NCTI WIFI QUESTIONS AND ANSWERS 2023
Notes
Single input, single output (SISO) - Most systems have one radio and one antenna, and some systems have one radio and two antennas.
Multiple input, multiple output (MIMO) - These systems use multiple radio chains in a single wireless chipset.
Multi-use...
NCTI WIFI QUESTIONS AND ANSWERS
2023
Notes
Single input, single output (SISO) - Most systems have one radio and one antenna, and
some systems have one radio and two antennas.
Multiple input, multiple output (MIMO) - These systems use multiple radio chains in a
single wireless chipset.
Multi-user MIMO (MU-MIMO) - These systems use each radio chain on an access point
to transmit to a unique client.Correct answer:
Wired Equivalent Protection (WEP) - This type of security setup should never be used
for a wireless network as it can be quickly be broken.
WPA/WPa2 -Personal - This type of security uses an 8-63 character passphrase that all
network users share.
WPA/WPA2-Enterprise - In this type of security setup, everyone has a unique username
and password, which allows IT departments to track individual users and reset unique
user passwords without having to change the passphrase for the entire network.
Wi-Fi Protected Setup (WPS) - This type of security setup allows new devices to be
added to a network with a button press or an 8-digit PIN number.
test one
Question #1: Multiple Choice - choose 1 answer
Which modulation scheme works by varying the height, or loudness, of a wave to
convey information?
B) Amplitude modulation (AM).
Question #2: Multiple Choice - choose 1 answer
Which modulation scheme works by adjusting the length of a wave to convey
information?
B) Frequency modulation (FM).
Question #3: Multiple Choice - choose 1 answer
Which IEEE standard specifies media access and Physical Layer specifications for
wireless connectivity between fixed, portable, and moving stations within a local area?
C) 802.11.
Question #4: Multiple Choice - choose 1 answer
, Which IEEE 802.11 amendment is a 5 GHz-only standard that can theoretically reach 7
Gbps?
A) 802.11ac.
Question #5: Multiple Choice - choose 1 answer
Which of the following is an example of a wide area network (WAN)?
B) The Internet.
Question #6: Multiple Choice - choose 1 answer
Which of the following handles the long distance wide area network (WAN)
communication link with the Internet service provider or managed services operator?
C) Modem.
Question #7: Multiple Choice - choose 1 answer
What connects wireless client devices, such as laptops, phones, tablets, and media
players to the wired network?
C) Access point.
Question #8: Multiple Choice - choose 1 answer
Which type of directional antenna is usually called a "high-density" directional antenna?
B) Semi-directional antenna.
Question #9: Multiple Choice - choose 1 answer
What type of system uses one radio chain to transmit and receive data?
A) Single input, single output (SISO).
Question #10: Multiple Choice - choose 1 answer
Which security setup allows new devices to be added to a network with a button press
or an 8-digit PIN?
D) Wi-Fi Protected Setup (WPS).
9-15-1 Understanding Wi-Fi
Question #1: Multiple Choice - choose 1 answer
Which security standard is considered the best form of security because it is the most
secure and does not limit network data rates?
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller Dreamer252. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for £15.97. You're not tied to anything after your purchase.
