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Year 9 – Computing – Networking – Focus on Wi-Fi

Authored by Computer Cab

Computers

9th Grade - University

Used 4+ times

Year 9 – Computing – Networking – Focus on Wi-Fi
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10 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

True or false: Wi-Fi is the same as the Internet?

TRUE

FALSE

2.

MULTIPLE SELECT QUESTION

30 sec • 1 pt

Which of these are parts of a Wi-Fi network?

Access Point

Station

Modem

Web server

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

STA1 is 8 times further away from the AP than STA2. How much weaker is the signal at STA1?

Half as strong

Quarter as strong

8%

64 times weaker

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of these is the Wi-Fi standard?

IEEE 802.3

IEEE 802.11

IEEE 802.15

GSM

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Why can't a Wi-Fi radio transmit and receive at the same time?

To save power

Because the transmitter would deafen the receiver

Because it only has one antenna

To give everyone a fair go

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the first thing a STA does if it has something to transmit?

Wait a fixed amount of time

Wait a random amount of time

Listen to the radio channel

Transmit to ask if it is OK to send some data

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the packet that tells a STA that the data arrived OK?

SIFS

DIFS

ACK

NAK

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