CompTIA ITF+ Practice Test 2025 – All-in-One Resource for Complete Exam Success!

The choice of a switch or router as the device used to connect multiple computers in a network is correct because both of these devices facilitate communication between computers within the same network or across different networks.

A switch operates at the data link layer of the OSI model and is responsible for forwarding data only to the device that needs it, which enhances network efficiency. It connects devices within a local area network (LAN) and handles data packets based on their MAC addresses.

On the other hand, a router connects different networks together and directs data packets between them, using IP addresses to determine the best path for data transmission. Routers perform a vital role in managing traffic between local networks and the internet, ensuring that data reaches its destination correctly.

While printers, scanners, and monitoring devices serve important functions, they do not inherently connect multiple computers within a network. Printers and scanners are typically output and input devices, respectively, used for managing print jobs and digitizing documents. Monitoring devices are used for observing network performance and security but do not facilitate the actual interconnection of computers.