315-325 EOM End Of Message Flashcards
How does the node inhibit straggler messages?
Inhibit: hinder, restrain, or prevent (an action or process).
The node checks and compares the Station Serial Number SSN in format line 2 to the EOM in format line 15
What does SSN stand for?
Station Serial Number
What will happen to messages containing unlike numbers or missing in either line?
Rejection by the node and the input station will be advised by an automatically generated service message of a possible straggler message condition
What must CODRESS messages contain in format line 2 and 4?
The transmission release code TRC
What may be the reason the CODRESS messages may require more than one transmission?
Upon Communication facilities available for routing the messages to the addressee(s)
In the instance that CODRESS messages may require more than one transmission, what will the originating station do?
Prepare a separate header for each transmission required.
When will Transmission instructions (format line 4) be used?
When the called station is required to deliver or refile the message without decrypting it.
(CODRESS messages)
When the called station(s) are also required to decrypt, refile, and/or deliver the message,
the called station routing indicator will also appear after the what?
Prosign T in Format Line 4
PTTTZHSW RUEJDCA1579 2691430-TTTT–RUFTABA.
ZNY TTTTT/BBBBB
How will the Special Handling Designation SHD messages be identified?
How many times will it be repeated?
By an Oblique signal (/) and designator, 5
PTTTZHSW RUEJDCA1579 2691430-TTTT–RUFTABA.
ZNY TTTTT/BBBBB
What will come before the Oblique signal and designator
Five security characters appearing in format line 4
PTTTZHSW RUEJDCA1579 2691430-TTTT–RUFTABA.
ZNY TTTTT/BBBBB
Physical security measures for the protection of cryptographic equipment and keying material will be in accordance with what?
National Security Agency (NSA) Guidelines: In the United States, the NSA provides detailed guidelines and standards for the physical security of cryptographic equipment and key material. These guidelines are widely used by government agencies and organizations with sensitive data.
Expeditious delivery of messages to addressees require what from tributary stations?
Maintained continuous communications with their respective nodes.
Tributary stations will not?
Arbitrarily reduce operating hours or assume unattended status.
What action will take place to reduce Tributary station hours?
forward requests to their connected node and national comm command authority, waiting for approval.
