The Correct Answer and Explanation is:
The correct answers are B and E.
A Network Interface Card, or NIC, is the hardware component that allows a computer to connect to a network. Upgrading this component is done to enhance or add networking capabilities. The two correct reasons among the choices provided are to increase bandwidth and to gain wireless connectivity.
B. to increase bandwidth is a primary reason for a NIC upgrade. Bandwidth refers to the maximum data transfer rate of a network connection. Older computers or budget motherboards may come with NICs limited to speeds like 100 Megabits per second (Mbps) or 1 Gigabit per second (Gbps). As internet service providers offer faster plans and local network demands grow, a user might upgrade to a multi-gigabit NIC (such as 2.5 Gbps, 5 Gbps, or 10 Gbps) to eliminate a bottleneck. This allows for significantly faster file transfers within a local network, smoother streaming of high resolution video like 4K or 8K, and the ability to fully utilize a high speed internet connection.
E. to have wireless connectivity is another common reason for a NIC upgrade. Many desktop computers are built with only a wired Ethernet port. If a user wants to connect to a Wi-Fi network for convenience, to reduce cable clutter, or because a wired connection is not available, they would need to install a wireless NIC. This upgrade adds a new feature to the computer, allowing it to connect to wireless networks. This can be done by installing an internal PCIe wireless card or by using a simple external USB Wi-Fi adapter.
The other options are incorrect. Importing videos (A) is a software task related to file management and storage. Implementing a RAID (C) is a storage technology involving hard drives and a RAID controller, not a NIC. A higher sample rate (D) is a feature of an audio card or sound interface for processing audio, which is unrelated to network hardware.
