MCQ’s
Long Questions
Short Questions
Class 11th Computer Chapter 3 – “Data Communications” focuses on the process of transmitting data between devices and the essential concepts related to communication systems. Key topics typically covered in this chapter include:
- Definition of Data Communications: Understanding data communication as the exchange of data between devices over a communication medium.
- Components of Data Communications: Overview of the key elements involved in data communication, including the sender, receiver, transmission medium, and message.
- Types of Communication: Discussion of different types of communication methods, such as analog vs. digital communication, and simplex, half-duplex, and full-duplex modes.
- Transmission Media: Examination of various transmission media used for data communication, including guided media (copper cables, fiber optics) and unguided media (radio waves).
- Data Encoding: Understanding how data is represented for transmission, including techniques like ASCII, Unicode, and binary encoding.
- Protocols: Introduction to communication protocols that govern data transmission, such as TCP/IP and HTTP, and their importance in ensuring reliable communication.
- Error Detection and Correction: Overview of techniques used to identify and correct errors that may occur during data transmission, such as checksums and parity bits.
This chapter provides a fundamental understanding of how data is communicated between devices, which is essential for grasping more advanced topics in computer networks and information technology. If you need further details or specific topics, just let me know!