Data Communication

Answer

Data Communication refers to the exchange of data between two or more networked or connected devices. It involves transmitting data (text, image, audio, video, multimedia) from one device to another o

Answer

1. Sender: Device that sends data (computer, mobile, etc.) 2. Receiver: Device that receives data (printer, laptop, etc.) 3. Message: The data/information being transmitted 4. Communication Media: Pat

Answer

Bandwidth is the range of frequencies available for transmission of data through a channel. It is the difference between maximum and minimum frequency in composite signals. Higher bandwidth = higher d

Answer

Required data rate = (10 × 1600 × 8) ÷ 20 = 128,000 ÷ 20 = 6,400 bps = 6.25 Kbps Formula: Data rate = (Total bits) ÷ (Time in seconds)

Answer

Data Transfer Rate is measured in bits per second (bps) Conversions: 1 Kbps = 2¹⁰ bps = 1024 bps 1 Mbps = 2²⁰ bps = 1024 Kbps 1 Gbps = 2³⁰ bps = 1024 Mbps 1 Tbps = 2⁴⁰ bps = 1024 Gbps Note: MBps = Meg

Answer

Simplex: One-way communication (keyboard to computer, IoT control) Half-duplex: Two-way but not simultaneous (walkie-talkie, one talks while other listens) Full-duplex: Two-way simultaneous communicat

Answer

Circuit Switching establishes a dedicated path between sender and receiver before communication starts. This path is a connected sequence of links between network nodes. All packets follow the same es

Answer

Packet Switching breaks messages into smaller packets that are transmitted independently. Each packet has a header (destination address) and message part. Different packets may take different routes.