CIS 101 Ch.6 Exam Questions and Answers Solved Correctly Rated A+
REVERSE 911 SERVICE - Answers A communications solution that delivers emergency notifications to
users in a selected geographical area.
TELECOMMUNICATIONS MEDIUM - Answers Any material substance that carries an electronic signal to
support communications between a sending and a receiving device.
NETWORKING PROTOCOL - Answers A set of rules, algorithms, messages, and other mechanisms that
enable software and hardware in networked devices to communicate effectively.
SIMPLEX CHANNEL - Answers A communications channel that can transmit data in only one direction
and is seldom used for business telecommunications.
HALF-DUPLEX CHANNEL - Answers A communications channel that can transmit data in either direction
but not simultaneously.
FULL-DUPLEX CHANNEL - Answers A communications channel that permits data transmission in both
directions at the same time; a full-duplex channel is like two simplex channels.
CHANNEL BANDWIDTH - Answers The rate at which data is exchanged, usually measured in bps.
BROADBAND COMMUNICATIONS - Answers A relative term but it generally means a
telecommunications system that can transmit data very quickly.
CIRCUIT-SWITCHING NETWORK - Answers A network that sets up a circuit between the sender and
receiver before any communications can occur; this circuit is maintained for the duration of the
communication and cannot be used to support any other communications until the circuit is released
and a new connection is set up.
PACKET-SWITCHING NETWORK - Answers A network in which no fixed path is created between the
communicating devices, and the data is broken into packets, with each packet transmitted individually
and capable of taking various paths from sender to recipient.
NEAR FIELD COMMUNICATION (NFC) - Answers A very short-range wireless connectivity technology
designed for consumer electronics, cell phones, and credit cards.
BLUETOOTH - Answers A wireless communications specification that describes how cell phones,
computers, faxes, personal digital assistants, printers, and other electronic devices can be
interconnected over distances of 10 to 30 feet at a rate of about 2 Mbps.
ULTRA WIDEBAND (UWB) - Answers A form of short-range communications that employs extremely
short electromagnetic pulses lasting just 50 to 1,000 picoseconds that are transmitted across a broad
range of radio frequencies of several gigahertz.
INFRARED TRANSMISSION - Answers A form of communications that sends signals at a frequency of 300
GHz and above—higher than those of microwaves but lower than those of visible light.
REVERSE 911 SERVICE - Answers A communications solution that delivers emergency notifications to
users in a selected geographical area.
TELECOMMUNICATIONS MEDIUM - Answers Any material substance that carries an electronic signal to
support communications between a sending and a receiving device.
NETWORKING PROTOCOL - Answers A set of rules, algorithms, messages, and other mechanisms that
enable software and hardware in networked devices to communicate effectively.
SIMPLEX CHANNEL - Answers A communications channel that can transmit data in only one direction
and is seldom used for business telecommunications.
HALF-DUPLEX CHANNEL - Answers A communications channel that can transmit data in either direction
but not simultaneously.
FULL-DUPLEX CHANNEL - Answers A communications channel that permits data transmission in both
directions at the same time; a full-duplex channel is like two simplex channels.
CHANNEL BANDWIDTH - Answers The rate at which data is exchanged, usually measured in bps.
BROADBAND COMMUNICATIONS - Answers A relative term but it generally means a
telecommunications system that can transmit data very quickly.
CIRCUIT-SWITCHING NETWORK - Answers A network that sets up a circuit between the sender and
receiver before any communications can occur; this circuit is maintained for the duration of the
communication and cannot be used to support any other communications until the circuit is released
and a new connection is set up.
PACKET-SWITCHING NETWORK - Answers A network in which no fixed path is created between the
communicating devices, and the data is broken into packets, with each packet transmitted individually
and capable of taking various paths from sender to recipient.
NEAR FIELD COMMUNICATION (NFC) - Answers A very short-range wireless connectivity technology
designed for consumer electronics, cell phones, and credit cards.
BLUETOOTH - Answers A wireless communications specification that describes how cell phones,
computers, faxes, personal digital assistants, printers, and other electronic devices can be
interconnected over distances of 10 to 30 feet at a rate of about 2 Mbps.
ULTRA WIDEBAND (UWB) - Answers A form of short-range communications that employs extremely
short electromagnetic pulses lasting just 50 to 1,000 picoseconds that are transmitted across a broad
range of radio frequencies of several gigahertz.
INFRARED TRANSMISSION - Answers A form of communications that sends signals at a frequency of 300
GHz and above—higher than those of microwaves but lower than those of visible light.
