WorksheetsIT Networking Certification Quiz
Total questions: 20
Worksheet time: 10mins
Which protocol is used to assign IP addresses automatically to devices on a network?
FTP
DHCP
SMTP
SNMP
What does the acronym "LAN" stand for?
Local Area Network
Large Access Node
Logical Address Network
Long Area Node
Which layer of the OSI model is responsible for routing packets between devices?
Physical
Data Link
Network
Application
What is the default subnet mask for a Class C IP address?
255.0.0.0
255.255.0.0
255.255.255.0
255.255.255.255
Which protocol is used to securely transfer files over a network?
FTP
HTTP
SFTP
SMTP
What is the main purpose of a firewall in a network?
To increase network speed
To block unauthorized access
To assign IP addresses
To connect wireless devices
Which wireless security protocol is considered the most secure for home networks?
WEP
WPA
WPA2
Open
What does the "ping" command test?
Network speed
Network connectivity
Wireless signal strength
File transfer rate
Which of the following is a private IP address?
8.8.8.8
172.16.0.1
192.0.2.1
203.0.113.1
What is the main function of DNS in networking?
Encrypt data
Assign IP addresses
Translate domain names to IP addresses
Monitor network traffic
Given the IP address 192.168.1.100/24, how many usable host addresses are available in this subnet?
254
256
128
512
A user cannot access a website, but can ping its IP address. Which layer of the OSI model is most likely experiencing issues?
Physical
Data Link
Network
Application
You are asked to configure a wireless network for a small office. Which two settings should you change from their default values to improve security?
SSID and password
Channel and bandwidth
IP address and subnet mask
MAC address and gateway
If a device has an IP address of 10.0.0.5 and a subnet mask of 255.255.255.0, what is the network address?
10.0.0.0
10.0.0.1
10.0.0.255
10.0.1.0
Which protocol would you use to remotely manage a network switch securely?
Telnet
FTP
SSH
HTTP
A user reports slow wireless speeds. Which troubleshooting step should you try first?
Replace the router
Change the wireless channel
Reinstall the operating system
Upgrade the network card
You need to allow only specific devices to connect to your wireless network. Which feature should you enable?
Port forwarding
MAC address filtering
DHCP
NAT
Which of the following best describes the function of NAT (Network Address Translation)?
Encrypts network traffic
Translates private IP addresses to public IP addresses
Assigns MAC addresses to devices
Monitors network performance
A network administrator wants to divide a network into multiple subnets. Which device is best suited for this task?
Switch
Hub
Router
Repeater
You are troubleshooting a network issue and suspect a faulty cable. Which tool should you use to test the cable?
Multimeter
Cable tester
Spectrum analyzer
Protocol analyzer
