WGU, Information Security and Assurance (C725), SET
III 2024 Questions and Answers(100% Verified)
A job title: Have access to information resources in accordance with the owner-
defined controls and access rules.
Users
One purpose of a security awareness program is to modify which of the
following?
A. Employees' attitudes and behaviors
B. Management's approach
C. Attitudes of employees toward sensitive data
D. Corporate attitudes about safeguarding data
A. Employees' attitudes and behaviors
Explanation:
Because people are the weakest link in any security-related process, it's crucial that a
security program address user education, awareness, and training on policies and
procedures that affect them.
The totality of protection mechanisms within a computer system, including
hardware, firmware, and software. It consists of one or more components that
together enforce a unified security policy over a product or system
Trusted Computing Base (TCB)
A software model that mediates all access from any subject (user or other device)
to any object (resource, data, and so forth);
it cannot be bypassed.It mediates accesses to objects by subjects. In principle, it
should be:
Complete, to mediate every access
Isolated from modification by other system entities (objects and processes)
Verifiable, doing only what it's programmed to do and not being susceptible to
circumvention by malicious acts or programmer error
reference monitor
a.k.a. abstract machine
Implementation of a reference monitor for a specific hardware base, such as Sun
Solaris, Red Hat Linux, or Mac OS X.
security kernel
The TCB, reference monitor, and security kernel are essential for military- and
, government-grade information technology (IT) security to prevent unauthorized access
or threats to the integrity of programs, operating systems, or data.
T or F
In "The ring of trust" Trust in a system moves from the outside to the inside in a
unidirectional mode.
True
T or F
Multics was the first operating system to provide a hierarchical file system
True
Which of the following terms best defines the sum of protection mechanisms
inside the computer, including hardware, firmware, and software?
A . Trusted system
B .Security kernel
C. Trusted computing base
D. Security perimeter
C. Trusted computing base
Explanation:
The Trusted Computing Base (TCB) is the totality of protection mechanisms within a
computer system, including hardware, firmware, and software.
A TCB practice in which a design objective in which each process has its own
distinct address space for its application code and data. Such a design makes it
possible to prevent each process from accessing another process's data. This
prevents data or information leakage and prevents modification of the data while
in memory.
Process isolation
A TCB practice in which a process (program) have no more privilege than what it
really needs to perform its functions. Any modules that require supervisor or root
access (that is, complete system privileges) are embedded in the operating
system kernel. The kernel handles all requests for system resources and
mediates the access from external modules to privileged modules when required.
The principle of least privilege
A TCB practice in which specifically relates to the segmentation of memory into
protected segments. The kernel allocates the required amount of memory for the
process to load its application code, its process data, and its application data.
The system prevents user processes from accessing another process's allocated
memory. It also prevents user processes from accessing system memory.
Hardware segmentation
A TCB practice in which process operation that is divided into layers by function.
Each layer deals with a specific activity. The lower (outer) layers perform basic
tasks, whereas the higher (inner) layers perform more complex or protected
tasks.
III 2024 Questions and Answers(100% Verified)
A job title: Have access to information resources in accordance with the owner-
defined controls and access rules.
Users
One purpose of a security awareness program is to modify which of the
following?
A. Employees' attitudes and behaviors
B. Management's approach
C. Attitudes of employees toward sensitive data
D. Corporate attitudes about safeguarding data
A. Employees' attitudes and behaviors
Explanation:
Because people are the weakest link in any security-related process, it's crucial that a
security program address user education, awareness, and training on policies and
procedures that affect them.
The totality of protection mechanisms within a computer system, including
hardware, firmware, and software. It consists of one or more components that
together enforce a unified security policy over a product or system
Trusted Computing Base (TCB)
A software model that mediates all access from any subject (user or other device)
to any object (resource, data, and so forth);
it cannot be bypassed.It mediates accesses to objects by subjects. In principle, it
should be:
Complete, to mediate every access
Isolated from modification by other system entities (objects and processes)
Verifiable, doing only what it's programmed to do and not being susceptible to
circumvention by malicious acts or programmer error
reference monitor
a.k.a. abstract machine
Implementation of a reference monitor for a specific hardware base, such as Sun
Solaris, Red Hat Linux, or Mac OS X.
security kernel
The TCB, reference monitor, and security kernel are essential for military- and
, government-grade information technology (IT) security to prevent unauthorized access
or threats to the integrity of programs, operating systems, or data.
T or F
In "The ring of trust" Trust in a system moves from the outside to the inside in a
unidirectional mode.
True
T or F
Multics was the first operating system to provide a hierarchical file system
True
Which of the following terms best defines the sum of protection mechanisms
inside the computer, including hardware, firmware, and software?
A . Trusted system
B .Security kernel
C. Trusted computing base
D. Security perimeter
C. Trusted computing base
Explanation:
The Trusted Computing Base (TCB) is the totality of protection mechanisms within a
computer system, including hardware, firmware, and software.
A TCB practice in which a design objective in which each process has its own
distinct address space for its application code and data. Such a design makes it
possible to prevent each process from accessing another process's data. This
prevents data or information leakage and prevents modification of the data while
in memory.
Process isolation
A TCB practice in which a process (program) have no more privilege than what it
really needs to perform its functions. Any modules that require supervisor or root
access (that is, complete system privileges) are embedded in the operating
system kernel. The kernel handles all requests for system resources and
mediates the access from external modules to privileged modules when required.
The principle of least privilege
A TCB practice in which specifically relates to the segmentation of memory into
protected segments. The kernel allocates the required amount of memory for the
process to load its application code, its process data, and its application data.
The system prevents user processes from accessing another process's allocated
memory. It also prevents user processes from accessing system memory.
Hardware segmentation
A TCB practice in which process operation that is divided into layers by function.
Each layer deals with a specific activity. The lower (outer) layers perform basic
tasks, whereas the higher (inner) layers perform more complex or protected
tasks.
