310-313 Operating Rules

Question 1

What type of traffic has required security protection?

Answer 1

Classified

Question 2

What does a node do as each message is transmitted?

Answer 2

Automatically check and compare the security classification in the header to the destination.

Question 3

What are the methods taken when a node finds a security/classification mismatch(Single an Mismatch)?

Answer 3

Single-Rejecting the message. Alarm conditions will appear at the originating terminal indicating to re-protect the message.

Multiple-Sends to deliverables if any, automatically sends advisory to re-protect routing indicators of the faulty destinations.

Question 4

What terminals receive service message after a security mismatch?

Answer 4

Mode II and IV terminals.

Question 5

What automatically checks and compares messages containing a TRC?

Answer 5

A Node

Question 6

What is located in the redundant security fields of the message header?

Answer 6

TRC

Question 7

In classified narrative messages what is contained as the first word of each text?

Answer 7

Security classification

Question 8

What is the proper way to type a classification in a narrative message?

Answer 8

S E C R E T

Question 9

A classified message received in the clear over a non-approved or non-secure
circuit is considered to?

Answer 9

have been subjected to possible compromise

Question 10

When a requirement exists to transmit a classified message in plain language over
a non-secured circuit what 2 procedures apply:

Answer 10

-The designator “U” will be used in format lines 2 and 4 as applicable

-In messages prepared in PLAINDRESS or ABBREVIATED
PLAINDRESS format, the word CLEAR will be the first word in format line 12.

Question 11

TRC rules as defined in Chapter 5 apply to what?

Answer 11

messages addressed and routed to
regional defense organizations or other nations