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WorksheetsTopic 4: NDC
Total questions: 30
Worksheet time: 15mins
Which of the following is a benefit of wireless networking?
Requires more cabling
Limited mobility
Scalability
High installation cost
Wireless networks are most beneficial in which of the following situations?
When mobility is not required
In remote or hard-to-wire areas
For secure environments only
In places with strong electromagnetic interference
What is a major disadvantage of wireless networks compared to wired?
Higher speed
Better reliability
Lower security
Reduced mobility
Which of these is not a benefit of WLAN?
Flexibility
Mobility
Interference-free environment
Cost-effectiveness
Why is scalability considered a benefit of wireless networking?
Wireless networks are slow
Devices can easily join or leave the network
It uses copper cables
It’s more secure by default
Which of the following is a type of wireless network?
WAN
LAN
PAN
MAN
A network that connects devices within a few meters like Bluetooth is called:
WLAN
MAN
WAN
PAN
Which wireless network type typically covers a city?
WLAN
PAN
MAN
SAN
What does WLAN stand for?
Wired Local Area Network
Wireless Local Access Network
Wireless Local Area Network
Wide Local Area Network
What is the range of a typical WLAN indoors?
5–10 meters
20–30 meters
50–100 meters
150–300 meters
Which IEEE standard is commonly used for Wi-Fi?
802.1X
802.3
802.11
802.5
Which of the following uses radio frequency for data transmission?
Wi-Fi
Ethernet
Coaxial cable
Fibre optics
Which wireless technology is used in short-distance communication between phones and accessories?
WiMAX
Infrared
Bluetooth
NFC
Which frequency bands are commonly used by Wi-Fi?
1 GHz & 2 GHz
2.4 GHz & 5 GHz
3.5 GHz & 4.9 GHz
900 MHz & 1.8 GHz
Which of these is a long-range wireless technology?
Bluetooth
WiMAX
Infrared
NFC
Which version of IEEE 802.11 offers the fastest theoretical speed?
802.11a
802.11n
802.11ac
802.11b
NFC stands for:
Near Frequency Communication
New Fast Communication
Near Field Communication
Narrow Field Channel
Which wireless technology requires line-of-sight communication?
Bluetooth
Infrared
Wi-Fi
ZigBee
ZigBee is mostly used in:
Smart home and IoT devices
Video streaming
Large-scale Wi-Fi networks
Mobile telephony
What is the main purpose of MIMO in wireless networks?
Reduce encryption
Increase number of routers
Improve range and data rates
Provide mobility
The first step in setting up a WLAN is:
Installing antivirus software
Connecting to Ethernet
Selecting the right wireless router
Connecting all devices
Which device broadcasts the wireless signal in a WLAN?
Switch
Modem
Wireless Router
Hub
What security protocol is considered most secure for WLAN?
WEP
WPA
WPA2
WPA3
What does SSID stand for?
Secure Server Identifier
Service Set Identifier
Secure Site ID
Set Security ID
Which of the following settings is essential when configuring a wireless router?
IP address
MAC address
SSID and security mode
CPU speed
Which method can be used to filter devices allowed to connect to WLAN?
DHCP reservation
MAC address filtering
DNS blocking
IP blacklisting
Which tool is used to check Wi-Fi signal strength?
Disk Cleanup
Wireshark
Ping
NetSpot
In a WLAN, what is the purpose of a repeater/extender?
Increase IP range
Provide additional SSIDs
Boost Wi-Fi coverage
Encrypt the signal
A strong Wi-Fi password should be:
Easy to remember
Only 4 characters
Complex and long
Same as your name
To reduce interference in a WLAN, you can:
Use overlapping channels
Use the same channel for all APs
Choose non-overlapping channels (like 1, 6, 11)
Increase signal power only
