OS2 SWE Exam Study Guide Questions With 100% Verified Solutions
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OS2 SWE
How many Tiers are in the EKMS system? -Answer- Four
TIER 0 -Answer- (Central Facility(NSA)) - Composite of NSA's Fort Meade and Finksburg key facilities that provides centralized key management services for all forms of key.
TIER 1 -Answer- (Distribution) - The layer of the EKMS which serves...
OS2 SWE Exam Study Guide Questions
With 100% Verified Solutions 2024-2025
How many Tiers are in the EKMS system? -Answer- ✔Four
TIER 0 -Answer- ✔(Central Facility(NSA)) - Composite of NSA's Fort Meade and
Finksburg key facilities that provides centralized key management services for all
forms of key.
TIER 1 -Answer- ✔(Distribution) - The layer of the EKMS which serves as the
intermediate key generation and distribution center, central offices of record
(COR), privilege managers, and registration authorities for EKMS/COMSEC
accounts. Management of the system is a cooperative.
TIER 2 -Answer- ✔(Cutter Accounts) - The layer of EKMS comprised of the
EKMS Accounts that manage key and other COMSEC material. Most Tier 2
accounts are equipped with a Local Management Device (LMD) that runs Local
COMSEC Management Software (LCMS) and that interfaces with a Key
Processor (KP). This suite of equipment is referred to as a LMD/KP.
TIER 3 -Answer- ✔(SKLs or DTDs) - The lowest tier or layer of the EKMS
architecture which includes but is not limited to; the AN/CYZ-10 (Data Transfer
Device (DTD), AN/PYQ-10 (Simple Key Loader (SKL) and all other means used
to fill key to End Cryptographic Units (ECU s); hard copy material holdings only;
and STE keying material only using Key Management Entities (KMEs) (i.e., Local
Elements (LEs)).
Who operates/runs the Central Facility and what tier is the Central Facility? -
Answer- ✔NSA/0
Who acts as the Service authority and exercises overall authority for USCG
COMSEC matters & is the program manager? -Answer- ✔USCG C4IT Service
Center Information Assurance Branch (C4ITSC-BOD-IAB)
At a minimum... how often must a CO conduct spot checks? Bonus... how many
may be delegated to the XO? -Answer- ✔At least 4/No more than 2.
The CO, OIC or SCMSRO, as applicable is required to conduct a minimum of (1)
spot check per quarter and may delegate no more than two of the four quarterly
spot checks to the Executive Officer.
What are the 3 types of EKMS incidents? -Answer- ✔Cryptographic, Personnel,
and Physical incident reports.
What is a SF-703? -Answer- ✔Cover Sheet Top Secret, COMDTINST M5510.23A
SF700 -Answer- ✔Security Container Information
SF701 -Answer- ✔Activity Security Checklist
OS2 SWE Study Guide
,OS2 SWE Study Guide
SF702 -Answer- ✔Security Container Checksheet
SF703 -Answer- ✔Top Secret (Coversheet)
SF704 -Answer- ✔Secret (Cover Sheet)
SF705 -Answer- ✔Confidential (Cover Sheet)
SF706 -Answer- ✔Top Secret (Label)
SF707 -Answer- ✔Secret (Label)
SF708 -Answer- ✔Confidential (Label)
SF709 -Answer- ✔Classified (Label)
SF710 -Answer- ✔Unclassified (Label)
How often shall Emergency Action Plan (EAP) tests be conducted? -Answer-
✔The frequency of the EAP tests shall be at the discretion of the Commanding
Officer, but no less than once per year.
Can Secret material be shipped via USPS registered mail within and between the
50 United States and its territories? -Answer- ✔Yes
OS2 SWE Study Guide
, OS2 SWE Study Guide
What is the default combinations for safes? -Answer- ✔50-25-50, when taken out
of service, built-in combination locks are then reset to the standard combination
50-25-50; combination padlocks are reset to the standard combination 10-20-30
What type of incident has occurred when any uninvestigated or unevaluated,
investigated or evaluated occurrence that has the potential to jeopardize the
security of COMSEC material or the secure transmission of classified or sensitive
government information? -Answer- ✔COMSEC Incident
How deep must the water be to jettison crypto overboard? -Answer- ✔1000
fathoms or 6000 feet
What are the types of secured spaces? -Answer- ✔-An exclusion area is the most
secure type of restricted area.
-A limited area is the second most secure type of restricted area.
-A controlled area is the least secure type of restricted area. It may also serve as a
buffer zone for exclusion and limited areas.
How many AL codes are there in EKMS? -Answer- ✔Five;
ALC 1, 2, 4, 6, & 7
AL Code 1 -Answer- ✔COMSEC material is continuously accountable to the COR
by accounting (serial/register) number from production to destruction.
OS2 SWE Study Guide
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