COMSEC Study Guide Exam Questions with
100% Correct Answers Latest Versions 2025
Top Rated
1. What is the minimum classification of COMSEC key material when loaded into cryptographic
equipment?
a) Unclassified
b) Confidential
c) Secret
d) Top Secret
*Answer: b* (All keyed material is at least CONFIDENTIAL)
2. Who is authorized to change the combination to the COMSEC safe?
a) Any hand receipt holder
b) Only the COMSEC Custodian or Alternate
c) The unit commander
d) The security manager
*Answer: b*
3. Two-Person Integrity (TPI) is required for all of the following EXCEPT:
a) Loading key into a SKL
b) Destroying TOP SECRET key
c) Viewing plaintext key segments
d) Conducting semiannual inventory of unkeyed CCI
, *Answer: d* (TPI not required for unkeyed CCI inventory)
4. How soon must a COMSEC incident be reported to the COR?
a) Immediately, not to exceed 24 hours
b) Within 72 hours
c) Within 7 days
d) Only if it’s a compromise
*Answer: a*
5. Which form records the destruction of COMSEC material?
*Answer: SF-135*
6. You discover a sealed COMSEC canister with a broken seal. This is a:
a) Practice
b) Physical incident
c) Cryptoinsecurity
d) Administrative discrepancy
*Answer: b* (Tampered/broken seal = physical security incident)
7. Which key requires 100% page checks every 6 months?
a) Modern key in SKL
b) Traditional paper key (KOI-18, KYK-13 tape)
c) BENIGN fill
d) Unclassified CCI key
*Answer: b*
, 8. Who approves hand-carrying COMSEC material on commercial aircraft?
a) COMSEC Custodian
b) CONAUTH (Controlling Authority) only
c) Unit commander
d) NSA
*Answer: b*
9. SF-700 is used for:
a) Storing the safe combination
b) Transferring accountability
c) Destruction reporting
d) Inventory
*Answer: a* (Security Container Information)
Here is the continuation starting from Question 10. All questions are current 2024–2025
DoD/COMSEC exam level.
10. SF-701 is used for:
a) Safe combination storage
b) Activity Security Checklist (end-of-day check)
c) Destruction report
d) Inventory
*Answer: b* (Must be completed daily and retained 30 days)
11. SF-702 is used for:
a) Safe combination
100% Correct Answers Latest Versions 2025
Top Rated
1. What is the minimum classification of COMSEC key material when loaded into cryptographic
equipment?
a) Unclassified
b) Confidential
c) Secret
d) Top Secret
*Answer: b* (All keyed material is at least CONFIDENTIAL)
2. Who is authorized to change the combination to the COMSEC safe?
a) Any hand receipt holder
b) Only the COMSEC Custodian or Alternate
c) The unit commander
d) The security manager
*Answer: b*
3. Two-Person Integrity (TPI) is required for all of the following EXCEPT:
a) Loading key into a SKL
b) Destroying TOP SECRET key
c) Viewing plaintext key segments
d) Conducting semiannual inventory of unkeyed CCI
, *Answer: d* (TPI not required for unkeyed CCI inventory)
4. How soon must a COMSEC incident be reported to the COR?
a) Immediately, not to exceed 24 hours
b) Within 72 hours
c) Within 7 days
d) Only if it’s a compromise
*Answer: a*
5. Which form records the destruction of COMSEC material?
*Answer: SF-135*
6. You discover a sealed COMSEC canister with a broken seal. This is a:
a) Practice
b) Physical incident
c) Cryptoinsecurity
d) Administrative discrepancy
*Answer: b* (Tampered/broken seal = physical security incident)
7. Which key requires 100% page checks every 6 months?
a) Modern key in SKL
b) Traditional paper key (KOI-18, KYK-13 tape)
c) BENIGN fill
d) Unclassified CCI key
*Answer: b*
, 8. Who approves hand-carrying COMSEC material on commercial aircraft?
a) COMSEC Custodian
b) CONAUTH (Controlling Authority) only
c) Unit commander
d) NSA
*Answer: b*
9. SF-700 is used for:
a) Storing the safe combination
b) Transferring accountability
c) Destruction reporting
d) Inventory
*Answer: a* (Security Container Information)
Here is the continuation starting from Question 10. All questions are current 2024–2025
DoD/COMSEC exam level.
10. SF-701 is used for:
a) Safe combination storage
b) Activity Security Checklist (end-of-day check)
c) Destruction report
d) Inventory
*Answer: b* (Must be completed daily and retained 30 days)
11. SF-702 is used for:
a) Safe combination
