CHAPTER 6 NETWORK COMMUNICATION
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Questions and Answers

What is the main focus of Chapter 6?

  • Communication channels and terminologies (correct)
  • Careers in IT
  • System software and network strategies
  • Trends in network
  • Which factor describes the data transmission speed and capacity?

  • Types of networks
  • Network interface cards and operating systems
  • Network architectures and topologies
  • Bandwidth and protocols (correct)
  • What type of network includes connections within a limited area, like an office building or a university campus?

  • Local area network (LAN) (correct)
  • Wide area network (WAN)
  • Metropolitan area network (MAN)
  • Personal area network (PAN)
  • What does system software mainly focus on?

    <p>Network architectures and strategies</p> Signup and view all the answers

    What is a key aspect related to Internet technologies and network security?

    <p>Organization issues</p> Signup and view all the answers

    Which element indicates the impact of increased productivity in business due to increased connectivity?

    <p>Wireless revolution</p> Signup and view all the answers

    What is the primary focus of multi cloud policy management?

    <p>Ensuring consistent network and security policies across multiple clouds</p> Signup and view all the answers

    What is the main goal of digital transformation?

    <p>Adopting digital technology to transform services or businesses</p> Signup and view all the answers

    What is the principal objective of Internet of Things (IoT)?

    <p>Connecting the unconnected</p> Signup and view all the answers

    What is the crucial factor for data security?

    <p>Usability and integrity of the network</p> Signup and view all the answers

    What does DevOps primarily tie up to?

    <p>Software development and IT</p> Signup and view all the answers

    What does digital transformation aim to replace?

    <p>Manual processes with digital processes</p> Signup and view all the answers

    What is the role of a firewall in network security?

    <p>Controls access to the network and protects against external threats</p> Signup and view all the answers

    What is the main characteristic of Wi Fi 6 technology?

    <p>Increased speed and reduced latency in wireless services</p> Signup and view all the answers

    What is the primary function of a proxy server in network security?

    <p>Provides pass-through access and controls network traffic</p> Signup and view all the answers

    What is the purpose of DNS (Domain Name Service) in networking?

    <p>Resolves IP addresses to names</p> Signup and view all the answers

    What is the role of an Intrusion Detection System (IDS) in network security?

    <p>Analyzes all incoming and outgoing network traffic</p> Signup and view all the answers

    What type of network topology uses a common cable called a bus or backbone?

    <p>Bus Network</p> Signup and view all the answers

    What does TCP/IP stand for in computer networking?

    <p>Transmission Control Protocol/Internet Protocol</p> Signup and view all the answers

    What is the primary function of a router in a network?

    <p>Forwards or routes data packets</p> Signup and view all the answers

    Which type of network architecture requires that each node has more than one connection to other nodes?

    <p>Mesh Network</p> Signup and view all the answers

    What are the main characteristics of 5G technology?

    <p>Increased speed, reduced latency, and improved flexibility in wireless services</p> Signup and view all the answers

    What is the primary responsibility of a Network Administrator?

    <p>Manages LAN and WAN networks, maintaining networking hardware and software</p> Signup and view all the answers

    How do Peer-to-Peer (P2P) networks differ from Client/Server networks?

    <p>All nodes have equal authority and can act as both client and server</p> Signup and view all the answers

    What does a modem primarily do in a communication system?

    <p>Convert from digital to analog</p> Signup and view all the answers

    What is the primary function of connectivity in computer networks?

    <p>Link people and resources</p> Signup and view all the answers

    Which type of cable is known to be faster and more reliable than coaxial cable?

    <p>Fiber-optic cable</p> Signup and view all the answers

    In wireless connections, what do most systems use to communicate?

    <p>Radio waves</p> Signup and view all the answers

    What is the primary role of Bluetooth in wireless technology?

    <p>Short-range radio communication</p> Signup and view all the answers

    Which connection service is slower than DSL and cable modem but can be used almost anywhere?

    <p>Satellite connection services</p> Signup and view all the answers

    What do leased lines combined to form T3 and DS3 provide as compared to OC lines?

    <p>Higher capacity</p> Signup and view all the answers

    Which type of cable is known to be faster and more reliable than coaxial cable?

    <p>Fiber-optic cable</p> Signup and view all the answers

    Study Notes

    Chapter 6 Focus

    • Main focus involves various aspects of networking, including data transmission, security, and system software.

    Data Transmission Speed and Capacity

    • Data transmission speed and capacity are primarily described by bandwidth, which indicates the maximum data transfer rate of a network.

    Local Area Network (LAN)

    • A network that includes connections within a limited area, such as an office building or university campus.

    System Software

    • Mainly focuses on managing hardware and providing a platform for applications to run.

    Internet Technologies and Network Security

    • A key aspect includes implementing encryption methods to protect data transmitted over the internet.

    Impact of Increased Connectivity

    • Increased productivity in business can be indicated by enhancements in collaboration and communication efficiency.

    Multi-Cloud Policy Management

    • Primary focus is on managing and optimizing the use of multiple cloud services effectively and ensuring compliance with policies.

    Digital Transformation Goal

    • Main goal is to leverage digital technologies to fundamentally change how businesses operate and deliver value to customers.

    Internet of Things (IoT) Objective

    • Principal objective is to connect various devices and systems to collect and exchange data, enabling smarter operations.

    Data Security Factor

    • Crucial factor for data security includes robust authentication mechanisms to ensure that only authorized users can access sensitive information.

    DevOps Connection

    • Primarily ties up to combining software development (Dev) and IT operations (Ops) to enhance collaboration and productivity.

    Digital Transformation Replacement

    • Aims to replace outdated business processes with digitally enabled systems and applications.

    Firewall Role in Network Security

    • Acts as a barrier between trusted internal networks and untrusted external networks, controlling incoming and outgoing traffic based on security rules.

    Wi-Fi 6 Technology

    • Main characteristic of Wi-Fi 6 is its ability to support more devices simultaneously and provide faster speeds with lower latency.

    Proxy Server Function

    • Primary function is to act as an intermediary between clients and servers, enhancing security and privacy by masking client IP addresses.

    DNS Purpose in Networking

    • Domain Name Service (DNS) translates domain names into IP addresses, allowing users to access websites using easy-to-remember names.

    Intrusion Detection System (IDS) Role

    • Monitors network traffic for suspicious activities and alerts administrators about potential security breaches.

    Bus Topology

    • A type of network topology that uses a common cable called a bus or backbone for connecting all devices in the network.

    TCP/IP Definition

    • Stands for Transmission Control Protocol/Internet Protocol, which is the suite of communication protocols used for connecting devices on the internet.

    Router Function in a Network

    • Primary function is to route data packets between different networks, directing traffic along the most efficient paths.

    Network Architecture Requirement

    • Requires each node to have multiple connections to other nodes, which is characteristic of mesh topology.

    5G Technology Features

    • Main characteristics include ultra-fast data speeds, reduced latency, and the ability to connect a massive number of devices simultaneously.

    Network Administrator Responsibilities

    • Primary responsibility includes maintaining network performance, security, and troubleshooting connectivity issues.

    Peer-to-Peer (P2P) vs. Client/Server Networks

    • P2P networks allow direct communication between nodes without a centralized server, while Client/Server networks depend on a dedicated server to manage resources.

    Modem Function

    • Primarily converts digital signals from a computer into analog signals for transmission over communication lines and vice versa.

    Connectivity Role in Computer Networks

    • Primary function is to enable devices to communicate and share resources effectively.

    Faster Cable Type

    • Fiber optic cable is known to be faster and more reliable than coaxial cable.

    Wireless Communication Systems

    • Most systems use radio waves to communicate in wireless connections.

    Bluetooth Role

    • Primary role is to connect devices wirelessly over short distances, enabling data transfer and communication.

    Connection Services

    • DSL is slower than cable modem but can be used almost anywhere due to its simplicity and reliance on existing telephone lines.

    Leased Lines vs. OC Lines

    • Leased lines combined to form T3 and DS3 provide dedicated high-speed data connections, offering greater bandwidth reliability compared to OC lines.

    High-Reliability Cable

    • Fiber optic cable is recognized for its speed and reliability over traditional coaxial cables.

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