TELECOMM AND WIRELESS
COMMUNICATIONS -D413 WGU EXAM
2025 ORGANIZED QUESTIONS,STEP BY
STEP EXPLANATIONS AND REVIEW
GUIDE AND 100% CORRECT EXPERT
VERIFIED ANSWERS GRADED A+
(BRAND NEW!!!!!!!!!)
AAA proxy - THE CORRECT ANSWER-Network device that acts as an
intermediary to exchange secu-rity packets between the AAA
server and the AAA client. (15)
absorption - THE CORRECT ANSWER-Occurs when intervening
material absorbs some of the signal. (3)
access method - THE CORRECT ANSWER-Method of gaining ac-cess to
the network media. (6)
access port - THE CORRECT ANSWER-Hub connection to which each
network cable is connected. (1)
acoustical echo - THE CORRECT ANSWER-Condition that takes place
when a microphone and a speaker are in close proximity or the
audio is improperly adjusted, causing feedback. (12)
,ACPI Component Architecture (ACPICA) - THE CORRECT ANSWER-
Extension to the original ACPI standard. (9)
Active Directory (AD) - THE CORRECT ANSWER-Windows Server
standard used to manage large and small network systems. (7)
active hub - THE CORRECT ANSWER-Enhanced passive hub; also
called an intelligent hub or switch. (1)
active partition - THE CORRECT ANSWER-Describes the partition that
contains the operating system files the computer should use to
boot. (17)
adaptive cut-through - THE CORRECT ANSWER-Frame-forwarding
technique that operates as cut-through until an unaccept-able
number of corrupt frames are detected. (11)
Address Resolution Protocol (ARP) - THE CORRECT ANSWER-
Communication protocol that resolves an assigned IPv4
network address to a physical address (MAC address). (6)
Address Resolution Protocol (ARP) - THE CORRECT ANSWER-Used to
map the host MAC address to the logical host IP address. (10)
ad hoc mode - THE CORRECT ANSWER-Wireless network arrangement
in which a wireless access point is not present. (4)
administrative server - THE CORRECT ANSWER-Administers network
security and activities. (1)
,alien crosstalk (AXT) - THE CORRECT ANSWER-Measurement of noise
introduced outside the cable jacket, typically caused by other
net-work cables in close proximity. (2)
American National Standards Institute (ANSI) - THE CORRECT
ANSWER-Private, nonprofit organization that does not develop
standards, but rather prompts voluntary conformity and
standardization. (1)
American Standard Code for Information Interchange (ASCII) -
THE CORRECT ANSWER-Early attempt to standard-ize data codes. (5)
amplifier - THE CORRECT ANSWER-Electronic device designed to raise
a signal's amplitude. (2)
analog signal - THE CORRECT ANSWER-Signal that has a contin-uous
range of values, much like a wave. (2)
analog-to-digital converter (ADC) - THE CORRECT ANSWER-Computer
chip designed to change an analog signal to a digital signal. (12)
anonymous FTP site - THE CORRECT ANSWER-Allows anyone to
access the site and download or upload files. (13)
ANT+ - THE CORRECT ANSWER-Function that can be added to base
ANT protocols that allows for interoperability; pronounced ant
plus. (4)
, anycast address - THE CORRECT ANSWER-IPv6 address that delivers
packets to the nearest in-terface; mainly used for supporting
router functions. (10)
application gateway - THE CORRECT ANSWER-Provides security for
specific applications such as FTP and Telnet. (15)
application layer - THE CORRECT ANSWER-Interfaces directly to and
performs common application services for the application
process-es; layer seven of the OSI model. (1)
archive bit - THE CORRECT ANSWER-Identifies if a file has changed
since the last full or incremental backup. (16)
asymmetric-key encryption - THE CORRECT ANSWER-Encryption
method that uses two keys: a private key and a public key; also
known as public-key cryptography. (15)
asynchronous transfer mode (ATM) - THE CORRECT ANSWER-
Protocol designed especially for transmitting data, voice, and
video. (1)
asynchronous transmission - THE CORRECT ANSWER-Data
transmission method in which no reference signal is present.
(5)
attenuation - THE CORRECT ANSWER-Loss of signal strength. (1)
COMMUNICATIONS -D413 WGU EXAM
2025 ORGANIZED QUESTIONS,STEP BY
STEP EXPLANATIONS AND REVIEW
GUIDE AND 100% CORRECT EXPERT
VERIFIED ANSWERS GRADED A+
(BRAND NEW!!!!!!!!!)
AAA proxy - THE CORRECT ANSWER-Network device that acts as an
intermediary to exchange secu-rity packets between the AAA
server and the AAA client. (15)
absorption - THE CORRECT ANSWER-Occurs when intervening
material absorbs some of the signal. (3)
access method - THE CORRECT ANSWER-Method of gaining ac-cess to
the network media. (6)
access port - THE CORRECT ANSWER-Hub connection to which each
network cable is connected. (1)
acoustical echo - THE CORRECT ANSWER-Condition that takes place
when a microphone and a speaker are in close proximity or the
audio is improperly adjusted, causing feedback. (12)
,ACPI Component Architecture (ACPICA) - THE CORRECT ANSWER-
Extension to the original ACPI standard. (9)
Active Directory (AD) - THE CORRECT ANSWER-Windows Server
standard used to manage large and small network systems. (7)
active hub - THE CORRECT ANSWER-Enhanced passive hub; also
called an intelligent hub or switch. (1)
active partition - THE CORRECT ANSWER-Describes the partition that
contains the operating system files the computer should use to
boot. (17)
adaptive cut-through - THE CORRECT ANSWER-Frame-forwarding
technique that operates as cut-through until an unaccept-able
number of corrupt frames are detected. (11)
Address Resolution Protocol (ARP) - THE CORRECT ANSWER-
Communication protocol that resolves an assigned IPv4
network address to a physical address (MAC address). (6)
Address Resolution Protocol (ARP) - THE CORRECT ANSWER-Used to
map the host MAC address to the logical host IP address. (10)
ad hoc mode - THE CORRECT ANSWER-Wireless network arrangement
in which a wireless access point is not present. (4)
administrative server - THE CORRECT ANSWER-Administers network
security and activities. (1)
,alien crosstalk (AXT) - THE CORRECT ANSWER-Measurement of noise
introduced outside the cable jacket, typically caused by other
net-work cables in close proximity. (2)
American National Standards Institute (ANSI) - THE CORRECT
ANSWER-Private, nonprofit organization that does not develop
standards, but rather prompts voluntary conformity and
standardization. (1)
American Standard Code for Information Interchange (ASCII) -
THE CORRECT ANSWER-Early attempt to standard-ize data codes. (5)
amplifier - THE CORRECT ANSWER-Electronic device designed to raise
a signal's amplitude. (2)
analog signal - THE CORRECT ANSWER-Signal that has a contin-uous
range of values, much like a wave. (2)
analog-to-digital converter (ADC) - THE CORRECT ANSWER-Computer
chip designed to change an analog signal to a digital signal. (12)
anonymous FTP site - THE CORRECT ANSWER-Allows anyone to
access the site and download or upload files. (13)
ANT+ - THE CORRECT ANSWER-Function that can be added to base
ANT protocols that allows for interoperability; pronounced ant
plus. (4)
, anycast address - THE CORRECT ANSWER-IPv6 address that delivers
packets to the nearest in-terface; mainly used for supporting
router functions. (10)
application gateway - THE CORRECT ANSWER-Provides security for
specific applications such as FTP and Telnet. (15)
application layer - THE CORRECT ANSWER-Interfaces directly to and
performs common application services for the application
process-es; layer seven of the OSI model. (1)
archive bit - THE CORRECT ANSWER-Identifies if a file has changed
since the last full or incremental backup. (16)
asymmetric-key encryption - THE CORRECT ANSWER-Encryption
method that uses two keys: a private key and a public key; also
known as public-key cryptography. (15)
asynchronous transfer mode (ATM) - THE CORRECT ANSWER-
Protocol designed especially for transmitting data, voice, and
video. (1)
asynchronous transmission - THE CORRECT ANSWER-Data
transmission method in which no reference signal is present.
(5)
attenuation - THE CORRECT ANSWER-Loss of signal strength. (1)
