2026/2027
NSC Examination Comprehensive
Study Guide and Practice Test Bank
2026/2027 for Complete Subject
Mastery and Exam Readiness
Question 1: Insider Threat Indicators
Which of the following is NOT considered an indicator of an insider threat?
A. Working inconsistent hours without justification
B. Reporting foreign contacts through official channels
C. Unexplained affluence or living beyond means
D. Illegal downloading of classified files
Correct Answer: B. Reporting foreign contacts through official channels
Rationale:
Properly reporting foreign contacts demonstrates compliance with security
requirements and does not indicate suspicious behavior. Insider threat indicators
include behaviors such as unexplained wealth, unauthorized access or downloading of
information, inconsistent working patterns, and failure to report foreign interactions.
These behaviors may suggest espionage risk, negligence, or susceptibility to
exploitation.
Question 2: Critical Program Information (CPI)
Which best describes elements of Critical Program Information?
A. Information that is publicly available but sensitive to morale
B. Information that could only affect administrative workflow if compromised
C. Information whose compromise could significantly degrade mission effectiveness
D. Information unrelated to combat capability
Correct Answer: C. Information whose compromise could significantly degrade
mission effectiveness
Rationale:
Critical Program Information includes elements whose compromise could reduce
technological advantage, shorten system life, or allow adversaries to defeat or reverse-
engineer capabilities. Options A, B, and D are incorrect because CPI specifically
relates to mission-critical defense capabilities, not administrative or public
information.
,2026/2027
Question 3: Risk Management Process
What is the correct order of the DoD risk management process?
A. Assess risks → Assess threats → Determine countermeasures
B. Assess assets → Assess threats → Assess vulnerabilities → Assess risks
C. Identify vulnerabilities → implement controls → evaluate assets
D. Determine countermeasures → assess assets → assess threats
Correct Answer: B. Assess assets → Assess threats → Assess vulnerabilities →
Assess risks
Rationale:
Risk management begins with identifying what needs protection (assets), followed by
identifying threats, then vulnerabilities, and finally assessing overall risk before
selecting countermeasures. The remaining options incorrectly reorder these
foundational steps, which could lead to ineffective security planning.
Question 4: Special Access Program Categories
Special Access Programs (SAPs) are categorized into which three groups?
A. Intelligence, operations, and logistics
B. Acquisition, intelligence, and operations & support
C. Combat, administrative, and technical
D. Classified, unclassified, and restricted
Correct Answer: B. Acquisition, intelligence, and operations & support
Rationale:
SAPs are formally divided into acquisition, intelligence, and operations & support
categories to ensure proper oversight and control of sensitive national security
programs. The other options reflect unrelated or informal classifications not used in
DoD SAP structure.
Question 5: Insider Threat Definition
Which statement best defines an insider threat?
A. A foreign government cyber attacker
B. A contractor working outside the United States
C. An employee who may pose a national security risk
D. A visitor with temporary clearance
Correct Answer: C. An employee who may pose a national security risk
,2026/2027
Rationale:
An insider threat involves individuals such as employees or contractors who, through
access privileges, may compromise national security via espionage, unauthorized
disclosure, or violent acts. External actors like foreign hackers are not classified as
insider threats.
Question 6: Foreign Visitor Program Purpose
What is the primary purpose of the Foreign Visitor Program?
A. To provide foreign employees with security clearances
B. To track and approve foreign access to classified and unclassified sensitive
information
C. To allow unrestricted access to DoD facilities
D. To issue visas for foreign contractors
Correct Answer: B. To track and approve foreign access to classified and
unclassified sensitive information
Rationale:
The program ensures controlled access for foreign nationals to classified or sensitive
U.S. government-related information and facilities. It does not grant clearances or
immigration privileges, nor does it provide unrestricted access.
Question 7: Special Access Program (SAP) Definition
A SAP is best defined as:
A. A program with relaxed security requirements
B. A classified program with additional safeguarding requirements beyond normal
classification
C. A civilian-only security program
D. A temporary access authorization system
Correct Answer: B. A classified program with additional safeguarding
requirements beyond normal classification
Rationale:
SAPs impose enhanced security measures beyond standard classification levels due to
the sensitivity of the information involved. They are not less restrictive, nor limited to
civilians, and are not temporary authorization systems.
Question 8: SAP Security Requirements
Which is a required SAP personnel security requirement?
, 2026/2027
A. Public disclosure of access status
B. Clearance only at Confidential level
C. Current SF-86 within one year
D. No need for need-to-know validation
Correct Answer: C. Current SF-86 within one year
Rationale:
SAP access requires strict personnel vetting including an up-to-date SF-86,
appropriate clearance level (Secret or Top Secret), and need-to-know validation.
Confidential clearance or lack of need-to-know is insufficient.
Question 9: Cognizant Security Agencies (CSAs)
Which organization is NOT a Cognizant Security Agency?
A. Department of Energy
B. Department of Homeland Security
C. Federal Bureau of Investigation
D. Department of Defense
Correct Answer: C. Federal Bureau of Investigation
Rationale:
CSAs include DoD, DOE, DHS, DNI, and NRC. The FBI supports security efforts
but is not designated as a CSA under the National Industrial Security Program.
Question 10: Foreign Ownership, Control, or Influence (FOCI)
Which factor is considered when assessing FOCI?
A. Employee salary levels
B. Foreign government ownership or control
C. Company marketing strategy
D. Office location within the U.S.
Correct Answer: B. Foreign government ownership or control
Rationale:
FOCI assessments evaluate foreign influence, ownership, and control over U.S.
companies, especially regarding access to classified information. Financial or
marketing factors are not relevant to FOCI determination.
Question 11: Security Violation
A security violation is defined as:
NSC Examination Comprehensive
Study Guide and Practice Test Bank
2026/2027 for Complete Subject
Mastery and Exam Readiness
Question 1: Insider Threat Indicators
Which of the following is NOT considered an indicator of an insider threat?
A. Working inconsistent hours without justification
B. Reporting foreign contacts through official channels
C. Unexplained affluence or living beyond means
D. Illegal downloading of classified files
Correct Answer: B. Reporting foreign contacts through official channels
Rationale:
Properly reporting foreign contacts demonstrates compliance with security
requirements and does not indicate suspicious behavior. Insider threat indicators
include behaviors such as unexplained wealth, unauthorized access or downloading of
information, inconsistent working patterns, and failure to report foreign interactions.
These behaviors may suggest espionage risk, negligence, or susceptibility to
exploitation.
Question 2: Critical Program Information (CPI)
Which best describes elements of Critical Program Information?
A. Information that is publicly available but sensitive to morale
B. Information that could only affect administrative workflow if compromised
C. Information whose compromise could significantly degrade mission effectiveness
D. Information unrelated to combat capability
Correct Answer: C. Information whose compromise could significantly degrade
mission effectiveness
Rationale:
Critical Program Information includes elements whose compromise could reduce
technological advantage, shorten system life, or allow adversaries to defeat or reverse-
engineer capabilities. Options A, B, and D are incorrect because CPI specifically
relates to mission-critical defense capabilities, not administrative or public
information.
,2026/2027
Question 3: Risk Management Process
What is the correct order of the DoD risk management process?
A. Assess risks → Assess threats → Determine countermeasures
B. Assess assets → Assess threats → Assess vulnerabilities → Assess risks
C. Identify vulnerabilities → implement controls → evaluate assets
D. Determine countermeasures → assess assets → assess threats
Correct Answer: B. Assess assets → Assess threats → Assess vulnerabilities →
Assess risks
Rationale:
Risk management begins with identifying what needs protection (assets), followed by
identifying threats, then vulnerabilities, and finally assessing overall risk before
selecting countermeasures. The remaining options incorrectly reorder these
foundational steps, which could lead to ineffective security planning.
Question 4: Special Access Program Categories
Special Access Programs (SAPs) are categorized into which three groups?
A. Intelligence, operations, and logistics
B. Acquisition, intelligence, and operations & support
C. Combat, administrative, and technical
D. Classified, unclassified, and restricted
Correct Answer: B. Acquisition, intelligence, and operations & support
Rationale:
SAPs are formally divided into acquisition, intelligence, and operations & support
categories to ensure proper oversight and control of sensitive national security
programs. The other options reflect unrelated or informal classifications not used in
DoD SAP structure.
Question 5: Insider Threat Definition
Which statement best defines an insider threat?
A. A foreign government cyber attacker
B. A contractor working outside the United States
C. An employee who may pose a national security risk
D. A visitor with temporary clearance
Correct Answer: C. An employee who may pose a national security risk
,2026/2027
Rationale:
An insider threat involves individuals such as employees or contractors who, through
access privileges, may compromise national security via espionage, unauthorized
disclosure, or violent acts. External actors like foreign hackers are not classified as
insider threats.
Question 6: Foreign Visitor Program Purpose
What is the primary purpose of the Foreign Visitor Program?
A. To provide foreign employees with security clearances
B. To track and approve foreign access to classified and unclassified sensitive
information
C. To allow unrestricted access to DoD facilities
D. To issue visas for foreign contractors
Correct Answer: B. To track and approve foreign access to classified and
unclassified sensitive information
Rationale:
The program ensures controlled access for foreign nationals to classified or sensitive
U.S. government-related information and facilities. It does not grant clearances or
immigration privileges, nor does it provide unrestricted access.
Question 7: Special Access Program (SAP) Definition
A SAP is best defined as:
A. A program with relaxed security requirements
B. A classified program with additional safeguarding requirements beyond normal
classification
C. A civilian-only security program
D. A temporary access authorization system
Correct Answer: B. A classified program with additional safeguarding
requirements beyond normal classification
Rationale:
SAPs impose enhanced security measures beyond standard classification levels due to
the sensitivity of the information involved. They are not less restrictive, nor limited to
civilians, and are not temporary authorization systems.
Question 8: SAP Security Requirements
Which is a required SAP personnel security requirement?
, 2026/2027
A. Public disclosure of access status
B. Clearance only at Confidential level
C. Current SF-86 within one year
D. No need for need-to-know validation
Correct Answer: C. Current SF-86 within one year
Rationale:
SAP access requires strict personnel vetting including an up-to-date SF-86,
appropriate clearance level (Secret or Top Secret), and need-to-know validation.
Confidential clearance or lack of need-to-know is insufficient.
Question 9: Cognizant Security Agencies (CSAs)
Which organization is NOT a Cognizant Security Agency?
A. Department of Energy
B. Department of Homeland Security
C. Federal Bureau of Investigation
D. Department of Defense
Correct Answer: C. Federal Bureau of Investigation
Rationale:
CSAs include DoD, DOE, DHS, DNI, and NRC. The FBI supports security efforts
but is not designated as a CSA under the National Industrial Security Program.
Question 10: Foreign Ownership, Control, or Influence (FOCI)
Which factor is considered when assessing FOCI?
A. Employee salary levels
B. Foreign government ownership or control
C. Company marketing strategy
D. Office location within the U.S.
Correct Answer: B. Foreign government ownership or control
Rationale:
FOCI assessments evaluate foreign influence, ownership, and control over U.S.
companies, especially regarding access to classified information. Financial or
marketing factors are not relevant to FOCI determination.
Question 11: Security Violation
A security violation is defined as:
