CDC Vol 3, 422 Introduction to Tactical Data Links

Question 1

• Senders and receivers use the information that is exchanged over TDL for what purpose?

Answer 1

To establish a picture of a tactical situation of common interest.

Question 2

• What mode of communication do operators use to troubleshoot problems associated with link failure?

Answer 2

Operators use voice communications to coordinate link problems.

Question 3

• What is the overall design of the communications system forming the multi-tactical network (MTN) called?

Answer 3

Define link architecture.

Question 4

• When operating in the roll call architecture, who is responsible for polling each unit and requesting transmission of their data?

Answer 4

The DNCS (Data Net Control Station)

Question 5

• Explain the difference between simplex and full-duplex communications.

Answer 5

During simplex operations, net participants are restricted from transmitting while receiving data. Full duplex is capable of transmitting and receiving data simultaneously.

Question 6

• What term refers to the computer language used in transmitting TDL messages?

Answer 6

Message format.

Question 7

What is the normal tactical employment range for the transmission of up ______ miles?

Answer 7

1,000 Miles

Question 8

What is the standard that ensures joint interoperability among all systems and is used by manufactures to build TDL equipment?

Answer 8

Military Standard (MIL-STD)

Question 9

What prevents random data transmission and precludes destructive signal interference?

Answer 9

Establishing strict transmission and reception standards.

Question 10

What is the basis on which rules are developed governing access to link information?

Answer 10

Timing architecture

Question 11

What are the three most common types of timing architecture?

Answer 11

• Polling
• Round Robin
• Point-to-Point Simplex and Full Duplex

Question 12

What architecture is also called roll call?

Answer 12

Pulling architecture

Question 13

What timing architecture is each unit assigned a specific time to transmit its data to other link participants?

Answer 13

Round Robin

Question 14

Does a round robin timing architecture need a DNCS?

Answer 14

No

Question 15

What type of data links extensively use full duplex?

Answer 15

• 11B
• Army Tactical Data Link (ATDL)-1
• Link 1

Question 16

What is the most common method to transmit TDL signals?

Answer 16

Radios

Question 17

What term is used to describe the radio frequency band, cable, or other technology used to connect users?

Answer 17

Media

Question 18

What does AM and FM stand for?

Answer 18

Amplitude Modulation (AM)
Frequency Modulation (FM)

Question 19

What must TDL architecture mission planning include?

Answer 19

A thorough analysis of all IUs and the equipment they possess.

Question 20

What must units in a simplex network receive before the unit can send their message?

Answer 20

The “end-of-transmission message”