Practice Test Geeks(FMF) Fleet Marine Force Practice Test
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Combat Communications Flashcards

7 cards from real FMF practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.

Read the first 7 Combat Communications flashcards as text

  1. What is the primary purpose of a Communications-Electronics Operating Instructions (CEOI) document?

    Answer: To document call signs, frequencies, authentication codes, and net procedures for a given period

    A CEOI (also called a SOI — Signal Operating Instructions) is a classified document containing the call signs, frequencies, authentication tables, and procedures a unit uses for a specified period.

  2. In the Marine Corps, what does 'CAS' stand for in the context of air-ground communications?

    Answer: Close Air Support

    Close Air Support (CAS) refers to air action against hostile targets near friendly forces, requiring precise communication between ground units and aircraft.

  3. When transmitting a message, what does the proword 'SAY AGAIN' mean?

    Answer: Repeat the entire transmission from the beginning

    'SAY AGAIN' instructs the sender to repeat all or a specified part of their last transmission; 'REPEAT' is reserved for artillery fire commands.

  4. What is 'MSAT' used for in Marine Corps communications?

    Answer: Mobile Satellite communications providing beyond-line-of-sight voice and data connectivity

    MSAT (Mobile Satellite) systems enable beyond-line-of-sight (BLOS) communication by routing transmissions through satellites, critical when terrestrial links are unavailable.

  5. Which of the following correctly describes 'dead space' in radio communications?

    Answer: An area where terrain features prevent satisfactory radio communications

    Dead space is an area within the radio range where, due to terrain masking or atmospheric conditions, a satisfactory radio signal cannot be received.

  6. What is the correct proword to use when you have finished transmitting and expect a reply?

    Answer: OVER

    'OVER' signals that the transmission is complete and a reply is expected, whereas 'OUT' closes the communication entirely.

  7. In combat communications, what does the acronym 'MSE' refer to?

    Answer: Mobile Subscriber Equipment, a mobile digital communications system

    MSE (Mobile Subscriber Equipment) is a mobile, area communications system providing secure voice, data, and facsimile services in a tactical environment.