Computer Network Topology Quiz
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Questions and Answers

What type of attack can lead to a denial of service by overwhelming a specific resource?

  • Tracking Cookies
  • Adware
  • Spyware
  • Brute force (correct)

    • Which threat is designed to collect user information for advertising and marketing purposes?

  • Tracking Cookies
  • Pop-ups
  • Adware (correct)
  • Spyware

    • What is the primary purpose of tracking cookies?

  • To slow down a computer
  • To lock out user accounts
  • To record information about an Internet user for personalization (correct)
  • To gather personal information without permission

    • Which type of program gathers personal information from a computer without the user's permission?

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

    What could be a consequence of spyware on a computer?

    <p>Creating more vulnerabilities for other threats</p> Signup and view all the answers

    How is adware different from spyware?

    <p>Adware is used for collecting personal information</p> Signup and view all the answers

    Which protocol governs the way a web server and client interact?

    <p>Hypertext Transfer Protocol (HTTP)</p> Signup and view all the answers

    Which protocol is responsible for managing the individual conversations between web servers and clients?

    <p>Transmission Control Protocol (TCP)</p> Signup and view all the answers

    What role does Internet Protocol (IP) play in the communication process?

    <p>Assigning logical addressing</p> Signup and view all the answers

    Which model was developed by the International Organization for Standardization (ISO) in 1984?

    <p>OSI Model</p> Signup and view all the answers

    Which protocol does not specify the interaction of any specific protocols?

    <p>Open Systems Interconnect Model</p> Signup and view all the answers

    What function does TCP perform on HTTP messages before sending them to the destination host?

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

    What is the term used to refer to a person or organization that sends spam?

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

    How do spammers sometimes gain control of home computers to send spam?

    <p>By planting viruses or worms</p> Signup and view all the answers

    What type of software has been used more recently by spammers to send spam?

    <p>Instant messaging software</p> Signup and view all the answers

    Which of the following should be a part of a security policy?

    <p>Identification and authentication policies</p> Signup and view all the answers

    What is the purpose of a security policy?

    <p>To define rules users must follow to secure the network</p> Signup and view all the answers

    Why is it important for all users of a network to support and follow a security policy?

    <p>For the security policy to be effective</p> Signup and view all the answers

    What is Social Engineering in the context of computer and network security?

    <p>A collection of techniques to deceive internal users</p> Signup and view all the answers

    How can an intruder gain access to a network, whether internal or external?

    <p>Exploiting human behavior</p> Signup and view all the answers

    What is one example of an unintentional internal threat mentioned in the text?

    <p>A trustworthy employee unknowingly bringing a security threat into the network</p> Signup and view all the answers

    What is a common method used by intruders to exploit human weaknesses?

    <p>Phishing attacks</p> Signup and view all the answers

    How does an internal threat caused by a trustworthy employee usually occur?

    <p>By unknowingly introducing a virus or security threat</p> Signup and view all the answers

    What does Social Engineering aim to achieve in the context of computer and network security?

    <p>Deceiving internal users into specific actions</p> Signup and view all the answers

    Which type of network topology involves a direct connection between computers?

    <p>P2P Topology</p> Signup and view all the answers

    What is a notable advantage of Bus Topology over other topologies?

    <p>Cost-effective cabling</p> Signup and view all the answers

    In which topology does each user set their own permissions?

    <p>Ring Topology</p> Signup and view all the answers

    Why is Point-to-Point Topology faster and highly reliable?

    <p>Direct connection between computers</p> Signup and view all the answers

    What is a significant drawback of the Point-to-Point Topology?

    <p>Limited to small areas</p> Signup and view all the answers

    Why is Bus Topology commonly used in building small networks?

    <p>Cost of cabling is very less</p> Signup and view all the answers

    Study Notes

    Internal Attacks

    • Not all internal attacks are intentional, some can come from trustworthy employees who unknowingly bring security threats into the internal network.

    Social Engineering

    • Social engineering is a term that refers to the ability of something or someone to influence the behavior of a group of people.
    • In the context of computer and network security, social engineering refers to a collection of techniques used to deceive internal users into performing specific actions or revealing confidential information.

    Computer Network Threat/Vulnerabilities

    • One of the easiest ways for an intruder to gain access, whether internal or external, is by exploiting human behavior.
    • A person or organization responsible for sending spam is called a spammer.
    • Spammers often make use of unsecured email servers to forward email.

    Computer Network Security Policy and Best Practice

    • A security policy is a formal statement of the rules that users must adhere to when accessing technology and information assets.
    • A security policy should be the central point for how a network is secured, monitored, tested, and improved upon.
    • Some things to include in a security policy are: identification and authentication policies, password policies, acceptable use policies, remote access policies, and incident handling procedures.

    TCP/IP Model

    • The TCP/IP model is used for exchanging information between a web server and a web client.
    • The protocols involved in the TCP/IP model are: application, transport, internetwork, and network access protocols.
    • HTTP governs the way that a web server and a web client interact.
    • TCP is the transport protocol that manages the individual conversations between web servers and web clients.
    • IP is responsible for taking the formatted segments from TCP, assigning logical addressing, and encapsulating them into packets for routing to the destination host.

    OSI Layer Model and Protocols

    • The OSI model was developed by the International Organization for Standardization (ISO) in 1984.
    • The OSI model does not specify the interaction of any specific protocols.
    • Examples of network devices are: routers, bridges/switches, repeater/hubs.
    • Examples of networking media are: cables (coaxial, copper twisted pair, fiber optics cable), or wireless technologies (radio wave, satellite).

    Computer Network Topology

    • Computer network topology refers to the way in which computers (nodes) are geometrically arranged and connected in a network.
    • Types of computer network topologies include: P2P, Bus, Ring, Star, Tree, Mesh, and Hybrid.

    Point-to-Point Network Topology

    • Advantages: faster and highly reliable, no need for a network operating system, no need for an expensive server, no need for dedicated network technicians.
    • Disadvantages: only suitable for small areas, no central backup of files and folders, no security besides permissions.

    Bus Topology

    • Advantages: low cost, widely used for building small networks, easy to install.

    Methods of Attack

    • Brute force attacks can cause a denial of service due to excessive traffic to a specific resource or by locking out user accounts.
    • Some attacks are designed to collect information about users, which can be used for advertising, marketing, and research purposes.
    • Examples of these types of attacks include: Spyware, Tracking Cookies, Adware, and Pop-ups.

    Spyware

    • Spyware is any program that gathers personal information from a computer without permission or knowledge.
    • Spyware can slow down a computer and make changes to internal settings, creating more vulnerabilities for other threats.

    Tracking Cookies

    • Cookies are a form of spyware, but are not always bad.
    • Cookies are used to record information about an Internet user when they visit websites.

    Adware

    • Adware is a form of spyware used to collect information about a user based on websites they visit.

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    Description

    Test your knowledge on different types of computer network topologies including P2P, Bus, Ring, and Star. Learn about how computers are arranged and connected in a network.

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