FREE CompTIA ITF Infrastructure Questions and Answers
Which of the following devices is responsible for connecting multiple computers within a local area network (LAN)?
A switch is used to connect multiple computers or devices within a local area network (LAN), allowing them to communicate with each other by forwarding data based on MAC addresses. A router connects different networks, and a modem provides access to the internet.
What does the term "cloud computing" refer to?
Cloud computing involves accessing and storing data or applications over the internet rather than on local storage. This allows users to access data from anywhere and reduces the need for physical storage devices.
What is the primary purpose of a modem in a home network?
A modem (modulator-demodulator) converts digital data from a computer into analog signals that can be transmitted over telephone lines and vice versa. It enables internet access by connecting your local network to your internet service provider.
Which of the following is a key function of an operating system?
An operating system (OS), like Windows, macOS, or Linux, provides the essential interface for users to interact with the computer, manage hardware resources, and run software applications. It is not directly responsible for internet speed or automatic execution of programs.
What is the primary purpose of a network router?
A router connects different networks, such as a home network to the internet, and directs data packets to the appropriate destinations. It ensures that data from the LAN reaches the correct server or other network locations, unlike a switch which only manages communication within the same network.