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PROGRESSION FIELD TECH II - III CONVENTIONAL QUESTIONS WITH VERIFIED ANSWERS ALREADY GRADED A+
PROGRESSION FIELD TECH II - III CONVENTIONAL QUESTIONS WITH VERIFIED ANSWERS ALREADY GRADED A+
[Meer zien]Voorbeeld 4 van de 192 pagina's
Voorbeeld 4 van de 192 pagina's
In winkelwagengesponsord bericht van onze partner
Voorbeeld van de inhoud
Name: Score:190 Multiple choice questions
Term 1 of 190
(250 x 10 to the power of -6) - (7 x 10 to the power of -5) =
180 x 10 to the power of -6
Optical distribution network (ODN).
Optical splitters.
You observe and take notes relevant to the issue.
Term 2 of 190
Why is the Fresnel Zone important to the integrity of the radio frequency (RF) link or path?
The Fresnel Zone defines an area around the RF line-of-sight (RF LOS) that can introduce
RF signal interference if blocked.
The access point (AP) transmits the challenge text in the clear and receives the same
challenge text encrypted with the wired equivalent privacy (WEP) key.
They are used to defer a station's access to the medium and provide various levels of
priority.
An FTTC is allowed a smaller number of RF amplifiers between the optical fiber and the
customer premises.
Term 3 of 190
What must a technician be aware of when analyzing a digital TV (DTV) problem?
There is frequently more than one contributor to a specific DTV service problem.
When a client (or node) can receive signals from an access point (AP), but an obstacle
prevents the client from receiving signals from the other clients that are connected to
the network.
The cost of wireless technology has decreased and the quality has increased.
Turn on the request to send/clear to send (RTS/CTS) protocol and watch for increased
network data throughput.
,Term 4 of 190
Why have 900 megahertz (MHz) Industrial, Scientific, and Medical (ISM) band wireless local
area networks (WLAN) lost favor in comparison to 2.4 gigahertz (GHz) and 5 GHz frequency
systems?
The option to increase the top frequency of the upstream to 85 MHz.
The data could be needed in the future.
900 MHz devices are more expensive and provide slower data throughput.
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.
Term 5 of 190
Access points (AP) must support what encryption techniques in order to comply with IEEE
802.11i security standards?
The access point (AP) transmits the challenge text in the clear and receives the same
challenge text encrypted with the wired equivalent privacy (WEP) key.
Temporal Key Integrity Protocol (TKIP), Advanced Encryption Standard (AES), and AES-
CCMP (Counter-Mode/CBC-MAC Protocol).
An open circuit caused by a break in a conductor, poor contact in a modular connector,
or an incorrect wire connection.
They are used to defer a station's access to the medium and provide various levels of
priority.
,Term 6 of 190
What is the purpose of the IEEE 802.11 wireless local area network (WLAN) superframe?
To allow fair coexistence between point coordination function (PCF)-mode and
distributed coordination function (DCF)-mode clients on the network.
It allows all clients on a WLAN to contend for access on the shared radio frequency (RF)
transmission medium using the carrier sense multiple access with collision avoidance
(CSMA/CA) protocol.
To IEEE 802.11 networks operating in the 2.4 Industrial, Scientific, and Medical (ISM) radio
bands, Bluetooth transmissions appear as all-band noise.
Shorter packet fragments have lower probability of errors from interference than longer
packet fragments, but shorter packet fragments require more error correction.
Term 7 of 190
Which encryption method is the most secure for a wireless network?
Aes.
802.1x.
802.11x.
WPA2.
Term 8 of 190
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?
The placement of pair numbers 3 and 4.
Distance to access points (AP), rooftop access, lightning, trees, mountains, tower access,
and other physical obstacles to connectivity.
A significant change in attitude with a noticeable movement toward negative, hostile,
cynical, or paranoid thoughts
The telephone wiring polarity is incorrect, and the customer has a mix of older and newer
DTMF touch-tone telephones.
, Term 9 of 190
-49/-7 =
AES.
7
0.99999
-25
Term 10 of 190
(20) / (-4) + (-2) x (-10) - (-2) x (7) =
11
29
AES.
Test for degraded data throughput at all client locations.
Term 11 of 190
What technologies does the IEEE 802.11n wireless standard use to achieve data rates as high as
600 megabits per second (Mbps)?
Multiple input, multiple output (MIMO) technology and spatial multiplexing.
Point-to-point (P2P).
The antenna orientation along with the antenna's side and back lobes for coverage and
security reasons.
STB reception of authorization message data.
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