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WGU C182 EXAM/57 QUESTIONS AND ANSWERS/100% VERIFIED
WGU C182 EXAM/57 QUESTIONS AND ANSWERS/100% VERIFIED
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WGU C182 EXAM/57 QUESTIONS ANDANSWERS/100% VERIFIED
Application Software - -Programs end users run to accomplish tasks.
-Productivity Software - -Application software used to aid in productivity. I.E.
Presentation software, word processor, spreadsheets.
-Internet Usage Software - -Email, FTP client, web browser
-System Software - -Consists of programs that make up the OS and directly
support system itself.
**Includes services or DAEMONS
-Server Software - -Works with hardware to provide network service.
-Local Application - -Software stored on an individual computer.
-Intranet - -A LAN that uses IP. Used to communicate within organization.
-Cloud Computing - -Allows organization to access resources/app anywhere,
anytime. Beneficial because an org. may access resources it may not
normally have.
-Operating Systems - -Allows a user to easily access hardware/software,
required to maintain computer environment.
-Kernel - -Core component of OS.
Loads when computer first boots
Sits on top of hardware, is interface b/w hardware and software.
-Device Drivers - -Interface b/w OS and hardware.
-Shell - -Interface for user, often personalized. The shell provides access to
the kernel.
I.E. The GUI will translate mouse motions into calls to kernel/routines.
Desktop elements include shortcuts, windows theme, menus, background.
-Services (Daemons) - -OS programs that start when OS is loaded. They run
in the background and wait for an event to initiate.
-Utility Programs - -Allow user to monitor system performance.
-Web Server - -Role is to respond to HTTP requests.
, *Most HTTP requests are for HTML docs, but could include any web
accessible resource.
It's all combined into the URL.
**APACHE is most popular web server-can execute scripts for dynamic
pages, use security mechanisms, log request for trend tracking.
-Proxy Server - -Acts as a giant cache and allows pages accessed frequently
in an organization to be accessed locally.
*Also provides degree of anonymity, since IP address recorded is for proxy
server and not individual client.
*Can also be used to block requests to certain servers (i.e Facebook)
*Can reject responses that contain certain content (i.e "porn")
**SQUID is most common, but APACHE can also be used as proxy server.
-Database Server - -Permits dB access across a network.
Performs tasks such as data analysis, data manipulation, security,and
archiving.
May/may not store database itself.
**MySQL is popular.
-FTP Server - -Hosts files and allows clients access to files.
Access is in form of uploading/downloading files.
Requires either user has an account or logs in as anonymous user.
-File Server - -Computer with large hard disk storing files, but can also store
software to be run over network.
-Email Server - -Provides email service.
Accepts email request from clients.
IMAP,POPS,HTTP,MAPI,MIME
-String Data - -Alphanumeric or text
Ex: James (Last name)
623 Hill Street
-Number Integer - -Numeric data, whole numbers.
Ex: 4
-Floating Point - -Decimal.
Ex: 4.2
-Date/Time - -Type of Data
-Boolean/Logical - -Type of Data.
Ex: True/False (in reply to active subscriber?)
Only two possible answers: yes/no or true/false
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