NCTI Field tech 2-3 Final Latest Update 2025- 2026 Exam 200 Questions with 100% Verified Correct Answers Guaranteed A+
-17-(-34)=？ - CORRECT ANSWER: 17
-49 ÷ -7? - CORRECT ANSWER: 7
(-25) + (42) + (-62) + (20) =? - CORRECT ANSWER: -25
(10 x 103) + (26 x 104) = ? - CORRECT ANSWER: 270 x 10^3
(17) x (-19) =? - CORRECT ANSWER: -323
(20) ÷ (-4) + (-2) x (-10) - (-2) x (7) =? - CORRECT ANSWER: 29
(250 x 10^-6) - (7 x 10^-5) = ? - CORRECT ANSWER: 180 x 10^-6
(480 × 10^-5) divided by (60 x 10^-3) = ? - CORRECT ANSWER: 8 × 10^-2
(75 × 10^3) + (25 x 10^4) =? - CORRECT ANSWER: 32.5 x 10^4
(83 × 10^ 6) + (27 × 10^7) = ? - CORRECT ANSWER: 353 × 10^6
0.00004= —— × 10 to the power of —— ? - CORRECT ANSWER: 4,-4
- / 4
0.00004= ——- × 10 to the power of ——? - CORRECT ANSWER: 4,-5
0.5349 ÷ 0.1420? - CORRECT ANSWER: 3.7669014
3 6/9 + 6 1/3 + 9 5/9= - CORRECT ANSWER: 19 5/9
67.84 + 81.786 + 4281.98 = ? - CORRECT ANSWER: 4,431.606
7 3/8 ÷7 1/4= - CORRECT ANSWER: 1. 1/58
8.13 X 0.123 =? - CORRECT ANSWER: 0.99999
A customer reports a problem of no dial tone (NDT). Upon inspection, the technician notices that new carpeting has been installed. What should the technician do next? - CORRECT ANSWER: Look for a cable that runs under the carpet; it is likely that the cable has a short from the carpeting tack strip.
A transmitter outputs 100 mW. An antenna cable connects the transmitter to an amplifier, and the power into the amplifier's input measures 50 ml. The amplifier increases the signal to the original transmitter's power level and sends the signal to the antenna. The antenna receives the signal from the amplifier at 75 mW, and then transmits at 150 mW. What is the
IR's power level in this F circuit? - CORRECT ANSWER: 75mW
Access points (AP) must support what encryption techniques in order to comply with Institute of Electrical and Electronics 2 / 4
Engineers (IEEE) 802.11i security standards? - CORRECT ANSWER: Temporal Key
Integrity Protocol (TKIP), Advanced Encryption Standard (AES), and AES-CCMP (Counter-Mode/CBC-MAC Protocol).
After a digital TV (DTV) service problem has been analyzed and possible causes considered, what is accomplished by isolating the various network elements? -
CORRECT ANSWER: It narrows the scope of likely problem sources.
After resolving the problem with the premises wiring issue, which of the following is the next step in the six-step process that the technician should take? - CORRECT
ANSWER: Verify that the problem has been resolved and that phone service
is running perfectly on all phones.
All 802.11 standards use one of two frequency bands. What are these frequency
bands? - CORRECT ANSWER: 2.4 GHz and 5 GHz bands.
Although there are many different implementations of spread spectrum technology, what are the only types specified by the Federal Communications Commission (FCC) in the Codes of
Federal Regulation (CFR), Volume 47, Part 15? - CORRECT ANSWER: Direct
Sequencing Spread Spectrum (DSSS) and Frequency Hopping Spread Spectrum (FHSS).
An independent basic service set (IBSS) is also commonly
referred to as which one of the following? - CORRECT ANSWER: ad hoc network
As a general rule, how does an increase in effective isotropic
radiated power (EIRP) relate to the link budget range? - CORRECT ANSWER: Each 6
decibels (dB) increase in EIRP equates to a doubling of range. 3 / 4
As a subscriber enters a hotspot area, what signals their
mobile wireless device of an available Wi-Fi network? - CORRECT ANSWER: The
access point (AP) advertises to the wireless device to enable connection.
Bluetooth is a short range wireless personal area network (PAN) technology that is covered under which Institute of
Electrical and Electronics Engineers (IEEE) standard? - CORRECT ANSWER: IEEE
802.15
Bluetooth uses which spread spectrum technology? - CORRECT ANSWER: Frequency-
hopping spread spectrum (FHSS).
By taking control of the expectations you have, you are - CORRECT ANSWER: More
likely to improve your motivation and be a better problem solver.
Considering antenna diversity, what is the
point of sampling two antennas? - CORRECT ANSWER: To pick the input signal of
whichever antenna has the best reception.
During which step of the six-step troubleshooting process for a digital TV (DTV) service problem are quadrature amplitude
modulation (QAM) channel measurements typically taken? - CORRECT ANSWER:
Diagnosing symptoms.
For maximum security, you should base your wireless local area network (WLAN) user authentication on which one of the
following? - CORRECT ANSWER: Device-independent schemes, such as user names
and passwords.
- / 4