Header of a Frame in Computer Networks

The header of a frame is an essential part of any communication in a computer network. It contains crucial information that helps in the proper transmission and reception of data. The header of a frame generally contains the following:

Synchronization Bytes
- The synchronization bytes are the first few bytes of the header and are used to synchronize the receiver's clock with the sender's clock.

Addresses
- The header contains the source and destination addresses of the frame. These addresses help in identifying the devices between which the communication is taking place.

Frame Identifier
- The frame identifier is a unique identifier assigned to each frame. This identifier helps in tracking the frames and ensuring that they are received in the correct order.

All of the Mentioned
- The correct answer to the given question is "D," i.e., all of the mentioned. This is because the header of a frame generally contains all of the above-mentioned components that are essential for proper communication in a computer network.

Conclusion

In conclusion, the header of a frame is an important component of any communication in a computer network. It contains vital information that helps in the proper transmission and reception of data. The header generally contains synchronization bytes, addresses, frame identifier, and other necessary components. Understanding the structure of the header is crucial for anyone working in the field of computer networks.