Z3D153 - 2016 Edit Code 3, Volume 1 Part 4
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RF Transmissions Journeyman CDCs. Split up 20 questions at a time.
- 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.
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