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Worksheets3rd Preliminary Exam - TLE-ICT_CSS_2025
Total questions: 45
Worksheet time: 16mins
What does "LAN" stand for?
Local Area Network
Long Area Network
Large Area Network
Linked Area Network
Which protocol is responsible for routing data packets between networks?
TCP
UDP
IP
HTTP
What is the purpose of a DNS server?
To assign IP addresses
To translate domain names into IP addresses
To route network traffic
To encrypt network data
Which of the following is a common network topology?
Bus
Star
Ring
All of the above
What does "WAN" stand for?
Wide Area Network
Wireless Area Network
World Area Network
Web Area Network
What is a MAC address used for?
To identify a device on a network
To route network traffic
To encrypt network data
To translate domain names
Which protocol is used for secure communication over the internet?
HTTP
FTP
HTTPS
SMTP
What is the purpose of a firewall?
To translate domain names
To route network traffic
To encrypt network data
To protect a network from unauthorized access
What is a subnet?
A logical division of a network
A physical division of a network
A type of network topology
A network security protocol
What does "IP" stand for in an IP address?
Internet Protocol
Internet Port
Internetwork Protocol
Internet Packet
What is a router?
A device that connects networks
A device that connects devices on the same network
A type of network cable
A network security protocol
What is a switch?
A network security protocol
A device that connects networks
A type of network cable
A device that forwards data packets within a network
What is a protocol?
A set of rules governing data transmission
A type of network cable
A network security protocol
A device that connects networks
What is a packet?
A unit of data transmitted over a network
A type of network cable
A network security protocol
A device that connects networks
What is TCP/IP?
A suite of networking protocols
A type of network cable
A network security protocol
A device that connects networks
What is a network interface card (NIC)?
A hardware component that allows a device to connect to a network
A software component that allows a device to connect to a network
A type of network cable
A network security protocol
Class A IP address has how many bits dedicated to the network address?
8
16
24
32
What is the typical range of host addresses available in a Class C network without subnetting?
254
65,534
16,777,214
4,294,967,294
Which class of IP address is best suited for a large organization with many hosts?
Class A
Class B
Class C
Class D
What is the default subnet mask for a Class B network?
255.0.0.0
255.255.0.0
255.255.255.0
255.255.255.255
What is the default subnet mask for a Class D network?
255.0.0.0
255.255.0.0
255.255.255.0
255.255.255.255
The first octet of a Class C IP address always starts with:
0
10
127
192
Class D IP addresses are primarily used for:
Host addressing
Multicasting
Broadcasting
Loopback testing
An IP address of 192.168.1.100 falls into which class?
Class A
Class B
Class C
Class D
An IP address of 177.105.1.0 falls into which class?
Class A
Class B
Class C
Class D
The number of bits used for the host portion of a Class B address is:
8
16
24
32
The number of bits used for the host portion of a Class C address is:
8
16
24
32
IP addresses are divided into five main ________ based on their first octet.
________ IP addresses are assigned to devices within a private network and are not routable on the public internet.
________ IP addresses are assigned by an Internet Service Provider (ISP) and are used for communication on the public internet.
________ IP addresses are assigned permanently to a device and remain the same unless manually changed.
________ IP addresses are assigned dynamically to a device when it connects to a network and can change each time the device connects.
________ IP addresses are used for communication within a local area network (LAN) and are not routable on the public internet.
________ IP addresses are used for communication between different networks and are routable on the public internet.
________ IP addresses are used for multicast communication, where data is sent to a group of devices simultaneously.
_______ IP addresses are reserved for experimental purposes and are not used in typical networks.
Which topology is known for its central point of failure?
Mesh
Star
Ring
Bus
A device that forwards data packets between networks is called a:
Hub
Switch
Router
Modem
In a __ topology, every device is connected to every other device.
Which device is primarily used to connect individual computers to a network?
Router
Bridge
Switch
Gateway
A network topology where nodes are connected in a closed loop is called a:
Bus topology
Star topology
Ring topology
Mesh topology
What is the purpose of subnetting in a network?
All of the above
To increase the number of available IP addresses
To simplify network management
To improve network performance and security
How many subnets can be created from a Class C network with a subnet mask of 255.255.255.192?
16
2
4
8
What is the maximum number of hosts that can be accommodated in a subnet with a subnet mask of 255.255.255.240?
14
30
126
62
You have come up with a subnet mask that will allow all 3 web servers to be on the same network while providing the maximum number of subnets. Which network address and subnet mask meet this requirement?
IP: 192.168.252.0
Subnet Mask: 255.255.255.252
IP: 192.168.252.8
Subnet Mask: 255.255.255.252
IP: 192.168.252.8
Subnet Mask: 255.255.255.248
IP: 192.168.252.16
Subnet Mask: 255.255.255.240
