If you are preparing for a CS/IT Engineering interview, Must go through these questions series.Here you will find latest interview Questions and answers on CS/IT Engineering Frameworks and tools.
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A computer network consists of two or more machines that are connected in order to share resources, exchange files, or permit electronic communications and the workstations on a network may be linked through cables, telephone lines, radio waves, satellites, or IR light beams. Moreover, nodes are intelligent devices that initiate, route and terminate data communication and are commonly identified by network id and may include hosts such as PCs, phones, and servers, as well as networking devices such as routers and switches.
Caching is the process of storing data in a cache, a temporary storage area. To exemplify, the files you request by looking at a web page are stored on your hard disk in a cache subfile under the directory for the browser. The data in a cache is stored in fast access hardware and may also be employed in correlation with a software component. Moreover, a cache's objective is to improve data retrieval performance by reducing the requirement to access the underlying slower storage layer.