Test Bank for
WGU D413 OBJECTIVE ASSESSMENT 2
| TELECOMM AND WIRELESS
COMMUNICATIONS OA
** Expert-Verified Explanation
** Questions with Verified Answer
** New Edition | 2026-2027 Updated
** 100% Guaranteed Pass
** 100% Correct Answers | Graded A+
,10Base2 Classification that specifies the use of RG-58 cable and a data rate of 10 Mbps.
(2)
10Base5 First IEEE 802.3 classification developed for Ethernet. (2)
10BaseT Classification specifies the use of the diff erent categories of UTP cable. (2)
6to4 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 Designed to test a person's knowledge related to PC support and repair;
pronounced A-plus. (20)
AAA proxy Network device that acts as an intermediary to exchange secu-rity packets
between the AAA server and the AAA client. (15)
absorption Occurs when intervening material absorbs some of the signal. (3)
access method Method of gaining ac-cess to the network media. (6)
access port Hub connection to which each network cable is connected. (1)
acoustical echo 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) Extension to the original ACPI standard. (9)
Active Directory (AD) Windows Server standard used to manage large and small network systems. (7)
active hub Enhanced passive hub; also called an intelligent hub or switch. (1)
active partition Describes the partition that contains the operating system files the computer
should use to boot. (17)
adaptive cut-through Frame-forwarding technique that operates as cut-through until an unaccept-able
number of corrupt frames are detected. (11)
Address Resolution Protocol (ARP) Communication protocol that resolves an assigned IPv4 network address to a
physical address (MAC address). (6)
,Address Resolution Protocol (ARP) Used to map the host MAC address to the logical host IP address. (10)
ad hoc mode Wireless network arrangement in which a wireless access point is not present.
(4)
administrative server Administers network security and activities. (1)
alien crosstalk (AXT) Measurement of noise introduced outside the cable jacket, typically caused by
other net-work cables in close proximity. (2)
American National Standards Institute (ANSI) Private, nonprofit organization that does not develop standards, but rather
prompts voluntary conformity and standardization. (1)
American Standard Code for Information Interchange Early attempt to standard-ize data codes. (5)
(ASCII)
amplifier Electronic device designed to raise a signal's amplitude. (2)
analog signal Signal that has a contin-uous range of values, much like a wave. (2)
analog-to-digital converter (ADC) Computer chip designed to change an analog signal to a digital signal. (12)
anonymous FTP site Allows anyone to access the site and download or upload files. (13)
ANT+ Function that can be added to base ANT protocols that allows for interoperability;
pronounced ant plus. (4)
anycast address IPv6 address that delivers packets to the nearest in-terface; mainly used for
supporting router functions. (10)
application gateway Provides security for specific applications such as FTP and Telnet. (15)
application layer Interfaces directly to and performs common application services for the
application process-es; layer seven of the OSI model. (1)
archive bit Identifies if a file has changed since the last full or incremental backup. (16)
asymmetric-key encryption Encryption method that uses two keys: a private key and a public key; also
known as public-key cryptography. (15)
, asynchronous transfer mode (ATM) Protocol designed especially for transmitting data, voice, and video. (1)
asynchronous transmission Data transmission method in which no reference signal is present. (5)
attenuation Loss of signal strength. (1)
auditing Service that tracks the events, use, and access of network resources and writes
these actions to a log. (7)
authentication 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) Security standard that consists of three parts: authentication, authorization, and
accounting; also known as triple A. (15)
Automatic Configuration and Power Interface (ACPI) Standard for controlling the power options for computer hardware devices. (9)
automatic medium-dependent interface crossover (Auto- Electronic chip technology incorpo-rated into Gigabit Ethernet devices to
MDIX) automatically reassign pin func-tions and eliminate the need for a crossover
cable. (2)
Automatic Private IP Addressing (APIPA) 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) 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 Measurement of the average amount of utilization or traffic on a network in a
given monitoring period. (16)
AWG rating Describes the size of a conductor's diameter. (2)
backbone Connects the telecommuni-cation closets, equipment rooms, and main entrance
facility. (18)
backdoor Software access port to a computer infected by a Trojan horse
backplane Simple motherboard designed with minimal components. (9)
bandwidth Measurement of the network media's ability to carry data. (2)
WGU D413 OBJECTIVE ASSESSMENT 2
| TELECOMM AND WIRELESS
COMMUNICATIONS OA
** Expert-Verified Explanation
** Questions with Verified Answer
** New Edition | 2026-2027 Updated
** 100% Guaranteed Pass
** 100% Correct Answers | Graded A+
,10Base2 Classification that specifies the use of RG-58 cable and a data rate of 10 Mbps.
(2)
10Base5 First IEEE 802.3 classification developed for Ethernet. (2)
10BaseT Classification specifies the use of the diff erent categories of UTP cable. (2)
6to4 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 Designed to test a person's knowledge related to PC support and repair;
pronounced A-plus. (20)
AAA proxy Network device that acts as an intermediary to exchange secu-rity packets
between the AAA server and the AAA client. (15)
absorption Occurs when intervening material absorbs some of the signal. (3)
access method Method of gaining ac-cess to the network media. (6)
access port Hub connection to which each network cable is connected. (1)
acoustical echo 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) Extension to the original ACPI standard. (9)
Active Directory (AD) Windows Server standard used to manage large and small network systems. (7)
active hub Enhanced passive hub; also called an intelligent hub or switch. (1)
active partition Describes the partition that contains the operating system files the computer
should use to boot. (17)
adaptive cut-through Frame-forwarding technique that operates as cut-through until an unaccept-able
number of corrupt frames are detected. (11)
Address Resolution Protocol (ARP) Communication protocol that resolves an assigned IPv4 network address to a
physical address (MAC address). (6)
,Address Resolution Protocol (ARP) Used to map the host MAC address to the logical host IP address. (10)
ad hoc mode Wireless network arrangement in which a wireless access point is not present.
(4)
administrative server Administers network security and activities. (1)
alien crosstalk (AXT) Measurement of noise introduced outside the cable jacket, typically caused by
other net-work cables in close proximity. (2)
American National Standards Institute (ANSI) Private, nonprofit organization that does not develop standards, but rather
prompts voluntary conformity and standardization. (1)
American Standard Code for Information Interchange Early attempt to standard-ize data codes. (5)
(ASCII)
amplifier Electronic device designed to raise a signal's amplitude. (2)
analog signal Signal that has a contin-uous range of values, much like a wave. (2)
analog-to-digital converter (ADC) Computer chip designed to change an analog signal to a digital signal. (12)
anonymous FTP site Allows anyone to access the site and download or upload files. (13)
ANT+ Function that can be added to base ANT protocols that allows for interoperability;
pronounced ant plus. (4)
anycast address IPv6 address that delivers packets to the nearest in-terface; mainly used for
supporting router functions. (10)
application gateway Provides security for specific applications such as FTP and Telnet. (15)
application layer Interfaces directly to and performs common application services for the
application process-es; layer seven of the OSI model. (1)
archive bit Identifies if a file has changed since the last full or incremental backup. (16)
asymmetric-key encryption Encryption method that uses two keys: a private key and a public key; also
known as public-key cryptography. (15)
, asynchronous transfer mode (ATM) Protocol designed especially for transmitting data, voice, and video. (1)
asynchronous transmission Data transmission method in which no reference signal is present. (5)
attenuation Loss of signal strength. (1)
auditing Service that tracks the events, use, and access of network resources and writes
these actions to a log. (7)
authentication 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) Security standard that consists of three parts: authentication, authorization, and
accounting; also known as triple A. (15)
Automatic Configuration and Power Interface (ACPI) Standard for controlling the power options for computer hardware devices. (9)
automatic medium-dependent interface crossover (Auto- Electronic chip technology incorpo-rated into Gigabit Ethernet devices to
MDIX) automatically reassign pin func-tions and eliminate the need for a crossover
cable. (2)
Automatic Private IP Addressing (APIPA) 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) 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 Measurement of the average amount of utilization or traffic on a network in a
given monitoring period. (16)
AWG rating Describes the size of a conductor's diameter. (2)
backbone Connects the telecommuni-cation closets, equipment rooms, and main entrance
facility. (18)
backdoor Software access port to a computer infected by a Trojan horse
backplane Simple motherboard designed with minimal components. (9)
bandwidth Measurement of the network media's ability to carry data. (2)
