Networking Today - Module 1 Quiz
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Questions and Answers

What type of cables use electrical impulses for communication?

  • Fiber-optic cables
  • Metal wires within cables (correct)
  • Twisted pair cables
  • Coaxial cables

Which type of diagram shows the physical arrangement of devices and cables in a network?

  • Network interface diagram
  • Physical topology diagram (correct)
  • Port mapping diagram
  • Logical topology diagram

Which statement correctly describes wireless transmission?

  • Uses modulation of electromagnetic waves (correct)
  • Involves only infrared signals
  • Relies solely on fiber optics
  • Uses electrical impulses

In networking terminology, what do the terms 'port' and 'interface' refer to?

<p>Terms that are used interchangeably (A)</p> Signup and view all the answers

What is the main purpose of network diagrams?

<p>To represent network devices and their connections visually (D)</p> Signup and view all the answers

Which of the following best describes the role of hosts in a network?

<p>They are computers that serve as end devices on the network. (B)</p> Signup and view all the answers

Which of the following is NOT a type of network mentioned?

<p>Local Network Interface (A)</p> Signup and view all the answers

How do trends like BYOD and cloud computing influence networking?

<p>They facilitate increased collaboration and connectivity. (B)</p> Signup and view all the answers

What is typically true about Small Office/Home Office (SOHO) networks?

<p>They help connect to a corporate network from home. (B)</p> Signup and view all the answers

What is a characteristic of reliable networks?

<p>Ability to automatically recover from failures. (B)</p> Signup and view all the answers

Which of the following best describes the World Wide Network category?

<p>Connects hundreds of millions of computers globally (A)</p> Signup and view all the answers

What is the importance of understanding network topologies?

<p>It is crucial for designing the physical layout of networks. (B)</p> Signup and view all the answers

Which of the following statements reflects how networks connect us?

<p>Networks facilitate instant communication without physical boundaries. (C)</p> Signup and view all the answers

Identifying basic security threats in networks is crucial because:

<p>Security threats can lead to loss of data and network access. (D)</p> Signup and view all the answers

What is a common type of network characteristic people should be aware of?

<p>Differences in the data transfer speeds among network devices. (C)</p> Signup and view all the answers

Which of the following describes the impact of networks on daily life?

<p>They provide platforms for enhanced collaboration and information sharing. (D)</p> Signup and view all the answers

What is the primary purpose of a Local Area Network (LAN)?

<p>To provide high-speed bandwidth over a limited area (A)</p> Signup and view all the answers

Which of the following statements about Wide Area Networks (WANs) is correct?

<p>WANs can span across large geographical distances. (C)</p> Signup and view all the answers

What best describes the Internet?

<p>A global network of interconnected LANs and WANs (B)</p> Signup and view all the answers

What is the function of an extranet?

<p>To grant secured access to external users authorized by organizations (C)</p> Signup and view all the answers

Which organization is NOT associated with maintaining the structure of the Internet?

<p>W3C (B)</p> Signup and view all the answers

What is one of the main characteristics a reliable network architecture must address?

<p>Fault Tolerance (C)</p> Signup and view all the answers

What distinguishes an intranet from the Internet?

<p>An intranet is a private network accessible to authorized members only (C)</p> Signup and view all the answers

Which technique is used in fault-tolerant networks to provide redundancy?

<p>Packet switching (A)</p> Signup and view all the answers

How do LANs connect with each other?

<p>By establishing connections via WANs (B)</p> Signup and view all the answers

Which of the following is NOT a feature of WANs?

<p>They are managed by a single organization (C)</p> Signup and view all the answers

What does a scalable network capability allow for?

<p>Rapid expansion without performance loss (B)</p> Signup and view all the answers

What is the primary mechanism to ensure reliable delivery of content in a network?

<p>Quality of Service (QoS) (C)</p> Signup and view all the answers

What impact does QoS have on voice and video transmissions?

<p>Reduces packet loss (C)</p> Signup and view all the answers

What is the main difference between packet-switched and circuit-switched networks in terms of redundancy?

<p>Packet-switched networks allow multiple paths for data (A)</p> Signup and view all the answers

What is one consequence of not configuring Quality of Service (QoS) properly?

<p>Frequent interruptions in live video (A)</p> Signup and view all the answers

Why is following accepted standards and protocols important in network design?

<p>To ensure scalability (D)</p> Signup and view all the answers

What does BYOD stand for in the context of technology?

<p>Bring Your Own Device (D)</p> Signup and view all the answers

Which of the following is NOT an example of a device used in BYOD?

<p>Desktop computers (A)</p> Signup and view all the answers

Which collaboration tool is mentioned as a way to connect and interact?

<p>Cisco WebEx (B)</p> Signup and view all the answers

What is a critical requirement for effective collaboration according to the content?

<p>Video Communication (B)</p> Signup and view all the answers

Which statement accurately describes cloud computing?

<p>It enables storage of personal files on internet servers. (A)</p> Signup and view all the answers

What is the purpose of Cisco TelePresence?

<p>To enable video calls between distant participants. (A)</p> Signup and view all the answers

Why might smaller companies choose to use cloud computing?

<p>To avoid the costs of maintaining their own data centers. (D)</p> Signup and view all the answers

Which of the following is considered a priority for businesses and education regarding collaboration?

<p>Remote Collaboration Tools (C)</p> Signup and view all the answers

What primary knowledge does the CCNA certification demonstrate?

<p>Foundational technologies in networking (B)</p> Signup and view all the answers

Which new technological focus areas are included in the CCNA certification?

<p>Wireless, virtualization, automation, and network programmability (A)</p> Signup and view all the answers

What is the purpose of specialist certifications in the Cisco certification program?

<p>To validate skills aligned with specific job roles and interests (C)</p> Signup and view all the answers

What is the function of the Talent Bridge Matching Engine?

<p>To connect job seekers with employment opportunities (B)</p> Signup and view all the answers

What benefit do networking job seekers gain by visiting netacad.com?

<p>Job opportunities with Cisco and partners (C)</p> Signup and view all the answers

How are hosts classified in a network?

<p>Computers that connect and communicate in the network (C)</p> Signup and view all the answers

What is one of the purposes of diagrams in networking?

<p>To simplify the understanding of device connections (D)</p> Signup and view all the answers

What is highlighted as necessary for IT professionals regarding their skills?

<p>Keeping relevant with next-generation technologies (D)</p> Signup and view all the answers

Flashcards

Network Components

Components include both end devices (hosts) and network devices that enable communication.

End Devices/Hosts

Computers or other devices on a network that send and receive information.

Network

A system of interconnected devices that share information.

Networks Affect Lives

Networks are vital for modern communication, connecting us globally.

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Network Communication

The process of sharing information between devices on a network.

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Host Roles

describes the function of a device as a sender or receiver in a network

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Interconnections

How devices are linked together to form a network

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Network Devices

Hardware that facilitates connections and data flow between devices. Examples include routers, switches.

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Media Types

Different ways data travels in a network (like wires, fibers, or radio waves).

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Metal Wires

Electrical impulses carry data over metal wires in cables.

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Fiber-Optic Cable

Data travels as light pulses in glass or plastic fibers.

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Wireless Transmission

Electromagnetic waves carry data wirelessly.

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Network Diagrams

Visual representations of devices and connections in a network.

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Physical Topology

Shows the physical layout of network devices and cables.

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Home Networks

Connect a few computers or devices together and to the Internet.

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Large Networks

Connect thousands of computers in many locations and across the world.

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LAN

A network covering a small geographical area, connecting devices within a limited space.

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WAN

A network that covers a large geographical area, connecting LANs over wide distances.

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Internet

A global network of interconnected LANs and WANs.

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Intranet

A private network within an organization, accessible only to authorized members.

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Extranet

A network that allows authorized external users from other organizations to access some parts of a network.

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Network Infrastructure

The physical components and the rules for how different networks communicate.

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IETF

Internet Engineering Task Force

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ICANN

Internet Corporation for Assigned Names and Numbers

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Fault Tolerance

A network characteristic limiting the impact of a failure by limiting affected devices, often using redundant paths.

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BYOD

Bring Your Own Device; allows employees to use personal devices (laptops, tablets, smartphones, etc.) for work.

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Packet Switching

Dividing data into packets for routing across a network; each packet can take a unique path.

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Online Collaboration

Working together with others over a network on projects using tools like WebEx.

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Video Communication

Making video calls across distances.

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Scalability

A network's ability to easily expand to support new users and applications without impacting existing users.

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Quality of Service (QoS)

Ensuring reliable data delivery for specific types of traffic (e.g., voice, video).

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Cloud Computing

Storing files and accessing apps on remote servers via internet.

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Collaboration tools

Software applications that facilitate interaction and work sharing in networks.

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Circuit Switching

Establishing a dedicated circuit for communication; each packet follows the same route

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Network Architecture

The technologies supporting the infrastructure that moves data across a network.

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Cisco WebEx

A collaboration tool that allows instant connection and interaction.

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Cisco TelePresence

A video conferencing system that connects people from different locations.

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Impact of Failures

The consequences experienced when network components fail.

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Data Centers

Physical facilities that house servers and storage for cloud services.

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Network Standards/Protocols

Rules and guidelines used by network designers to maintain scalability.

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CCNA Certification

A Cisco certification demonstrating foundational networking knowledge and relevant skills for next-generation technologies.

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Hosts (networks)

Computers or devices directly communicating on a network.

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Network Diagrams

Visual representations of network devices and connections.

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Job Opportunities (Networking)

Finding work in networking and related fields.

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Talent Bridge Matching Engine

A tool to match job seekers with open positions at Cisco and partners.

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Networking Academy

A program that trains students for careers in networking.

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IT Job Research

The process of looking for job openings and relevant skills in the IT field.

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Module Practice and Quiz

Activities and assessments within a module to test understanding of learned concepts.

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Study Notes

Module 1: Networking Today

  • This module introduces networks in modern technologies.
  • Communication is almost as important as basic necessities.
  • Networks connect the world like never before.
  • Networks have advanced greatly in modern times.

Module Objectives

  • Explain advances in modern technologies.

Topic Titles and Objectives

  • Networks Affect Our Lives: Explains how networks affect daily life.
  • Network Components: Explains how host and network devices are used.
  • Network Representations and Topologies: Explains network representations and use in topologies.
  • Common Types of Networks: Compares characteristics of common network types.
  • Internet Connections: Explains how LANs and WANs connect to the internet.
  • Reliable Networks: Describes four basic requirements for a reliable network.
  • Network Trends: Explains how trends like BYOD, collaboration, video, and cloud change interactions.
  • Network Security: Identifies security threats and solutions for all networks.
  • The IT Professional: Explains employment opportunities in the networking field.

1.1 Networks Affect Our Lives

  • Networks impact daily life significantly.

1.2 Network Components - Host Roles

  • Computers on a network are called hosts or end devices.
  • Servers provide information to end devices.
  • Servers include email servers, web servers and file servers.
  • Clients request information from servers.
  • Web page from a web server.
  • Email from an email server.
  • Types of Servers:
  • Email: Runs email server software; clients use client software to access email.
  • Web: Runs web server software; clients use browser software to access web pages.
  • File: Stores corporate and user files; client devices access these files.
  • Peer-to-Peer Networks:
  • Devices can be both clients and servers.
  • Suitable for small networks.
  • Advantages: Easy setup, less complex, lower cost.
  • Disadvantages: No centralized administration, not as secure, not scalable, slower performance.

1.2 Network Components - End Devices

  • End devices originate and receive messages.
  • Data flows through the network between end devices.
  • Data can take alternate routes throughout the network.

1.2 Network Components - Intermediary Devices

  • Intermediary devices interconnect end devices.
  • Examples: Switches, wireless access points, routers, and firewalls.
  • Management of data as it flows through the network:
  • Regenerate and retransmit data signals.
  • Maintain information about paths.
  • Notify other devices of errors and failures.

1.3 Network Representations and Topologies

  • Network diagrams (topology diagrams) use symbols to represent devices in a network.
  • Important terms:
  • Network Interface Card (NIC)
  • Physical Port
  • Interface
  • Topology Diagrams
  • Illustrate physical locations of intermediary devices and cable installation.
  • Illustrate devices, ports, and addressing scheme.

1.4 Common Types of Networks

  • Network infrastructures vary greatly in terms of:
  • Area covered
  • Number of users
  • Services available
  • Responsibility
  • Common types of networks:
  • Small Home: Connects a few computers to each other and the internet.
  • SOHO: Enables computers in a home or remote office to connect to a corporate network.
  • Medium/Large: Networks with hundreds or thousands of interconnected computers.
  • World Wide: Connects hundreds of millions of computers globally (e.g., the internet).

1.5 Internet Connections

  • The internet is a collection of interconnected LANs and WANs.
  • WANs use copper wires, fiber optic cables, and wireless transmissions to connect LANs.
  • Internet is not owned by any individual or group.
  • Organizations manage structure on the internet:
  • IETF
  • ICANN
  • IAB

1.6 Reliable Networks

  • Network Architecture: Refers to the technologies that support the infrastructure for moving data.
  • Reliable Networks: Have four basic characteristics
  • Fault Tolerance: Limits the impact of a failure by using multiple paths.
  • Packet switching splits traffic into packets, allowing each packet to take a different route.
  • Scalability: Can expand quickly and easily to support new users and applications without impacting existing users.
  • Network designers follow accepted standards and protocols.
  • Quality of Service (QoS): Ensures reliable delivery of content.
  • QoS manages priorities for data and voice traffic.
  • Security: Protects the network from unauthorized access.
  • Implemented through multiple layers.
  • Network trends affect organizations and consumers.
  • BYOD: Users using their own devices.
  • Online Collaboration: Tools (e.g., Cisco Webex) for users to instantly connect.
  • Video Communications: Video calls, video conferencing, and collaboration tools.
  • Cloud Computing: Storing and accessing data and applications on servers over the internet.
  • Allows companies to deliver services to any device.

1.8 Network Security

  • Network security is an integral part for any network.
  • The network should address and protect the network environment.
  • Goal(s):
  • Confidentiality: Only intended recipients can access the data.
  • Integrity: Ensure data hasn't been altered during transmission.
  • Availability: Ensure timely and reliable access for authorized users.

1.9 The IT Professional

  • Cisco Certified Network Associate (CCNA) Certification:
  • Demonstrates knowledge of foundational networking technologies.
  • New CCNA Focus:
  • IP foundations and security topics, wireless, virtualization, automation, and network programmability.
  • DevNet Certifications: Associate, Specialist, and Professional levels validate skills and software development.
  • Networking Jobs: Available at www.netacad.com

1.10 Module Practice and Quiz

  • Key concepts learned in this module.
  • Networks for communication and participation.
  • Diagram of networks.
  • Two main network types: LANs and WANs
  • SOHO and Business internet connections.
  • Network Architecture characteristics (FT, Scalability, QoS, Security).
  • Recent Trends impacting Networks (BYOD, Collaboration, video, cloud computing).

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Related Documents

ITN Module 1: Networking Today PDF

Description

This quiz covers the key concepts from Module 1: Networking Today. It explores how modern networks influence our daily lives, the components that make up networks, and the various types of networks in use today. Test your understanding of network structures, security, and contemporary trends in networking.

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