TM255 Course Study Notes
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Questions and Answers

What are three potential threats to hardware assets?

The three potential threats to hardware assets are theft, physical damage, and tampering.

How does tampering with hardware affect its accessibility?

Tampering with hardware can restrict or deny normal service and access to the asset.

In what way can physical damage pose a threat to hardware?

Physical damage can render hardware unusable, leading to loss of functionality and service interruptions.

What might be a consequence of stolen hardware for a business?

<p>Stolen hardware can lead to financial loss, data theft, and interruption of business operations.</p> Signup and view all the answers

Why is it important for organizations to understand the threats to their hardware assets?

<p>Understanding these threats allows organizations to implement effective security measures and mitigation strategies.</p> Signup and view all the answers

What does segmentation of data involve?

<p>Segmentation of data involves breaking a message into multiple small chunks and sending each segment separately.</p> Signup and view all the answers

What is one major benefit of data segmentation?

<p>One major benefit of data segmentation is improved transmission efficiency, allowing for quicker and more reliable transfer of large messages.</p> Signup and view all the answers

How does segmentation help maintain connection to an AP?

<p>Segmentation allows devices to connect to the access point (AP) with the strongest signal by efficiently managing data packets.</p> Signup and view all the answers

In terms of error handling, how does segmentation benefit data communication?

<p>Segmentation benefits data communication by allowing the retransmission of only the segments that encounter errors, rather than the entire message.</p> Signup and view all the answers

What happens if a segment is lost during transmission?

<p>If a segment is lost during transmission, only that specific segment needs to be resent, not the whole message.</p> Signup and view all the answers

What is the primary reason wireless networks are more vulnerable than wired networks?

<p>Wireless networks are more vulnerable due to the nature of their transmission channel, which is accessible remotely.</p> Signup and view all the answers

How does access restriction in a wired LAN contribute to network security?

<p>Access is limited to individuals with physical access to a network port, reducing unauthorized access risks.</p> Signup and view all the answers

What role does physical access play in securing a wired network?

<p>Physical access is crucial as it ensures that only authorized devices can connect to the network.</p> Signup and view all the answers

In what ways does the nature of wireless transmissions create security challenges?

<p>Wireless transmissions can be intercepted easily since they are broadcast over the air, making them more susceptible to eavesdropping.</p> Signup and view all the answers

What aspects of wired networking architecture enhance its stability against unauthorized access?

<p>Wired networking architecture relies on physical connections that require direct access, effectively limiting networking opportunities for unauthorized users.</p> Signup and view all the answers

What is a key risk associated with unauthorized use in wireless networks?

<p>Bandwidth theft is a key risk associated with unauthorized use in wireless networks.</p> Signup and view all the answers

How does eavesdropping pose a threat to wireless networks?

<p>Eavesdropping allows unauthorized users to intercept and access sensitive information being transmitted over the network.</p> Signup and view all the answers

What does threat to network availability refer to in the context of wireless networks?

<p>Threat to network availability refers to the potential disruptions that can affect the wireless network’s accessibility for legitimate users.</p> Signup and view all the answers

Why is unauthorized use of bandwidth a concern for network administrators?

<p>It's a concern because it can degrade service quality and limit the resources available to legitimate users.</p> Signup and view all the answers

What proactive measures can be taken to mitigate eavesdropping in wireless networks?

<p>Implementing encryption protocols can help mitigate eavesdropping in wireless networks.</p> Signup and view all the answers

What is a key advantage of WPA/WPA2-personal options compared to WPA/WPA2-enterprise?

<p>WPA/WPA2-personal options are easier to set up.</p> Signup and view all the answers

In what type of networks are WPA/WPA2-personal options most commonly used?

<p>They are used in most home or simple Wi-Fi networks.</p> Signup and view all the answers

How can the network name associated with WPA/WPA2-personal options be modified?

<p>The SSID can be changed.</p> Signup and view all the answers

Name one disadvantage of using WPA/WPA2-personal over WPA/WPA2-enterprise.

<p>WPA/WPA2-personal may lack the advanced security features found in enterprise options.</p> Signup and view all the answers

What security protocol do WPA/WPA2-personal options primarily utilize?

<p>They primarily utilize a pre-shared key (PSK) mechanism.</p> Signup and view all the answers

How does a GPS receiver determine its location using signals from satellites?

<p>A GPS receiver determines its location by calculating its distance from at least three satellites based on the time taken for the radio signals to reach it.</p> Signup and view all the answers

What role do radio signals play in GPS location determination?

<p>Radio signals from satellites are essential as they carry time-stamped information that allows the GPS receiver to calculate distance.</p> Signup and view all the answers

Why is it necessary for a GPS receiver to obtain signals from more than two satellites?

<p>A GPS receiver needs signals from at least three satellites to accurately triangulate its position on Earth.</p> Signup and view all the answers

What happens if the GPS receiver receives inaccurate signal timing from satellites?

<p>Inaccurate signal timing can lead to incorrect distance calculations, resulting in a faulty location determination.</p> Signup and view all the answers

Explain how the speed of radio signals is utilized in the GPS positioning process.

<p>The speed of radio signals, which is approximately the speed of light, is used to convert the time delay of received signals into distance measurements.</p> Signup and view all the answers

Study Notes

TM255 Study Notes

  • Course title: TM255
  • Lecturer: Mohammed Musa
  • Institution: Mahmoud's institute of quality
  • Course description: Study notes for TM255

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Description

These are the study notes for the TM255 course taught by Mohammed Musa at Mahmoud's Institute of Quality. Use these notes to prepare for exams and enhance your understanding of the course materials.

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