Which of the following is a B3 certified operating system?

Social media has been used to

a. increase voter turnout in elections. b. increase communication between elected officials and their constituents. c. replace television and radio advertising in political elections. d. all of the above.

When a collision is detected in Ethernet, it is resolved using

a. stop-and-wait ARQ b. go-back-N ARQ c. priority backoff d. random backoff