CompTIA TestOut Questions Flashcards
Actual questions from each chapter of the TestOut IT Fundamentals PRO Course (44 cards)
Which of the following is a type of input device?
Speakers
Monitor
Touchscreen
Hard drive
Touchscreen
(Input devices are used to physically put information into the computer)
Which of the following is data temporarily stored on?
Printed page
Hard drive
Memory chips
Keyboard
Memory chips
(Data can be stored temporarily on memory chips–that is often considered to be part of processing)
A user has entered a search string into an application and clicked on the search icon. Which of the following is the NEXT step in the computer process?
Storage
Input
Output
Processing
Processing
(Processing occurs after input has been provided to a computer. In this case, the user’s input was a text string and mouse click. Processing takes the mouse click on the search icon to start the search process)
Which of the following lists the basic computing and processing steps in order?
Input, retrieval, processing, and storage
Input, processing, output, and storage
Input/output, processing, and storage
Input, retrieval, output, and storage
Input, processing, output, and storage
(Retrieval is not a basic part of the process)
Which of the following provides a computer system with the ability to retrieve and manipulate data at a future time?
Storage
Processing
Transistor
Microchip
Storage
(Storage is where output data is retained for later use)
Which of the following was the most widely used personal computer application until the mid-90s?
Games
Word processing
Internet
US census
Word processing
(World wide web took its place once released to the public)
Which invention made it possible to have an entire computer on a single circuit board?
Silicon
Vacuum tubes
Transistors
Microchip
Microchip
(Invented in 1959 by Jack Kirby, the microchip did this. This made computers much smaller and cheaper to manufacture)
What invention allowed computers to become smaller in size?
Transistors
(Invented in 1947, they replaced bulky vacuum tubes and mechanical relays, making computers smaller)
What is the order of major events in computer history?
- Herman Hollerith develops the electronic tabulating machine (1890)
- International Business Machines, or IBM, is formed (1911)
- Scientists at Bell Laboratories invent the transistor (1947)
- Jack Kilby invents the microchip (1959)
- The Apple II is released for home consumers (1977)
- The WWW becomes available to the public (1994)
- Apple releases the iPhone (2007)
What played vital roles in the advancement of national defense, science, and social change?
Supercomputers
(They have processing capabilities designed to solve problems that are too complex for regular computers)
How is the number 22 represented in binary?
10110
An example of a MAC address is 00-B0-D0-C2-26
What is the notational system used?
Hexadecimal
(Hexadecimal system uses sixteen digits - numbers 0-9 and letters A-F)
1010101.71
What number system is represented?
Decimal
What is the highest value in the hexadecimal number system?
F
How many bits are in a single byte?
Eight
What is the smallest size to the largest?
Kilobyte, Megabyte, Gigabyte, Terabyte
A consumer wants to add a hard drive to their computer to store video from their camera. What is the storage capacity of a modern disk drive (HDD) purchased from a computer store?
3 terabytes
Which of the following transfer rates is the FASTEST?
1.24 Gbps
181 Mbps
1,282 Kbps
1,480 Mbps
1,480 Mbps
This is equal to 1.48 Gbps, so it is faster than 1.24 Gbps
Which of the following BEST describes what a kilobyte is a measurement of?
CPU speed
Data throughput
Storage space
Power level
Storage space
(Data storage usually refers to the number of bytes)
Which of the following encoding schemes would MOST likely be used to represent an emoji?
ASCII
Unicode
Hexadecimal
Binary
Unicode
(Unicode is an international 16-bit encoding standard and is capable of representing millions of different characters with enough space for every character from every human language. Developers have even started assigning Unicode values to pictures, called emoji)
Digital sound recordings capture sound waves and divide them into distinct segments. Each segment is assigned a value. What is that value called?
Sampling height
(Sound is caused by vibrating objects which create pressure waves in the air. Digital sound recordings capture this continuous wave and divide it into distinct segments. The recording then assigns a value to each segment. A single segment’s value is called its sample height)
How many possible values would an 8-bit audio sample have?
256
(Bit depth is the amount of memory used to store each value of a sample. 8-bit sound uses 8 bits (or 1 byte) to store the value of each sample, which means the sample can be 1 of 256 values)
Which of the following makes videos appear smoother and more fluid?
Higher resolution
Lower frame rate
Higher frame rate
Lower resolution
Higher frame rate
(The frame rate is the measure of how many images, or frames, are shown each second. A higher frame rate makes videos appear smoother and more fluid than a lower frame rate)
Which of the following is a lossless compression algorithm?
MP4
Run-length encoding
PNG
Compression artifact
Run-length encoding
