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Questions and Answers
What is the primary purpose of the Spanning Tree Protocol (STP)?
To prevent loops on a network when switches interconnect via multiple paths.
Which of the following is NOT a RAID setup type?
Router redundancy is important to avoid a single point of failure.
True
What vulnerability can arise from using medical devices with wireless connectivity?
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Which of the following devices is an example of a sensing device?
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Match the following embedded systems with their primary function:
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Drones are commonly used only for military applications.
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What function do deception devices serve in security?
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Study Notes
System and Network Defense
- Spanning Tree Protocol (STP) prevents network loops by blocking redundant paths when switches are interconnected.
- Router redundancy involves installing a backup router to eliminate single points of failure, providing continuous access through a default gateway.
Cybersecurity Resilience
- RAID (Redundant Array of Independent Disks) enhances data storage by distributing data across multiple disks.
- Mirroring duplicates data on two drives for backup.
- Striping spreads data across drives for efficiency.
- Parity adds error-checking capability to striped data.
Internet of Things (IoT)
- IoT constitutes a large network of interconnected devices relying on various communication technologies through devices, cloud, and peer connectivity.
- IoT devices include:
- General devices: hubs and smart devices.
- Sensing devices: measure parameters and perform specific actions.
Special-Purpose Embedded Systems: Medical Devices
- Medical devices enabled with wireless connectivity include:
- Pacemakers
- Insulin pumps
- Medical implants
- Defibrillators
- Vulnerabilities in medical devices can compromise patient safety, leak medical records, and allow cybercriminal access to networks.
Automotive Systems
- Connected vehicles gather data on speed, location, and braking maneuvers, often sharing information with insurance companies.
- In-vehicle communication poses risks such as unauthorized tracking, wireless jamming, and spoofing.
Aviation Systems
- Aircraft are equipped with embedded control systems for flight control and communications.
- Unmanned Aerial Vehicles (UAVs) are utilized in military, agricultural, and mapping sectors.
- Vulnerabilities in aviation systems include hijacking, Wi-Fi attacks, GPS spoofing, jamming, and de-authentication attacks.
Deception Devices
- Organizations employ deception devices to mislead attackers away from critical networks.
- These devices help in learning attacker methods and alerting to potential threats.
- Deception devices add a fake layer to the organization’s infrastructure, enhancing overall security.
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Description
This quiz covers key concepts in cybersecurity resilience, focusing on router redundancy, system and network defense, and the role of default gateways in network access. Test your understanding of these critical topics that ensure secure and efficient network operations.
