OPERATING SYSTEMS FOR PROGRAMMERS
WGU C191 ACTUAL TEST PAPER 2026
VERIFIED QUESTIONS WITH COMPLETE
ACCURATE ANSWERS GRADED A+
⩥ Cracker.
Answer: Someone attempting to breach security.
⩥ Threat.
Answer: The potential for a security violation.
⩥ Attack.
Answer: An attempt to break security.
⩥ Denial-of-Service (DoS).
Answer: An attack that attempts to disrupt or prevent legitimate use of a
system.
⩥ Trojan Horse.
Answer: A code segment that tries to misuse its environment.
⩥ Virus.
,Answer: A malicious fragment of code embedded in a legitimate
program.
⩥ Worm.
Answer: Similar to a virus, but self replicates throughout a network.
⩥ Domain.
Answer: Specifies resources a process may access. Specifies a set of
objects and the operations that may be invoked on those objects. Set of
access rights.
⩥ Protection.
Answer: A mechanism for controlling the access of programs, processes,
or users to the resources defined by a computer system.
⩥ Security.
Answer: Requires not only an adequate protection of system, but also
consideration of the external environment within which the system
operates (i.e., threats and attacks).
⩥ Breach of Confidentiality.
Answer: Gaining access to information, credit card numbers, personal
information, etc.
,⩥ Breach of Integrity.
Answer: Modified data.
⩥ Breach of Availability.
Answer: Destruction of data.
⩥ Theft of Service.
Answer: Unauthorized use of resources such as using a server as a
personal file server.
⩥ Trap Door.
Answer: A hole purposely left in a software program that only the
programmer is capable of using.
⩥ UNIX Domain Association.
Answer: A UNIX domain is associated with a user.
⩥ Masquerading.
Answer: The most common method used by an attacker.
⩥ Principle of Least Privilege.
Answer: Where just enough privilege is given to perform a task.
, ⩥ Need-to-Know Principle.
Answer: Where a process is only given access to resources it currently
needs.
⩥ Copy and Owner Rights.
Answer: Rights needed to change entries in a column of an access
matrix.
⩥ Control Rights.
Answer: Rights needed to change entries in a row of an access matrix.
⩥ Role-Based Access Control.
Answer: A type of control where privileges and programs are assigned
roles, and users are assigned roles based on passwords.
⩥ Compiler-Based Enforcement.
Answer: A type of enforcement where protection needs are declared
rather than programmed.
⩥ Kernel-Based Enforcement.
Answer: Enforcement provided by the subsystem designer.
WGU C191 ACTUAL TEST PAPER 2026
VERIFIED QUESTIONS WITH COMPLETE
ACCURATE ANSWERS GRADED A+
⩥ Cracker.
Answer: Someone attempting to breach security.
⩥ Threat.
Answer: The potential for a security violation.
⩥ Attack.
Answer: An attempt to break security.
⩥ Denial-of-Service (DoS).
Answer: An attack that attempts to disrupt or prevent legitimate use of a
system.
⩥ Trojan Horse.
Answer: A code segment that tries to misuse its environment.
⩥ Virus.
,Answer: A malicious fragment of code embedded in a legitimate
program.
⩥ Worm.
Answer: Similar to a virus, but self replicates throughout a network.
⩥ Domain.
Answer: Specifies resources a process may access. Specifies a set of
objects and the operations that may be invoked on those objects. Set of
access rights.
⩥ Protection.
Answer: A mechanism for controlling the access of programs, processes,
or users to the resources defined by a computer system.
⩥ Security.
Answer: Requires not only an adequate protection of system, but also
consideration of the external environment within which the system
operates (i.e., threats and attacks).
⩥ Breach of Confidentiality.
Answer: Gaining access to information, credit card numbers, personal
information, etc.
,⩥ Breach of Integrity.
Answer: Modified data.
⩥ Breach of Availability.
Answer: Destruction of data.
⩥ Theft of Service.
Answer: Unauthorized use of resources such as using a server as a
personal file server.
⩥ Trap Door.
Answer: A hole purposely left in a software program that only the
programmer is capable of using.
⩥ UNIX Domain Association.
Answer: A UNIX domain is associated with a user.
⩥ Masquerading.
Answer: The most common method used by an attacker.
⩥ Principle of Least Privilege.
Answer: Where just enough privilege is given to perform a task.
, ⩥ Need-to-Know Principle.
Answer: Where a process is only given access to resources it currently
needs.
⩥ Copy and Owner Rights.
Answer: Rights needed to change entries in a column of an access
matrix.
⩥ Control Rights.
Answer: Rights needed to change entries in a row of an access matrix.
⩥ Role-Based Access Control.
Answer: A type of control where privileges and programs are assigned
roles, and users are assigned roles based on passwords.
⩥ Compiler-Based Enforcement.
Answer: A type of enforcement where protection needs are declared
rather than programmed.
⩥ Kernel-Based Enforcement.
Answer: Enforcement provided by the subsystem designer.
