86. Which of the following is an example of a computer input/output device?
a) scanner
b) printer
c) touchscreen
d) all of the above
Answer: d) all of the above (an input/output device is a hardware component that can both input and output data or information, such as scanners
87. What is the purpose of computer network topology?
a) to store data
b) to process data
c) to display data
d) to describe the physical or logical layout of a computer network
Answer: d) to describe the physical or logical layout of a computer network (network topology is the physical or logical layout of a computer network, including components like nodes, links, and protocols)
88. Which of the following is an example of a computer input device?
a) printer
b) keyboard
c) speaker
d) all of the above
Answer: b) keyboard (an input device is a hardware component that allows users to enter data or instructions into a computer, such as keyboards, mice, or touchpads)
89. What is the purpose of computer encryption?
a) to store data
b) to process data
c) to display data
d) to protect data by encoding it to prevent unauthorized access or theft
Answer: d) to protect data by encoding it to prevent unauthorized access or theft (encryption is the process of encoding data or information to protect it from unauthorized access or theft)
90. Which of the following is an example of a computer output device?
a) mouse
b) printer
c) scanner
d) all of the above
Answer: b) printer (an output device is a hardware component that displays or presents data or information from a computer, such as printers, displays, or speakers)
