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Which of the following devices extends the range of a network?
Answer : D
An access point extends the range of a wireless network by allowing more devices to connect and by covering additional physical areas. The other options serve different purposes:
Modem connects to the internet,
Server provides services,
Host firewall protects a device but does not extend network range.
A user is unable to load the most recent version of a web page. The old page loads each time the screen is refreshed. Which of the following would the user most likely do to resolve the issue?
Answer : C
Clearing the cache removes stored versions of web pages that the browser may be reloading instead of fetching the latest version. This is the most likely fix when a web page displays outdated content.
Profile sync, extensions, and pop-up blockers are unrelated to loading cached pages.
Which of the following can be used to input commands for a computer to execute?
Answer : D
A console (or command-line interface) allows users to input commands for the computer to execute directly.
Other options:
Services run background tasks,
Attributes describe properties of objects,
Process refers to a running program, not a command input method.
Which of the following actions would help a user validate a website's certificate on a browser?
Answer : A
Clicking the lock symbol in a browser shows the website's security certificate details, such as the issuing authority and expiration date, which helps the user validate the site's authenticity and security.
Clearing cookies, enabling pop-up blockers, and deleting history do not provide certificate validation.
Which of the following describes a printer?
Answer : B
A printer is an output device because it takes digital data from a computer and produces a physical, printed result.
Other options:
Input devices send data to the computer,
Processing is done by the CPU,
Storage refers to saving data, like on a hard drive.
