Networking Concepts Chapter 7

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Questions and Answers

What is the preferred method of accessing the Internet?

Cellular access

Satellite Internet

Dial-up access

Broadband (correct)

Which of the following technologies is NOT a standard wired broadband technology?

Satellite (correct)

Cable

Fiber-optic

DSL

What do you need to establish WiFi on your home network?

A router (correct)

A desktop computer

An ISP modem

A network switch

Why is it best for all network nodes in a home network to use the latest Ethernet standard?

To provide the fastest experience Signup and view all the answers

Which router is designed by Apple to optimize performance with Apple computers?

AirPort Express Signup and view all the answers

What is the maximum range of Wi-Fi 4 or Wi-Fi 5 wireless devices?

350 feet Signup and view all the answers

Which of the following is a device designed for centralized data storage and access in a home network?

Network-attached storage (NAS) Signup and view all the answers

What type of connectivity plan must you have for mobile broadband?

Data plan Signup and view all the answers

What is most likely to interfere with wireless signals?

Large metal objects Signup and view all the answers

What is the role of a switch in a network?

To manage data traffic Signup and view all the answers

What is the primary disadvantage of setting up a computer network?

Time-consuming setup process Signup and view all the answers

Which of the following describes a personal area network (PAN)?

A network used for communication among devices close to one person Signup and view all the answers

What term describes the maximum speed data can be transmitted in a network?

Bandwidth Signup and view all the answers

Which of the following is NOT a benefit of having computers networked?

Fewer compatibility issues between devices Signup and view all the answers

What does throughput measure in a network?

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

Which type of network is specifically designed for a home?

Home area network (HAN) Signup and view all the answers

What is the role of a node in a computer network?

To represent any connected device in the network Signup and view all the answers

What should be considered before creating a home network?

Security measures and network requirements Signup and view all the answers

What is the purpose of network devices such as routers?

To connect different networks and manage data traffic Signup and view all the answers

Which of the following is true regarding broadband options for accessing the Internet?

They often include DSL, cable, and fiber optics. Signup and view all the answers

What is a distinguishing characteristic of a client/server network?

Client computers make requests to a centralized server. Signup and view all the answers

What type of network is most commonly used in home settings?

Peer-to-peer network Signup and view all the answers

Which of the following is a feature of Ethernet?

It is developed by the Institute of Electrical and Electronics Engineers (IEEE). Signup and view all the answers

What is the primary purpose of a modem in a broadband connection?

To translate signals into digital form. Signup and view all the answers

Which transmission media is made of glass or plastic fibers?

Fiber-optic cable Signup and view all the answers

What functionality does a router provide in a network?

Transfers packets of data between networks. Signup and view all the answers

Why do client/server networks require more complex software?

Because they necessitate server-side network operating systems. Signup and view all the answers

Which hardware device acts like a traffic signal in a network?

Switch Signup and view all the answers

What is one of the main benefits of setting up a network?

Sharing of an Internet connection. Signup and view all the answers

Which of the following accurately describes the role of a network adapter?

Allows nodes to connect to a network. Signup and view all the answers

Study Notes

Chapter 7: Networking: Connecting Computing Devices

This chapter covers networking concepts, including network types, transmission media, hardware, software, and Internet access methods.
Learning objectives outline key topics to be studied.
Computer networks connect two or more computers to communicate via software and hardware.
Each device on a network ("node") can be a computer, peripheral (like a printer), or network device (such as a router).
Network benefits include sharing high-speed Internet connections, printers, files, and enabling common communication.
A major network disadvantage is setup time.
Data transfer rate (bandwidth) is the maximum speed data can be transmitted.
Throughput is the actual speed data is transferred, measured in megabits per second (Mbps) or gigabits per second (Gbps).
Networks are categorized by distance (PAN, LAN, HAN, MAN, WAN).
PANs are for personal communication, LANs for small areas (like a home), HANs are LANs in homes, MANs for cities, and WANs for larger areas.
Networks are also classified by administration levels (client/server and peer-to-peer).
Client/server networks use centralized servers for information and resource access.
Peer-to-peer networks allow direct communication between all nodes.
Network protocols, like Ethernet (wired and wireless—Wi-Fi, gigabit Ethernet), are developed by organizations like IEEE.
Backward compatibility allows current devices to use standards from previous generations.
Network components include connections (cables or wireless), hardware to enable communication, and software for network operations.
Transmission media establish a network's communications channel (wired or wireless).
Wired options include UTP, coaxial, and fiber-optic cables.
Basic network hardware includes network adapters (NICs), modems (for converting signals), routers (controlling data flow between networks), and switches (traffic control within a network).
Network software includes operating systems for different networking types (P2P, client/server). P2P networks require software that supports P2P. Client/server networks need software, often called "NOS" software, on servers that allow the server to function properly.
Broadband Internet access is commonly used (cable, DSL, fiber), contrasted with dial-up or cellular.

Planning and Installing a Home Network

Planning a home network includes listing devices, using the latest networking standards, and using new equipment.
Home networks typically use routers for central connection and switches for managing traffic within the network.
Specialized devices like NAS devices (network-attached storage) are common for centralized data storage and management.
Home network servers centralize file storage and sharing.
Troubleshooting wireless problems involves understanding signal range, sources of interference (walls, metal), placement of access points, and utilizing wireless range extenders.

Securing a Wireless Network

Securing wireless networks is vital. Key steps include encryption, changing the network name (SSID), disabling SSID broadcast, changing default passwords, setting up complex passphrases, and implementing media access control (MAC).
Consider limiting the signal range to help secure the network.
Regularly updating router firmware is important to patch vulnerabilities.
Disabling remote access helps limit unauthorized access.

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Description

Explore the essential networking concepts covered in Chapter 7. This chapter delves into different network types, transmission media, hardware, and software involved in connecting computing devices. Understand the benefits and disadvantages of networks, along with key terms like bandwidth and throughput.