WIFI

Question 1

Which IEEE standard defines Wi-Fi (Wireless LAN)?
A) IEEE 802.3
B) IEEE 802.11
C) IEEE 802.1Q
D) IEEE 802.5

Answer 1

Answer: B

Question 2

What is the frequency band used by 802.11a?
A) 2.4 GHz
B) 5 GHz
C) 900 MHz
D) 60 GHz

Answer 2

Answer: B

Question 3

Which Wi-Fi standard offers the highest maximum data rate?
A) 802.11ac
B) 802.11n
C) 802.11g
D) 802.11ax (Wi-Fi 6)

Answer 3

Answer: D

Question 4

What is the maximum theoretical data rate of 802.11g?
A) 11 Mbps
B) 54 Mbps
C) 600 Mbps
D) 1 Gbps

Answer 4

Answer: B

Question 5

Which encryption protocol is considered the most secure for Wi-Fi?
A) WEP
B) WPA
C) WPA2
D) WPA3

Answer 5

Answer: D

Question 6

What is the primary purpose of CSMA/CA in Wi-Fi?
A) Error correction
B) Collision avoidance
C) Encryption
D) Authentication

Answer 6

Answer: B

Question 7

Which Wi-Fi standard introduced MIMO technology?
A) 802.11a
B) 802.11b
C) 802.11g
D) 802.11n

Answer 7

Answer: D

Question 8

What is the maximum number of non-overlapping channels in the 2.4 GHz band?
A) 3
B) 11
C) 14
D) 23

Answer 8

Answer: A

Question 9

Which wireless mode allows a device to connect directly to another device without an AP?
A) Infrastructure
B) Ad-hoc
C) Mesh
D) Bridge

Answer 9

Answer: B

Question 10

What is the primary function of a Wireless Access Point (AP)?
A) Route traffic between networks
B) Convert wired Ethernet to wireless
C) Provide DHCP services
D) Block unauthorized users

Answer 10

Answer: B

Question 11

Which Wi-Fi security protocol uses TKIP encryption?
A) WEP
B) WPA
C) WPA2
D) WPA3

Answer 11

Answer: B

Question 12

What is the purpose of SSID in Wi-Fi networks?
A) Encrypt data
B) Identify the wireless network
C) Assign IP addresses
D) Filter MAC addresses

Answer 12

Answer: B

Question 13

Which Wi-Fi standard operates only in the 5 GHz band?
A) 802.11b
B) 802.11g
C) 802.11n
D) 802.11a

Answer 13

Answer: D

Question 14

What does OFDM stand for in Wi-Fi technology?
A) Orthogonal Frequency Division Multiplexing
B) Open Frequency Data Modulation
C) Optimized Frequency Dynamic Management
D) Optical Fiber Data Mode

Answer 14

Answer: A

Question 15

Which wireless topology uses multiple APs for seamless roaming?
A) Ad-hoc
B) Infrastructure
C) Mesh
D) Point-to-point

Answer 15

Answer: B

Question 16

What is the main advantage of using 5 GHz over 2.4 GHz?
A) Longer range
B) Less interference
C) Better wall penetration
D) Lower power consumption

Answer 16

Answer: B

Question 17

Which protocol is used for centralized authentication in enterprise Wi-Fi?
A) WPA2-PSK
B) RADIUS
C) WEP
D) TKIP

Answer 17

Answer: B

Question 18

What is the purpose of a Wi-Fi site survey?
A) Test encryption strength
B) Identify optimal AP placement
C) Monitor user traffic
D) Block unauthorized devices

Answer 18

Answer: B

Question 19

Which Wi-Fi security method uses a pre-shared key (PSK)?
A) WPA2-Enterprise
B) WPA2-Personal
C) WEP-Enterprise
D) WPA3-Enterprise

Answer 19

Answer: B

Question 20

What is the maximum data rate of 802.11b?
A) 1 Mbps
B) 11 Mbps
C) 54 Mbps
D) 100 Mbps

Answer 20

Answer: B

Question 21

Which wireless security protocol is vulnerable to KRACK attacks?
A) WPA2
B) WPA3
C) WEP
D) WPA

Answer 21

Answer: A

Question 22

What is the role of a wireless controller in a WLAN?
A) Manage multiple APs centrally
B) Encrypt all wireless traffic
C) Assign IP addresses to clients
D) Block unauthorized SSIDs

Answer 22

Answer: A

Question 23

Which Wi-Fi standard introduced beamforming?
A) 802.11a
B) 802.11n
C) 802.11ac
D) 802.11g

Answer 23

Answer: B

Question 24

What is the main disadvantage of using WEP?
A) Complex configuration
B) Weak encryption
C) High power consumption
D) Slow speeds

Answer 24

Answer: B

Question 25

Which Wi-Fi frame type is used for probe requests? A) Management B) Control C) Data D) Beacon

Answer 25

Answer: A

Question 26

What is the purpose of a captive portal in Wi-Fi? A) Encrypt traffic B) Force authentication before access C) Block specific websites D) Prioritize traffic

Answer 26

Answer: B

Question 27

Which Wi-Fi standard supports MU-MIMO? A) 802.11n B) 802.11ac C) 802.11g D) 802.11a

Answer 27

Answer: B

Question 28

What is the default authentication method for open Wi-Fi networks? A) WPA2 B) WPA3 C) None (open) D) WEP

Answer 28

Answer: C

Question 29

Which wireless security protocol uses AES encryption? A) WEP B) WPA C) WPA2 D) WPA (TKIP)

Answer 29

Answer: C

Question 30

What is the primary function of a Wi-Fi repeater? A) Extend wireless coverage B) Encrypt traffic C) Block interference D) Assign IP addresses

Answer 30

Answer: A

Question 31

Which Wi-Fi standard introduced 160 MHz channel width? A) 802.11n B) 802.11ac C) 802.11ax D) 802.11g

Answer 31

Answer: B

Question 32

What is the purpose of a BSSID in Wi-Fi? A) Identify a client device B) Identify an AP’s MAC address C) Encrypt data D) Assign IP addresses

Answer 32

Answer: B

Question 33

Which Wi-Fi security method requires a RADIUS server? A) WPA2-Personal B) WPA3-Personal C) WPA2-Enterprise D) WEP

Answer 33

Answer: C

Question 34

What is the primary benefit of 802.11ax (Wi-Fi 6)? A) Higher efficiency in dense environments B) Longer range C) Lower frequency band D) Simpler encryption

Answer 34

Answer: A

Question 35

Which wireless attack involves fake APs to steal credentials? A) DDoS B) Evil Twin C) KRACK D) Bluesnarfing

Answer 35

Answer: B

Question 36

What is the purpose of QoS in Wi-Fi? A) Prioritize critical traffic B) Encrypt data C) Block unauthorized users D) Extend signal range

Answer 36

Answer: A

Question 37

Which Wi-Fi frame type carries user data? A) Management B) Control C) Data D) Beacon

Answer 37

Answer: C

Question 38

What is the primary drawback of using ad-hoc mode? A) No centralized management B) Slow speeds C) High power consumption D) Weak encryption

Answer 38

Answer: A

Question 39

Which Wi-Fi standard introduced OFDMA? A) 802.11ac B) 802.11ax C) 802.11n D) 802.11g

Answer 39

Answer: B

Question 40

What is the purpose of a Wi-Fi analyzer tool? A) Monitor signal strength and interference B) Encrypt wireless traffic C) Assign IP addresses D) Block unauthorized devices

Answer 40

Answer: A

Question 41

Which Wi-Fi security protocol is mandatory for WPA3? A) TKIP B) AES C) RC4 D) DES

Answer 41

Answer: B

Question 42

What is the primary benefit of using 802.11ac over 802.11n? A) Higher data rates B) Better range C) Lower power consumption D) More non-overlapping channels

Answer 42

Answer: A

Question 43

Which Wi-Fi frame type is used for association requests? A) Management B) Control C) Data D) Beacon

Answer 43

Answer: A

Question 44

What is the purpose of band steering in Wi-Fi? A) Push dual-band clients to 5 GHz B) Encrypt traffic C) Block specific devices D) Extend signal range

Answer 44

Answer: A

Question 45

Which wireless security protocol was replaced by WPA? A) WEP B) WPA2 C) WPA3 D) TKIP

Answer 45

Answer: A

Question 46

What is the primary advantage of using 802.11ax in IoT environments? A) Better battery life for devices B) Higher data rates C) Longer range D) Simpler configuration

Answer 46

Answer: A

Question 47

Which Wi-Fi standard supports both 2.4 GHz and 5 GHz bands? A) 802.11a B) 802.11b C) 802.11g D) 802.11n

Answer 47

Answer: D

Question 48

What is the purpose of a Wi-Fi heat map? A) Visualize signal strength and coverage B) Encrypt wireless traffic C) Block interference D) Assign IP addresses

Answer 48

Answer: A

Question 49

Which Wi-Fi security protocol uses Simultaneous Authentication of Equals (SAE)? A) WPA2 B) WPA3 C) WEP D) WPA

Answer 49

Answer: B

Question 50

What is the primary function of a wireless bridge? A) Connect two wired networks wirelessly B) Extend Wi-Fi coverage C) Encrypt data D) Filter MAC addresses

Answer 50

Answer: A