LESSON 2
PRACTICE EXERCISE
ANSWER KEY AND FEEDBACK
Item
Correct Answer and Feedback
1
A. National identification number
NATO members have reached a standardization agreement (STANAG) to use a
unique three-digit national identification number. The NI code serves as the first
three digits of a 13-digit telephone number for NATO intercountry calls. (page 2-2,
para 1a)
2
A. True
In assigning tactical area codes, planners should avoid duplicating existing DSN area
codes. (page 2-2, para 1b)
3
C. 914
The NI code for the tactical US forces is 914. (page 2-2, para 1a)
4
A. The MYX area where the NNX and PRSL subnetworks coexist
In a mixed subnetwork, both PRSL and NNX subnetworks coexist within a single
MYX area. (page 2-3, para 1f)
5
B. Area code
The NYX in the commercial numbering systems represents the area code. (page 2-3,
para 2a)
6
D. 7-digit
Tactical units use a seven-digit numbering plan. (page 2-4, para 2c)
7
C. AN/TTC-39/39A
We can program the AN/TTC-39 and the AN/TTC-39A to support three distinct
numbering plans-general tactical, strategic, and NATO. (page 2-4, 3a)
SS 0029
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