WGU C182 INTRODUCTION TO IT OBJECTIVE ASSESSMENT EXAM
WESTERN GOVERNORS UNIVERSITY NEWEST EXAM COMPLETE 450
QUESTIONS AND CORRECT DETAILED ANSWERS (VERIFIED ANSWERS)
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A collection of components that work together to meet the needs of the user;
typically : CATEGORIZED AS EITHER HARDWARE, SOFTWARE, NETWORKS AND
USERS
COMPUTER SYSTEM
Physical components of a computer system which include the system unit and its
components and peripheral devices; TANGIBLE ASPECTS OF THE COMPUTER
HARDWARE
A collection of computers and resources CONNECTED by various media so that
they can COMMUNICATE WITH EACH OTHER.
NETWORK
Systems Software and Applications Software
SOFTWARE CATEGORIES
RULES provided by WHICH NETWORKS communicate with each other
IP PROTOCOL
STORES the programs BEING EXECUTED and the data they are using.
COMPUTER MEMORY
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, WGU C182 INTRODUCTION TO IT OBJECTIVE ASSESSMENT
Controls THE SPEED at which instructions are processed.
SYSTEM CLOCK
Stands for Random Access Memory. It temporarily stores data before it is
processed and sent to your screen or printer. IT IS VOLATILE (means data or
information stored disappears when the computer is turned off or loses power).
RAM
Transistor components, magnetic core memory, smaller size, easier to program,
disk drives and drums, called mainframe computers
2nd Generation of Computers
Silicon chips (known as ICs - integrated circuits), reduced cost, called mini
computers, networks introduced via dumb terminals
3rd Generation of Computers
Written for a specific machine by the engineers who built and ran the computers;
no need for OS since only one program could run at a time
Low-level Language
Easier than machine but still required detailed, precise LOW LEVEL instructions
Assembly Language
Function is to TRANSLATE ONE LANGUAGE TO ANOTHER; take source code and
convert it to another form; source code by itself cannot be read by a computer
Language Translator Programs
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Programmer is limited to high level control constructs such as while loops, for
loops, and if/else statements and not allowed to use primitive GOTO statements
Structured Programming
A type of programming language for which most of its implementations EXECUTES
INSTRUCTIONS DIRECTLY AND FREELY, without previously compiling a program
into machine-language instructions.
Interpreted Language (Code)
Small programs that place Linux commands or DOS batch files into a file
Shell Scripting
The computer that the user is using; physically present with
Local Computer
Connects computers to each other with NO REAL UNDERSTANDING OF WHAT IS
BEING TRANSFERRED Used for private networks with local computers.
Network Hub
Like a hub, but this will only send data that is INTENDED FOR SPECIFIC COMPUTER
Network Switch
Can be connected to hub, switch, or router; many routers now also act as a
wireless access point; sends out a wireless signal so computers on the network
can connect without a cable
Wireless Access Point
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Contains one or more servers; client is a computer that will request information
from another computer; server is a computer that takes requests and responds
with the requested information; the software used facilitates communication with
remote servers
Client-server Network
First users were the engineers who built and programmed computers, then
employees who had received specialized training were users, and now today,
anyone and everyone can be a user.
Evolution of Users
Sends files over the network at the request of clients. Responds over LAN, within
one location/site. Support both application software and data files.
FILE SERVER
Turns a user-friendly domain name, like Google.com, into an Internet Protocol (IP)
address like ((( 70.42.251.42 ))) that computers use to identify each other on the
network.
Domain Name Server (DNS)
Uses TWO KEYS a public and private key for performing encryption and decryption
Public Key Encryption
PROVING you are who you say you are which can be done by: what you know,
what you have!
Authentication
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