This OSI layer handles protocol conversion and data transmission.

When compressing files, a lossless compression algorithm is often used on image, audio, and video files

Indicate whether the statement is true or false

A solution, which eliminates the burden of each server having to confirm the identities of clients who request service, is to use an __________ that knows the passwords of all users and stores these in a centralized database and shares a unique secret key with each server.

Fill in the blank(s) with the appropriate word(s).