Self Assessment Test CWNA

At which layers of the OSI model does 802.11 technology operate?

• Data-Link

• Network

• Physical

• Presentation

• Transport

What is IEEE 802.3 standard for?

• Logical Link Control (LLC)

• CSMA/CD (Standard Ehernet Coaxial or UTP)

• LAN/MAN Security (VPN)

• LAN nirkabel (Wi-Fi)

What is IEEE 802.11 standard for?

• Logical Link Control (LLC)

• CSMA/CD (Standard Ehernet Coaxial or UTP)

• LAN/MAN Security (VPN)

• LAN nirkabel (Wi-Fi)

Which IEEE 802.11 amendment specifies the use of up to eight spatial streams of

modulated data bits?

• IEEE 802.11n

• IEEE 802.11g

• IEEE 802.11ac

• IEEE 802.11s

• IEEE 802.11w

5 GHz frequency following the standards of UNII (Unlicensed National Information Infrastructure). frequency division multiplexing (FDM) standard. Able to transfer data up to 54 Mbps

• 802.11a

• 802.11b

• 802.11g

• 802.11b/g/n

• 802.11ac

Offers maximum throughput of 11 Mbps (6 Mbps in practice) and range of up to 300 meters in open environments. It uses a frequency range of 2.4 GHz, with 3 radio channels available. Data transmission 5.4 to 11 Mbps

• 802.11a

• 802.11b

• 802.11g

• 802.11b/g/n

• 802.11ac

offers bandwidth with a maximum capacity speed of 1000 Mbps or 1 Gbps and the maximum speed per user (such as laptops and other client devices) is 500 Mbps, which is achieved by developing a wide bandwidth, which is 160 Mhz, coupled with MIMO support and of course with a high modulation density

• 802.11a

• 802.11b

• 802.11g

• 802.11b/g/n

• 802.11ac

Which of these frequencies has the longest wavelength?

• 750 KHz

• 2,4 GHz

• 252 GHz

• 2,4 MHz

Which of these terms can best be used to compare the relationship between two radio

waves that share the same frequency?

• Multipath

• Multiplexing

• Phase

• Spread spectrum

Which is not RF characteristic

• Wavelength

• Gain

• Phase

• Free space path loss

• Loss (Attenuation)