Question

X.25 packet assembler / disassembler (PAD)

Options:
A. A device that encodes and decodes data for transmission over X.25 networks
B. A computer program used for video editing
C. A hardware firewall
D. A network topology

Answer 1

The X.25 PAD is a device that encodes and decodes data for transmission over X.25 networks, ensuring proper data packet assembly and disassembly.

Step-by-step explanation:

The question relates to the X.25 Packet Assembler/Disassembler (PAD) which is a device used in networking. A PAD is responsible for preparing data for transmission over an X.25 network. The correct answer to the student's question is 'A. A device that encodes and decodes data for transmission over X.25 networks'. It basically assembles data into packets that can be sent over the network and disassembles incoming packets to extract the data for the recipient device.