An editor buffer and a file on disk are exactly the same thing.
True False

The pico editor is distributed free with the pine e-mail system.
True False

Operating systems that allow users to interact with their executing programs are known as
interactive systems.
True False

Which keystroke Command Mode command in vi allows you to enter Last Line Mode?

UNIX is a graphics-driven operating system.
True False

UNIX/Linux routines that communicate directly with the hardware are spread throughout the
operating system.
True False

UNIX does not support password-based protection.
True False

Which character in vi allows you to go from Insert Mode to Command Mode?

The cd .. command makes the following as your new current directory

A space character is optional between the option and the option argument
True False

UNIX is a direct descendent of MULTICS and direct ancestor of LINUX.
True False

System bus consists of three buses: control bus data bus and register bus.
True False

UNIX was written in