Chapter 5

Question 1

___________ communicated by covering and uncovering a bonfire with a blanket to produce smoke signals or by beating drums.

Answer 1

Native Americans

Question 2

Used to convey messages from about 700 B.C.E

Answer 2

Carrier pigeons

Question 3

It is where the first long-distance communication systems were based on (e.g. drums and horns, smoke signals and beacon fires)

Answer 3

Signals of sound and light

Question 4

_________ alerted the British of the arrival of the Spanish Armada in 1588 C.E.

Answer 4

Signals fires

Question 5

The Chinese used ______ as signals to warn of an imminent attack on the Great Wall.

Answer 5

rockets

Question 6

The __________ sent signals at night by raising and lowering a lantern, which coincidentally was the same way Paul Revere was signaled with news of the arrival of the British.

Answer 6

British Navy

Question 7

Used in traditional long distance communication until almost 1800

Answer 7

Horse -mounted dispatch riders

Question 8

He developed an optical telegraph (semaphore) system of stations built on rooftops or towers that were visible from a great distance in 1793.

Answer 8

Frenchman Claude Chappe

Question 9

Developed another type of optical telegraph system with ten collapsible iron shutter, which when placed in various positions formed combinations of numbers that were translated into letters, words, or phrase.

Answer 9

Swede A.N. Edelcrantz

Question 10

Transmitted the first practical electrical signal in 1830, by sending electricity through a long set of wires to produce electromagnetism that was used to ring a bell.

Answer 10

Joseph Henry

Question 11

Patented the first functional electrical communication system in 1831: the electric telegraph with its system of electrical impulses identified as dots and dashes that eventually became known as Morse Code.

Answer 11

Samuel Morse

Question 12

The first message sent by electric telegraph.

Answer 12

“What hath God wrought”

Question 13

Invented an electrical speech machine that transmitted voice over wires and became known as the telephone.

Answer 13

Alexander Graham Bell

Question 14

When did Alexander Graham Bell invented the telephone.

Answer 14

March 10, 1876

Question 15

Italian inventor who demonstrated the first radio transmission in 1895 that was received out of a line of sight on the grounds of his family estate in Italy.

Answer 15

Gugliemo Marconi

Question 16

Italian physicist who invented a pantelegraph in 1865 for transmitting pictures, the first commercial fax system.

Answer 16

Giovanni Caselli

Question 17

When was the first transmission of pictures over telephone wires was publicly demonstrated.

Answer 17

May 19, 1924

Question 18

Is the transmission, emission, or reception of signs, signals, writing, images, sounds, or information of any nature by wire, radio, optical or other electromagnetic systems.

Answer 18

Telecommunication

Question 19

Uses electricity, light (visible and infrared), or radio waves to transmit signals that carry voice and data transmissions.

Answer 19

Telecommunication System

Question 20

Is a telecommunications device that functions as a transmitter and receiver.

Answer 20

Transceiver

Question 21

Is the range between the highest and lowest frequencies of transmission, measured in hertz (Hz) cycles per second. It is a measure of the information capacity.

Answer 21

Bandwidth

Question 22

The conversion of useful sound or data into electrical impulses.

Answer 22

Analog transmission

Question 23

Involves a transmission of a signal that varies in voltage to represent one of two separate states. Offers a rapid method of voice and nonvoice transmission.

Answer 23

Digital transmission

Question 24

Is a collection of communication equipment and devices that are interconnected so they can communicate in order to share data, hardware, and software or perform an electronic function.

Answer 24

Telecommunications Network

Question 25

Describes the configuration of a network, including its nodes, connecting cables and equipment. It describes the manner in which the cable is run to individual workstations on the network.

Answer 25

Topology

Question 26

It connects each workstation (node) to a single cable trunk. All signals are broadcast to all workstations.

Answer 26

Bus Topology

Question 27

All workstations (nodes) are connected to a central unit called hub. This configuration allows cables to have a direct link between entrance facilities/equipment room equipment, telecommunications closet devices, and workstations equipment.

Answer 27

Star Topology

Question 28

Cables that extend from the hub to the terminal without splicing or other connections.

Answer 28

Home runs

Question 29

Connects workstation equipment and devices in a point-to-point manner in an unbroken circular configuration.

Answer 29

Ring Topology

Question 30

Is the most medium through which voice and data usually move from one network device to another. Serves as the pipeline of a telecommunication system.

Answer 30

Cable

Question 31

Devices that connect cable to the network device. May come with the equipment purchased or it may be necessary to purchase them individually.

Answer 31

Connectors

Question 32

Is the most common medium through which voice and data usually has been the principal telecommunications transmission medium.

Answer 32

Copper Wiring

Question 33

It is enclosed in a shield. Suitable for environments with electrical interference; however, the extra shielding can make the cables quite bulky. Commonly used in Token Ring networks and UTP in Ethernet networks.

Answer 33

Shielded Twisted Pair (STP) Wiring

Question 34

Consists of multiple pairs of twisted insulated copper conductors bound in a single sheath.

Answer 34

Unshielded Twisted Pair (UTP) Wiring