WGU D413 – Telecommunications & Wireless
Communications Objective Assessment | OA V1
and V2 | Questions and Answers | 2026 Update |
100% Correct.
10Base2 - ANS✔✔-Classification that specifies the use of RG-58 cable and a data rate of 10 Mbps. (2)
10Base5 - ANS✔✔-First IEEE 802.3 classification developed for Ethernet. (2)
10BaseT - ANS✔✔-Classification specifies the use of the diff erent categories of UTP cable. (2)
6to4 - ANS✔✔-Mechanism that provides a means of communicating across the IPv4 Internet while
preserving the orig-inal IPv6 assigned address of the network device. (10)
A+ Certification - ANS✔✔-Designed to test a person's knowledge related to PC support and repair;
pronounced A-plus. (20)
AAA proxy - ANS✔✔-Network device that acts as an intermediary to exchange secu-rity packets
between the AAA server and the AAA client. (15)
absorption - ANS✔✔-Occurs when intervening material absorbs some of the signal. (3)
access method - ANS✔✔-Method of gaining ac-cess to the network media. (6)
access port - ANS✔✔-Hub connection to which each network cable is connected. (1)
acoustical echo - ANS✔✔-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) - ANS✔✔-Extension to the original ACPI standard. (9)
Active Directory (AD) - ANS✔✔-Windows Server standard used to manage large and small network
systems. (7)
active hub - ANS✔✔-Enhanced passive hub; also called an intelligent hub or switch. (1)
active partition - ANS✔✔-Describes the partition that contains the operating system files the computer
should use to boot. (17)
adaptive cut-through - ANS✔✔-Frame-forwarding technique that operates as cut-through until an
unaccept-able number of corrupt frames are detected. (11)
Address Resolution Protocol (ARP) - ANS✔✔-Communication protocol that resolves an assigned IPv4
network address to a physical address (MAC address). (6)
Address Resolution Protocol (ARP) - ANS✔✔-Used to map the host MAC address to the logical host IP
address. (10)
ad hoc mode - ANS✔✔-Wireless network arrangement in which a wireless access point is not present. (4)
, WGU D413 – Telecommunications & Wireless
Communications Objective Assessment | OA V1
and V2 | Questions and Answers | 2026 Update |
100% Correct.
administrative server - ANS✔✔-Administers network security and activities. (1)
alien crosstalk (AXT) - ANS✔✔-Measurement of noise introduced outside the cable jacket, typically
caused by other net-work cables in close proximity. (2)
American National Standards Institute (ANSI) - ANS✔✔-Private, nonprofit organization that does not
develop standards, but rather prompts voluntary conformity and standardization. (1)
American Standard Code for Information Interchange (ASCII) - ANS✔✔-Early attempt to standard-ize
data codes. (5)
amplifier - ANS✔✔-Electronic device designed to raise a signal's amplitude. (2)
analog signal - ANS✔✔-Signal that has a contin-uous range of values, much like a wave. (2)
analog-to-digital converter (ADC) - ANS✔✔-Computer chip designed to change an analog signal to a
digital signal. (12)
anonymous FTP site - ANS✔✔-Allows anyone to access the site and download or upload files. (13)
ANT+ - ANS✔✔-Function that can be added to base ANT protocols that allows for interoperability;
pronounced ant plus. (4)
anycast address - ANS✔✔-IPv6 address that delivers packets to the nearest in-terface; mainly used for
supporting router functions. (10)
application gateway - ANS✔✔-Provides security for specific applications such as FTP and Telnet. (15)
application layer - ANS✔✔-Interfaces directly to and performs common application services for the
application process-es; layer seven of the OSI model. (1)
archive bit - ANS✔✔-Identifies if a file has changed since the last full or incremental backup. (16)
asymmetric-key encryption - ANS✔✔-Encryption method that uses two keys: a private key and a public
key; also known as public-key cryptography. (15)
asynchronous transfer mode (ATM) - ANS✔✔-Protocol designed especially for transmitting data, voice,
and video. (1)
asynchronous transmission - ANS✔✔-Data transmission method in which no reference signal is present.
(5)
attenuation - ANS✔✔-Loss of signal strength. (1)
, WGU D413 – Telecommunications & Wireless
Communications Objective Assessment | OA V1
and V2 | Questions and Answers | 2026 Update |
100% Correct.
auditing - ANS✔✔-Service that tracks the events, use, and access of network resources and writes these
actions to a log. (7)
authentication - ANS✔✔-Process used to identify a user and ensure the user is who he or she claims to
be; also known as local authentication. (15)
authentication, authorization, and accounting (AAA) - ANS✔✔-Security standard that consists of three
parts: authentication, authorization, and accounting; also known as triple A. (15)
Automatic Configuration and Power Interface (ACPI) - ANS✔✔-Standard for controlling the power
options for computer hardware devices. (9)
automatic medium-dependent interface crossover (Auto-MDIX) - ANS✔✔-Electronic chip technology
incorpo-rated into Gigabit Ethernet devices to automatically reassign pin func-tions and eliminate the
need for a crossover cable. (2)
Automatic Private IP Addressing (APIPA) - ANS✔✔-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)
available bit rate (ABR) - ANS✔✔-ATM data transfer classification most appro-priate for file transfer
because it uses the available bit rate associated with the networking medium. (12)
average utilization - ANS✔✔-Measurement of the average amount of utilization or traffic on a network in
a given monitoring period. (16)
AWG rating - ANS✔✔-Describes the size of a conductor's diameter. (2)
backbone - ANS✔✔-Connects the telecommuni-cation closets, equipment rooms, and main entrance
facility. (18)
backdoor - ANS✔✔-Software access port to a computer infected by a Trojan horse
backplane - ANS✔✔-Simple motherboard designed with minimal components. (9)
bandwidth - ANS✔✔-Measurement of the network media's ability to carry data. (2)
Bandwidth Allocation Protocol (BAP) - ANS✔✔-Allows the number of lines used by MLPPP to change
on demand. (14)
bandwidth shaper - ANS✔✔-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)
baseband - ANS✔✔-Method of transmitting data in the form of a digital signal, using the entire
bandwidth of a cable. (2)
, WGU D413 – Telecommunications & Wireless
Communications Objective Assessment | OA V1
and V2 | Questions and Answers | 2026 Update |
100% Correct.
baseline - ANS✔✔-Measurement of performance characteristics that can be used at a later date to
determine if the network or server is performing satisfactorily. (16)
basic disk - ANS✔✔-Term applied to the old system of hard disk drive configuration. (7)
Basic Rate ISDN (BRI-ISDN) - ANS✔✔-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)
basic service set (BSS) - ANS✔✔-Group of wireless devices connected as a network. (4)
biometrics - ANS✔✔-Science of using unique physical features of a person to con-firm that person's
identification for authentication purposes. (15)
bipolar digital signal - ANS✔✔-Digital signal that fluctuates between a positive five-volt level and a
negative five-volt level. (5)
bit rate - ANS✔✔-Number of bits used to repre-sent the amplitude of the analog signal. (12)
blackout - ANS✔✔-Total loss of electrical energy. (16)
blade server - ANS✔✔-Extremely thin server designed to allow a large number of servers to be mounted
in a small space. (9)
Bluetooth - ANS✔✔-Short-range, wireless system that is designed for limited distances. (4)
boot loader - ANS✔✔-Program that starts an op-erating system load process. (8)
boot partition - ANS✔✔-Contains the files needed to operate the computer. (17)
Border Gateway Protocol (BGP) - ANS✔✔-Internet routing protocol that supports the exchange of
routing information between autonomous networks. (11)
bridge - ANS✔✔-Can be used to divide the network into smaller segments, reducing the chance of
collisions. (1)
broadband - ANS✔✔-Method of transmitting data in the form of several analog signals at the same time.
(2)
Broadband ISDN (B-ISDN) - ANS✔✔-ISDN category designed to carry multiple frequencies. (14)
broadcast frame - ANS✔✔-Frame in which the destination address is filled with all ones; intended for
every computer on a network. (5)
broadcast storm - ANS✔✔-Occurs when the number of collisions reaches a point that the network is
flooded with a continuous number of collisions and rebroadcasts. (6)
Communications Objective Assessment | OA V1
and V2 | Questions and Answers | 2026 Update |
100% Correct.
10Base2 - ANS✔✔-Classification that specifies the use of RG-58 cable and a data rate of 10 Mbps. (2)
10Base5 - ANS✔✔-First IEEE 802.3 classification developed for Ethernet. (2)
10BaseT - ANS✔✔-Classification specifies the use of the diff erent categories of UTP cable. (2)
6to4 - ANS✔✔-Mechanism that provides a means of communicating across the IPv4 Internet while
preserving the orig-inal IPv6 assigned address of the network device. (10)
A+ Certification - ANS✔✔-Designed to test a person's knowledge related to PC support and repair;
pronounced A-plus. (20)
AAA proxy - ANS✔✔-Network device that acts as an intermediary to exchange secu-rity packets
between the AAA server and the AAA client. (15)
absorption - ANS✔✔-Occurs when intervening material absorbs some of the signal. (3)
access method - ANS✔✔-Method of gaining ac-cess to the network media. (6)
access port - ANS✔✔-Hub connection to which each network cable is connected. (1)
acoustical echo - ANS✔✔-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) - ANS✔✔-Extension to the original ACPI standard. (9)
Active Directory (AD) - ANS✔✔-Windows Server standard used to manage large and small network
systems. (7)
active hub - ANS✔✔-Enhanced passive hub; also called an intelligent hub or switch. (1)
active partition - ANS✔✔-Describes the partition that contains the operating system files the computer
should use to boot. (17)
adaptive cut-through - ANS✔✔-Frame-forwarding technique that operates as cut-through until an
unaccept-able number of corrupt frames are detected. (11)
Address Resolution Protocol (ARP) - ANS✔✔-Communication protocol that resolves an assigned IPv4
network address to a physical address (MAC address). (6)
Address Resolution Protocol (ARP) - ANS✔✔-Used to map the host MAC address to the logical host IP
address. (10)
ad hoc mode - ANS✔✔-Wireless network arrangement in which a wireless access point is not present. (4)
, WGU D413 – Telecommunications & Wireless
Communications Objective Assessment | OA V1
and V2 | Questions and Answers | 2026 Update |
100% Correct.
administrative server - ANS✔✔-Administers network security and activities. (1)
alien crosstalk (AXT) - ANS✔✔-Measurement of noise introduced outside the cable jacket, typically
caused by other net-work cables in close proximity. (2)
American National Standards Institute (ANSI) - ANS✔✔-Private, nonprofit organization that does not
develop standards, but rather prompts voluntary conformity and standardization. (1)
American Standard Code for Information Interchange (ASCII) - ANS✔✔-Early attempt to standard-ize
data codes. (5)
amplifier - ANS✔✔-Electronic device designed to raise a signal's amplitude. (2)
analog signal - ANS✔✔-Signal that has a contin-uous range of values, much like a wave. (2)
analog-to-digital converter (ADC) - ANS✔✔-Computer chip designed to change an analog signal to a
digital signal. (12)
anonymous FTP site - ANS✔✔-Allows anyone to access the site and download or upload files. (13)
ANT+ - ANS✔✔-Function that can be added to base ANT protocols that allows for interoperability;
pronounced ant plus. (4)
anycast address - ANS✔✔-IPv6 address that delivers packets to the nearest in-terface; mainly used for
supporting router functions. (10)
application gateway - ANS✔✔-Provides security for specific applications such as FTP and Telnet. (15)
application layer - ANS✔✔-Interfaces directly to and performs common application services for the
application process-es; layer seven of the OSI model. (1)
archive bit - ANS✔✔-Identifies if a file has changed since the last full or incremental backup. (16)
asymmetric-key encryption - ANS✔✔-Encryption method that uses two keys: a private key and a public
key; also known as public-key cryptography. (15)
asynchronous transfer mode (ATM) - ANS✔✔-Protocol designed especially for transmitting data, voice,
and video. (1)
asynchronous transmission - ANS✔✔-Data transmission method in which no reference signal is present.
(5)
attenuation - ANS✔✔-Loss of signal strength. (1)
, WGU D413 – Telecommunications & Wireless
Communications Objective Assessment | OA V1
and V2 | Questions and Answers | 2026 Update |
100% Correct.
auditing - ANS✔✔-Service that tracks the events, use, and access of network resources and writes these
actions to a log. (7)
authentication - ANS✔✔-Process used to identify a user and ensure the user is who he or she claims to
be; also known as local authentication. (15)
authentication, authorization, and accounting (AAA) - ANS✔✔-Security standard that consists of three
parts: authentication, authorization, and accounting; also known as triple A. (15)
Automatic Configuration and Power Interface (ACPI) - ANS✔✔-Standard for controlling the power
options for computer hardware devices. (9)
automatic medium-dependent interface crossover (Auto-MDIX) - ANS✔✔-Electronic chip technology
incorpo-rated into Gigabit Ethernet devices to automatically reassign pin func-tions and eliminate the
need for a crossover cable. (2)
Automatic Private IP Addressing (APIPA) - ANS✔✔-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)
available bit rate (ABR) - ANS✔✔-ATM data transfer classification most appro-priate for file transfer
because it uses the available bit rate associated with the networking medium. (12)
average utilization - ANS✔✔-Measurement of the average amount of utilization or traffic on a network in
a given monitoring period. (16)
AWG rating - ANS✔✔-Describes the size of a conductor's diameter. (2)
backbone - ANS✔✔-Connects the telecommuni-cation closets, equipment rooms, and main entrance
facility. (18)
backdoor - ANS✔✔-Software access port to a computer infected by a Trojan horse
backplane - ANS✔✔-Simple motherboard designed with minimal components. (9)
bandwidth - ANS✔✔-Measurement of the network media's ability to carry data. (2)
Bandwidth Allocation Protocol (BAP) - ANS✔✔-Allows the number of lines used by MLPPP to change
on demand. (14)
bandwidth shaper - ANS✔✔-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)
baseband - ANS✔✔-Method of transmitting data in the form of a digital signal, using the entire
bandwidth of a cable. (2)
, WGU D413 – Telecommunications & Wireless
Communications Objective Assessment | OA V1
and V2 | Questions and Answers | 2026 Update |
100% Correct.
baseline - ANS✔✔-Measurement of performance characteristics that can be used at a later date to
determine if the network or server is performing satisfactorily. (16)
basic disk - ANS✔✔-Term applied to the old system of hard disk drive configuration. (7)
Basic Rate ISDN (BRI-ISDN) - ANS✔✔-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)
basic service set (BSS) - ANS✔✔-Group of wireless devices connected as a network. (4)
biometrics - ANS✔✔-Science of using unique physical features of a person to con-firm that person's
identification for authentication purposes. (15)
bipolar digital signal - ANS✔✔-Digital signal that fluctuates between a positive five-volt level and a
negative five-volt level. (5)
bit rate - ANS✔✔-Number of bits used to repre-sent the amplitude of the analog signal. (12)
blackout - ANS✔✔-Total loss of electrical energy. (16)
blade server - ANS✔✔-Extremely thin server designed to allow a large number of servers to be mounted
in a small space. (9)
Bluetooth - ANS✔✔-Short-range, wireless system that is designed for limited distances. (4)
boot loader - ANS✔✔-Program that starts an op-erating system load process. (8)
boot partition - ANS✔✔-Contains the files needed to operate the computer. (17)
Border Gateway Protocol (BGP) - ANS✔✔-Internet routing protocol that supports the exchange of
routing information between autonomous networks. (11)
bridge - ANS✔✔-Can be used to divide the network into smaller segments, reducing the chance of
collisions. (1)
broadband - ANS✔✔-Method of transmitting data in the form of several analog signals at the same time.
(2)
Broadband ISDN (B-ISDN) - ANS✔✔-ISDN category designed to carry multiple frequencies. (14)
broadcast frame - ANS✔✔-Frame in which the destination address is filled with all ones; intended for
every computer on a network. (5)
broadcast storm - ANS✔✔-Occurs when the number of collisions reaches a point that the network is
flooded with a continuous number of collisions and rebroadcasts. (6)
