COMPUTER NETWORKING

TRANSPORT LAYER

INTRODUCTION

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Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]

Which Flag bit in TCP header must be set when a client initiates a 3-Way Handshake?

A	RST
B	ACK
C	FIN
D	SYN

Explanation:

Detailed explanation-1: -A client must initiate a conversation by using the TCP handshake to request a communication session with the server. SYN flag is used to start and maintain a connection while the ACK flag confirms that the other side has received the SYN flag. The FIN flag is used to terminate a connection.

Detailed explanation-2: -Bits of SYN and ACK are involved in the TCP three-way handshake. During the first handshake, the client sends an SYN packet to the TCP server. During the second handshake, the server responds with an SYN ACK packet. During the third handshake, the client responds to the server with an ACK packet.

Detailed explanation-3: -1st Flag-Urgent Pointer An Urgent Pointer could be used during a stream of data transfer where a host is sending data to an application running on a remote machine. If a problem appears, the host machine needs to abort the data transfer and stop the data processing on the other end.

There is 1 question to complete.