Exam 8: Data and Network Communication Technology

The communication path that transports signals is called a(n) ____________________.

Long-distance telecommunication providers use FDM to multiplex single-mode optical fibers, an application commonly called ____.

____ have a predetermined pattern of signal transitions designed for easy clock synchronization.

​In the server arena, serial standards, such as Serial Attached SCSI (SAS), have replaced older parallel standards.

​Phase is a wave characteristic that's fundamentally the same as amplitude or frequency.

​To limit skew errors, high-speed parallel communication channels must be short, typically less than two meters.

​A ____ message contains instructions that control some aspect of the communication process.

Frequency modulation is also called ____.

​____________________ cable is the most common transmission medium for phone and local area network (LAN) connections.

​The most common wired transmission media for LANs is ____ cable.

​____ is the number of cycles occurring in one second and is measured in hertz (Hz).

A complete communication protocol is a complex combination of subsidiary protocols and the technologies to implement them.

​____ is the most expensive cable type

RF transmission is more complex than wired transmission because it incorporates more sophisticated error detection/correction and security methods.

​In ____ mode, messages flow in only one direction

____ is a specific time point in a wave's cycle.

​In a single electrical communication channel, a(n) ____ wire carries data and the return wire completes the electrical circuit.

​Packet switching, the most common type of TDM, divides messages from all users or applications into small pieces called ____________________.

​____ represents bit values as specific wave amplitudes.

​Circuit switching is inefficient for most data transmission settings because few users require high data transmission capacity continuously.