Wifi question and answer

200+ TOP WiFi Online Quiz Questions – Exam Test Online Test

WiFi Online Test and Answers Pdf Download :-

These are very useful & Most Asked Questions in your certification Exam. Read all Online Mock Test Exam Question Bank for Beginners Freshers & Experienced.
1. Wireless networking, or Wi-Fi, can be used to connect computers in a home, and many cities are using the technology to offer free or low-cost Internet access to residents. What’s another name for Wi-Fi?
A. 801.12 networking
B. 801.22 networking
C. 802.11 networking

2. A wireless network uses ___ waves to transmit signals.
A. mechanical
B. radio
C. sound

3. What device sends and receives radio signals in a wireless network?
A. modem
B. digital translator
C. router

4. At what frequencies do Wi-Fi radios make transmissions?
A. 3 GHz or 8 GHz
B. 2.4 GHz or 5 GHz
C. 2 GHz or 7.3 GHz

5. ______ Of the following networking standards, which is not used in Wi-Fi data transmissions?
A. 802.11g
B. 802.11q
C. 802.11b

6. Which networking standard is the slowest and least expensive?
A. 802.11a
B. 802.11b
C. 802.11n

7. Which networking standard was the first to use orthogonal frequency-division multiplexing (OFDM) as a coding technique?
A. 802.11g
B. 802.11a
C. 802.11n

8. Which short-range wireless standard is used for Wireless Personal Area Networks (WPANs)?
A. 802.16
B. 802.15
C. 802.13

9. You can change the settings on your wireless router through a Web interface. One option you can change is channel. What channel do routers use by default?
A. 2
B. 7
C. 6

10. Which Operates in the 2.4-GHz Industrial, Scientific and Measurement (ISM) band (2.4 GHz to 2.4835 GHz) and provides signaling rates of up to 11Mbit/sec.
A. 802.11a
B. 802.11b
C. 802.11e
D. 802.11g

11. Which is Expected to be ratified sometime in 2005, this Radio Resource Management standard will provide measurement information for access points and switches to make WLANs run more efficiently.
A. 802.11a
B. 802.11b
C. 802.11e
D. 802.11k

12. Which is Expected to be ratified in mid-2005, this quality-of-service specification is designed to guarantee the quality of voice and video traffic.
A. 802.11a
B. 802.11b
C. 802.11e
D. 802.11g

13. Which Wi-Fi security is impossible to crack?
A. WEP
B. WPA
C. MAC Filtering
D. None of the above

14. What should you do to keep unauthorized users from changing your home router settings?
A. Change the firewall settings on your computer
B. Change the default administrator password and SSID
C. Change the MAC address of the router
D. Nothing, only the administrator can change router settings

15. What are the two components necessary to have a wireless network?
A. A laptop and the internet
B. An access point and a WNIC
C. A router and an internet connection
D. A dual layer DVD reader and a LAN

WiFi Objective type Questions with Answers

16. What channel is the default for commercially sold routers?
A. Channel 5
B. Channel 6
C. Channel 7
D. Channel 2

17. Which of the following is a sign that you might be on an unsafe network?
A. The connection requires you to sign up for an account
B. There is no password needed to access the internet
C. You get free access with every fifth frappe
D. None of the above

18. Why is WEP security not as strong as WPA or WPA2 even though the code key is longer?
A. WPA uses tunneling protocols
B. WEP sends authentication codes with each packet
C. WEP lacks the ability to use special characters
D. WEP is not compatible with Windows 7 or Mac OS

19. Which wireless protocol uses TKIP?
A. WEP
B. WPA
C. WPA2
D. WPS

20. What is an Evil Twin Attack?
A. An attack that mimics your MAC address to enter your network
B. An attack that denies service to your router
C. An attack that creates a mock website to trick a user into divulging secure information
D. An attack that copies all of the files from your router to a secondary hard drive on a hacker computer and then harvest information continuously on your browsing activity

21. wifi stands for_________
A. Wireless Fidelity
B. Wireless functioning
C. Wireless function
D. None of the above

22. A Wi-fi enabled device can be_____
A. PC
B. Game Console
C. Mobile phone
D. All of the above

23. Wifi uses which kind of multiplexing?
A. OFDM
B. TDM
C. WDM
D. FDM

24. Wifi Alliance for certified products based on the
A. IEEE 802.3
B. IEEE 802.5
C. IEEE 802.11

25. Does wifi support roaming?
A. Yes
B. No

26. What is the “acceptable” limit for the attenuation of a wifi signal (threshold before breaking signal)

A. 75 dB
B. 20 db
C. -75 DB
D. – 75 GHz
E. – 20 dB

27. What are the different wireless controllers Motorola

A. RFS1000
B. RFS4000 (Missed)
C. RFS6000 (Missed)
D. RFS7000 (Missed)
E. RFS8000

28. How many channels has 2.4 GHz frequency?

29. To offer IPAD, it is mandatory to go through access Quickspot
A. Real
B. False

30. The signal / noise ratio or SNR:

A. It is a calculation that determines who makes the most noise in the Office 4001
B. This is what means the quality of the transmission of information in relation to parasites
C. This is a signal that sends noise in a building

WiFi Questions and Answers pdf Download

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Wireless and Network Interview Questions and Answers

Wi-Fi is a technology that uses radio waves to provide network connectivity. A wi-fi connection is established using a wireless adapter to create hotspots — areas in the vicinity of a wireless router that are connected to the network and allow users to access internet services. Once configured, wifi provides wireless connectivity to your devices by emitting frequencies between 2.4 GHz — 5 GHz, based on the amount of data on the network.

A hotspot is a physical location where people may obtain internet access, typically using wi-fi technology, via a wireless local area network (Wlan) using a router connected to an internet service provider.

Independent Basic Service Set (IBSS) allows two or more devices to communicate directly with each other without a need for a central device.

Basic Service Set (BSS) wireless LAN is established using a central device called an Access Point that centralizes access and control over a group of wireless devices.

IEEE 802.1x is an IEEE standard for port-based network access control (PNAC). It is part of the IEEE 802.1 group of networking protocols. It provides an authentication mechanism to devices wishing to attach to a LAN or Wlan.

Q6. Name two devices can interfere with the operation of a wireless network because they operate on similar frequencies?

WPA uses Tkip and wpa2 uses AES, but in summary Tkip is an older encryption standard used by the old WPA standard. AES is a newer wi-fi encryption solution used by the new-and-secure wpa2 standard. In theory, that’s the end of it 317 and 802.1b is being utilized in the wireless network.

The wireless is designed to act as a dhcp relay agent to the external dhcp server and acts like a dhcp server to the client. This is the sequence of events that occurs: Generally, wlan is tied to an interface which is configured with a dhcp server. When the wireless receives a dhcp request from the client on a wlan, it relays the Request to the dhcp server with its management ip address. The wireless shows its virtual ip address, which must be a non−routable address, usually configured as 192.168.0.1, as the dhcp server to the client.

Wlan is similar to that of ssid in the access point. It is required for a client to associate with its wireless network.

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Do you know everything about WiFi? 7 questions and answers

We used Wi-Fi every day without hesitation. It helps us establish wireless connections instantly and it works even if you are not an expert. The big question that arises is: what to do when the signal is weak? How do desktop Wi-Fi solutions work? THE devolo answers these and other questions in his latest press release.

After all, what is Wi-Fi?

It is assumed to be the abbreviation of «wireless fidelity🇧🇷 The procedure consists of locally limited radio networks, which by themselves do not establish an online connection to the Internet, but to the router, which then creates this connection. Its basic principle is that a large number of electronic devices can be connected online through wireless connections. Wi-Fi technology with 822.11 specifications was first released in 1997 by the Institute of Electrical and Electronics Engineers (IEEE).

What is Wi-Fi 5 and Wi-Fi 6?

without complications, Wi-Fi 5 is basically another name for the IEEE 802.11ac specification. already the Wi-Fi 6 it is the same for IEEE 802.11ax. Although Wi-Fi 6 is the latest and most advanced, it is still not supported by many devices, so it may not even reach the maximum theoretically possible transmission speed.

What is the difference between 2,4 GHz, 5 GHz and 6 GHz?

Wi-Fi can communicate on three frequency bands: 2,4 GHz, 5 GHz, and 6 GHz. And if you ask Which is the bestthe answer is that It depends of your needs To begin with, the frequency band of 2,4 GHz has a longer range, but it is also more susceptible to congestion problems. already the bands of 5Ghz and 6Ghz have a smaller range, but allow higher bandwidth and are less susceptible to failure. The 5 GHz and 6 GHz bands are recommended for applications where a higher data rate is required and the devices used are relatively close to each other. The 2,4 GHz bands are more suitable for ensuring basic Internet access over greater distances.

Is the Wi-Fi secure?

there is a clear distinction between public and private networks🇧🇷 On a public network, you have to be careful. It is recommended that, to the extent possible, you do not use sensitive applications, such as banking, on these networks. On your wireless network, you are responsible for the level of security implemented. Terms associated with different encryption methods are WEP, WPA, WPA2 and WPA3🇧🇷 Older WEP is considered insecure and out of date. Something that also applies to WPA. As for WPA2 and WPA3, they are the latest and most secure encryption methods for wireless home networks. WPA3 offers a slightly higher level of security and also makes it more convenient to set up a wireless network. But WPA2 is still a good option for Wi-Fi security. But the first step is a good password.

What can lead to poor Wi-Fi reception?

Walls, ceilings, furniture, plants or water are possible obstacles that can reduce coverage of your Wi-Fi connections. position the router carefully and strategically will help mitigate this problem.

How can Wi-Fi coverage be extended?

If your house is a certain size, it is not only with the router that you will be able to reach the Wi-Fi signal throughout the house. This is where repeater and powerline solutions come into play. In the case of repeaters, like the Devolo Wi-Fi 6 repeater we recently tested, they take the router’s existing signal and expand it, producing better coverage. But this is not the most effective solution. Especially over longer distances, you would need multiple repeaters connected in series to solve the problem. That’s where Devolo’s Magic series power lines that we’ve tested in the past can come into play.

These are compact adapters that simply plug into a power outlet, taking advantage of the electrical network to transmit data. It should be noted that the powerline connection is not affected by walls or ceilings and is ideal for long distances. They usually provide wired or wireless connection.

What is Mesh WiFi?

Basically, mesh Wi-Fi are smart home networks where multiple Wi-Fi access points work together through tight links. In this way, mobile devices always connect to the best available access point because the mesh network itself manages this connection. On a conventional Wi-Fi network, end devices stay connected to less than ideal access points, even when better options are nearby. You notice this in situations like a video call where you are walking around the house. This technology also gives you access to «band steering» for automatic selection of frequency bands and «airtime fairness.» In larger homes with multiple end devices, this conversion to mesh Wi-Fi may be worthwhile. In case you didn’t know, Devolo is an Aachen-based German company that has been developing powerful smart grid technology for over 20 years. In the current Magic product series we have, for example, flexible solutions for the precise expansion of the network via the power line. The WiFi 6 3000 and 5400 repeaters represent the latest in WiFi repeaters. TecnoBreak editors recommend:

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