Networking - Unit 6 Wireless Networking 2023-24

Which of the following 802.11 wireless standards has a theoretical throughput of 11 Mbps?

• 802.11b

• 802.11a

• 802.11n

• 802.11ax

A client has complained to you about connections being dropped on a regular basis in his office. To fix the issue, you plan on checking the RSSI (received signal strength indicator) level to ensure that the minimum signal strength for basic connectivity is maintained. Which RSSI level will you check to get an indication that the minimum signal strength for basic connectivity is maintained?

• -50 dBm

• -30 dBm

• -70 dBm

• -80 dBm

Moses has just been hired as a service manager for Dalton Associates. Which of the following statements misrepresents information that might be essential for Moses to be familiar with?

• The geographical area that an antenna or wireless system can reach is known as its range.

• A more negative RSSI value indicates a higher quality of signal.

• Directional antennas transmit wireless signals along a single direction.

• TV and radio stations use omnidirectional antennas.

Which of the following 802.11 wireless standards operates in the 6-GHz frequency band?

• 802.11b

• 802.11a

• 802.11ac

• 802.11ax

Which wireless technology is used to track fitness activity levels and geographic movement?

• Bluetooth

• ANT+

• NFC

• Infrared

Name the phenomenon where a wireless signal is split into secondary waves, when it encounters an obstruction?

• Reflection

• Diffraction

• Refraction

• Scattering

Warner is employed as a network engineer and part of his job requires him to measure the RSSI (received signal strength indicator) on the receiver's end. Warner is required to measure the RSSI and fill out a form indicating whether the signal is acceptable or not. During one such visit, the client's device's RSSI level reads -80 dBM. Analyze what Warner should report in such a scenario.

• Mark the rating as excellent

• Mark the rating as good

• Mark the rating as acceptable

• Mark the rating as not good

What is the frequency range for Bluetooth communication?

• 300 GHz-300,000 GHz

• 1850 MHz-1990 MHz

• 5.1 GHz-5.8 GHz

• 2.4 GHz-2.4835 GHz

DMPL is an MNC that wants to establish a one-stop shopping point for consumers. DMPL has contracted you to develop a single card that can be used for loyalty and membership programs as well as for cashless payments. The management at DMPL has specified that the card should not include a power source and should be able to transfer data wirelessly over short distances up to 10 cm. Which of the following technologies will you use?

• RFID

• ANT+

• ZigBee

• NFC

Wildfilms Ltd., who is your client, has raised a ticket complaining of loss in signal strength since the new upgrade. Earlier, the connection was established using wired transmission, which has now been upgraded to a wireless connection. Which of the following will you use to amplify the power of the transmission in this scenario so that the issue can be resolved?

• Wireless range extender

• Signal propagation

• FHSS

• RSSI