Z3D153 - 2016 Edit Code 3, Volume 1 Part 4

20 Questions | Total Attempts: 110

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Z3D153 Quizzes & Trivia

RF Transmissions Journeyman CDCs. Split up 20 questions at a time.


Questions and Answers
  • 1. 
    Which type of cable is the hardest to splice?
    • A. 

      Multimode graded-index fiber.

    • B. 

      Multimode step index fiber.

    • C. 

      Unshielded twisted pair.

    • D. 

      Single mode fiber.

  • 2. 
    A short section of single fiber cable that has a connector at each end is called a
    • A. 

      Pigtail.

    • B. 

      Jumper.

    • C. 

      Patch cord.

    • D. 

      Breakout cables.

  • 3. 
    What allows transportation of all active virtual LANs (VLAN) between switches using a single physical link?
    • A. 

      Trunks.

    • B. 

      Frames.

    • C. 

      Links.

    • D. 

      Ports.

  • 4. 
    Which device has multiport connectivity that directs data between nodes on a network?
    • A. 

      Bridge.

    • B. 

      Router.

    • C. 

      Gateway.

    • D. 

      Repeater.

  • 5. 
    Which routing protocol do Internet backbones use?
    • A. 

      Open shortest path first (OSPF).

    • B. 

      Border gateway protocol (BGP).

    • C. 

      Routing information protocol (RIP).

    • D. 

      Enhanced interior gateway routing protocol (EIGRP).

  • 6. 
    Virtual private networks (VPNs) allow the AF to extend network resources across a/an
    • A. 

      Department of Defense network.

    • B. 

      Air Force network.

    • C. 

      Local area network.

    • D. 

      Public network.

  • 7. 
    Which of the following is not a function that a virtual private network (VPN) concentrator performs?
    • A. 

      Manages data transfer across the tunnel.

    • B. 

      Encrypts and decrypts data.

    • C. 

      Establishes tunnels.

    • D. 

      Encapsulates data.

  • 8. 
    What software do video compression circuits use to determine the amount of change that occurs between frames?
    • A. 

      Pixel.

    • B. 

      Buffer.

    • C. 

      Keyframe.

    • D. 

      Compression and decompression (codec) algorithm.

  • 9. 
    Simple network management protocol (SNMP) is a tool used by network administrators to manage network performance, investigate and solve network problems, and help plan for
    • A. 

      Future growth.

    • B. 

      Network security.

    • C. 

      Remote monitoring.

    • D. 

      Network contingencies.

  • 10. 
    Which of the following is not a basic SNMP command?
    • A. 

      Write.

    • B. 

      Read.

    • C. 

      Trap.

    • D. 

      Get.

  • 11. 
    Which identity management process uses a fingerprint to authenticate a user?
    • A. 

      Token.

    • B. 

      Biometrics.

    • C. 

      Multifactor.

    • D. 

      Knowledge-based.

  • 12. 
    Which threat vector is considered more of an annoyance than an attack?
    • A. 

      Virus.

    • B. 

      Spam.

    • C. 

      Spyware.

    • D. 

      Phishing.

  • 13. 
    Which vulnerability preventive measure is a small piece of code that software developers create to address the flaws found in the original code of a program?
    • A. 

      Patches.

    • B. 

      Antivirus.

    • C. 

      Software removal.

    • D. 

      Vulnerability scanner.

  • 14. 
    What physical security implementation will ensure continuous operation of critical network equipment?
    • A. 

      Data encryption.

    • B. 

      Virtual private network.

    • C. 

      Uninterruptible power supply.

    • D. 

      Network management system.

  • 15. 
    In general, you should deny direct dial-in access to a network device by disabling the
    • A. 

      Console port.

    • B. 

      Auxiliary port.

    • C. 

      Interface ports.

    • D. 

      Virtual terminal ports.

  • 16. 
    When using a multimeter, which option should be used if the display is unreadable due to fluctuations?
    • A. 

      Range.

    • B. 

      Frequency.

    • C. 

      Display hold.

    • D. 

      Minimum/maximum.

  • 17. 
    When using an ohmmeter to take a resistance reading, what preliminary precaution should you take?
    • A. 

      Properly seat the test lead into the current input terminal jack.

    • B. 

      Disconnect the power from the circuit being tested.

    • C. 

      Place the meter in the frequency mode.

    • D. 

      Set the range for maximum reading.

  • 18. 
    Which mode of triggering an oscilloscope causes a trace to be drawn on the screen at all times, whether there is an input signal or not?
    • A. 

      Auto.

    • B. 

      Norm.

    • C. 

      Source.

    • D. 

      External.

  • 19. 
    Which oscilloscope probe is essentially just a shielded piece of wire?
    • A. 

      Current.

    • B. 

      Passive 1:1.

    • C. 

      Passive divider, 1:10.

    • D. 

      Active field effect transistor.

  • 20. 
    What area of a digital storage oscilloscope takes digitized samples and performs numerous manipulations on the data including measuring rise and fall times, periods, time intervals, and performing math computations?
    • A. 

      Microprocessors.

    • B. 

      Acquisition.

    • C. 

      Memory.

    • D. 

      Input.