OPSY Learning unit 2

A strength of UNIX is its true multitasking capabilities.

• True

• False

Active Directory groups machines into administrative units called ____.

• domains

• sites

• networks

• nodes

Before the 1995 release of the Windows 95 operating system, all Windows products were merely graphical user interfaces that required the MS-DOS operating system to perform tasks.

• True

• False

In Windows terminology, the privileged processor mode is called ____ mode and the nonprivileged processor mode is called user mode.

• server

• kernel

• internal

• computer

he Windows Task Manager can be opened by pressing and holding the ____ keys together.

• Ctrl, W, and T

• Ctrl, Alt, and Esc

• Ctrl, Alt, and Delete

• Alt and Tab

The ____ command is used to delete a file or directory in UNIX.

• rm

• mv

• del

• erase

The command ____ is used to find a specified string of characters in a file.

• cp

• mv

• grep

• ls

The command, ____ , will copy the contents of chapt1 and chapt2 into a file named section_a.

• section_a = chapt1 + chapt2

• cp chapt1 section_a, cp chapt2 section_a

• cat chapt1 chapt2 > section_a

• ls chapt1, chapt2, section_a

The original development goals for UNIX were twofold: to develop an operating system that would support software development, and to keep its algorithms as simple as possible.

• True

• False

To accommodate the various needs of its user community, and to optimize resources, the Windows team identified the following design goals:____.

• extensibility, portability, reliability, compatibility, and performance

• security, portability, reliability, and performance

• security, expandability, compatibility, and cost-effectiveness

• portability, interoperability, and performance