Z3D153 - 2016 Edit Code 3, Volume 2 Part 5
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- 1.Which type of advanced waveform enables data and imagery situational awareness and provides enhanced combat effectiveness?
- A.
Soldier radio.
- B.
Wideband networking.
- C.
Mobile user objective system (MUOS).
- D.
Adaptive network wideband waveform (ANW2).
- 2.In high-frequency (HF) communications, your station’s automatic link establishment (ALE) self-address is the address
- A.
The user programmed for his or her station.
- B.
It shares with other members.
- C.
Of an unprogrammed station.
- D.
Of other stations in the net.
- 3.This is the simplest form of an automatic link establishment (ALE) call.
- A.
All.
- B.
Any.
- C.
Group.
- D.
Individual.
- 4.Which automatic link establishment (ALE) call option lets you call a predefined group of stations with a single shared address, and requires them to respond, one at a time, in a predefined order?
- A.
Handshake.
- B.
Channel.
- C.
Group.
- D.
Net.
- 5.Where is the primary high frequency global communications system (HFGCS) network control station located?
- A.
Offutt, Nebraska.
- B.
Grand Forks, North Dakota.
- C.
Andrews AFB, Maryland.
- D.
Croughton, England.
- 6.This is not a major network within the Military Auxiliary Radio Service (MARS).
- A.
Mission support network (MSN).
- B.
Phone patch network (PPN).
- C.
Very high frequency (VHF) network.
- D.
Ultra-high frequency (UHF) network.
- 7.The process of unscrambling encrypted information so that it is intelligible is known as
- A.
Decryption.
- B.
Encryption.
- C.
Cryptography.
- D.
Cryptanalysis.
- 8.Which type of cryptographic algorithm permits the encryption key to be public?
- A.
Asymmetric.
- B.
Symmetric.
- C.
Encoder.
- D.
Secret.
- 9.Which secure communications device operates by simply sliding the key tape into the reader?
- A.
KYK–13.
- B.
KOI–18.
- C.
KY–57.
- D.
KY–99A.
- 10.The common name for the method of changing encryption keys over the radio channel in a two-way radio system is called
- A.
Over-the-air rekeying (OTAR).
- B.
Asymmetric.
- C.
Symmetric.
- D.
Off-line.
- 11.Which type of conventional land mobile radio (LMR) device maximizes the communications distance between lower-powered equipment items?
- A.
Mobile.
- B.
Portable.
- C.
Repeater.
- D.
Base station.
- 12.In a land mobile radio (LMR) repeater system, a device that separates and isolates the incoming receive signal from the outgoing transmit signal and vice versa is known as a
- A.
Duplexer.
- B.
Comparator.
- C.
Key-unkey relay.
- D.
Transmit-receive switch.
- 13.Which type of site configuration was designed to provide coverage for a small geographical area?
- A.
Single-site.
- B.
Multi-site.
- C.
Simulcast.
- D.
Multicast.
- 14.This provides the interface between dispatch consoles and the central controller in a typical trunking system.
- A.
Modems.
- B.
Access control.
- C.
Switching equipment.
- D.
System management computer.
- 15.When setting up a trunking network, users with common missions or functions are assigned as
- A.
Nets.
- B.
Channels.
- C.
Talkgroups.
- D.
Subscribers.
- 16.Which statement is not a benefit of having a trunking network?
- A.
Selective radio inhibit.
- B.
Faster system access.
- C.
Unbalanced channel loads.
- D.
Better channel efficiency.
- 17.This differentiates the enterprise land mobile radio (ELMR) network from a regular trunking or conventional network.
- A.
Advanced encryption standard (AES) encryption.
- B.
Association of Public-Safety Communications Officials (APCO) P25 standard.
- C.
Repeater.
- D.
Centralized core controller.
- 18.Which Air Force instruction (AFI) requires communications squadrons to maintain installation notification and warning systems (INWS)?
- A.
AFI 10–2501, Air Force Emergency Management Program.
- B.
AFI 10–2801, Force Development Concepts.
- C.
AFI 33–115, Air Force Information Technology Service Management.
- D.
AFI 33–217, Voice Call Sign Program.
- 19.In the giant-voice system, this controls the system’s signal routing and power distribution.
- A.
Landline board.
- B.
Control board.
- C.
Radio board.
- D.
Encoder.
- 20.Which is not a major component of the giant-voice system?
- A.
Siren cabinet.
- B.
Siren stack.
- C.
Decoder.
- D.
Encoder.
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