Security and Cooperation in Wireless Networks: Chapter 2 Quiz
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Security and Cooperation in Wireless Networks: Chapter 2 Quiz

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Questions and Answers

In self-organized mobile ad hoc networks, what is a potential issue related to selfish nodes?

  • Randomly generating new addresses
  • Refusing to forward packets (correct)
  • Using long hops for packet transmission
  • Cooperating with other nodes

    • What is the main design criteria for sensor nodes in sensor networks?

  • Maximizing energy consumption
  • Utilizing single-hop communication
  • Reducing the energy consumption (correct)
  • Increasing the number of base stations

    • How does multi-hop communication contribute to reducing energy consumption in sensor networks?

  • It increases the overall energy consumption
  • It does not impact energy consumption
  • It requires more re-transmissions due to collisions
  • It allows packets to be sent in several smaller hops instead of one long hop (correct)

    • What solution addresses the problem of address change when a node changes location in the Internet?

    <p>Mobile IP</p> Signup and view all the answers

    What is a care-of address used for in mobile IP?

    <p>Tunneling packets for the correspondent node</p> Signup and view all the answers

    Which security requirements are essential for sensor networks?

    <p>Integrity, confidentiality, availability</p> Signup and view all the answers

    What does bidirectional tunneling involve in mobile IP?

    <p>Tunneling packets through the home agent and care-of address</p> Signup and view all the answers

    What role does the home agent play in mobile IP route optimization?

    <p>Optimizing route for correspondent node communication</p> Signup and view all the answers

    What does route optimization involve in mobile IP?

    <p>Registration of current address binding with the correspondent node</p> Signup and view all the answers

    What is the main purpose of upcoming wireless networks?

    <p>To reduce energy consumption and improve communication efficiency</p> Signup and view all the answers

    What is the main advantage of wireless mesh networks?

    <p>Easy deployment with a single connection point to the Internet</p> Signup and view all the answers

    What is a characteristic of upcoming wireless networks known as hybrid ad hoc networks?

    <p>Presence of relay stations for traffic transfer</p> Signup and view all the answers

    What type of networks are specifically mentioned to have security challenges related to secure routing and prevention of traffic analysis?

    <p>Mobile ad hoc networks</p> Signup and view all the answers

    What is a critical constraint that prevents the wide-scale deployment of wireless mesh networks according to the text?

    <p>Lack of security guarantees</p> Signup and view all the answers

    What is the primary problem related to power management in hybrid ad hoc networks or multi-hop cellular networks?

    <p>Challenges in coordinating power settings across mobile stations</p> Signup and view all the answers

    Which type of upcoming wireless network offers a much lower cost than classic WiFi networks for providing Internet connectivity in a sizable geographic area?

    <p>Wireless mesh networks</p> Signup and view all the answers

    What is the main role of mobile stations in a mesh network?

    <p>Act as relay stations for traffic transfer</p> Signup and view all the answers

    What is a major characteristic of mobile ad hoc networks in hostile environments according to the text?

    <p>Presence of strong attackers and security challenges</p> Signup and view all the answers

    What aspect makes wireless mesh networks not yet ready for wide-scale deployment according to the text?

    <p>Severe capacity and delay constraints</p> Signup and view all the answers

    What characteristic differentiates hybrid ad hoc networks from multi-hop cellular networks according to the text?

    <p>Other mobile stations relay the traffic in multi-hop cellular networks</p> Signup and view all the answers

    What is the main design criteria for sensor nodes in sensor networks?

    <p>Reducing the energy consumption</p> Signup and view all the answers

    What does bidirectional tunneling involve in mobile IP?

    <p>It involves creating a one-way tunnel for data transmission</p> Signup and view all the answers

    What type of networks are specifically mentioned to have security challenges related to secure routing and prevention of traffic analysis?

    <p>Mobile ad hoc networks</p> Signup and view all the answers

    What is a care-of address used for in mobile IP?

    <p>It is the address used by the mobile node while it is attached to a foreign link</p> Signup and view all the answers

    Which security requirements are essential for sensor networks?

    <p>Integrity, confidentiality, and availability</p> Signup and view all the answers

    What is the primary problem related to power management in hybrid ad hoc networks or multi-hop cellular networks?

    <p>Limited battery life of mobile nodes</p> Signup and view all the answers

    What characteristic differentiates hybrid ad hoc networks from multi-hop cellular networks according to the text?

    <p>Dynamic establishment of connections between nodes</p> Signup and view all the answers

    What aspect makes wireless mesh networks not yet ready for wide-scale deployment according to the text?

    <p>Complexity of network configuration</p> Signup and view all the answers

    What solution addresses the problem of address change when a node changes location in the Internet?

    <p>Mobile IP</p> Signup and view all the answers

    What role does the home agent play in mobile IP route optimization?

    <p>It tunnels packets for the correspondent node through its care-of address</p> Signup and view all the answers

    What is a key characteristic of wireless mesh networks mentioned in the text?

    <p>Single connection point to the Internet</p> Signup and view all the answers

    What is a primary concern for mobile ad hoc networks in hostile environments according to the text?

    <p>Secure routing</p> Signup and view all the answers

    What differentiates hybrid ad hoc networks from multi-hop cellular networks as mentioned in the text?

    <p>Use of other mobile stations as relays</p> Signup and view all the answers

    What is a significant reason why wireless mesh networks are not yet ready for wide-scale deployment according to the text?

    <p>Severe capacity and delay constraints</p> Signup and view all the answers

    What is the main purpose of upcoming wireless networks mentioned in the text?

    <p>Providing Internet connectivity in a sizable geographic area</p> Signup and view all the answers

    What is a primary challenge for mobile ad hoc networks in self-organized environments according to the text?

    <p>Energy efficiency optimization</p> Signup and view all the answers

    What is a major advantage of wireless mesh networks as mentioned in the text?

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

    What represents a significant issue for power management in hybrid ad hoc networks or multi-hop cellular networks according to the text?

    <p>Power management constraints</p> Signup and view all the answers

    What characteristic defines the upcoming wireless network known as hybrid ad hoc networks?

    <p>No relay stations, instead, other mobile stations relay the traffic</p> Signup and view all the answers

    What are the potential security threats for the TAPs in multi-hop communications?

    <p>Capture, cloning, and tampering</p> Signup and view all the answers

    Which operations are considered fundamental for security in multi-hop communications?

    <p>Detection of corrupt nodes, secure routing, fairness</p> Signup and view all the answers

    What becomes critical in multi-hop communications due to delayed detection and treatment of attacks?

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

    What is a notable concern related to the TAPs in multi-hop communications?

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

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