COMPUTER FUNDAMENTALS

Detailed explanation-1: -The packet switching process is reliable in that the destination can identify any missing packets. However, circuit switched networks deliver packets in order along the same route and are therefore less likely to experience missing packets in the first place.

Detailed explanation-2: -Each router examines and sends each IP packet individually-this is called packet switching. If the network changes, due to congestion or faults, routers can use an alternative interfaces to reach a destination. So packets may travel over different routes to reach the same destination.

Detailed explanation-3: -The correct answer is option (2) Circuit switching has less variation in packets than packet switching. Circuit switching send packet in order, while packet switching send out of order, so reordering needs in packet switching.

Detailed explanation-4: -Each packet does not follow the same route. It does not store and forward transmission. It does store and forward transmission.

Detailed explanation-5: -In packet switching networks, routing is the higher-level decision making that directs network packets from their source toward their destination through intermediate network nodes by specific packet forwarding mechanisms. Packet forwarding is the transit of network packets from one network interface to another.