MCQ IN COMPUTER SCIENCE & ENGINEERING

Detailed explanation-1: -The correct answer is Router. A router is a networking device that forwards data packets between computer networks. Routers perform the traffic directing functions on the Internet. Data sent through the internet, such as a web page or email, is in the form of data packets.

Detailed explanation-2: -Ethernet provides a basic facility to transmit a packet between two computers connected by the ethernet cable.

Detailed explanation-3: -A router is the most intelligent and complex of the three network connection devices listed in this article. Rather than just forwarding data packets to other devices in a single network, routers are designed to forward data packets between two or more networks, as well as direct traffic between them.

Detailed explanation-4: -When a packet arrives at a router, the router examines the IP address put there by the IP protocol layer on the originating computer. The router checks it’s routing table. If the network containing the IP address is found, the packet is sent to that network.

Detailed explanation-5: -A NIC converts data packets between two different data transmission technologies. A PC uses parallel data transmission technology to transmit data between its internal parts whereas the media that provides connectivity between different PCs uses serial data transmission technology.