If you use either Telnet or FTP, which is the highest layer you are using to transmit data?

Application Presentation Session Transport

Which connection provides a dedicated link between two devices.

point-to-point multipoint primary secondary

Which part of an asynchronous data stream is used for bit synchronization between transmitter and receiver?

Start Bit Stop Bit Parity Bit First data Bit

Error detection at the data link level is achieved by?

Cyclic Redundancy codes Hamming codes Bit stuffing Equalization

Which part of the computer is used for calculating and comparing?

ALU Control unit Disk unit Modem