WGU D413 – TELECOMMUNICATIONS &
WIRELESS COMMUNICATIONS OBJECTIVE
ASSESSMENT | OA V1 AND V2 | EXAM
STUDY GUIDE 2025/2026 COMPLETE
QUESTIONS | VERIFIED ANSWERS | 100%
CORRECT | GRADED A+| PASS
GUARANTEED / RECENT VERSION
Internet Protocol Security (IPSec) - ANSWER Provides end-to-end security
across the public Internet and private networks. (15)
Internet Small Computer Systems Interface (iSCSI) - ANSWER Network
storage standard developed by the Internet Engineering Task Force (IETF). (9)
interrupt request (IRQ) - ANSWER Circuit that communicates with the CPU.
(9)
Intranet - ANSWER Private network that serves a specific group of users within
a LAN
Intra-Site Automatic Tunneling Address Protocol (ISATAP) -
ANSWER Developed jointly by Microsoft and Cisco Systems; designed to
tunnel IPv6 addresses inside IPv4 packets at the data link layer. (10)
,intrusion detection system (IDS) - ANSWER Passive system that only detects
unauthorized activity. (15)
intrusion prevention system (IPS) - ANSWER Reactive system that not only
detects unauthorized activity, but also performs some function to stop the activity
(15)
IPv6 - ANSWER The newest Internet addressing scheme is called. (10)
isolation transformer - ANSWER Device that uses a transformer to isolate a
circuit from other circuits emanating from the same electrical source. (16)
JavaScript - ANSWER Programming language that is designed to be embedded
into an HTML web page and allows the user to interact with the web page. (13)
jitter - ANSWER Consists of small staggers or hesitations in the delivery
sequence of audio or video data caused by latency or missing packets. (12)
journal file - ANSWER This log of all file activity is stored by a journaling file
system. (8)
journaling file system - ANSWER Type of file system that ensures file integrity
whenever an unexpected system shutdown occurs. (8)
, Kerberos - ANSWER A security authentication system that allows two
computers to communicate securely over a network that is not typically secure.
(15)
kernel - ANSWER Core of an operating system. (8) L
latency - ANSWER Amount of time it takes a signal to travel from its source to
its destination. (2)
layer 1 device - ANSWER Network device that makes no decisions about
where a packet is sent but rather simply moves the packet along the network path,
such as through cabling, hubs, or repeaters. (1)
layer 2 device - ANSWER Network device that makes decisions based on a
MAC address or a logical name. (1)
Layer 2 Forwarding (L2F) - ANSWER Protocol developed by Cisco Systems
that is similar to PPTP. (14)
Layer 2 Tunneling Protocol (L2TP) - ANSWER Protocol developed by
Microsoft and several other companies that combines the L2F and PPTP protocols.
(14)
layer 3 device - ANSWER Network device that makes a decision about where
to move the data based on a protocol. (1)
, lightning arrestor - ANSWER Piece of electrical equipment designed to dampen
the effects of an electrical surge caused by lightning. (16)
Lightweight Extensible Authentication Protocol (LEAP) -
ANSWER Proprietary authentication system developed by Cisco Systems for its
line of wireless access points. (15)
link aggregation - ANSWER Occurs when two or more network cables are
paralleled to increase bandwidth and provide redundancy. (11)
Link-Layer Discovery Protocol (LLDP) - ANSWER Developed as an IEEE
specification to identify devices connected on the local area network. (6)
Link-Layer Discovery Protocol-Media Endpoint Discovery (LLDP-MED) -
ANSWER Enhanced version of LLDP used for routers, switches, Voice over
Internet Protocol (VoIP) devices, and Power over Ethernet (PoE) devices. (6)
Link-Layer Topology Discovery (LLTD) - ANSWER Core protocol behind the
Microsoft Network and Sharing Center Map function in older Microsoft operating
systems. (6)
link-local - ANSWER Portion of an organization's network. (10)
Link-Local Multicast Name Resolution (LLMNR) - ANSWER Protocol that
serves the same function as a DNS server when a DNS server cannot be reached.
(6)
WIRELESS COMMUNICATIONS OBJECTIVE
ASSESSMENT | OA V1 AND V2 | EXAM
STUDY GUIDE 2025/2026 COMPLETE
QUESTIONS | VERIFIED ANSWERS | 100%
CORRECT | GRADED A+| PASS
GUARANTEED / RECENT VERSION
Internet Protocol Security (IPSec) - ANSWER Provides end-to-end security
across the public Internet and private networks. (15)
Internet Small Computer Systems Interface (iSCSI) - ANSWER Network
storage standard developed by the Internet Engineering Task Force (IETF). (9)
interrupt request (IRQ) - ANSWER Circuit that communicates with the CPU.
(9)
Intranet - ANSWER Private network that serves a specific group of users within
a LAN
Intra-Site Automatic Tunneling Address Protocol (ISATAP) -
ANSWER Developed jointly by Microsoft and Cisco Systems; designed to
tunnel IPv6 addresses inside IPv4 packets at the data link layer. (10)
,intrusion detection system (IDS) - ANSWER Passive system that only detects
unauthorized activity. (15)
intrusion prevention system (IPS) - ANSWER Reactive system that not only
detects unauthorized activity, but also performs some function to stop the activity
(15)
IPv6 - ANSWER The newest Internet addressing scheme is called. (10)
isolation transformer - ANSWER Device that uses a transformer to isolate a
circuit from other circuits emanating from the same electrical source. (16)
JavaScript - ANSWER Programming language that is designed to be embedded
into an HTML web page and allows the user to interact with the web page. (13)
jitter - ANSWER Consists of small staggers or hesitations in the delivery
sequence of audio or video data caused by latency or missing packets. (12)
journal file - ANSWER This log of all file activity is stored by a journaling file
system. (8)
journaling file system - ANSWER Type of file system that ensures file integrity
whenever an unexpected system shutdown occurs. (8)
, Kerberos - ANSWER A security authentication system that allows two
computers to communicate securely over a network that is not typically secure.
(15)
kernel - ANSWER Core of an operating system. (8) L
latency - ANSWER Amount of time it takes a signal to travel from its source to
its destination. (2)
layer 1 device - ANSWER Network device that makes no decisions about
where a packet is sent but rather simply moves the packet along the network path,
such as through cabling, hubs, or repeaters. (1)
layer 2 device - ANSWER Network device that makes decisions based on a
MAC address or a logical name. (1)
Layer 2 Forwarding (L2F) - ANSWER Protocol developed by Cisco Systems
that is similar to PPTP. (14)
Layer 2 Tunneling Protocol (L2TP) - ANSWER Protocol developed by
Microsoft and several other companies that combines the L2F and PPTP protocols.
(14)
layer 3 device - ANSWER Network device that makes a decision about where
to move the data based on a protocol. (1)
, lightning arrestor - ANSWER Piece of electrical equipment designed to dampen
the effects of an electrical surge caused by lightning. (16)
Lightweight Extensible Authentication Protocol (LEAP) -
ANSWER Proprietary authentication system developed by Cisco Systems for its
line of wireless access points. (15)
link aggregation - ANSWER Occurs when two or more network cables are
paralleled to increase bandwidth and provide redundancy. (11)
Link-Layer Discovery Protocol (LLDP) - ANSWER Developed as an IEEE
specification to identify devices connected on the local area network. (6)
Link-Layer Discovery Protocol-Media Endpoint Discovery (LLDP-MED) -
ANSWER Enhanced version of LLDP used for routers, switches, Voice over
Internet Protocol (VoIP) devices, and Power over Ethernet (PoE) devices. (6)
Link-Layer Topology Discovery (LLTD) - ANSWER Core protocol behind the
Microsoft Network and Sharing Center Map function in older Microsoft operating
systems. (6)
link-local - ANSWER Portion of an organization's network. (10)
Link-Local Multicast Name Resolution (LLMNR) - ANSWER Protocol that
serves the same function as a DNS server when a DNS server cannot be reached.
(6)
