Mastering Network Routing and Packet Forwarding
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Questions and Answers

Which of the following best describes the purpose of network vulnerability scanning?

  • To track applications at scale around the world
  • To exploit known vulnerabilities
  • To identify mistakes in an organization's network (correct)
  • To find potential victims for attackers

    • What is the main function of a network vulnerability scanner?

  • To connect to a server and check for outdated applications
  • To confirm the existence of a vulnerability (correct)
  • To exploit known vulnerabilities
  • To find potential victims for attackers

    • What is the role of the Shodan search engine?

  • To exploit known vulnerabilities
  • To identify vulnerabilities in an organization's network
  • To catalog scan results of internet-connected devices (correct)
  • To find potential victims for attackers

    • Why are network vulnerability scans of interest to both organizations and attackers?

    <p>To find potential victims for attackers</p> Signup and view all the answers

    What does the Shodan search engine claim to be?

    <p>A search engine for internet-connected devices</p> Signup and view all the answers

    How can network vulnerability scans be used to remediate vulnerabilities?

    <p>By identifying mistakes in an organization's network</p> Signup and view all the answers

    What type of records does the Shodan search engine store?

    <p>Records of collected scan results</p> Signup and view all the answers

    What is the purpose of running periodic network vulnerability scans?

    <p>To identify mistakes in an organization's network</p> Signup and view all the answers

    What action does a network vulnerability scanner take if an application is running an outdated version with a known vulnerability?

    <p>It confirms the existence of the vulnerability</p> Signup and view all the answers

    What is the significance of the Shodan search engine for security researchers?

    <p>To access a vast catalogue of scan results</p> Signup and view all the answers

    Which technique is an essential part of network administration and network analysis at organizations?

    <p>Technical scanning</p> Signup and view all the answers

    What does a ping test involve?

    <p>Sending an ICMP packet to a target machine</p> Signup and view all the answers

    What does a ping test indicate if the target machine replies with an echo reply packet?

    <p>The target machine is active and switched on</p> Signup and view all the answers

    What is the purpose of technical scanning during the reconnaissance stage of an attack?

    <p>To collect information about the technical configuration</p> Signup and view all the answers

    What information does a ping test provide?

    <p>The status of a machine</p> Signup and view all the answers

    What is the outbound packet called in a ping test?

    <p>Echo request packet</p> Signup and view all the answers

    What is a packet?

    <p>A small amount of formatted data</p> Signup and view all the answers

    What does the "time to live" (TTL) property indicate in a packet?

    <p>How far into a network the machine is located</p> Signup and view all the answers

    Which technique is commonly used by organizations to debug networking issues?

    <p>Ping test</p> Signup and view all the answers

    What details about a target machine can be obtained through technical scanning?

    <p>Services running on the machine, operating system in use, vulnerabilities of services</p> Signup and view all the answers

    Which of the following statements is true about the 'time to live' (TTL) in a packet?

    <p>The TTL is decreased by one at each router it passes through.</p> Signup and view all the answers

    What can be determined by performing a traceroute between two computers?

    <p>The number of devices on a network.</p> Signup and view all the answers

    Which command can be used to start a ping test on Windows machines?

    <p>ping target_name</p> Signup and view all the answers

    What is the purpose of port scanning?

    <p>To identify open ports on a target machine.</p> Signup and view all the answers

    Which of the following is true about "well known" ports?

    <p>They are the first 1,024 ports in the TCP protocol.</p> Signup and view all the answers

    What is the main purpose of vulnerability scanning?

    <p>To determine if a vulnerability exists on a target system.</p> Signup and view all the answers

    Which method of vulnerability scanning involves comparing software version numbers against a database?

    <p>Database scanning</p> Signup and view all the answers

    What is the potential risk of dynamic scanning in vulnerability scanning?

    <p>It may perform illegal actions in certain countries.</p> Signup and view all the answers

    Which statement is true about a network vulnerability scan?

    <p>It requires the owner's consent before scanning a target.</p> Signup and view all the answers

    Which protocol is commonly used for web-based applications?

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

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