MCQ IN COMPUTER SCIENCE & ENGINEERING

Detailed explanation-1: -Answer: A. In a mesh topology, all devices are connected directly to every other device on the network. If one link fails, there is always another available. It is the most fault-tolerant network topology.

Detailed explanation-2: -Having nodes arranged in a mesh topology brings some benefits: messages can be received more quickly if the route to the intended recipient is short. messages should always get through as they have many possible routes on which to travel. multiple connections mean (in theory) that no node should be isolated.

Detailed explanation-3: -In star topology, the central site plays an important role; if it fails, all the connections will go down. Performance of the central hub dictates the performance of the connection. For a star topology, it may happen that two nodes might be closed to each other; however, they will have to communicate via central node.

Detailed explanation-4: -Following are the disadvantages of Ring topology: If a node fails, the whole network will fail. Slow data transmission speed(each message has to go through the ring path). Difficult to reconfigure(we have to break the ring).

Detailed explanation-5: -Mesh topology: In this, each device has a dedicated point to point link to every other device. Dedicated means that a link carries traffic only between two devices it connects. It is the most reliable topology.