WorksheetsExploring Computer Hardware and Networking
Total questions: 15
Worksheet time: 8mins
What are the main types of computer hardware?
Software applications and programs
The main types of computer hardware are: input devices, output devices, storage devices, processing units, and networking components.
Motherboards and CPUs only
Web browsers and operating systems
Define the star topology in networking.
A star topology is a network configuration where all devices are connected to a central hub or switch.
A star topology has no central hub or switch.
In a star topology, devices communicate directly with each other.
A star topology connects devices in a linear fashion.
What is the purpose of an IP address?
To encrypt data transmitted over the network.
To assign a unique username to each user.
The purpose of an IP address is to identify and locate devices on a network.
To provide internet access to devices.
Explain the concept of subnetting.
Subnetting is only used for wireless networks.
Subnetting allows for the creation of smaller networks within a larger network, improving management and security.
Subnetting eliminates the need for IP addresses in a network.
Subnetting is the process of merging multiple networks into one.
List the key features of the 802.11ac wireless standard.
Maximum theoretical throughput of 1 Gbps
Supports only 2 spatial streams
Supports up to 8 spatial streams, Channel widths of 20, 40, 80, and 160 MHz, Maximum theoretical throughput of 3.5 Gbps, Uses 256-QAM modulation for higher data rates, Multi-User MIMO (MU-MIMO) for simultaneous data transmission to multiple devices, Beamforming technology for improved signal strength and range, Backward compatibility with 802.11a/b/g/n standards
Uses 64-QAM modulation for lower data rates
What is the difference between a hub and a switch?
A hub operates at the application layer, while a switch operates at the network layer.
A hub connects devices directly, while a switch connects to a router.
A hub broadcasts data to all devices, while a switch sends data only to the intended recipient.
A hub can filter data packets, while a switch cannot.
Describe the bus topology and its advantages.
Bus topology allows for easy installation and requires less cable than other topologies, making it cost-effective. It is also easy to understand and implement.
Bus topology is not suitable for small networks.
Bus topology requires more cable than star topology.
Bus topology is the most complex to implement.
What is a public IP address?
A public IP address is an IP address that is accessible over the internet.
A public IP address is only used for local networks.
A public IP address is a temporary address assigned to devices.
A public IP address is an IP address that is not accessible over the internet.
How does WPA2 enhance network security?
WPA2 uses outdated encryption methods like WEP.
WPA2 enhances network security through stronger encryption (AES) and robust authentication mechanisms.
WPA2 relies solely on physical security measures.
WPA2 does not require any authentication for users.
What are the components of a computer's CPU?
Graphics Processing Unit (GPU)
Motherboard
Power Supply Unit (PSU)
Arithmetic Logic Unit (ALU), Control Unit (CU), Registers, Cache Memory, Bus Interface
Explain the role of a router in a network.
A router directs data packets between networks and manages traffic.
A router connects devices within the same network only.
A router is used to store data permanently.
A router encrypts data for secure transmission.
What is the significance of the subnet mask?
The subnet mask is used to encrypt data for security purposes.
The subnet mask determines the speed of the internet connection.
The subnet mask is significant for defining network boundaries and facilitating IP address management.
The subnet mask is only relevant for wireless networks.
Describe the mesh topology and its use cases.
Mesh topology relies on a single central hub for connectivity.
Mesh topology is not suitable for high-traffic environments.
Mesh topology is used in scenarios requiring high availability and reliability, such as in military communications, large-scale data centers, and wireless networks.
Mesh topology is primarily used in small home networks.
What are the main differences between IPv4 and IPv6?
IPv6 has a 32-bit address space and uses binary notation.
IPv4 has a 32-bit address space and uses decimal notation, while IPv6 has a 128-bit address space and uses hexadecimal notation.
IPv4 and IPv6 both use decimal notation and have the same address space.
IPv4 uses hexadecimal notation and has a 64-bit address space.
What security protocols are commonly used in wireless networks?
SSL, TLS, HTTPS
WEP, WPA, WPA2, WPA3
IPSec, L2TP, PPTP
FTP, SFTP, SCP
