Q. What does the term 'handoff' refer to in wireless communication?
A.
Switching between different frequency bands
B.
Transferring a call from one cell tower to another
C.
Changing the encryption method
D.
Adjusting the transmission power
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Solution
Handoff refers to the process of transferring an active call or data session from one cell tower to another as a user moves through the coverage area.
Correct Answer:
B
— Transferring a call from one cell tower to another
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Q. What is the maximum data rate of 802.11ac Wi-Fi technology?
A.
54 Mbps
B.
600 Mbps
C.
1.3 Gbps
D.
3.5 Gbps
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Solution
The maximum data rate of 802.11ac can reach up to 1.3 Gbps under optimal conditions.
Correct Answer:
C
— 1.3 Gbps
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Q. What is the maximum data rate of the 802.11ac Wi-Fi standard?
A.
54 Mbps
B.
600 Mbps
C.
1.3 Gbps
D.
3.5 Gbps
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Solution
The 802.11ac standard can achieve maximum data rates of up to 1.3 Gbps under optimal conditions.
Correct Answer:
C
— 1.3 Gbps
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Q. What is the maximum range of a typical Wi-Fi network in open space?
A.
50 meters
B.
100 meters
C.
200 meters
D.
300 meters
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Solution
A typical Wi-Fi network can reach up to 100 meters in open space, although this can vary based on environmental factors and the specific technology used.
Correct Answer:
B
— 100 meters
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Q. What is the primary function of a wireless access point?
A.
To route traffic between networks
B.
To connect wired devices to a wireless network
C.
To encrypt data packets
D.
To manage IP addressing
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Solution
A wireless access point connects wired devices to a wireless network, allowing them to communicate with wireless clients.
Correct Answer:
B
— To connect wired devices to a wireless network
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Q. What is the primary purpose of error control in wireless communication?
A.
To increase bandwidth
B.
To ensure data integrity
C.
To reduce latency
D.
To manage network traffic
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Solution
The primary purpose of error control in wireless communication is to ensure data integrity by detecting and correcting errors that may occur during transmission.
Correct Answer:
B
— To ensure data integrity
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Q. What is the purpose of the SSID in a wireless network?
A.
To encrypt the data
B.
To identify the network
C.
To assign IP addresses
D.
To manage bandwidth
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Solution
The SSID (Service Set Identifier) is used to identify a wireless network, allowing devices to connect to the correct network.
Correct Answer:
B
— To identify the network
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Q. What layer of the OSI model does Wi-Fi operate on?
A.
Application Layer
B.
Transport Layer
C.
Network Layer
D.
Data Link Layer
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Solution
Wi-Fi operates at the Data Link Layer (Layer 2) of the OSI model, where it handles the framing and transmission of data over the wireless medium.
Correct Answer:
D
— Data Link Layer
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Q. What technology allows multiple devices to connect to a single wireless access point?
A.
MIMO
B.
WEP
C.
NAT
D.
DHCP
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Solution
MIMO (Multiple Input Multiple Output) technology allows multiple devices to connect to a single wireless access point by using multiple antennas to send and receive more data simultaneously.
Correct Answer:
A
— MIMO
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Q. What technology is used to extend the range of a wireless network?
A.
Repeater
B.
Router
C.
Switch
D.
Bridge
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Solution
A repeater is used to extend the range of a wireless network by receiving and retransmitting the wireless signal.
Correct Answer:
A
— Repeater
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Q. Which frequency band is commonly used by 802.11n Wi-Fi?
A.
2.4 GHz
B.
5 GHz
C.
Both 2.4 GHz and 5 GHz
D.
1.2 GHz
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Solution
802.11n can operate on both the 2.4 GHz and 5 GHz frequency bands, providing flexibility in network design.
Correct Answer:
C
— Both 2.4 GHz and 5 GHz
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Q. Which frequency bands are commonly used by Wi-Fi networks?
A.
2.4 GHz and 5 GHz
B.
1.2 GHz and 3.6 GHz
C.
900 MHz and 1.8 GHz
D.
5 GHz and 10 GHz
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Solution
Wi-Fi networks commonly operate on the 2.4 GHz and 5 GHz frequency bands, providing different ranges and speeds.
Correct Answer:
A
— 2.4 GHz and 5 GHz
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Q. Which of the following is a common frequency band used by Wi-Fi networks?
A.
2.4 GHz
B.
5.0 GHz
C.
Both 2.4 GHz and 5.0 GHz
D.
1.2 GHz
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Solution
Wi-Fi networks commonly operate on both the 2.4 GHz and 5.0 GHz frequency bands, allowing for flexibility in range and speed.
Correct Answer:
C
— Both 2.4 GHz and 5.0 GHz
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Q. Which of the following is a common security protocol used in wireless networks?
A.
WEP
B.
SMTP
C.
IPSec
D.
FTP
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Solution
WEP (Wired Equivalent Privacy) is a security protocol that was commonly used to secure wireless networks, although it is now considered insecure.
Correct Answer:
A
— WEP
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Q. Which of the following is a disadvantage of using wireless networks?
A.
Higher installation costs
B.
Limited mobility
C.
Interference from other devices
D.
Faster data transfer rates
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Solution
One of the disadvantages of wireless networks is that they can experience interference from other devices, which can affect performance.
Correct Answer:
C
— Interference from other devices
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Q. Which of the following is a disadvantage of using wireless technology?
A.
Higher installation costs
B.
Limited mobility
C.
Interference from other devices
D.
Faster data transfer rates
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Solution
One of the disadvantages of wireless technology is interference from other devices, which can affect the quality and reliability of the connection.
Correct Answer:
C
— Interference from other devices
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Q. Which of the following is a disadvantage of wireless networks?
A.
Higher installation costs
B.
Limited mobility
C.
Interference from other devices
D.
Faster data transfer rates
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Solution
Wireless networks can suffer from interference from other devices, which can affect performance and reliability.
Correct Answer:
C
— Interference from other devices
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Q. Which protocol is primarily used for wireless communication in local area networks?
A.
HTTP
B.
FTP
C.
IEEE 802.11
D.
TCP
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Solution
IEEE 802.11 is the set of protocols used for wireless communication in local area networks, commonly known as Wi-Fi.
Correct Answer:
C
— IEEE 802.11
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Q. Which protocol is primarily used for wireless network security?
A.
HTTP
B.
FTP
C.
WPA2
D.
SMTP
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Solution
WPA2 (Wi-Fi Protected Access 2) is the most commonly used protocol for securing wireless networks, providing strong encryption and authentication.
Correct Answer:
C
— WPA2
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Q. Which technology is used to extend the range of a wireless network?
A.
Router
B.
Repeater
C.
Switch
D.
Modem
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Solution
A repeater is used to extend the range of a wireless network by receiving and retransmitting the wireless signal.
Correct Answer:
B
— Repeater
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Q. Which wireless technology is used for short-range communication between devices?
A.
Wi-Fi
B.
Bluetooth
C.
Zigbee
D.
LTE
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Solution
Bluetooth is a wireless technology designed for short-range communication between devices, typically within a range of about 10 meters.
Correct Answer:
B
— Bluetooth
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Q. Which wireless technology uses MIMO to improve performance?
A.
802.11a
B.
802.11b
C.
802.11g
D.
802.11n
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Solution
802.11n uses MIMO (Multiple Input Multiple Output) technology to improve performance by using multiple antennas for transmission and reception.
Correct Answer:
D
— 802.11n
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