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WGU C182 Introduction to IT Questions with Complete Solutions
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WGU C182 Introduction to IT Questionswith Complete Solutions
Information Technology - Correct Answer- The technology used in creating, maintaining,
and making information accessible.
IT Professional Roles - Correct Answer- Administration and Support
System Administrator - Correct Answer- Maintains all aspects of the system including
hardware, software, and programming.
Network Administrator - Correct Answer- In charge of all aspects of the computer
network
Database Administrator - Correct Answer- Focuses on the design, development, and
support of database management systems (DBMSs).
Security Administrator - Correct Answer- Installs, configures, and administers firewall
security to protect systems and proactively work to stop intrusions.
Web Administrator - Correct Answer- Installs, configures, maintains, secures, and
troubleshoots web severs.
Support IT Professionals - Correct Answer- Help desk and training.
Information - Correct Answer- Processed data.
DIKW Hierarchy - Correct Answer- Defines the transition of data to information to
knowledge to wisdom. (Data Information Knowledge Wisdom)
Data in DIKW - Correct Answer- The input directly received by the user (or computer). It
is generally not usable until it has been converted into a relevant form.
Information in DIKW - Correct Answer- Having been inferred from data; one or more
processes have been applied to the data to transform it into a more useful form.
Knowledge in DIKW - Correct Answer- Information that has been put to use; information
placed into a context. Refined information such that the user of the knowledge is able to
call forth only relevant portions of information when needed.
Wisdom in DIKW - Correct Answer- Provides a social setting to knowledge; an
understanding of the "why". Can only come by having both knowledge and experience.
,Information Systems - Correct Answer- A collection of data and information used to
support the management of an organization. Also refers to the technical components
and human resources that enable the assembly, storage, and processing of data and
the delivery of information. This has existed for a lot longer than computers.
Characteristics of Quality Data - Correct Answer- Relevance - the data being used must
apply directly to the decision being made
Timely - data must be efficient and must be provided in a timely manner
Thorough - the data must be complete
Accurate - data should be captured only once, where possible and should be captured
as close to the point of activity as possible.
Reliable - data should reflect stable and consistent data collection processes across
collections points and over time
IPOS - Correct Answer- The Input-Procession-Output-Storage Cycle
Input - Correct Answer- Raw data is entered by the user.
Processing - Correct Answer- Raw data is organized or structured for usefulness.
Output - Correct Answer- Information is output so user can see results.
Storage - Correct Answer- Processed information is stored for permanent record.
Computer System - Correct Answer- A collection of components that work together to
meet the needs of the user; typically categorized as either hardware, software,
networks, or users.
Hardware - Correct Answer- Physical components of a computer system which include
the system unit and its components and peripheral devices; tangible aspects of the
computer.
Software - Correct Answer- Computer programs that tell the computer what to do--how
to execute commands and process information
Network - Correct Answer- A collection of computers and resources connected by
various media so that they can communicate with each other.
User - Correct Answer- Those who use a computer.
Software Categories - Correct Answer- Systems Software and Applications Software
, Evolution of Users - Correct Answer- 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.
Protocol - Correct Answer- Rules provided by which networks communicate with each
other.
TCP/IP - Correct Answer- Transmission Control Protocol/Internet Protocol. Most
commonly used protocol; is required of all computers that communicate over the
Internet.
Protocol Stack - Correct Answer- A collection of protocols. TCP/IP is an example.
Components of a Computer - Correct Answer- CPU, Memory and Storage, Peripheral
Devices
CPU - Correct Answer- Executes programs' instructions and commands various
components in the computer. Referred to as the "chip".
Memory - Correct Answer- Stores the programs being executed and the data they are
using.
I/O Subsystem - Correct Answer- All peripheral devices where long term storage
devices are used.
Bus - Correct Answer- Permits information to move between each component; electrical
channels that enable communication among the electronic components
System Unit - Correct Answer- Critical component of all computer based systems;
consists of most of the hardware the computer needs in order to run; comes in a variety
of shapes and sizes.
Internal Components of the System Unit - Correct Answer- Case, Internal Bays, Buses,
Ports, Hard Drive, Motherboard, CPU, CPU Cooler, Memory Module (RAM), Power
Supply Unit (PSU), Expansion Slots/Cards
Parts of the CPU - Correct Answer- Control Unit (CU) - retrieves the instructions and the
raw data that is input and coordinates or controls the sending of those instructions and
data to the ALU
Arithmetic Logic Unit (ALU) - does the actual processing of the data; completing
mathematical calculations and logical operations to process the data and converting the
input of the keyboard text entry to output displayed on the screen
System Clock - Correct Answer- Controls the speed at which instructions are
processed.
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