MCQ IN COMPUTER SCIENCE & ENGINEERING

Detailed explanation-1: -A file server stands at the heart of most networks. It is a very fast computer with a large amount of RAM and storage space, along with a fast network interface card. The network operating system software resides on this computer, along with any software applications and data files that need to be shared.

Detailed explanation-2: -System Area Network is used for a local network. It offers high-speed connection in server-to-server and processor-to-processor applications. The computers connected on a SAN network operate as a single system at quite high speed.

Detailed explanation-3: -A storage area network (SAN), or network behind the servers, is a special purpose high-speed computer network that provides any-to-any access to storage. The main purpose of a SAN is to transfer data between different storage devices and between the computer network and storage devices.

Detailed explanation-4: -As described above, wide area networks are a form of telecommunication networks that can connect devices from multiple locations and across the globe. WANs are the largest and most expansive forms of computer networks available to date.