Networking Chapter 7 Quiz

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Questions and Answers

Which type of Internet access is considered high-speed?

Dial-up

Cellular

Satellite

Broadband (correct)

What is necessary for wireless Internet access at home?

A modem

A data plan

A router (correct)

A desktop computer

What technology is commonly used for wired broadband connections?

Cellular

Fiber-optic (correct)

Dial-up

Satellite

What is a network-attached storage (NAS) device designed for?

Storing and managing network data Signup and view all the answers

Which of the following can impede wireless signal strength?

Distance from the router Signup and view all the answers

What is needed for mobile broadband access?

A wireless Internet service provider Signup and view all the answers

What is a major disadvantage of setting up a computer network?

Setup time Signup and view all the answers

What does the term 'throughput' refer to in networking?

The actual speed data is transferred Signup and view all the answers

Which type of network is designed for communication among devices close to one person?

Personal area network (PAN) Signup and view all the answers

What is the primary function of a server in a client/server network?

To provide information or resources to client computers Signup and view all the answers

Which of the following is NOT a benefit of having a computer network?

Increased setup complexity Signup and view all the answers

Which type of network allows each node to communicate directly with every other node?

Peer-to-peer (P2P) network Signup and view all the answers

How can different operating systems communicate on a network?

By using network protocols Signup and view all the answers

What does backward compatibility in networking refer to?

The ability to use earlier standards with newer devices Signup and view all the answers

What does 'data transfer rate' indicate in networking?

The maximum speed data can be transmitted Signup and view all the answers

A home area network (HAN) is a specific type of which network?

Local area network (LAN) Signup and view all the answers

Which media is not used in wired networks?

Microwave signals Signup and view all the answers

What should be considered before creating a home network?

The speed of the Internet connection Signup and view all the answers

What is the role of a router in a network?

To transfer packets of data between networks Signup and view all the answers

Which type of network provides access to a specific geographical area, such as an entire city?

Metropolitan area network (MAN) Signup and view all the answers

What is a node in a computer network?

A device connected to a network Signup and view all the answers

Why do client/server networks require more complex software?

To efficiently manage communication through a centralized server Signup and view all the answers

What is the primary purpose of establishing a network?

To share an Internet connection Signup and view all the answers

What type of network device acts like a traffic signal, controlling data flow?

Switch Signup and view all the answers

What is a packet in the context of data transmission?

A bundle of data sent over a network Signup and view all the answers

Study Notes

Chapter 7: Networking: Connecting Computing Devices

A computer network connects two or more computers to communicate.
Each device on a network is called a node.
Nodes can be computers, peripherals (printers, game consoles), or network devices (routers).

Learning Objectives

Describe computer networks and their pros and cons.
Explain different ways networks are defined.
Describe types of transmission media (wired and wireless).
Describe basic hardware devices necessary for networks (network adapters, modems, routers, switches).
Describe the type of software necessary for networks (operating systems for P2P and client/server).
Summarize broadband internet options.
Summarize how to access the internet wirelessly.
Explain factors to consider before creating a home network.
Describe how to set up a home network.
Describe potential wireless network problems and solutions.
Describe how to secure wireless home networks.

Networking Fundamentals: Understanding Networks

Benefits of networks:
- Sharing a high-speed Internet connection.
- Sharing printers and peripheral devices.
- Sharing files.
- Common communications.
Disadvantages of networks: Setup and administration.
How data moves through networks:
- Data transfer rate (bandwidth): maximum speed data can be transmitted.
- Throughput: actual speed data is transferred.
- Measured in megabits per second (Mbps) or gigabits per second (Gbps).

Network Architectures

Networks can be classified by distance:
- Personal area network (PAN): communication among devices close to one person.
- Local area network (LAN): nodes located within a small geographical area.
- Home area network (HAN): specific type of LAN, found in homes.
- Metropolitan area network (MAN): large network serving a city.
- Wide area network (WAN): spans a large physical distance.
Networks can be classified by levels of administration:
- Client/server network: clients request information/resources from a central server.
- Peer-to-peer (P2P) network: each node can communicate directly with every other node.
Networks are classified by protocols:
- Ethernet: developed by IEEE, includes wired (GbE) and wireless (Wi-Fi).
- Backward compatibility: ability of current devices to use earlier standards.

Network Components

Transmission Media:
- Establish a communications channel between nodes.
- Can be wired (UTP, coaxial, fiber-optic) or wireless.
Basic Network Hardware:
- Network Interface Card (NIC)
- Modem
- Router
- Switch
All networks need a method for connecting nodes, special hardware for communication, and software for operation.

Network Software

Operating system: supports networking features.
Client/server: special network operating system (NOS) software for network management.
P2P (Peer-to-Peer): operating system software is needed to support P2P networking.

Connecting to the Internet: Broadband Internet Connections

Broadband: high-speed internet types.
- Cable Internet
- DSL (Digital Subscriber Line)
- Fiber-optic
Other options: Cellular, dial-up.
ISPs (internet service providers) provide internet access.

Connecting to the Internet: Wireless Internet Access

Mobile broadband: WiFi at home, hotspots for mobile devices, access from wireless internet service providers (data plans).

Installing and Configuring Home Networks

Planning: List devices, use latest standards, use the latest equipment.
Connecting devices:
- Routers
- Switches -Specialized home networking devices (NAS, Home network servers, network-ready devices).

Troubleshooting Wireless Networks

Maximum Wi-Fi range: typically around 350 feet
Interference Sources: Walls, floors, large metal objects.
Signal Placement: Locate access points where the signal is weak.
Signal Extenders: Extend/boost weak signals using range extenders.

Managing and Securing Wireless Networks

Security protocols / encryption
Change Network Name (SSID):
Disable SSID Broadcast
Change the default password & create a passphrase
Implement Media Access Control (MAC): control access to the network.
Limit Signal Range: improve security.
Keep router firmware up-to-date: critical for security and functionality
Disable remote access: reduce the risk of unauthorized access.

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Description

Test your knowledge on computer networking concepts covered in Chapter 7. Learn about nodes, transmission media, and essential hardware and software for networks. This quiz will help you grasp the fundamentals of setting up and securing a home network.