General Information Flashcards
7 cards from real CWNA practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 7 General Information flashcards as text
Which IEEE 802.11 amendment introduced the concept of spatial multiplexing using multiple antennas?
Answer: 802.11n
802.11n introduced MIMO (Multiple Input Multiple Output), enabling spatial multiplexing via multiple antennas for higher throughput.
What is the maximum EIRP allowed for point-to-point outdoor 5 GHz links under FCC regulations in the US?
Answer: 53 dBm
The FCC allows up to 53 dBm EIRP for point-to-point outdoor links in the 5 GHz UNII bands when directional antennas are used.
Which CWNA body of knowledge domain covers the analysis of RF propagation, loss, and gain calculations?
Answer: RF Technologies and Antenna Concepts
RF Technologies and Antenna Concepts covers propagation, free-space path loss, reflection, diffraction, and link budget calculations.
What organization administers the CWNA certification?
Answer: CWNP
The Certified Wireless Network Professional (CWNP) organization administers the CWNA and all other CW-series certifications.
In the context of 802.11 networks, what does the term 'BSS' stand for?
Answer: Basic Service Set
BSS stands for Basic Service Set, the fundamental building block of an 802.11 WLAN consisting of one AP and its associated clients.
Which 5 GHz UNII sub-band requires Dynamic Frequency Selection (DFS) and Transmit Power Control (TPC)?
Answer: UNII-2 (5.25–5.35 GHz)
UNII-2 (and UNII-2 Extended) channels require DFS and TPC because they overlap with radar frequencies used by military and weather systems.
What is the primary purpose of the Distributed Coordination Function (DCF) in 802.11 WLANs?
Answer: To provide contention-based medium access control
DCF uses CSMA/CA to provide contention-based, distributed medium access so stations share the wireless channel fairly.
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