ICMC WEEK 1 EXAM QUESTIONS WITH VERIFIED SOLUTIONS LATEST UPDATE 2026

ICMC WEEK 1 EXAM QUESTIONS WITH VERIFIED SOLUTIONS LATEST UPDATE 2026 Definitions of C4I and IT21 - Answers C4I: command control communications computers and intelligence IT21: Navy wide strategy to improve computing negworking and comms capsbility C4I/IT system categories - Answers Workstation Server Switch Router Crypto device RF Equipment Information Superiority - Answers Capability to collect, process, and disseminate and uninterrupted flow of information while denying an adversary's ability to do the same DoDIN - Answers The globally interconnected, end-to-end set of information capabilities for collecting, processing, storing, disseminating, and managing information on demand to warfighters, policy makers, and support personnel. Objective of DoDIN - Answers Provide the national command authority warfighters, DoD personnel, Intelligence Community, business, policy-markers, and non-DoD users with information superiority, and full-spectrum dominance. IT21 - Information Technology for the 21st Century objectives - Answers Information superiority Network Centric Warfare Quality of Life Current Satellite Connectivity - Answers WGS DSCS EHF CWPS CBSP DISA functions - Answers 1. Operate and defend the DISA Enterprise Infrastructure 2. Provide direct support to USCYBERCOM in executing operations and defense or DoDIN and execution of DCO 3. Ensure DISA C4 and info services capabilities are delivered 4. Coordinated and synchronize geographically dispersed resources 5. Assess,shape, influence and improved readiness fulfill war fighting requirements. 5. Train and prepare NNWC (Naval Network Warfare Command) - Answers Operations and security and navy's portion or the DoDIN and delivers reliable and secure Net-Centic and space war fighting capabilities in support of strategic, operational, and tactical missions across the Navy NMSC - Answers Ensure compliance with international, National and DoD electromagnetic spectrum management policies and regulations. NMSC is uniquely qualified to represent the ES policy Radio frequency Spectrum - Answers HF- 3-30Mhz VHF- 30-300Mhz UHF- 300Mhz-3Ghz SHF - 3Ghz- 30Ghz EHF- 30-300Ghz Sinusoidal Wave properties - Answers 1. Amplitude 2. Cycle 3. Period 4. Wavelength 5. Frequency 6. Velocity 7. Phase Whip Antenna - Answers Telescoping collapsible metal tubing with coil spring. Used for LF, MF, HF, coms. Narrow bandwidth, vertically polarized and omnidirectional. Parabolic Antenna - Answers Dish reflector- concentrates and reflects EM energy to focal point in middle of dish. Narrowband, unidirectional, vertically, of horizontal polarized antenna designed to operate in the UHF band or higher. Simplex - Answers 1 direction only comms AM/FM radio EX: fleet broadcast and GBS Half Duplex - Answers Communication between two devices whereby transmission takes place in only one direction at a time. EX: BTB Full Duplex - Answers 2 directions simultaneously EX: phone EIRP (Effective Isotropic Radiated Power) - Answers Power that theoretical isotropic radiator would have to put out in all directions to equal the actual power transmitted in one direction by a directional antenna Loss of 3db Modulating Wave - Answers Information to be transmitted. The signal is usually converted from its raw form into electromagnetic wave such as voice being converted to em via a microphone Carrier wave - Answers RF wave with constant amplitude phase and frequency. 1 will be will be modified to transmit intel. Modulated Wave - Answers Resultant wave after the modulation process. Contains Intel of the modulating wave but now exists at a frequency capable of being transmitted over long distances AM - Answers The process of carrying the amplitude of the carrier wave in accordance with the amplitude of the modulating wave FM - Answers Carries the frequency of the carrier according to the modulating wave. Amplitude of modulated wave remains constant.