WorksheetsFUNDAMENTALS QUIZZES
Total questions: 120
Worksheet time: 3600secs
Name
Class
Date
1.
Is a kind of software that monitors a computer and its user while he or she accesses the Internet or e-mail
a)
Viruses
b)
Spyware
c)
Spam
d)
Malware
2.
Is a specialized part of the Internet where companies, organizations, the government, or even individuals can post information for others to access and use.
a)
File Transfer
b)
E-mail
c)
Facebook
d)
World Wide Web
3.
_______ is a company set up especially to tap into the network known as the Internet. It. can be an independent company or a local telephone company or a cable TV company.
a)
Internet Service Provider
b)
Voice over Internet Protocol
c)
Cloud Computing
d)
Broadband Connections
4.
Refers to doing business over the Internet, usually buying and selling goods and services by way of the Web.
a)
Video over Internet Protocol
b)
E-commerce
c)
Cloud Computing
d)
Voice over Internet Protocol
5.
Refers to the ability to transfer files of data or software from one computer to another.
a)
World Wide Web
b)
File Transfer
c)
Facebook
d)
E-mail
6.
It was developed to transmit digitized telephone calls in T1 format over fiberoptic cable at high speeds.
a)
ITU
b)
SONET
c)
ITC
d)
ANSI
7.
Is a packet-based technology and was optimized to carry Ethernet as well as SONET.
a)
OTN
b)
FEC
c)
SDH
d)
ITC
8.
What two protocols are used to establish a VPN?
a)
IPsec and SLL
b)
IPsec and LSS
c)
IPsec and SSL
d)
IPsec and LSL
9.
How many different classes of IP addresses are there?
a)
7 classes, A through E.
b)
5 classes, A through E.
c)
3 classes, A through E.
d)
6 classes, A through E.
10.
What is the total number of bytes or octets in a SONET frame?
a)
811
b)
813
c)
801
d)
810
11.
What are the speeds of transmission of an FC system?
a)
1, 2, 4, and 10 Gbps
b)
1, 5, 4, and 12 Gbps
c)
1, 2, 4, and 11Gbps
d)
1, 3, 4, and 10 Gbps
12.
What network topologies are common with SONET?
a)
Ring topology
b)
Star topology
c)
Hybrid topology
d)
Bus topology
13.
Is the exchange of notes, letters, memos, and other personal communication by
way of e-mail software and service companies.
a)
File transfer
b)
E-mail
c)
World Wide Web
d)
Facebook
14.
Name the equipment used to get data into and out of a SONET system.
a)
Router
b)
Rooter
c)
Rauter
d)
Ruoter
15.
In a SAN, what is the name of the interface and protocol used in connecting
the disk drive systems to the servers?
a)
Fibre channel (FC)
b)
None of the above
c)
Fiber optical cable
d)
Fiber Channel (FC)
16.
What is the shortest time for transmitting 50 ATM packets at 2.5 Gbps?
a)
8.40 µS
b)
8.50 µS
c)
8.49 µS
d)
8.48 µS
17.
Is the technique of replacing standard telephone service with a digital voice
version with calls taking place over the Internet.
a)
E-commerce
b)
Cloud Computing
c)
Voice over Internet Protocol
d)
Video over Internet Protocol
18.
What is the name given to a virus that replicates itself?
a)
Browser Hijacker
b)
Overwrite virus
c)
Worm
d)
Boot sector virus
19.
Is a type of security threat where it clogs up the e-mail system with huge
quantities of unwanted data and uses transmission time and bandwidth that
could be used in a more productive way.
a)
Malware
b)
Spyware
c)
Spam
d)
Viruses
20.
Is a type of security threat wherein small program designed to implement some
nefarious action in a computer.
a)
Viruses
b)
Spam
c)
Spyware
d)
Malware
21.
A diode that are made with N-type silicon on which has been deposited a thin metal layer is called ___________.
a)
Point-Contact Diodes
b)
Hot Carrier Diodes
c)
Varactor Diodes
d)
None of the Above
22.
A ____ antenna is a radiator made by cutting a one-half wavelength slot in a conducting sheet of metal or into the side or top of a waveguide.
a)
Helical Antenna
b)
None of the Above
c)
Bicone Antenna
d)
Slot Antenna
23.
___________are not diodes in the usual sense because they do not have junctions and it is also a thin piece of N-type gallium arsenide (GaAs) or indium phosphide (InP) semiconductor that forms a special resistor when voltage is applied to it.
a)
None of the Above
b)
Gunn Diodes
c)
TRAPATT Diodes
d)
IMPATT Diodes
24.
A ________ antenna is one whose copper pattern elements are formed on some type of resonant dielectric material such as ceramic or some derivative
a)
Inverted-F
b)
None of the Above
c)
Dielectric Antenna
d)
Loop Antenna
25.
A microwave tube that is a combination of a simple diode vacuum tube with built-in cavity resonators and an extremely powerful permanent magnet.
a)
Klystron
b)
None of the above
c)
Magnetron
d)
Two- cavity Klystron
26.
A _______ antenna is a single closed loop that is usually rectangular but could be round as well.
a)
Loop Antenna
b)
None of the Above
c)
Inverted-F
d)
Dielectric Antenna
27.
The total length of the microstrip ring is _______.
a)
1.0 λ
b)
1.75 λ
c)
1.5 λ
d)
1.80 λ
28.
A __________ diode is basically a voltage variable capacitor.
a)
None of the Above
b)
Point-Contact Diodes
c)
Hot Carrier Diodes
d)
Varactor Diodes
29.
Are variations of circulators, but they have one input and one output
a)
EMI Disks
b)
Isolator
c)
Ferrite Disk
d)
Circulator
30.
Is a three-port microwave device used for coupling energy in only one direction around a closed loop.
a)
Circulator
b)
Ferrite Disk
c)
Isolator
d)
EMI Disks
31.
Radars operate in what microwave bands?
a)
K and X bands
b)
L and V bands
c)
None of the Above
d)
P and Q bands
32.
A rectangular waveguide has a width of 1.4 in and a height of 0.8 in. What is the cutoff frequency of the waveguide?
a)
4.21 GHz
b)
4.20 GHz
c)
4.22 GHz
d)
None of the Above
33.
What is the typical beam width range of horn?
a)
60 to 110°
b)
110 to 160°
c)
10 to 60°
d)
None of the Above
34.
Is a microwave vacuum tube using cavity resonators to produce velocity modulation of an electron beam that produces amplification
a)
Two- cavity Klystron
b)
Magnetron
c)
Klystron
d)
Megatron
35.
In a band designation, C band has a frequency range of?
a)
2 to 4 GHz
b)
5 to 6 GHz
c)
1 to 2 GHz
d)
4 to 8 GHz
36.
A 20-dB directional coupler is installed in a waveguide carrying a 5-W 6-GHz signal. What is the output of the coupler?
a)
None of the Above
b)
50 mW
c)
70 mW
d)
60 mW
37.
A diode that comprises a piece of semiconductor material and a fine wire that makes contact with the semiconductor material and is the oldest microwave semiconductor device is called ___________.
a)
None of the Above
b)
Varactor Diodes
c)
Point-Contact Diodes
d)
Hot Carrier Diodes
38.
One of the most versatile microwave RF power amplifiers is the _______ , which can generate hundreds and even thousands of watts of microwave power
a)
Miscellaneous Microwave Tubes
b)
None of the Above
c)
Traveling-Wave Tubes
d)
Microwave Tubes
39.
In a band designation, L band has a frequency range of?
a)
3 to 4 GHz
b)
1 to 2 GHz
c)
4 to 8 GHz
d)
2 to 4 GHz
40.
IMPATT diodes are available with power ratings up to about ____ W to frequencies as high as about ___ GHz.
a)
None of the Above
b)
50 W, 100 GHz
c)
25 W, 300 GHz
d)
75 W, 250 GHz
41.
The Cordless telephone transmitter output power is limited to ___ mW.
a)
300
b)
600
c)
400
d)
500
42.
Previously called an answering machine, this feature is implemented on most electronic phones. The microcontroller automatically answers the call after a preprogrammed number of rings and saves the voice message.
a)
Voice Mail
b)
Caller Id
c)
Tone dialing
d)
Pulse dialing
43.
is basically a small permanent-magnet speaker. A thin metallic diaphragm is physically attached to a coil that rests inside a permanent magnet.
a)
Transmitter
b)
Handset
c)
Dialing circuit
d)
Receiver
44.
The local loop resistance depends considerably on the length of the twisted pair between the telephone and the central office The local loop length can vary from a few thousand feet up to about ______ ft
a)
18000
b)
17000
c)
16000
d)
20000
45.
Is either a bell or an electronic oscillator connected to a speaker. It is continuously connected to the twisted pair of the local loop back to the central office
a)
Dialing Circuits
b)
Ringer
c)
Handset
d)
Switch hook
46.
Through ____ Most telephones are connected by way of a thin multiwire cable to a wall jack.
a)
Subscriber Interface
b)
Line interface
c)
Wiring interface
d)
Block interface
47.
variable resistors called _____ used in the circuit to provide automatic adjustment of line level.
a)
Resistor
b)
Capacitor
c)
Inductor
d)
Varistor
48.
is a double-pole mechanical switch that is usually controlled by a mechanism actuated by the telephone handset.
a)
Switch Hook
b)
Ringer
c)
Dialing Circuits
d)
Handset
49.
is another name for A/D conversion and D/A conversion. Today, many telephone transmissions are made by way of serial digital data methods.
a)
Coding
b)
Overvoltage protection
c)
Supervision
d)
Test signals
50.
IP phones in companies or large organizations are especially designed for VoIP service.
a)
Home IP phones
b)
Business IP phones
c)
Enterprise IP phones
d)
None of these
51.
Is the largest and most complex electronic communication system in the world. It uses just about every type of electronic communication technique available.
a)
Optical Communication
b)
Internet
c)
Telephone System
d)
Microwave Communication
52.
is the microphone into which you speak during a telephone call
a)
Receiver
b)
Ringer
c)
Handset
d)
Transmitter
53.
refers to a group of functions within the subscriber line interface that monitor local loop conditions and provide various services
a)
Ringing
b)
Protection
c)
Coding
d)
Supervision
54.
The tip wire is green and is usually connected to ground; the ring wire is ___.
a)
Red
b)
White
c)
Black
d)
Yellow
55.
The resistance of the telephone itself also varies over a relatively wide range. It can be as low as 100 ohms and as high as ____ ohms
a)
400
b)
200
c)
150
d)
300
56.
is the delay between the time the signal is transmitted and the time it is received.
a)
Inactivity
b)
Recess
c)
Latency
d)
Delay duration
57.
Is a special transformer used to convert signals from the four wires from the transmitter and receiver to a signal suitable for a single two-line pair to the local loop.
a)
Switch hook
b)
Dialing Circuits
c)
Hybrid Circuit
d)
Handset
58.
Provide a way for entering the telephone number to be called. In older telephones, a pulse dialing system was used.
a)
Handset
b)
Dialing Circuits
c)
Ringer
d)
Switch Hook
59.
s the facility to which your telephone is directly connected by a twisted-pair cable. Also known as an end office (EO),
a)
Base office
b)
Local office
c)
Central office
d)
Main office
60.
When a specific telephone is receiving a call, the telephone local office must provide a ___signal.
a)
Alarm
b)
Sound
c)
Ringing
d)
None of these
61.
What element of a satellite system transmits an uplink signal to the satellite?
a)
Downlink. Uplink.
b)
Azimuth and elevation.
c)
The earth or ground station.
d)
Geosynchronous or geostationary.
62.
The signals to be communicated by the earth station to the satellite are known as ______ signals.
a)
Demultiplexer.
b)
Solar battery panels.
c)
Onboard batteries
d)
Baseband.
63.
What do you call the signal path from a satellite to a ground station?
a)
Azimuth and elevation.
b)
Geosynchronous or geostationary.
c)
Downlink. Uplink.
d)
Azimuth and Downlink
64.
What is the most common operational frequency range of most communication satellites?
a)
C band
b)
X band
c)
Microwaves
d)
Azimuth
65.
What is used to power the satellite during an eclipse?
a)
None of the above
b)
Solar battery panels.
c)
Demultiplexer.
d)
Onboard batteries
66.
What is the frequency range of the Ku band? Ka band?
a)
Ku: 10.95 to 14.5 GHz. Ka: 17.7-3.
b)
Ku: 11.95 to 14.5 GHz. Ka: 17.7-3.
c)
Ku: 10.95 to 14.5 GHz. Ka: 16.7-3.
d)
Ku: 11.95 to 14.5 GHz. Ka: 16.7-
67.
What is the geometric shape of a noncircular orbit?
a)
Ellipse.
b)
Posigrade orbit.
c)
Period.
d)
Geocenter.
68.
What is the bandwidth of a typical satellite transponder?
a)
500 MHz.
b)
600 MHz.
c)
800 MHz.
d)
700 MHz.
69.
What do you call a satellite that rotates around the equator 22,300 mi from the earth?
a)
Geosynchronous.
b)
Period.
c)
Ellipse.
d)
Geocenter
70.
Military satellites often operate in which frequency band?
a)
X band
b)
Z band
c)
Y band
d)
C band
71.
What are two common transponder intermediate frequencies?
a)
71 and 140 MHz; 700 or 770 MHz for the first IF in a dual- conversion receiver.
b)
70 and 141MHz; 700 or 770 MHz for the first IF in a dual- conversion receiver.
c)
70 and 140 MHz; 700 or 770 MHz for the first IF in a dual- conversion receiver.
d)
70 and 140 MHz; 700 or 771 MHz for the first IF in a dual- conversion receiver.
72.
What is the main power supply in a satellite?
a)
Demultiplexer.
b)
Solar battery panels.
c)
Onboard batteries
d)
None of the abov
73.
State the name for the time of one orbit.
a)
Geocenter.
b)
Period.
c)
Ellipse.
d)
Posigrade orbit
74.
Is a satellite that rotates in the same direction as the earth’s rotation said to be in a posigrade orbit or a retrograde orbit?
a)
Posigrade orbit.
b)
Ellipse.
c)
Period.
d)
Geocenter.
75.
One of the most popular satellite frequency ranges is 4 to 6 GHz. What letter name is given to that range?
a)
Z band
b)
C band
c)
X band
d)
Y band
76.
What is the name of the center of gravity of the earth?
a)
Posigrade orbit.
b)
Period.
c)
Ellipse.
d)
Geocenter.
77.
What is the name of the point on the earth directly below a satellite?
a)
Ellipse.
b)
Subsatellite point
c)
Geosynchronous.
d)
Geocenter.
78.
Name the two angles used to point a ground station antenna toward a satellite.
a)
Azimuth and elevation.
b)
Geosynchronous or geostationary.
c)
Downlink. Uplink.
d)
Azimuth and Downlink
79.
What is the name of the circuit that provides channelization in a transponder?
a)
Demultiplexer.
b)
Solar battery panels.
c)
Onboard batteries
d)
None of the above
80.
A typical C-band transponder can carry how many channels? What is the bandwidth of each?
a)
13 channels, 36 MHz each.
b)
12 channels, 37 MHz each.
c)
13 channels, 37 MHz each.
d)
12 channels, 36 MHz each.
81.
What is the wavelength range of infrared light?
a)
0.7 μm (near IR) to 1400 μm (far IR).
b)
0.5 μm (near IR) to 1500 μm (far IR).
c)
0.6 μm (near IR) to 1200 μm (far IR).
d)
0.8 μm (near IR) to 1000 μm (far IR).
82.
What term is used to describe a single light frequency?
a)
Bichromatic
b)
Polychromatic
c)
Monochromatic
d)
Single-Chrome
83.
How is the amount of light loss in a fiber-optic cable expressed and measured?
a)
Joule per kilometer (J/km)
b)
Newton per mile (N/mi)
c)
Megahertz per kilometer (MHz/km)
d)
Decibels per kilometer (dB/km)
84.
Which segment of the optical spectrum has the highest frequencies?
a)
Ultraviolet
b)
Infrared
c)
Visible
d)
Gamma
85.
What covers and protects the core in a fiber-optic cable?
a)
Ceramics
b)
Cladding
c)
Wood
d)
Rubber
86.
Which material has the better optical characteristics and lower loss?
a)
Wood
b)
All of the above
c)
Plastic
d)
Glass
87.
What is the term used to describe the bending of light rays due to speed changes in moving from one medium to another?
a)
Dispersion
b)
Reflection
c)
Refraction
d)
Diffusion
88.
What device can be used to bounce or change the direction of a light wave?
a)
Polyvinyl
b)
Wood
c)
Stone
d)
Mirror
89.
What are the two most common transmission media in an optical communication system?Free space and fiber-optic cable
a)
Free space and fiber-optic cable
b)
Free space and graded index cable
c)
Single-mode step index cable and Graded Index Cable
d)
Single-mode and Multimode step index cable
90.
Of what value are ultraviolet rays in communications?
a)
0.5
b)
No Value
c)
0.2
d)
1
91.
What is the name of the number that tells how fast light travels in a medium compared to air?
a)
Index of reflection
b)
None of the above
c)
Speed of light
d)
Index of refraction
92.
What term is used to refer to light loss in a cable?
a)
Dispersion
b)
Attenuation
c)
Reflection
d)
Refraction
93.
What do you call the condition of all emitted light waves being in phase?
a)
Inherent
b)
Chromatic
c)
Correlated
d)
Coherent
94.
Which segment of the optical spectrum has the lowest frequencies?
a)
Visible
b)
Gamma
c)
Ultraviolet
d)
Infrared
95.
The index of refraction is highest in the _______
a)
All of the above
b)
Core
c)
Cladding
d)
None of the abov
96.
What is the typical core diameter range of a single-mode step index cable?
a)
2–15 μm
b)
3–18 μm
c)
1–10 μm
d)
4–20 μm
97.
What units are used to express the wavelength of light?
a)
Micrometer
b)
All of the above
c)
Micron
d)
Nanometer
98.
What is the name given to the regenerative units used to compensate for signal attenuation over long distances?
a)
Inverter
b)
Oscillator
c)
Transformer
d)
Repeater
99.
Pulse stretching by modal dispersion causes the information capacity of a cable to
a)
Disappear
b)
Maintain its capacity
c)
Decrease
d)
Increase
100.
Light waves travel in a ______.
a)
Curve
b)
Straight line
c)
Random path
d)
Straight line and curve
101.
State the main application for ZigBee.
a)
Wireless mesh sensor networks
b)
Wireless bus sensor networks
c)
Wireless star sensor networks
d)
None of the above
102.
What is the name of the unit that forms the base unit of a home WLAN?
a)
Router or gateway
b)
Switch
c)
Wi-Fi
d)
None of the above
103.
State the major use for IR wireless
a)
Calculator
b)
None of the above
c)
Cellphone
d)
TV remote control
104.
What is the approximate maximum operating range of a 13.56-MHz tag?
a)
Several Volts
b)
Several Kilograms
c)
Several Feet
d)
Several types
105.
What is the popular name for the IEEE 802.16d/e standard?
a)
WiMAX
b)
WIXX
c)
IMAXX
d)
MAXX
106.
State the primary operating frequency range of UWB
a)
2.2 to 13.1 GHz
b)
3.0 to 12.3 GHz
c)
3.1 to 10.6 GHz
d)
2.4 to 14.2 GHz
107.
Name the two primary network topologies used with ZigBee.
a)
Bus and Delta
b)
Bus
c)
Star and Mesh
d)
None of the above
108.
What wireless technology has reduced the popularity and adoption of 802.16?
a)
TEL
b)
LET
c)
LTE
d)
ELT
109.
Name the two most popular PAN standards.
a)
Router, Modem.
b)
LAN, WLAN
c)
None of the above
d)
Bluetooth, Zigbee
110.
Name the general operating frequency range of 802.16.
a)
6 to 8 GHz
b)
1 to 4 GHz
c)
3 to 5 GHz
d)
2 to 6 GHz
111.
Name the three Wi-Fi frequency bands
a)
2.4, 5.8 and 60 GHz.
b)
4.2, 8.5 and 50 GHz
c)
2.0, 4.0 and 55 GHz
d)
3.0, 5.0 and 65 GHz
112.
What is the commercial nickname for this WLAN standard?
a)
Option Cable
b)
Switch
c)
Router
d)
Wi-Fi
113.
What is the maximum data rate of this newest form of UWB?
a)
490 Mbps
b)
480 Mbps
c)
450 Mbps
d)
350 Mbps
114.
What is the IEEE standard on which ZigBee is based?
a)
801.13.2
b)
800.14.3
c)
802.15.4
d)
800.12.1
115.
What physical requirement is necessary for IR systems to work?
a)
Direct sight of line path
b)
All of the above
c)
Direct line of sight path
d)
Indirect sight of line path
116.
What is the approximate maximum communications range of class 1 and class 3 Bluetooth power categories?
a)
Class 1: 1000 meters, class 3: 1 meter
b)
Class 1: 10 meters, class 3: 1010 meters
c)
Class 1: 100 meters, class 3: 10 meters.
d)
Class 1: 100 kilometers, class 3: 10 kilometers
117.
RFID is the electronic equivalent of what popular coding and ID scheme?
a)
Color coding
b)
Bar coding
c)
Zip coding
d)
Number coding
118.
What is the primary benefit of a wireless LAN?
a)
Economic
b)
Mobility, Convenience
c)
Stability and Comfort
d)
None of the above
119.
Name the IEEE standard for WLANs.
a)
None of the Above
b)
802.11
c)
801. 01
d)
800.11
120.
What is the frequency range of white space radio?
a)
470 to 710 MHz
b)
None of the above
c)
460 to 700 MHz
d)
400 to 600 MHz
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