TELECOMM AND WIRELESS
COMMUNICATIONS - D413 WGU EXAM
WITH 600 COMPLETE QUESTIONS
AND CORRECT ANSWERS
QUESTIONA+ Certification - answer-Designed to test a person's knowledge related to PC support and
repair; pronounced A-plus. (20)
QUESTIONAAA proxy - answer-Network device that acts as an intermediary to exchange secu-rity packets
between the AAA server and the AAA client. (15)
QUESTIONabsorption - answer-Occurs when intervening material absorbs some of the signal. (3)
10Base2 - answer-Classification that specifies the use of RG-58 cable and a data rate of 10 Mbps. (2)
QUESTION10Base5 - answer-First IEEE 802.3 classification developed for Ethernet. (2)
QUESTION10BaseT - answer-Classification specifies the use of the diff erent categories of UTP cable. (2)
QUESTION6to4 - answer-Mechanism that provides a means of communicating across the IPv4 Internet
while preserving the orig-inal IPv6 assigned address of the network device. (10)
QUESTIONaccess method - answer-Method of gaining ac-cess to the network media. (6)
,QUESTIONaccess port - answer-Hub connection to which each network cable is connected. (1)
QUESTIONacoustical echo - answer-Condition that takes place when a microphone and a speaker are in
close proximity or the audio is improperly adjusted, causing feedback. (12)
QUESTIONanonymous FTP site - answer-Allows anyone to access the site and download or upload files.
(13)
QUESTIONANT+ - answer-Function that can be added to base ANT protocols that allows for
interoperability; pronounced ant plus. (4)
QUESTIONanycast address - answer-IPv6 address that delivers packets to the nearest in-terface; mainly
used for supporting router functions. (10)
QUESTIONapplication gateway - answer-Provides security for specific applications such as FTP and
Telnet. (15)
QUESTIONapplication layer - answer-Interfaces directly to and performs common application services for
the application process-es; layer seven of the OSI model. (1)
QUESTIONarchive bit - answer-Identifies if a file has changed since the last full or incremental backup. (16)
QUESTIONasymmetric-key encryption - answer-Encryption method that uses two keys: a private key and a
public key; also known as public-key cryptography. (15)
QUESTIONasynchronous transfer mode (ATM) - answer-Protocol designed especially for transmitting data,
voice, and video. (1)
,QUESTIONasynchronous transmission - answer-Data transmission method in which no reference signal is
present. (5)
QUESTIONattenuation - answer-Loss of signal strength. (1)
QUESTIONauditing - answer-Service that tracks the events, use, and access of network resources and
writes these actions to a log. (7)
QUESTIONauthentication - answer-Process used to identify a user and ensure the user is who he or she
claims to be; also known as local authentication. (15)
QUESTIONauthentication, authorization, and accounting (AAA) - answer-Security standard that consists of
three parts: authentication, authorization, and accounting; also known as triple A. (15)
QUESTIONAutomatic Configuration and Power Interface (ACPI) - answer-Standard for controlling the
power options for computer hardware devices. (9)
QUESTIONautomatic medium-dependent interface crossover (Auto-MDIX) - answer-Electronic chip
technology incorpo-rated into Gigabit Ethernet devices to automatically reassign pin func-tions and
eliminate the need for a crossover cable. (2)
QUESTIONAutomatic Private IP Addressing (APIPA) - answer-Feature that assigns an IP address from a
special set of IP ad-dresses that have been set aside by IANA when a DHCP server cannot be reached.
(10)
QUESTIONavailable bit rate (ABR) - answer-ATM data transfer classification most appro-priate for file
transfer because it uses the available bit rate associated with the networking medium. (12)
QUESTIONaverage utilization - answer-Measurement of the average amount of utilization or traffic on a
network in a given monitoring period. (16)
, QUESTIONAWG rating - answer-Describes the size of a conductor's diameter. (2)
QUESTIONbackbone - answer-Connects the telecommuni-cation closets, equipment rooms, and main
entrance facility. (18)
QUESTIONbackdoor - answer-Software access port to a computer infected by a Trojan horse
QUESTIONbackplane - answer-Simple motherboard designed with minimal components. (9)
QUESTIONbandwidth - answer-Measurement of the network media's ability to carry data. (2)
QUESTIONBandwidth Allocation Protocol (BAP) - answer-Allows the number of lines used by MLPPP to
change on demand. (14)
QUESTIONbandwidth shaper - answer-Used to prioritize network packets to ensure quality of service for
time-sensitive applica-tions such as VoIP; also known as a traffic shaper. (12)
QUESTIONbaseband - answer-Method of transmitting data in the form of a digital signal, using the entire
bandwidth of a cable. (2)
QUESTIONbaseline - answer-Measurement of performance characteristics that can be used at a later date
to determine if the network or server is performing satisfactorily. (16)
QUESTIONbasic disk - answer-Term applied to the old system of hard disk drive configuration. (7)
QUESTIONBasic Rate ISDN (BRI-ISDN) - answer-ISDN cat-egory that consists of three conduc-tors: two B
channels, referred to as bearer channels, and one D channel, referred to as the delta channel. (14)
QUESTIONbasic service set (BSS) - answer-Group of wireless devices connected as a network. (4)
COMMUNICATIONS - D413 WGU EXAM
WITH 600 COMPLETE QUESTIONS
AND CORRECT ANSWERS
QUESTIONA+ Certification - answer-Designed to test a person's knowledge related to PC support and
repair; pronounced A-plus. (20)
QUESTIONAAA proxy - answer-Network device that acts as an intermediary to exchange secu-rity packets
between the AAA server and the AAA client. (15)
QUESTIONabsorption - answer-Occurs when intervening material absorbs some of the signal. (3)
10Base2 - answer-Classification that specifies the use of RG-58 cable and a data rate of 10 Mbps. (2)
QUESTION10Base5 - answer-First IEEE 802.3 classification developed for Ethernet. (2)
QUESTION10BaseT - answer-Classification specifies the use of the diff erent categories of UTP cable. (2)
QUESTION6to4 - answer-Mechanism that provides a means of communicating across the IPv4 Internet
while preserving the orig-inal IPv6 assigned address of the network device. (10)
QUESTIONaccess method - answer-Method of gaining ac-cess to the network media. (6)
,QUESTIONaccess port - answer-Hub connection to which each network cable is connected. (1)
QUESTIONacoustical echo - answer-Condition that takes place when a microphone and a speaker are in
close proximity or the audio is improperly adjusted, causing feedback. (12)
QUESTIONanonymous FTP site - answer-Allows anyone to access the site and download or upload files.
(13)
QUESTIONANT+ - answer-Function that can be added to base ANT protocols that allows for
interoperability; pronounced ant plus. (4)
QUESTIONanycast address - answer-IPv6 address that delivers packets to the nearest in-terface; mainly
used for supporting router functions. (10)
QUESTIONapplication gateway - answer-Provides security for specific applications such as FTP and
Telnet. (15)
QUESTIONapplication layer - answer-Interfaces directly to and performs common application services for
the application process-es; layer seven of the OSI model. (1)
QUESTIONarchive bit - answer-Identifies if a file has changed since the last full or incremental backup. (16)
QUESTIONasymmetric-key encryption - answer-Encryption method that uses two keys: a private key and a
public key; also known as public-key cryptography. (15)
QUESTIONasynchronous transfer mode (ATM) - answer-Protocol designed especially for transmitting data,
voice, and video. (1)
,QUESTIONasynchronous transmission - answer-Data transmission method in which no reference signal is
present. (5)
QUESTIONattenuation - answer-Loss of signal strength. (1)
QUESTIONauditing - answer-Service that tracks the events, use, and access of network resources and
writes these actions to a log. (7)
QUESTIONauthentication - answer-Process used to identify a user and ensure the user is who he or she
claims to be; also known as local authentication. (15)
QUESTIONauthentication, authorization, and accounting (AAA) - answer-Security standard that consists of
three parts: authentication, authorization, and accounting; also known as triple A. (15)
QUESTIONAutomatic Configuration and Power Interface (ACPI) - answer-Standard for controlling the
power options for computer hardware devices. (9)
QUESTIONautomatic medium-dependent interface crossover (Auto-MDIX) - answer-Electronic chip
technology incorpo-rated into Gigabit Ethernet devices to automatically reassign pin func-tions and
eliminate the need for a crossover cable. (2)
QUESTIONAutomatic Private IP Addressing (APIPA) - answer-Feature that assigns an IP address from a
special set of IP ad-dresses that have been set aside by IANA when a DHCP server cannot be reached.
(10)
QUESTIONavailable bit rate (ABR) - answer-ATM data transfer classification most appro-priate for file
transfer because it uses the available bit rate associated with the networking medium. (12)
QUESTIONaverage utilization - answer-Measurement of the average amount of utilization or traffic on a
network in a given monitoring period. (16)
, QUESTIONAWG rating - answer-Describes the size of a conductor's diameter. (2)
QUESTIONbackbone - answer-Connects the telecommuni-cation closets, equipment rooms, and main
entrance facility. (18)
QUESTIONbackdoor - answer-Software access port to a computer infected by a Trojan horse
QUESTIONbackplane - answer-Simple motherboard designed with minimal components. (9)
QUESTIONbandwidth - answer-Measurement of the network media's ability to carry data. (2)
QUESTIONBandwidth Allocation Protocol (BAP) - answer-Allows the number of lines used by MLPPP to
change on demand. (14)
QUESTIONbandwidth shaper - answer-Used to prioritize network packets to ensure quality of service for
time-sensitive applica-tions such as VoIP; also known as a traffic shaper. (12)
QUESTIONbaseband - answer-Method of transmitting data in the form of a digital signal, using the entire
bandwidth of a cable. (2)
QUESTIONbaseline - answer-Measurement of performance characteristics that can be used at a later date
to determine if the network or server is performing satisfactorily. (16)
QUESTIONbasic disk - answer-Term applied to the old system of hard disk drive configuration. (7)
QUESTIONBasic Rate ISDN (BRI-ISDN) - answer-ISDN cat-egory that consists of three conduc-tors: two B
channels, referred to as bearer channels, and one D channel, referred to as the delta channel. (14)
QUESTIONbasic service set (BSS) - answer-Group of wireless devices connected as a network. (4)
