COMPUTER FUNDAMENTALS

INTRODUCTION TO COMPUTERS

COMPUTER NETWORKS AND THE INTERNET

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
What happens when the packet arrive at their destination?
A
The computer stores them all in a file as individual pieces
B
They get put back together in the correct order
C
Either A or B
D
None of the above
Explanation: 

Detailed explanation-1: -When the individual packets arrive at their destination they will be reassembled back together in the correct order. Once all of the packets have safely arrived a message will be sent to the original computer as confirmation.

Detailed explanation-2: -If too many packets are received out of order, TCP will cause a retransmission of packets similar to what happens with dropped packets. As such, the impact of out of order packets on goodput is similar to the impact of packet loss.

Detailed explanation-3: -TCP guarantees delivery of data and also guarantees that packets will be delivered in the same order in which they were sent. TCP makes up for IP’s deficiencies by providing reliable, stream-oriented connections that hide most of IP’s shortcomings.

Detailed explanation-4: -When a packet reaches a router, it will look at the destination address to determine where to send the packet. If the router’s forwarding tables know where the packet should go, the router will send the packet out along the appropriate route.

There is 1 question to complete.