3-43.
3-44.
3-45.
What are the primary
advantages of (a)
over-the-air rekey (OTAR)
and (b) over-the-air
transfer (OTAT)?
1.
2.
3.
4.
(a) Requires less
circuit downtime for
loading keylists, and
(b) no operator training
required
(a) Reduces distribution
of physical keying
material, and (b)
eliminates process of
loading equipment with
key tapes
(a) Reduces distribution
of physical keying
material, and (b) no
operator training
required
(a) Eliminates process
of loading equipment
with key tapes, and (b)
no operator training
required
What is the purpose of
transmission authentication?
1.
2.
3.
4.
The
To guard against
fraudulent or simulated
transmissions
To inform the other
operator that you are
receiving the
transmission
To acknowledge the
transmission of the
other operator
To allow the other
operator to acknowledge
your transmission
self-authentication
method is used in which of
the following transmissions?
1.
Transmission and reply
2.
Challenge and reply
3.
Transmission
authentication
4.
Challenge authentication
3-46.
When you receive a message
that has an authenticator in
it, what action, if any, are
you required to take?
1.
Prepare a message to
challenge the originator
2.
Send a message that you
are in receipt of the
message
3.
Pass the message on to
higher authority for
them to challenge the
originator
4.
None
3-47.
As an operator, you are
required to authenticate in
which of the following
situations?
1.
You suspect intrusion on
the circuit
2.
You are requested to
authenticate
3.
You are requested to
break radio silence
4.
Each of the above
A.
Meaconing
B.
Interference
C.
Jamming
D.
Intrusion
Figure 3D
IN ANSWERING QUESTIONS 3-48 THROUGH
3-51, SELECT THE TERM FROM FIGURE
3D THAT IS DEFINED.
3-48.
The interception and
rebroadcast of navigational
signals on the same
frequency.
1. A
2. B
3. C
4. D
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