Test: Field Tech II - III Conventional
Questions and Answers 100% Pass
Which of these components is used in a passive optical network (PON)? ✔✔Optical splitters.
Which should be used to cut the fiberdrop's buffer tube
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Test: Field Tech II - III Conventional
Questions and Answers 100% Pass
Which of these components is used in a passive optical network (PON)? ✔✔Optical splitters.
Which should be used to cut the fiberdrop's buffer tube? ✔✔A tube cutter
What is one reason why broadband cable operators install fiber-optic cable in stages instead of
changing the infrastructure all at once? ✔✔Changing the infrastructure all at once would cause
too many service disruptions.
When a pre-connectorized fiber is not attached to equipment, what should be attached to help
keep it clean? ✔✔A dust cap
Simplify and solve the equation: If E = IR then I = ? ✔✔E/R
(480 x 10 to the power of -5) divided by (60 x 10 to the power of -3) = ✔✔8 x 10 to the power of
-2
7 3/8 divided by 7 1/4 = ✔✔1 1/58
(20) / (-4) + (-2) x (-10) - (-2) x (7) = ✔✔29
What should you avoid to prevent stress? ✔✔Excessive caffeine
It is essential to pay attention to warning signs of stress overload. Poor attitude is one of the
behaviors that may indicate that you are overstressed. What are the symptoms of poor attitude
behavior? ✔✔A significant change in attitude with a noticeable movement toward negative,
hostile, cynical, or paranoid thoughts
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?
✔✔Diagnosing symptoms.
When troubleshooting a digital TV (DTV) authorization issue, what can be verified using the settop box (STB) diagnostic page? ✔✔STB reception of authorization message data.
Which of the following is a multicast control protocol between the cable modem and the CMTS
that works in harmony with the downstream channel bonding for efficient and extensible support
for multicast applications? ✔✔Source-specific multicast (SSM)
Which step in the troubleshooting process requires a discussion with the customer to gather more
detail about the problem? ✔✔Step 1: Identify the problem.
Which of the following wire color combinations make up quad station wire? ✔✔Green, red,
black, yellow
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? ✔✔Look for a cable that
runs under the carpet; it is likely that the cable has a short from the carpeting tack strip.
What uses the 2.4-GHz band and runs at 54 Mbps? ✔✔802.11g
What is the last step of the basic wireless access point (WAP) setup? ✔✔Apply security.
Why are wireless local area networks (WLAN) usually deployed in an access capacity instead of
as the network's core layer? ✔✔WLANs are generally incapable of meeting the requirements of
the network core layer, which needs to be very fast and stable, able to handle a tremendous
amount of traffic with little difficulty, and must experience no down time.
Wireless internet service providers (ISP) provide which of one of the following services?
✔✔Last mile data delivery
What is a symptom of a high voltage standing wave radio (VSWR) in a radio transmitter?
✔✔high voltage standing wave radio
How does an antenna create gain in the received signal? ✔✔The antenna's shape focuses the
received signal into a tighter beam
A transmitter outputs 100 milliwatts (mW). An antenna cable connects the transmitter to an
amplifier, and the power into the amplifier's input measures 50 mW. 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
intentional radiator's (IR) power level in this radio frequency (RF) circuit? ✔✔75 mW
Which of the following is an advantage of 802.11b direct sequence spread spectrum (DSSS) over
802.11 frequency hopping spread spectrum (FHSS)? ✔✔**Data throughput
What is the width of direct sequence spread spectrum (DSSS) channels and how far apart are
their center frequencies spaced? ✔✔22 megahertz (MHz) and 5 MHz.
What statement best describes frequency-hopping spread spectrum's (FHSS) use of frequency
agility? ✔✔It refers to a radio's ability to change transmission frequency abruptly within the
usable RF frequency band.
When a wireless bridge is configured in repeater mode, the range of the wireless segment can be
extended at the expense of which of the following? ✔✔Throughput
What value does the profile configuration utility in a wireless client device provide the user?
✔✔The user can configure profiles for each wireless network during the initial configuration of
the client device instead of manually reconfiguring all of a wireless client's settings each time the
user changes networks
What is a half-duplex device that is only capable of Open Systems Interconnection (OSI)
reference model Layer 2 connectivity? ✔✔A wireless bridge.
As a general rule, how does an increase in effective isotropic radiated power (EIRP) relate to the
link budget range? ✔✔Each 6 decibels (dB) increase in EIRP equates to a doubling of range.
What specification requirements should you consider when selecting an amplifier for a wireless
local area network (LAN)? ✔✔
Which term describes the RF loss incurred when an item or component is introduced into an RF
circuit? ✔✔Insertion loss
Which of the Institute of Electronics Engineers (IEEE) wireless LAN standards listed below is
the only one that includes infrared technology? ✔✔802.11
Operation as an IEEE 802.11ac device occurs only in the 5 gigahertz (GHz) Unlicensed National
Information Infrastructure (U-NII) radio band, so how are 802.11ac devices able to maintain
compatibility with earlier standards that operate in the 2.4 GHz Industrial, Scientific, and
Medical (ISM) radio bands? ✔✔IEEE 802.11ac devices also operate in the 2.4 GHz ISM range.
What are some Federal Communications Commission (FCC) regulations within which wireless
local area networks (LAN) and devices must operate ✔✔
What three levels of security does virtual private network (VPN) technology provide in a
wireless local area network (LAN)? ✔✔User authentication, data encryption, and data
authentication
Which term describes the operation mode of a basic service set (BSS)? ✔✔Infrastructure mode.
What must a wireless local area network (LAN) comprised of multiple cells have in order for
connected clients to roam seamlessly between cells? ✔✔
What is a slot time in an IEEE 802.11 wireless local area network (WLAN)? ✔✔A standard
period of time on a WLAN that each station multiplies by a random number to determine the
length of time to wait before performing a clear channel assessment (CCA).
Why is the Carrier Sence Multiple Access/Collision Avoidance (CSMA/CA) protocol used to
prevent collisions in a wireless local area network (LAN)? ✔✔It is impossible to detect
collisions on a wireless LAN
What does the "on with threshold" setting of the Request to Send/Clear to Send (RTS/CTS)
protocol allow the wireless local area network (WLAN) administrator to control? ✔✔To control
which frames over a certain size are announced and cleared to send by the stations.
Which one of the following tasks is the best choice for troubleshooting the near/far problem?
✔✔Review the location of the stations (clients) on the network.
When using three co-located access points (AP) in an 802.11b wireless local area network
(LAN), what factor prevents approximately 5 Mbps data throughput at each co-located AP from
being attained? ✔✔
Antenna diversity is a solution to which one of the following wireless local area network (LAN)
problems? ✔✔**Multipath
What wireless local area network (LAN) encryption standard replaced the RC4 stream cipher
and is considered "uncrackable"? ✔✔The Advanced Encryption Standard (AES).
What level of encryption is created by a Wired Equivalent Privacy (WEP) key that uses a 40-bit
secret key concatenated with the initialization vector to form the WEP key? ✔✔64 bit.
What type of wireless local area network (WLAN) attack could cost an employee their job
because network usage logs point directly to the employee whenever a hacker gains access to the
employee's domain login information and causes havoc on the network? ✔✔A passive attack.
What should you note in the wireless local area network (WLAN) site survey if a semidirectional
antenna is required for adequate coverage? ✔✔The antenna orientation along with the antenna's
side and back lobes for coverage and security reasons.
What are some requirements of a wireless local area network (WLAN) in a hospital that make it
an effective training ground for individuals who want to immerse themselves in WLAN
technology? ✔✔Roaming across large distances, a limited number of users on an access point
(AP) due to mandated security, and medical applications that are often connection-oriented
between the client and server.
What information is vital in order to conduct a successful and thorough site survey for a wireless
local area network (LAN)? ✔✔
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