Quiz Lesson 1 100%
Which organization regulates the use of wireless local area network (WLAN) devices in theUnited States?The Federal Communications Commission (FCC).
Which of the following IEEE 802.11 wireless local area network (WLAN) standards specifiesboth spread spectrum RF and infrared (...
Quiz Lesson 1 100%
Which organization regulates the use of wireless local area network (WLAN) devices in the
United States?
• The Federal Communications Commission (FCC).
Which of the following IEEE 802.11 wireless local area network (WLAN) standards specifies
both spread spectrum RF and infrared (IR) transmission technologies?
• 802.11
Why has it become cost-effective for enterprise companies to integrate wireless local area
network (WLAN) segments into their networks?
• The cost of wireless technology has decreased and the quality has increased.
Which one of the following wireless standards utilizes the 5 gigahertz (GHz) frequency band for
its signal transmissions?
• 802.11n
Why are wireless local area networks (WLAN) usually deployed in an access capacity instead of
as the network’s core layer?
• Wireless LANs 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.
In which Open Systems Interconnection (OSI) reference model layer do wireless local area
networks (LAN) operate?
• The Date Link Layer
What type of connectivity is needed to connect networks between two buildings located across
the street from each other?
• Point-to-Point
In which of the following applications might a wireless local area network (WLAN) be deployed
in a distribution layer role?
• As a building-to-building bridge used to link corporate network segments.
What specific problem does a wireless local area network (WLAN) resolve for corporations and
home users?
• Excessive data cabling.
What challenges do Wireless Internet Service Providers (WISP) have to overcome in order to
provide “last mile data delivery” to customers?
, • Distance to access points (AP), rooftop access, lightning, trees, mountains,
tower access, and other physical obstacles to connectivity
Quiz 2 90%
In what manner do radio waves propagate (move) away from the source (antenna)?
• In a straight line in all directions at once.
Which one of the following radio frequency (RF) behaviors is defined as “the bending of a wave
as it passes through a medium of different density"?
• Refraction
Which of the voltage standing wave ratios (VSWR) shown below is best for transferring radio
frequency (RF) energy between connections?
• 1.2:1.
What are some measures that can be taken to prevent high voltage standing wave ratios (VSWR)
in transmitters and receivers?
• Tighten connections between cables and connectors and use impedance-
matched hardware throughout.
How does radio frequency line-of-sight (RF LOS) differ from visual LOS?
• RF LOS is accompanied by a Fresnel Zone, a series of concentric ellipsoid-
shaped areas around the visual LOS path.
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.
What is Equivalent Isotropically Radiated Power (EIRP)?
• The power actually radiated by the antenna element.
What unit of measurement is used to express the gain of an antenna?
• Decibels isotropic (dBi)
Given an access point (AP) with 100 milliwatts (mW) of output power connected through a
cable with 3 decibels (dB) of loss to the antenna with a 10 decibels isotropic (dBi) gain, what is
the approximate Equivalent Isotropically Radiated Power (EIRP) level from the antenna in
milliwatts (mW)?
• 100mW
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 or Stuvia-credit 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 FLOYYD. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $12.99. You're not tied to anything after your purchase.
