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Recent questions tagged wireless-lan

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Andrew S. Tanenbaum Edition 5th Exercise 4 Question 25 (Page No. 352)
Suppose that an 11-Mbps 802.11b LAN is transmitting 64-byte frames back-to-back over a radio channel with a bit error rate of 10−7. How many frames per second will be damaged on average?

ajaysoni1924 asked in Computer Networks Mar 15, 2019

by ajaysoni1924

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I did come up with answer but the test said it wrong. Help me here. Wireless Numericals
Quoted Question: One of the large unlicensed bands used for 802.11b WiFi is 2.4GHz. What is the length of these waves? Answer in feet.

Phantom5 asked in Computer Networks Aug 27, 2018

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Stanford(Computer Networks)
Suppose that you have two nodes communicating with an AP that are hidden terminals to one another. The AP, except for acknowledgments, remains silent and there are no other transmitters in the network. The two nodes are both transmitting ... start transmitting at exactly the same time, what is the minimum number of backoffs before a packet is delivered successfully?

vijay_jr asked in Computer Networks Dec 11, 2017

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UGC NET CSE | December 2009 | Part 2 | Question: 50
The unlicensed National Information Infrastructure band operates at the _________ frequency (A) 2.4 GHz (B) 5 GHz (C) 33 MHz (D) 5 MHz

rishu_darkshadow asked in Computer Networks Sep 17, 2017

by rishu_darkshadow

1.4k views

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3 answers

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UGC NET CSE | December 2009 | Part 2 | Question: 48
Which technology is sometime referred to as wireless cable ? (A) MMDS (B) ATM (C) LMDS (D) CDMA

rishu_darkshadow asked in Computer Networks Sep 17, 2017

by rishu_darkshadow

1.7k views

3 votes

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Wireless LAN
A wireless LAN using DSSS with _______-bit chip code needs 320 MHz for sending data that originally required a 20-MHz bandwidth

Neeraj7375 asked in Computer Networks Jul 20, 2017

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Wireless LAN
A wireless LAN using DSSS with a 4-bit chip code needs 10 MHz for sending data that originally required a _______-MHz bandwidth.

Neeraj7375 asked in Computer Networks Jul 20, 2017

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UGC NET CSE | June 2010 | Part 2 | Question: 30
What is the maximum operating rate of a wireless LAN using infrared communication ? $1$ mbps $2$ mbps $5$ mbps $11$ mbps

makhdoom ghaya asked in Computer Networks Sep 15, 2016

by makhdoom ghaya

1.4k views

1 vote

1 answer

9

UGC NET CSE | December 2015 | Part 2 | Question: 21
Which of the following services is not provided by wireless access point in 802.11 WLAN? Association Disassociation Error correction Integration

go_editor asked in Computer Networks Aug 8, 2016

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Recent questions tagged wireless-lan