Тест по компьютерным наукам

Which of the following is an input device?

• Monitor

• Keyboard

• Printer

• Speaker

Answer explanation

A keyboard is an input device used to enter data into a computer. In contrast, a monitor, printer, and speaker are output devices that display, produce, or project information.

Which of the following is an operating system?

• Microsoft Word

• Windows 10

• Google Chrome

• Adobe Photoshop

Answer explanation

Windows 10 is an operating system developed by Microsoft, managing hardware and software resources. In contrast, Microsoft Word, Google Chrome, and Adobe Photoshop are applications that run on operating systems.

What is the purpose of the "findstr" command?

• Find specific lines in the output of a command

• Find and move files to another directory

• Find and replace text in a file

• Find and display the contents of a directory

Answer explanation

The 'findstr' command is used to search for specific strings or patterns in the output of commands or files. This makes it useful for filtering results, which aligns with the correct choice of finding specific lines in command output.

What does the abbreviation CPU stand for?

• Central Processing Unit

• Computer Power Supply

• Control Processor

• Central Program

Answer explanation

The abbreviation CPU stands for Central Processing Unit, which is the primary component of a computer that performs most of the processing inside the system. The other options do not accurately represent this key component.

What does the abbreviation RAM stand for?

• Read Access Memory

• Random Access Memory

• Run Access Memory

• Remote Memory

Answer explanation

The correct answer is 'Random Access Memory' because RAM is a type of computer memory that can be accessed randomly, allowing data to be read and written in any order. The other options are incorrect definitions.

What port is used to connect a keyboard or mouse?

• USB

• HDMI

• VGA

• Ethernet

Answer explanation

The correct port for connecting a keyboard or mouse is USB. USB ports are standard for these devices, while HDMI and VGA are used for video output, and Ethernet is for network connections.

What does the abbreviation URL stand for?

• Uniform Resource Locator

• Universal Reading Language

• User Request Link

• Unified Resource Link

Answer explanation

The correct answer is 'Uniform Resource Locator' as it accurately defines a URL, which is a reference to a web resource. The other options do not represent the standard definition of a URL.

Which of the following is a web browser?

• Microsoft Excel

• Mozilla Firefox

• Notepad

• Windows Media Player

Answer explanation

Mozilla Firefox is a web browser, allowing users to access and navigate the internet. In contrast, Microsoft Excel is a spreadsheet application, Notepad is a text editor, and Windows Media Player is a media player.

What does the "assoc" command show?

• List of available commands

• Contents of a text file

• Associated file types with programs

• IP address of the computer

Answer explanation

The 'assoc' command displays the file types associated with programs on a system. This helps users understand which applications will open specific file extensions, making it the correct choice.

What command is used to display the IP configuration?

• ipconfig

• ping

• netstat

• tracert

Answer explanation

The command 'ipconfig' is used in Windows to display the IP configuration of the network interfaces. It provides details such as IP address, subnet mask, and default gateway, making it the correct choice for this question.