Mastering EC2 Troubleshooting
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Questions and Answers

Which component is automatically assigned to a subnet level in AWS?

  • Security group
  • NACL (correct)
  • Route 53
  • IGW

    • What is the purpose of CloudTrail?

  • Capture IP traffic in VPC
  • Monitor account activity in AWS (correct)
  • Log DNS queries
  • Check connectivity troubleshooting

    • Which AWS default component is automatically attached to a default VPC?

  • IGW (correct)
  • Security group
  • NACL
  • Route 53

    • What is the purpose of VPC flow logs?

    <p>Capture IP traffic in VPC</p> Signup and view all the answers

    Which component is stateless and has separate incoming and outgoing rules?

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

    What is the purpose of Route 53 logs?

    <p>Log DNS queries</p> Signup and view all the answers

    Which component needs to be manually applied to an instance in AWS?

    <p>Security group</p> Signup and view all the answers

    Which component can be used to block a specific IP address to an EC2 instance?

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

    Which component has rules applied in a specific order based on their assigned number?

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

    Which component has both allow and deny rules?

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

    Which of the following could be causing the access issue for the FortiGate VM?

    <p>The SG has the incorrect inbound rule</p> Signup and view all the answers

    What should you check first when troubleshooting EC2 connectivity issues?

    <p>The EC2 IP-address</p> Signup and view all the answers

    What is the purpose of an inbound rule in an SG?

    <p>To allow traffic from a specific IP-address</p> Signup and view all the answers

    What could be the reason for no incoming traffic to the FortiGate VM?

    <p>The sniffer capture shows no incoming traffic</p> Signup and view all the answers

    What should you check if there is no HTTPS or SSH connectivity to the FortiGate VM?

    <p>The FortiGate sniffer capture</p> Signup and view all the answers

    What is the purpose of a network access control list (NACL)?

    <p>To allow traffic from all IP-addresses</p> Signup and view all the answers

    What is the purpose of a VPC route table?

    <p>To allow traffic from all IP-addresses</p> Signup and view all the answers

    What should you check last when troubleshooting EC2 connectivity issues?

    <p>The local firewall and routing table</p> Signup and view all the answers

    What is the purpose of an SG inbound rule for SSH or HTTPS?

    <p>To allow traffic from a specific IP-address</p> Signup and view all the answers

    What is the purpose of an internet gateway (IGW) in a VPC?

    <p>To allow traffic from all IP-addresses</p> Signup and view all the answers

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