TELECOMM AND WIRELESS
COMMUNICATIONS - D413 WGU
QUESTIONS AND ANSWERS (DETAILED AND
VERIFIED ANSWERS) | NEW REALESE
UPDATE 2025/2026 | ALREADY GRADED A+ |
100% GURANTEED PASS
10Base2 - ANSWER: Classification that specifies the use of RG-58 cable and a data
rate of 10 Mbps. (2)
10Base5 - ANSWER: First IEEE 802.3 classification developed for Ethernet. (2)
10BaseT - ANSWER: Classification specifies the use of the diff event categories of
UTP cable. (2)
6to4 - ANSWER: Mechanism that provides a means of communicating across the
IPv4 Internet while preserving the original IPv6 assigned address of the network
device. (10)
,A+ Certification - ANSWER: Designed to test a person's knowledge related to PC
support and repair; pronounced A-plus. (20)
AAA proxy - ANSWER: Network device that acts as an intermediary to exchange
security packets between the AAA server and the AAA client. (15)
absorption - ANSWER: Occurs when intervening material absorbs some of the
signal. (3)
access method - ANSWER: Method of gaining ac-chess to the network media. (6)
access port - ANSWER: Hub connection to which each network cable is connected.
(1)
acoustical 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)
ACPI Component Architecture (ACPICA) - ANSWER: Extension to the original
ACPI standard. (9)
,Active Directory (AD) - ANSWER: Windows Server standard used to manage large
and small network systems. (7)
active hub - ANSWER: Enhanced passive hub; also called an intelligent hub or
switch. (1)
active partition - ANSWER: Describes the partition that contains the operating
system files the computer should use to boot. (17)
ad hoc mode - ANSWER: Wireless network arrangement in which a wireless access
point is not present. (4)
adaptive cut-through - ANSWER: Frame-forwarding technique that operates as cut-
through until an unaccepted-able number of corrupt frames are detected. (11)
Address Resolution Protocol (ARP) - ANSWER: Communication protocol that
resolves an assigned IPv4 network address to a physical address (MAC address). (6)
Address Resolution Protocol (ARP) - ANSWER: Used to map the host MAC address
to the logical host IP address. (10)
administrative server - ANSWER: Administers network security and activities. (1)
, alien crosstalk (AXT) - 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) - ANSWER: Private, nonprofit
organization that does not develop standards, but rather prompts voluntary
conformity and standardization. (1)
American Standard Code for Information Interchange (ASCII) - ANSWER: Early
attempt to standard-size data codes. (5)
amplifier - ANSWER: Electronic device designed to raise a signal's amplitude. (2)
analog signal - ANSWER: Signal that has a continuous range of values, much like a
wave. (2)
analog-to-digital converter (ADC) - ANSWER: Computer chip designed to change
an analog signal to a digital signal. (12)
anonymous FTP site - ANSWER: Allows anyone to access the site and download or
upload files. (13)
COMMUNICATIONS - D413 WGU
QUESTIONS AND ANSWERS (DETAILED AND
VERIFIED ANSWERS) | NEW REALESE
UPDATE 2025/2026 | ALREADY GRADED A+ |
100% GURANTEED PASS
10Base2 - ANSWER: Classification that specifies the use of RG-58 cable and a data
rate of 10 Mbps. (2)
10Base5 - ANSWER: First IEEE 802.3 classification developed for Ethernet. (2)
10BaseT - ANSWER: Classification specifies the use of the diff event categories of
UTP cable. (2)
6to4 - ANSWER: Mechanism that provides a means of communicating across the
IPv4 Internet while preserving the original IPv6 assigned address of the network
device. (10)
,A+ Certification - ANSWER: Designed to test a person's knowledge related to PC
support and repair; pronounced A-plus. (20)
AAA proxy - ANSWER: Network device that acts as an intermediary to exchange
security packets between the AAA server and the AAA client. (15)
absorption - ANSWER: Occurs when intervening material absorbs some of the
signal. (3)
access method - ANSWER: Method of gaining ac-chess to the network media. (6)
access port - ANSWER: Hub connection to which each network cable is connected.
(1)
acoustical 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)
ACPI Component Architecture (ACPICA) - ANSWER: Extension to the original
ACPI standard. (9)
,Active Directory (AD) - ANSWER: Windows Server standard used to manage large
and small network systems. (7)
active hub - ANSWER: Enhanced passive hub; also called an intelligent hub or
switch. (1)
active partition - ANSWER: Describes the partition that contains the operating
system files the computer should use to boot. (17)
ad hoc mode - ANSWER: Wireless network arrangement in which a wireless access
point is not present. (4)
adaptive cut-through - ANSWER: Frame-forwarding technique that operates as cut-
through until an unaccepted-able number of corrupt frames are detected. (11)
Address Resolution Protocol (ARP) - ANSWER: Communication protocol that
resolves an assigned IPv4 network address to a physical address (MAC address). (6)
Address Resolution Protocol (ARP) - ANSWER: Used to map the host MAC address
to the logical host IP address. (10)
administrative server - ANSWER: Administers network security and activities. (1)
, alien crosstalk (AXT) - 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) - ANSWER: Private, nonprofit
organization that does not develop standards, but rather prompts voluntary
conformity and standardization. (1)
American Standard Code for Information Interchange (ASCII) - ANSWER: Early
attempt to standard-size data codes. (5)
amplifier - ANSWER: Electronic device designed to raise a signal's amplitude. (2)
analog signal - ANSWER: Signal that has a continuous range of values, much like a
wave. (2)
analog-to-digital converter (ADC) - ANSWER: Computer chip designed to change
an analog signal to a digital signal. (12)
anonymous FTP site - ANSWER: Allows anyone to access the site and download or
upload files. (13)
