Network Basics: Servers and Peer-to-Peer Networks
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Questions and Answers

Which medium uses electrical impulses for communication?

  • Glass or plastic fibers
  • Wireless transmission
  • Fiber-optic cable
  • Metal wires within cables (correct)
  • What do topology diagrams typically illustrate in a network?

  • Only the physical location of devices
  • Only the logical addressing scheme
  • The physical location and cable installation of intermediary devices (correct)
  • The types of media used for communication
  • What is the primary difference between physical and logical topology diagrams?

  • There is no difference; both illustrate network devices the same way.
  • Physical diagrams represent cable types, while logical diagrams illustrate network traffic patterns.
  • Physical diagrams show addressing protocols, while logical diagrams show device locations.
  • Physical diagrams illustrate device locations and installation, while logical diagrams illustrate device addressing. (correct)
  • Which term is interchangeable with 'port' in networking terminology?

    <p>Interface</p> Signup and view all the answers

    Which type of medium uses pulses of light for communication?

    <p>Optical fiber cables</p> Signup and view all the answers

    What is one primary function of an email server?

    <p>To run email server software for client access</p> Signup and view all the answers

    What describes an advantage of a Peer-to-Peer network?

    <p>Lower cost of implementation</p> Signup and view all the answers

    Which of the following is NOT a type of intermediary network device?

    <p>Email client</p> Signup and view all the answers

    What best defines an end device in a network?

    <p>A device where messages originate or terminate</p> Signup and view all the answers

    What is a disadvantage of Peer-to-Peer networks?

    <p>Lack of centralized administration</p> Signup and view all the answers

    What is a function of intermediary network devices?

    <p>Regenerate and retransmit data signals</p> Signup and view all the answers

    Which of the following describes file servers accurately?

    <p>They store corporate and user files for access.</p> Signup and view all the answers

    What is a common use case for Peer-to-Peer networks?

    <p>Transferring files and sharing printers</p> Signup and view all the answers

    What is a major benefit of satellite internet connections?

    <p>Availability in rural areas without ISPs</p> Signup and view all the answers

    What type of connection provides dedicated circuits within a service provider's network?

    <p>Leased Line</p> Signup and view all the answers

    Which technology allows businesses to extend LAN access into the WAN?

    <p>Ethernet</p> Signup and view all the answers

    What was a requirement for organizations before converged networks?

    <p>Separate cabling for data, voice, and video</p> Signup and view all the answers

    What do converged data networks carry over one link?

    <p>Data, voice, and video</p> Signup and view all the answers

    Which option describes a modem's function in dial-up connections?

    <p>Connects a telephone line to a network</p> Signup and view all the answers

    What is one characteristic of DSL internet connections?

    <p>Offers an always-on connection</p> Signup and view all the answers

    Which of the following describes the relationship between the technology used in converged networks?

    <p>Same set of rules and standards for all technologies</p> Signup and view all the answers

    What does the CCNA certification primarily demonstrate?

    <p>Knowledge of foundational technologies</p> Signup and view all the answers

    Which of the following topics is the new CCNA focused on?

    <p>IP foundation and security topics</p> Signup and view all the answers

    What is the purpose of the Specialist certification?

    <p>To certify skills related to specific job roles</p> Signup and view all the answers

    What type of skills do the new DevNet certifications validate?

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

    How can students find employment opportunities related to the Cisco Networking Academy?

    <p>By using the Talent Bridge Matching Engine</p> Signup and view all the answers

    Which of the following is NOT classified as an external threat?

    <p>Malicious employees</p> Signup and view all the answers

    What is a primary purpose of firewalls in network security?

    <p>To monitor network traffic for unauthorized access</p> Signup and view all the answers

    Which of these security solutions is specifically used for smaller networks?

    <p>Antivirus software</p> Signup and view all the answers

    Which security measure is considered an internal threat?

    <p>Accidental misuse by employees</p> Signup and view all the answers

    What is a feature of larger networks to enhance security?

    <p>Dedicated firewall systems</p> Signup and view all the answers

    Which of the following threats involves theft of personal information for fraudulent purposes?

    <p>Identity theft</p> Signup and view all the answers

    What kind of attack targets systems before the vendor knows of vulnerabilities?

    <p>Zero-day attacks</p> Signup and view all the answers

    Which of the following is a technique for preventing unauthorized access to a network?

    <p>Firewall filtering</p> Signup and view all the answers

    Study Notes

    Server Types

    • Servers are computers that provide information to end devices.
    • There are various types of servers, including email servers, web servers, and file servers.
    • Email servers run email server software and clients use client software to access emails.
    • Web servers run web server software and clients use browser software to access web pages.
    • File servers store corporate and user files, and client devices access these files.

    Peer-to-Peer Networks

    • A peer-to-peer network allows a device to be both a client and a server.
    • This design is recommended for small networks due to its ease of setup, lower cost, and simplicity.
    • Disadvantages of a peer-to-peer network include no centralized administration, lower security, and scalability limitations.
    • Peer-to-peer networks are suitable for simple tasks like transferring files and sharing printers.

    End Devices

    • End devices are the origin or destination of messages in a network.
    • Data originates from and arrives at end devices, flowing through the network in between.

    Intermediary Network Devices

    • Intermediary network devices connect end devices.
    • Examples include switches, wireless access points, routers, and firewalls.
    • These devices manage data flow, regenerate and retransmit signals, maintain network path information, and notify of errors.

    Network Media

    • Network media transmits message data across a network.
    • Types include metal wires within cables (electrical impulses), glass or plastic fibers within cables (fiber-optic, uses light pulses), and wireless transmission (modulation of specific electromagnetic frequencies).

    Network Representations

    • Network diagrams, often called topology diagrams, use symbols to represent devices within the network.
    • Important terms include Network Interface Card (NIC), Physical Port, and Interface.

    Topology Diagrams

    • Physical topology diagrams show the physical location of devices, cables, and intermediary devices.
    • Logical topology diagrams illustrate devices, ports, and the network addressing scheme.

    Common Types of Networks

    • Different types of networks include DSL (digital subscriber line), cellular, satellite, and dial-up.
    • DSL uses a telephone line for high-bandwidth, always-on internet access.
    • Cellular networks connect to the internet through cell phone networks.
    • Satellite connections offer a benefit to rural areas without internet service providers.
    • Dial-up is a low-bandwidth, inexpensive option using a modem and a telephone line.

    Business Internet Connections

    • Businesses may require higher bandwidth and dedicated connections for their internet needs.
    • Different types of connections include dedicated leased lines, Ethernet WAN, DSL, and satellite.
    • Dedicated leased lines provide reserved circuits within the service provider's network for private voice and data networking.
    • Ethernet WAN extends LAN access technology to the WAN.
    • Business DSL options include Symmetric Digital Subscriber Lines (SDSL).
    • Satellite connections offer service when wired solutions are unavailable.

    Converging Network

    • Before convergence, separate cables were used for telephone, video, and data, each using different technologies and standards.
    • Converged data networks carry multiple services, including data, voice, and video, over a single link and infrastructure.
    • The converged infrastructure utilizes the same set of rules and standards, simplifying management.

    Network Security Threats

    • External threats include viruses, worms, Trojan horses, spyware, adware, zero-day attacks, threat actors, denial-of-service attacks, data interception and theft, and identity theft.
    • Internal threats can arise from lost or stolen devices, accidental misuse by employees, and malicious employees.

    Network Security Solutions

    • Security solutions need to be implemented in multiple layers using various security tools.
    • Home or small office networks typically utilize antivirus and antispyware software, as well as firewall filtering to block unauthorized access.
    • Larger networks may require dedicated firewalls, access control lists (ACL), intrusion prevention systems (IPS), and virtual private networks (VPN).

    IT Professional

    • The Cisco Certified Network Associate (CCNA) certification demonstrates foundational technology knowledge and keeps professionals relevant.
    • The new CCNA focuses on IP, security, wireless, virtualization, automation, and network programmability.
    • DevNet certifications validate software development skills at associate, specialist, and professional levels.
    • Specialist certifications validate skills specific to job roles and interests.
    • Networking job opportunities can be found at www.netacad.com under the Careers menu, by selecting Employment opportunities.
    • The Talent Bridge Matching Engine can also be used to locate Cisco, Cisco Partner, and Distributor job postings seeking Cisco Networking Academy students and alumni.

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    Related Documents

    Module 1: Networking Today PDF

    Description

    This quiz covers essential concepts about different types of servers, including email, web, and file servers. Additionally, it explores peer-to-peer networks, their advantages, and disadvantages. Test your understanding of how end devices interact within these network structures.

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