Wi-Fi Troubleshooting Quiz: Wireless Network+ Skills

1. What is the purpose of the SSID in a wireless network?

Encrypts wireless traffic

Identifies the wireless network name

Manages client authentication

Allocates IP addresses

2. Which frequency band typically experiences less interference but shorter range?

2.4 GHz band

5 GHz band

900 MHz band

6 GHz band

3. A guest cannot authenticate to the wireless network despite correct passphrase entry. What should you verify?

The access point's MAC address

SSID broadcast and authentication method compatibility

The router's WAN connection status

All connected clients' IP addresses

4. What is the maximum number of non-overlapping channels available in the 2.4 GHz band?

3

6

11

14

5. True or False: A wireless client must have line-of-sight to an access point to connect.

True

False

6. When troubleshooting a dead zone in an office, which solution would improve coverage most effectively?

Increase transmit power on the access point

Install an additional access point in the dead zone

Change the wireless security protocol

Reduce the number of connected clients

7. What does WPA2 use for encryption?

RC4 algorithm

AES (Advanced Encryption Standard)

DES encryption

MD5 hashing

8. A client experiences intermittent disconnections from the wireless network. Which factor is least likely responsible?

RF interference from neighboring networks

Outdated router firmware

Physical obstacles between client and AP

Incorrect DNS server configuration

9. True or False: 802.11n can operate on both 2.4 GHz and 5 GHz bands simultaneously.

True

False

10. Which tool would you use to analyze Wi-Fi signal strength and channel usage?

Ping utility

WiFi analyzer or spectrum analyzer

Tracert command

Netstat command

11. What is the primary cause of Wi-Fi signal degradation in the 2.4 GHz band?

Interference from microwave ovens and Bluetooth devices

Excessive number of connected clients

Outdated router firmware

Poor power supply to the access point

12. A laptop connects to Wi-Fi but cannot access the internet. Which OSI layer should you investigate first?

Physical layer

Data link layer

Network layer

Application layer

13. True or False: WEP (Wired Equivalent Privacy) is considered secure for modern wireless networks.

True

False

14. What does the 802.11ac standard specify regarding bandwidth?

Up to 40 MHz channels

Up to 80 MHz or 160 MHz channels

Only 20 MHz channels

Variable bandwidth based on interference

15. A user reports slow Wi-Fi speeds near the access point. What is the most likely cause?

Weak signal strength

Co-channel interference from nearby networks

Outdated wireless adapter

Insufficient DHCP pool

16. Which channel in the 2.4 GHz band does not overlap with other channels?

Channels 1, 6, and 11

Channels 2, 7, and 12

Channels 3, 8, and 13

Channels 4, 9, and 14

17. True or False: The 5 GHz band provides better range than the 2.4 GHz band.

True

False

18. What does RSSI measure in wireless networks?

Data transmission speed

Received signal strength indicator

Network latency

Authentication protocol version

19. A client cannot connect to a WPA2-secured network despite entering the correct passphrase. What should you check first?

Replace the wireless adapter driver

Verify the access point's WPA2 settings and SSID broadcast status

Change the network channel to 1

Disable all security temporarily

20. Which wireless standard offers the highest data rate and operates on the 5 GHz band?

802.11a

802.11n

802.11ac

802.11b

Wi-Fi Troubleshooting Quiz: Can You Fix the Signal?

1. What is the purpose of the SSID in a wireless network?

2.

What first name or nickname would you like us to use?

2. Which frequency band typically experiences less interference but shorter range?

3. A guest cannot authenticate to the wireless network despite correct passphrase entry. What should you verify?

4. What is the maximum number of non-overlapping channels available in the 2.4 GHz band?

5. True or False: A wireless client must have line-of-sight to an access point to connect.

6. When troubleshooting a dead zone in an office, which solution would improve coverage most effectively?

7. What does WPA2 use for encryption?

8. A client experiences intermittent disconnections from the wireless network. Which factor is least likely responsible?

9. True or False: 802.11n can operate on both 2.4 GHz and 5 GHz bands simultaneously.

10. Which tool would you use to analyze Wi-Fi signal strength and channel usage?

11. What is the primary cause of Wi-Fi signal degradation in the 2.4 GHz band?

12. A laptop connects to Wi-Fi but cannot access the internet. Which OSI layer should you investigate first?

13. True or False: WEP (Wired Equivalent Privacy) is considered secure for modern wireless networks.

14. What does the 802.11ac standard specify regarding bandwidth?

15. A user reports slow Wi-Fi speeds near the access point. What is the most likely cause?

16. Which channel in the 2.4 GHz band does not overlap with other channels?

17. True or False: The 5 GHz band provides better range than the 2.4 GHz band.

18. What does RSSI measure in wireless networks?

19. A client cannot connect to a WPA2-secured network despite entering the correct passphrase. What should you check first?

20. Which wireless standard offers the highest data rate and operates on the 5 GHz band?