Tentamen (uitwerkingen)
NCTI - Installer Book Questions with 100% Correct Answers | Updated & Verified
NCTI - Installer Book Questions with 100% Correct Answers | Updated & Verified
[Meer zien]Voorbeeld 2 van de 12 pagina's
Voorbeeld 2 van de 12 pagina's
In winkelwagengesponsord bericht van onze partner
Voorbeeld van de inhoud
NCTI - Installer Book Questions with100% Correct Answers | Updated &
Verified
Which of the following will strengthen signals as they move farther away from the
headend through the trunk express system? - Correct Answer-B) Distribution amplifiers.
Which of the following describes a carrier wave? - Correct Answer-B) A wave with a
much higher frequency than the input signal.
Which of the following describes modulation? - Correct Answer-B) The reshaping of a
carrier wave to include information contained by an input signal.
Which of the following is the symbol for power? - Correct Answer-W = watts
Which of the following describes the process of measuring an analog signal at a specific
interval? - Correct Answer-Sampling
Which of the following is true about the base 10 system? - Correct Answer-B) Digits 0
through 9 are used.
Which of the following best describes post bit-error-rate (BER)? - Correct Answer-A) A
measurement of all bit error after forward error correction has been applied.
Which of the following compression rates will enable six digital programs to be
transmitted rather than one analog channel in a 6 MHz bandwidth? - Correct Answer-
6:1
At what modulation error ratio (MER) should a 256-quadrature amplitude modulation
(QAM) signal operate? - Correct Answer-32db or greater
On the return path, signals from many sources must be sent on the same cable. What is
the name of the technique that allows the signals to be sent without losing data
integrity? - Correct Answer-B) Time division multiple access (TDMA).
In a coaxial cable, what is the purpose of the shielding? - Correct Answer-C) Prevents
ingress and egress.
Which of the following describes attenuation? - Correct Answer-A reduction in signal
strength through a cable system.
, Which of the following is a feature of multimode fiber? - Correct Answer-B) It is easier to
handle and terminate than single-mode fiber.
Which of the following describes the structure of fiber-optic cable? - Correct Answer-B)
Drop fiber cables may use buffer tubes containing steel wire.
Which of the following is true about CAT-1 cabling? - Correct Answer-C) It is typically
used in voice applications.
Which of the following twisted-pair cable types is the only one that is approved by
certifying bodies for data rates in excess of 10 Mbps? - Correct Answer-A) CAT-5.
Which of the following is responsible for reducing crosstalk in twisted-pair cable? -
Correct Answer-A) Number of twists.
Wireless networks use low-power RF signals; therefore, which of the following is true
about signal strength? - Correct Answer-A) The greater the distance between wireless
devices, the lower the signal strength and data rate.
Which of the following is true about Wi-Fi technology? - Correct Answer-D) The
connection between the router and modem is always wired.
What percentage does a cables attenuation increase or decrease for every 10° change
in temperature? - Correct Answer-1%
Which of the following is a characteristic of high-definition television (HDTV)? - Correct
Answer-D) Audio surround sound using Dolby Digital technology.
Which type of screen display has been known to use a great deal of energy, can have a
short lifespan, but has high-contrast, vibrantly accurate color images? - Correct Answer-
plasma
Which TV digital format was originally designed for progressive scan DVDs? - Correct
Answer-EDTV
Which type of television display has a deeper cabinet, which affects the size of the
screen? - Correct Answer-rear projector
Which device enables customers to schedule recordings of television programs? -
Correct Answer-B) Digital video recorder (DVR). dvr
The cable modem termination system (CMTS) is one of the two main components of
DOCSIS architecture. What is the other? - Correct Answer-B) Cable modem.
Voordelen van het kopen van samenvattingen bij Stuvia op een rij:
Verzekerd van kwaliteit door reviews
Stuvia-klanten hebben meer dan 700.000 samenvattingen beoordeeld. Zo weet je zeker dat je de beste documenten koopt!
Snel en makkelijk kopen
Je betaalt supersnel en eenmalig met iDeal, creditcard of Stuvia-tegoed voor de samenvatting. Zonder lidmaatschap.
Focus op de essentie
Samenvattingen worden geschreven voor en door anderen. Daarom zijn de samenvattingen altijd betrouwbaar en actueel. Zo kom je snel tot de kern!
Veelgestelde vragen
Wat krijg ik als ik dit document koop?
Je krijgt een PDF, die direct beschikbaar is na je aankoop. Het gekochte document is altijd, overal en oneindig toegankelijk via je profiel.
Tevredenheidsgarantie: hoe werkt dat?
Onze tevredenheidsgarantie zorgt ervoor dat je altijd een studiedocument vindt dat goed bij je past. Je vult een formulier in en onze klantenservice regelt de rest.
Van wie koop ik deze samenvatting?
Stuvia is een marktplaats, je koop dit document dus niet van ons, maar van verkoper professoraxel. Stuvia faciliteert de betaling aan de verkoper.
Zit ik meteen vast aan een abonnement?
Nee, je koopt alleen deze samenvatting voor €14,82. Je zit daarna nergens aan vast.
Is Stuvia te vertrouwen?
4,6 sterren op Google & Trustpilot (+1000 reviews)
Afgelopen 30 dagen zijn er 67474 samenvattingen verkocht
Opgericht in 2010, al 14 jaar dé plek om samenvattingen te kopen