WGU D480 Security Foundations Objective Assessment | OA Questions and Answers | 2026 Update | 100%
Correct.
Correct
Incorrect
Questions and answers
1 of 146
Term
Lightweight Directory Access Protocol (LDAP)
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389 TCP/UDP 390 TCP/UDP
395 TCP/UDP 380 TCP/UDP
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2 of 146
Term
,Which OSI Layer?
Provides transparent and reliable data transfer between computers.
Takes data from upper layers and handles details of getting the data to
destination computer
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Network Layer: OSI Layer 3 Application Layer: OSI Layer 7
Transport Layer: OSI Layer 4 Data Link Layer: OSI Layer 2
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3 of 146
Term
What OSI Layer do these protocols operate?
H.254: Call control protocol used in multimedia communication
Layer 2 Tunneling Protocol (L2TP): Tunneling protocol that supports
virtual private networks (VPNs)
Network Basic Input/Output System (NetBIOS): Allows applications on
different computers to communicate over a local area network (LAN)
and share files
Remote Procedure Call (RPC): Supports a user or process on one
computer running a program (or procedure) on a remote computer
Server Message Block (SMB): Allows remote and shared access to files,
,printers, and serial ports across a network
SOCKS: Serves as a proxy server
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Layer 4 (Transport) Layer 6 (presentation)
Layer 3 (Network) Layer 5 (Session)
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4 of 146
Term
Authenticates and encrypts IP packets to provide secure IP
communication
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Internet Protocol Security
Transport Layer Security (TLS)
(IPSec)
Secure Sockets Layer (SSL) Virtual Private Network (VPN)
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, 5 of 146
Term
Secure Shell (SSH)
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20 UDP 22 TCP
30 TCP 25 TCP
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6 of 146
Term
IPv4 or IPv6 addressing schema?
Allows broadcast messages
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IPv4 IPv5
IPv3 IPv6
Correct.
Correct
Incorrect
Questions and answers
1 of 146
Term
Lightweight Directory Access Protocol (LDAP)
Give this one a try later!
389 TCP/UDP 390 TCP/UDP
395 TCP/UDP 380 TCP/UDP
Don't know?
2 of 146
Term
,Which OSI Layer?
Provides transparent and reliable data transfer between computers.
Takes data from upper layers and handles details of getting the data to
destination computer
Give this one a try later!
Network Layer: OSI Layer 3 Application Layer: OSI Layer 7
Transport Layer: OSI Layer 4 Data Link Layer: OSI Layer 2
Don't know?
3 of 146
Term
What OSI Layer do these protocols operate?
H.254: Call control protocol used in multimedia communication
Layer 2 Tunneling Protocol (L2TP): Tunneling protocol that supports
virtual private networks (VPNs)
Network Basic Input/Output System (NetBIOS): Allows applications on
different computers to communicate over a local area network (LAN)
and share files
Remote Procedure Call (RPC): Supports a user or process on one
computer running a program (or procedure) on a remote computer
Server Message Block (SMB): Allows remote and shared access to files,
,printers, and serial ports across a network
SOCKS: Serves as a proxy server
Give this one a try later!
Layer 4 (Transport) Layer 6 (presentation)
Layer 3 (Network) Layer 5 (Session)
Don't know?
4 of 146
Term
Authenticates and encrypts IP packets to provide secure IP
communication
Give this one a try later!
Internet Protocol Security
Transport Layer Security (TLS)
(IPSec)
Secure Sockets Layer (SSL) Virtual Private Network (VPN)
Don't know?
, 5 of 146
Term
Secure Shell (SSH)
Give this one a try later!
20 UDP 22 TCP
30 TCP 25 TCP
Don't know?
6 of 146
Term
IPv4 or IPv6 addressing schema?
Allows broadcast messages
Give this one a try later!
IPv4 IPv5
IPv3 IPv6
