2.1 Computer Hardware
Which types of connector is commonly used for keyboards and mice? (Select two.)
1) USB Port
2) Wireless
Which of the following operating systems is a special version of Linux developed by Google?
Android
Which application is better for creating presentations?
Powerpoint or Google slides.
What is the service called that lets you store data in a remote location over the internet?
Cloud storage
Cloud storage, also known as the cloud, is the service that lets you store data in a remote location over the internet. When you save something to the cloud, you're really saving it to someone else's computer.
Which network type uses light pulses to transmit data?
Fiber Optic
Fiber optic networks transmit light pulses rather than electricity to communicate.
Satellite networks use radio signals sent to and received from a satellite.
Cable networks use a cable TV connection and electric signals to send data.
Wireless networks use radio waves for sending network data within a local area network.
Which of the following are advantages of a desktop computer? (Select two.)
Which kind of system software tells the computer how to communicate with peripherals, such as a printer or scanner?
Device Driver
Which Microsoft Office program is used to create spreadsheets?
Excel
What are the designations at the end of file names such as .docx and .html called?
File Extensions
On Windows, a file extension comes at the end of the file name (such as .docx and .html) and determines which application will be used by default to open the file.
Files are used to store information on a computer's storage devices. Every file has two attributes that uniquely identify it from other files on the same system:
To keep information organized, files can be sorted into different folders.
Which of the following internet technologies provides the FASTEST transmission speed?
Fiber Optic
Fiber optic provides the fastest transmission speed, as signals are transmitted at the speed of light using lasers or LED light sources.
Cable and DSL rely on a copper media to transmit electrical signals which are less than the speed of light.
Cellular uses wireless radio signals to transmit data which is typically rate limited by the provider.
What is an operating system, give an example.
the primary software that manages a computer's hardware and software resources, acting as an interface between the user and the machine.
Examples: Windows and Mac OS
Which kind of system software is preinstalled on electronic products like blenders, automobiles, and televisions?
What kind of software guards against malware and viruses?
Antivirus software.
If you select a file on the desktop and press delete on your keyboard, what happens to the file?
It is moved to the recycle bin.
The deleted file is moved to the Recycle Bin. From there, it can either be restored to its original location or permanently removed from the computer.
You live in a rural area and don't have a nearby wired network to connect to the internet.
What could you use to connect to the internet?
Satellite
Satellite communication technology uses a satellite dish to send and receive signals to and from an orbiting satellite. Satellite internet does not use telephone lines, cable systems, or other wired networks.
Fiber optic, cable, and DSL (Digital Subscriber Line) connections are not options in this scenario because they require wired connections through an ISP.
Which of the following allows you to convert physical documents and pictures into digital files on a computer?
Scanner
Which category of system software provides a platform for application software to run on?
Operating system
Which of the following allows you to exit a running application? (Select two.)
With the application window selected, press Alt + F4.
In the application's menu bar, select File > Exit.
There are several ways to exit a running program.
Which permission option allows a user view files but not change them?
Read
Read or Read Only permissions allows all users view the data, but not change it.
Read/Write, Administrator, and Owner roles all have permission to change files.
Which protocol is used to identify resources and transfer hypertext pages on the World Wide Web?
HTTP (Hyper Text Makeup Language)
The Hypertext Transfer Protocol (HTTP) is used to identify resources and transfer hypertext pages on the World Wide Web.
The Domain Name System (DNS) matches unique IP addresses with easy-to-read URLs.
The Internet Protocol (IP) is used to route information over the internet.
The Transmission Control Protocol (TCP) adds a header to each IP packet.
What 5 hardware components of a desktop computer?
Central processing unit CPU
Graphical processing unit GPU
Random Access Memory RAM
Monitor
Keyboard
Mouse
Disk cleaners, antivirus software, backup software, and compression software are what kind of system software?
Utility Software
Utility software analyzes, configures, and optimizes the computer. It includes software such as disk cleaners, antivirus software, backup software, and compression software.
Which installation method is MOST likely to put your computer at risk of downloading a virus?
Internet Installations
Downloading things from online.
Which of the following uses special memory chips to store data?
Flash Drive
Flash storage uses special memory chips to store data. You can remove power from a flash storage device and its contents will remain intact.
The hard disk drive (HDD) is usually larger and includes magnetic disks encased in a protective housing to store data.
Compact discs and optical drives use microscopic light and dark spots on the bottom surface of the disc to store computer data.
Which of the following stores organized data that lets clients use queries to add, remove, or change data as appropriate?
Database servers store databases, which are huge repositories of organized data. Clients can also use queries to add, remove, or change data as appropriate.
Mail servers provide email service to a network.
Web servers store web pages as hypertext documents.
Gaming servers keep track of events in multiplayer video games.