4_1_1 Section 4 – Operations and Incident Response - 4.1 – Security Tools - Reconnaissance Tools – Part 1
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Questions and Answers

What is the main purpose of the traceroute command?

  • To map the entire path between two devices (correct)
  • To troubleshoot firewall issues
  • To test network connectivity
  • To configure router settings

    • Which command is used in Windows to achieve the same functionality as the traceroute command?

  • tracert (correct)
  • netstat
  • nslookup
  • ping

    • What type of error messages are used by the traceroute command to build the route?

  • ICMP Redirect
  • ICMP Time to Live Exceeded (correct)
  • ICMP Echo Request
  • ICMP Destination Unreachable

    • What is the purpose of the TTL parameter in IP packets?

    <p>To prevent loops on the network</p> Signup and view all the answers

    Why may there be gaps in the output of the traceroute command?

    <p>Due to firewalls or routers filtering out ICMP messages</p> Signup and view all the answers

    What is the mechanism by which packets are sent out to the network using the traceroute command?

    <p>IP packets with incremental TTL</p> Signup and view all the answers

    What protocol does Windows use for the traceroute command?

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

    What type of messages are sent back to the original station when the Time To Live is exceeded?

    <p>ICMP Time Exceeded</p> Signup and view all the answers

    What is the main reason why the traceroute command may not work as well in Windows as in Linux or Mac OS?

    <p>ICMP is blocked by firewalls</p> Signup and view all the answers

    What is the purpose of the Time To Live (TTL) in a traceroute command?

    <p>To prevent packets from circulating indefinitely</p> Signup and view all the answers

    What is the default protocol used for the traceroute command in iOS?

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

    What happens when a packet's TTL reaches 0?

    <p>It is dropped by the router</p> Signup and view all the answers

    What is the purpose of the traceroute command?

    <p>To determine the route to the destination</p> Signup and view all the answers

    What is the difference between the ICMP Echo Request and ICMP Echo Reply?

    <p>ICMP Echo Request is sent to the destination, while ICMP Echo Reply is sent back</p> Signup and view all the answers

    What is the advantage of using different protocols for the traceroute command?

    <p>It allows for more flexibility in network diagnostics</p> Signup and view all the answers

    What is the outcome when the TTL is finally exceeded at the destination IP address?

    <p>An ICMP Echo Reply is sent back</p> Signup and view all the answers

    What is the purpose of running a traceroute?

    <p>To identify the hop where a network problem is occurring</p> Signup and view all the answers

    What does an exclamation mark 'Z' indicate in a traceroute result?

    <p>Connection to the IP address is administratively prohibited</p> Signup and view all the answers

    What is the purpose of the nslookup command?

    <p>To query a DNS server for information about a domain</p> Signup and view all the answers

    What is the dig command used for?

    <p>To query a DNS server for information about a domain</p> Signup and view all the answers

    What is the difference between the nslookup and dig commands?

    <p>Nslookup provides less information than dig</p> Signup and view all the answers

    What is the purpose of the ipconfig command in Windows?

    <p>To determine the IP address of a device</p> Signup and view all the answers

    What is the equivalent command to ipconfig in Linux and Mac OS?

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

    Why would you run a traceroute with multiple hops?

    <p>To identify the path data takes to reach a destination</p> Signup and view all the answers

    What is the purpose of the -n option when using the netstat command?

    <p>To display only IP addresses and not resolve names</p> Signup and view all the answers

    What is the purpose of running a DNS query using nslookup or dig?

    <p>To gather information about a domain</p> Signup and view all the answers

    What is the purpose of the ping command?

    <p>To check if a device is communicating on the network</p> Signup and view all the answers

    Why would you use the /all option with the ipconfig command?

    <p>To get more detailed information about the IP configuration</p> Signup and view all the answers

    What is the name of the command that combines the functionality of ping and traceroute in Windows?

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

    What is the command used to view the ARP cache in Windows?

    <p>arp -a</p> Signup and view all the answers

    What is the purpose of the netstat command?

    <p>To show network statistics and active connections</p> Signup and view all the answers

    What is the purpose of the netstat command with the -a option?

    <p>To display all active connections and the programs they are associated with</p> Signup and view all the answers

    What is the purpose of the route command in Windows?

    <p>To view the routing table</p> Signup and view all the answers

    What is the IP address of the Google DNS server mentioned in the text?

    <p>8.8.8.8</p> Signup and view all the answers

    What is the default route designated by?

    <p>0.0.0.0 with a netmask of 0.0.0.0</p> Signup and view all the answers

    What is the name of the creator of the ping command?

    <p>Mike Muuss</p> Signup and view all the answers

    What does the ping command do when you run it?

    <p>Checks if a device is communicating on the network</p> Signup and view all the answers

    What is the command used to view the routing table in Linux and Mac OS?

    <p>netstat -r</p> Signup and view all the answers

    What does the pathping command do?

    <p>Runs a traceroute to a destination IP address and measures the round-trip time</p> Signup and view all the answers

    What is the purpose of using the netstat command with the -b option?

    <p>To associate the Windows binary with the IP address conversation</p> Signup and view all the answers

    What is the purpose of the netstat-b command in Windows?

    <p>To show all active connections on the device</p> Signup and view all the answers

    What is displayed when using the netstat command with the -a and -b options?

    <p>All active connections and the programs they are associated with</p> Signup and view all the answers

    What is the purpose of using the ARP command with the -a option?

    <p>To view the ARP cache</p> Signup and view all the answers

    What is the result of the pathping command to the IP address 8.8.8.8?

    <p>100% packet loss on a particular hop</p> Signup and view all the answers

    What is the purpose of the IPv6 address?

    <p>To provide a unique identifier for a device on the network</p> Signup and view all the answers

    What is the metric value of the default route in the given example?

    <p>25</p> Signup and view all the answers

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