What term describes a block of data that is transmitted as a single unit?

What term describes a block of data that is transmitted as a single unit?

• A. Frame
• B. Packet
• C. Bit
• D. Nibble

Answer: (A)

Data is sent in defined units that fit the layer handling the transmission. On a single link, the unit of data placed onto the wire is called a frame. A frame bundles the payload with a header (and often a trailer) that carries addressing, control information, and error-detection data. This framing defines the boundaries of the block being transmitted, lets the receiving node know where it starts and ends, and enables verification of integrity as the frame moves from one device to the next. A bit is the smallest unit of information, not a block. A nibble is four bits, also not a block. A packet is the network-layer unit that travels across multiple links and routers, and it is typically carried inside a frame for transmission on a particular link. So the term that describes a block of data transmitted as a single unit on a link is a frame.

Data is sent in defined units that fit the layer handling the transmission. On a single link, the unit of data placed onto the wire is called a frame. A frame bundles the payload with a header (and often a trailer) that carries addressing, control information, and error-detection data. This framing defines the boundaries of the block being transmitted, lets the receiving node know where it starts and ends, and enables verification of integrity as the frame moves from one device to the next.

A bit is the smallest unit of information, not a block. A nibble is four bits, also not a block. A packet is the network-layer unit that travels across multiple links and routers, and it is typically carried inside a frame for transmission on a particular link. So the term that describes a block of data transmitted as a single unit on a link is a frame.