CCNA Tutorial 1.11 – Wireless Principles
CCNA Tutorial 1.11 – Wireless Principles Quiz
Multiple Choice (20 questions)
- How many nonoverlapping channels are available in the 2.4 GHz Wi-Fi band (in most regions)?
- A) 3
- B) 5
- C) 11
- D) 13
- Which 2.4 GHz channels are considered nonoverlapping in the U.S.?
- A) 1, 5, 9
- B) 1, 6, 11
- C) 2, 7, 12
- D) 3, 8, 13
- Which frequency band provides more nonoverlapping channels and less interference?
- A) 2.4 GHz
- B) 5 GHz
- C) 900 MHz
- D) 1 GHz
- In Wi-Fi, the SSID is used for:
- A) Identifying the wireless network name
- B) Encrypting traffic
- C) Assigning IP addresses
- D) Preventing collisions
- Which of these is true about SSIDs?
- A) They must be unique globally
- B) They can be hidden from broadcast
- C) They replace IP addressing
- D) They are the MAC address of the AP
- What does RF stand for in wireless networking?
- A) Radio Frequency
- B) Routing Frame
- C) Random Function
- D) Registered Frame
- Which unit is typically used to measure wireless signal strength?
- A) Volts
- B) dBm
- C) Mbps
- D) GHz
- Which factor causes the greatest RF interference in the 2.4 GHz band?
- A) Fiber cables
- B) Microwave ovens and Bluetooth devices
- C) Copper cables
- D) Satellite links
- Which of these Wi-Fi standards operates in the 5 GHz band only?
- A) 802.11b
- B) 802.11g
- C) 802.11n
- D) 802.11a
- Which wireless encryption standard is considered the most secure today?
- A) WEP
- B) WPA
- C) WPA2
- D) WPA3
- Which wireless encryption method is considered insecure and obsolete?
- A) WPA3
- B) WPA2
- C) WPA
- D) WEP
- Which protocol is used for wireless authentication in enterprise networks?
- A) EAP
- B) ARP
- C) ICMP
- D) NAT
- Which encryption method uses AES (Advanced Encryption Standard)?
- A) WEP
- B) WPA2
- C) WPA3
- D) Both WPA2 and WPA3
- What happens if multiple APs are set to the same channel in 2.4 GHz?
- A) Faster speeds
- B) Channel overlap and interference
- C) Better roaming
- D) Automatic load balancing
- Which term refers to the loss of signal strength as it travels through space?
- A) Reflection
- B) Refraction
- C) Attenuation
- D) Diffraction
- Which frequency has a shorter range but higher throughput?
- A) 2.4 GHz
- B) 5 GHz
- C) Both are equal
- D) 900 MHz
- Which frequency has longer range but more interference?
- A) 2.4 GHz
- B) 5 GHz
- C) Both are equal
- D) 60 GHz
- Which wireless feature allows users to see the available networks in their area?
- A) SSID broadcast
- B) Channel bonding
- C) NAT
- D) MAC filtering
- Which technology introduced stronger encryption with WPA3?
- A) TKIP
- B) CCMP
- C) SAE (Simultaneous Authentication of Equals)
- D) AES-128
- Which command on a client OS would you use to verify Wi-Fi IP parameters?
- A) ipconfig /all (Windows)
- B) ifconfig or ip addr show (Linux/Mac)
- C) Both A and B
- D) None
Fill in the Blank (5 questions)
- The three nonoverlapping 2.4 GHz Wi-Fi channels in the U.S. are __________, __________, and __________.
- The wireless network name broadcast by an AP is called the __________.
- RF stands for __________ __________.
- The strongest Wi-Fi encryption standard currently recommended is __________.
- The weakening of a wireless signal over distance is called __________.
CCNA Tutorial 1.11 – Wireless Principles Answer Key
- A) 3
- B) 1, 6, 11
- B) 5 GHz
- A) Identifying the wireless network name
- B) They can be hidden from broadcast
- A) Radio Frequency
- B) dBm
- B) Microwave ovens and Bluetooth devices
- D) 802.11a
- D) WPA3
- D) WEP
- A) EAP
- D) Both WPA2 and WPA3
- B) Channel overlap and interference
- C) Attenuation
- B) 5 GHz
- A) 2.4 GHz
- A) SSID broadcast
- C) SAE (Simultaneous Authentication of Equals)
- C) Both A and B
- 1, 6, 11
- SSID
- Radio Frequency
- WPA3
- Attenuation