Computer Networking Concepts
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Questions and Answers

What is a major consequence of network or internet failure for an organization?

  • Network infrastructure becomes overly complicated
  • Transactions and operations are halted during downtime (correct)
  • Employees become less productive immediately
  • Sales spikes occur during downtime
  • What benefit does regular network maintenance provide?

  • Identifying and repairing faulty cables and devices before they cause problems (correct)
  • Creating additional network bottlenecks
  • Reducing internet capacity to enhance speed
  • Increasing the need for employee network training
  • What could occur if a company fails to address frequent network failures?

  • It will create an environment of consistent productivity
  • It could enhance marketplaces for new clients
  • It will improve employee morale significantly
  • It could lead to a damaged reputation and loss of trust among clients (correct)
  • Which action is considered a best practice in avoiding phishing attacks?

    <p>Double-checking the URL of suspicious links before clicking</p> Signup and view all the answers

    What impact can strict network security measures have on a company?

    <p>Possibly discouraging operational flow due to tight controls</p> Signup and view all the answers

    How can frequent internet and network failures impact a company's reputation?

    <p>They can damage the company's reputation and imply negligence</p> Signup and view all the answers

    What is one method to prevent network downtime and its associated costs?

    <p>Perform occasional internet checks and maintain cables</p> Signup and view all the answers

    What can happen if a business fails to meet deliverables on time due to network failure?

    <p>It could face legal repercussions</p> Signup and view all the answers

    What is the role of a Firewall in network security?

    <p>It monitors and filters incoming and outgoing network traffic to protect against unauthorized access</p> Signup and view all the answers

    Which of the following best describes an Intrusion Detection System (IDS)?

    <p>A system that scans for known malicious activity and alerts the network administrator</p> Signup and view all the answers

    What does the term 'forward secrecy' refer to in WPA3?

    <p>It prevents decryption of past sessions even if a server’s private key is compromised</p> Signup and view all the answers

    What is a potential consequence of failing to implement enhanced security measures?

    <p>Revenue loss</p> Signup and view all the answers

    Which of the following indicates a poor approach to network management?

    <p>Ignoring system alerts and notifications</p> Signup and view all the answers

    What is the main benefit of protecting users' personal data online?

    <p>It protects users' personal data from identity theft and malicious activity</p> Signup and view all the answers

    Which of the following actions does NOT contribute to protecting internet privacy?

    <p>Ignoring social media privacy settings</p> Signup and view all the answers

    What is the primary purpose of a Virtual Private Network (VPN)?

    <p>To encrypt incoming and outgoing internet traffic</p> Signup and view all the answers

    What practice is most effective for limiting personal information shared on social media?

    <p>Setting your social media accounts to private</p> Signup and view all the answers

    What does Multi-factor Authentication (MFA) provide for user accounts?

    <p>Adds an extra verification step to log in to an account</p> Signup and view all the answers

    Which feature is characteristic of Wi-Fi Protected Access 3 (WPA3)?

    <p>It encrypts past sessions even if the server’s private key is compromised</p> Signup and view all the answers

    How does an Intrusion Detection System (IDS) contribute to network security?

    <p>By monitoring and analyzing network traffic for malicious activity</p> Signup and view all the answers

    What is one of the potential effects of internet and network failures for businesses?

    <p>Reduced communication with clients</p> Signup and view all the answers

    Which of the following best describes Star Topology?

    <p>All devices are connected to a central hub or switch.</p> Signup and view all the answers

    What occurs in a Mesh Topology when a device fails?

    <p>The network can still operate via alternate paths.</p> Signup and view all the answers

    Which of the following is not an advantage of wired networks over wireless networks?

    <p>Greater mobility</p> Signup and view all the answers

    What is a primary disadvantage of Token Ring topology?

    <p>If an error corrupts the token, communication can stop.</p> Signup and view all the answers

    Which of the following is not a common function of a Router?

    <p>Connecting wireless devices to wired networks</p> Signup and view all the answers

    A Wi-Fi Modem combines the functionality of which two devices?

    <p>Modem and Router</p> Signup and view all the answers

    Which OSI layer is responsible for creating packets with routing information?

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

    In a Bus Topology, how do devices share the communication medium?

    <p>All devices share the same communication medium, leading to potential data collisions.</p> Signup and view all the answers

    What is the primary purpose of computer networking?

    <p>To enable web browsing, sending emails, sharing files, and downloading media</p> Signup and view all the answers

    Which network category is used to connect devices within a single building or a limited area?

    <p>Local Area Network (LAN)</p> Signup and view all the answers

    Which of the following networks spans multiple cities or large geographic areas?

    <p>Metropolitan Area Network (MAN)</p> Signup and view all the answers

    What is the role of the Transport Layer in the OSI Model?

    <p>Ensures error-free end-to-end delivery of data</p> Signup and view all the answers

    Which layer of the OSI model is responsible for translating data between different formats for applications?

    <p>Presentation Layer</p> Signup and view all the answers

    What is the function of the Data Link Layer in the OSI model?

    <p>Manages error recovery, flow control, and data sequencing</p> Signup and view all the answers

    Which of the following is true about Wireless Networks compared to Wired Networks?

    <p>Wireless networks provide mobility but can be slower and have potential security issues.</p> Signup and view all the answers

    What does a Hub do in a wired network?

    <p>Broadcasts data to all devices connected to it</p> Signup and view all the answers

    Study Notes

    Computer Networking Concepts

    • Primary purpose of computer networking: To enable computers to share resources (email, files, media etc), and enable web browsing.

    • Network category for single building: Local Area Network (LAN).

    • Network spanning multiple cities: Metropolitan Area Network (MAN).

    • Data center network role: Linking multiple servers and data to be accessible to users in remote locations.

    • Transport Layer role (OSI Model): Ensures error-free end-to-end data delivery.

    • OSI layer for data translation: Presentation Layer.

    • Data Link Layer function: Manages error recovery, flow control, and data sequencing. It also defines electrical and mechanical connections.

    • Wireless vs. Wired Networks: Wireless networks provide mobility but can be slower and have potential security issues.

    • Hub function in wired networks: Broadcasts data to all connected devices.

    • Device responsible for monitoring network traffic and security: Firewall.

    • Star Topology description: All devices are connected to a central hub or switch.

    • Mesh Topology failure: The network can still operate via alternate paths.

    • Wired vs. Wireless Networks Advantage: Faster data transfer speeds and less susceptible to interference with wired networks.

    • Token Ring topology disadvantage: If an error corrupts the token, communication can stop.

    • Router Function: Forwarding data between networks, connecting wireless devices to wired networks, and assigning IP addresses.

    • Wi-Fi Modem components: Combines the functionality of a modem and a router.

    • OSI layer responsible for routing (packet creation): Network Layer.

    • Point-to-Point Topology: Two devices are directly connected.

    • Wired network device (not a router or switch): LAN Ethernet Cable.

    • Bus Topology Data Sharing: All devices share the communication medium, potentially leading to data collisions.

    • Importance of internet privacy: Protecting personal data from identity theft and malicious activity.

    • VPN function: Encrypts incoming and outgoing internet traffic.

    • Social Media Privacy Practices: Setting social media accounts to private, limiting personal information shared.

    • Multi-factor Authentication (MFA) function: Adds an extra verification step to log in to an account.

    • Wi-Fi Protected Access 3 (WPA3) Feature: Encrypts past sessions even if the server's private key is compromised.

    • Intrusion Detection System (IDS) function: Monitors and analyzes network traffic for malicious activity.

    • Consequence of network failure: Revenue loss.

    • Network Downtime Prevention: Regular monitoring of cables and devices, maintaining cables, and performing routine checks.

    • Network failure consequences for business: Possible legal repercussions from non-delivery of work and a damaged reputation.

    • Firewall function: Monitors and filters incoming and outgoing network traffic, protecting against unauthorized access.

    • Best practice to avoid phishing attacks: Double-checking the URL of suspicious links before clicking.

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    Description

    This quiz explores essential concepts of computer networking, including different types of networks such as LAN and MAN, as well as key roles within the OSI model. Learn about the functions of various layers and the differences between wired and wireless networks. Test your knowledge on networking fundamentals and their applications.

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