Podcast
Questions and Answers
Which of the following options best describes a node in a computer network?
Which of the following options best describes a node in a computer network?
- A specific type of cable used for data transmission
- Any device that is connected to the network (correct)
- A software program that manages network traffic
- A device that connects multiple networks together
What distinguishes a WAN from a LAN?
What distinguishes a WAN from a LAN?
- WANs operate over larger distances compared to LANs (correct)
- LANs can only connect devices within a single building
- LANs are typically less expensive to establish than WANs
- WANs require fiber optic cables, while LANs use copper cables
Which of the following is not a characteristic used to classify network architectures?
Which of the following is not a characteristic used to classify network architectures?
- Cost to establish (correct)
- Communications medium used
- How managed
- Distance
Which type of network is designed for connecting devices within a single home?
Which type of network is designed for connecting devices within a single home?
Which component serves as the means of connecting nodes in a network?
Which component serves as the means of connecting nodes in a network?
What is the primary function of a Network Interface Card (NIC)?
What is the primary function of a Network Interface Card (NIC)?
Which type of broadband connection uses coaxial cables for data transmission?
Which type of broadband connection uses coaxial cables for data transmission?
What characteristic distinguishes a dual-band N router?
What characteristic distinguishes a dual-band N router?
What is the role of a modem in broadband connectivity?
What is the role of a modem in broadband connectivity?
Which of the following statements about Network-Attached Storage (NAS) devices is accurate?
Which of the following statements about Network-Attached Storage (NAS) devices is accurate?
In what context is mobile broadband primarily utilized?
In what context is mobile broadband primarily utilized?
What distinguishes DSL from other wired broadband technologies?
What distinguishes DSL from other wired broadband technologies?
What is a primary difference between wired and wireless networks in terms of security?
What is a primary difference between wired and wireless networks in terms of security?
Which component is primarily responsible for transferring packets between different networks?
Which component is primarily responsible for transferring packets between different networks?
Which type of connection is typically categorized as a slow broadband option?
Which type of connection is typically categorized as a slow broadband option?
Flashcards
What is a computer network?
What is a computer network?
A group of two or more computers connected to communicate with each other.
What is a node in a network?
What is a node in a network?
Any device connected to a network, including computers, peripherals like printers, and network devices like routers.
What are the benefits of computer network resource sharing?
What are the benefits of computer network resource sharing?
Sharing resources like high-speed internet, peripherals, files, and communication channels across connected computers.
What are the types of network architectures?
What are the types of network architectures?
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What are the main components of a network?
What are the main components of a network?
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What is a network adapter?
What is a network adapter?
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What are the three main categories of network components?
What are the three main categories of network components?
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What is a packet?
What is a packet?
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What is the role of a router?
What is the role of a router?
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What is a network operating system (NOS)?
What is a network operating system (NOS)?
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How do you connect to the internet?
How do you connect to the internet?
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What are the types of broadband internet connections?
What are the types of broadband internet connections?
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What is a wireless range extender?
What is a wireless range extender?
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Why is a wired network more secure than a wireless one?
Why is a wired network more secure than a wireless one?
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What is a firewall?
What is a firewall?
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Study Notes
Networking Fundamentals
- A computer network connects two or more computers for communication.
- Each device on a network is called a node.
- Peripherals like printers and game consoles can be part of a network.
- Networked computers facilitate high-speed internet access, file sharing, and peripheral device use.
Network Architectures
- Networks are categorized based on distance, management, data exchange rules, and communication methods.
- Wide Area Network (WAN) covers a large geographical area.
- Metropolitan Area Network (MAN) encompasses a city or large town.
- Local Area Network (LAN) connects devices within a limited area like a home or office.
- Home Area Network (HAN) connects devices within a home.
- Personal Area Network (PAN) connects devices close to a person, like Bluetooth devices.
Network Components
- Transmission media (cables and wireless technology) connect network nodes.
- Hardware components enable communication between nodes and data transfer.
- Software allows the network to function properly.
Transmission Media
- Wired networks: use UTP cables (Category 5e, 6, and 6a).
- Wireless networks.
Basic Network Hardware
- Network adapters (NICs) connect devices to the network.
- Modems translate data signals.
- Routers forward data packets between networks.
- Switches connect devices within a network.
Network Software
- Operating systems enable networking functions like P2P communication and centralized server access.
Network Navigation Devices
- Routers transfer data packets between networks.
Home Networks
- Home networks often use specialized network operating systems (NOS).
Connecting to the Internet
- Home networks share internet access via Internet Service Providers (ISPs)
- Broadband (cable, DSL, fiber, satellite, and mobile) are common internet connection types.
Broadband Internet Connections
- Standard broadband, Satellite, and mobile broadband connections all connect to the internet.
Wired Broadband Internet Connection
- Cable, DSL, and fiber optic services are examples.
Wireless Internet Access
- Wi-Fi, mobile, and in-flight internet allow wireless connectivity.
Installing and Configuring Home Networks
- Connecting devices to a router
- Using NAS (Network-Attached Storage) devices.
- Specialised home networking devices - digital picture frames, wireless cameras.
Troubleshooting Wireless Networks
- Dual-band N routers offer enhanced wireless performance.
- Extending wireless range with extenders.
Securing Wireless Networks
- Using firewalls protects networks from unauthorized access.
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