WiFi & HaLow (Quiz2)

How does HaLow address the shortage of Duration/ID field that is required for Network Allocation Vector?

HaLow uses a mechanism called Response Indication Deferral.

HaLow uses the Association ID for determining the length of the frame.

HaLow does not need any such mechanism as the length of the data payload is fixed.

HaLow introduced the Restricted Access Window mechanism for the same.

Which of the following is included in the beacon to notify stations about the buffered frames?

Traffic Notification Map

Traffic Indication Map

Traffic Availability Map

Traffic Intimation Map

Using which one of the following parameters will the modulation and coding scheme be decided?

None of the options are correct.

Data Transmission Rate

Wireless Communication technique

Signal to Noise Ratio

What is the main advantages of HaLow over traditional Wi-Fi technologies?

Better security

Faster speeds

Greater range

Lower power consumption

Which of the frames are transmitted by the Access Point when a node is attempting to join a Basic Service Set using active scanning? (You can select more than one)

Probe Response Frame

Probe Request Frame

Association Response Frame

Association Request Frame

Which of the following frames are transmitted by a node when it is attempting to join a Basic Service Set using passive scanning? (You can select more than one)

Association Response Frame

Association Request Frame

Probe Request Frame

Probe Response Frame

Select the true statements for WiFi

Its frequency ranges from 2.4Ghz to 2.5Ghz

Its frequency ranges from 5Ghz to 5.15Ghz

The 2.4Ghz Band has a 150Mhz bandwidth

The 5Ghz Band has a 150Mhz bandwidth

Which of the following frames use the Null Data Packet (NDP) MAC frame structure in 802.11ah? (You can select more than one)

Which of the following packets help in solving the hidden node problem in 802.11 networks? (You can select more than one answer)

Which of the following power management modes are available for stations in 802.11 networks? (You can choose more than one answer)

Awake Mode

Active Mode

Doze Mode

Power Save Mode

Which of the following are advantages of using Relays in HaLow? (select the correct answers)

When a relay is present, the devices do not require to exchange data with the Root Access point.

Relays require the devices to transmit at a lower data rate thereby consuming low power.

Relays improve reliability of data transmission.

Relays enable the devices to transmit at high data rate.

Select the standards that are typically common across IEEE 802.

Which if the following channel access technique is used in HaLow?

Carrier Sense Multiple Access with Collision Avoidance

Carrier Sense Multiple Access with Collision Prevention

Carrier Sense Multiple Access with Collision Detection

Carrier Sense Multiple Access with Collision Anticipation

What is the typical range of HaLow compared to traditional Wi-Fi?

Same range

Longer range

Unlimited range

Shorter range

Consider the following two statements and select the appropriate option below:

Statement A: Centralized and Distributed Authentication Control are introduced in HaLow to overcome collisions between the devices in the network.

Statement B: HaLow introduced mechanisms to limit the set of devices accessing the channel and to spread their access attempts over a long period of time.

Statements A and B are true.

Statement A is true, but Statement B is false.

Statement B is true, but Statement A is false.

Both Statements are false.

WiFi & HaLow (Quiz2)

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