What is the default port number for the File Transfer Protocol (FTP)?

Which multiplexing technique is used to transmit digital signals?

Which of the following tasks is not performed by the data link layer?

A ____________ allows LAN users to share computer programs and data.

Which layer in the network model is responsible for process-to-process delivery?

The commands, from client to server, and replies, from server to client, are sent across the control connection in _____ bit ASCII format.

Mostly ____________ is used in wireless LAN.

Transmission Control Protocol (TCP) ___________

Every host in an IPv4 network has a 1-second resolution real-time clock with battery backup. Each host needs to generate up to 1000 unique identifiers per second. Assume that each host has a globally unique IPv4 address. Design a 50-bit globally unique ID for this purpose. After what period (in seconds) will the identifiers generated by a host wrap around?