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SOA-C02 · Question #476

A SysOps administrator launches an Amazon EC2 Linux instance in a public subnet. When the instance is running, the SysOps administrator obtains the public IP address and attempts to remotely connect…

The correct answer is C. Modify the instance security group to allow inbound SSH traffic from the SysOps administrator's. https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/authorizing-access-to-an-instance.html

Submitted by yuki_2020· Mar 30, 2026Networking and Content Delivery

Question

A SysOps administrator launches an Amazon EC2 Linux instance in a public subnet. When the instance is running, the SysOps administrator obtains the public IP address and attempts to remotely connect to the Instance multiple times. However, the SysOps administrator always receives a timeout error. Which action will allow the SysOps administrator to remotely connect to the instance?

Options

  • AAdd a route table entry in the public subnet for the SysOps administrator's IP address.
  • BAdd an outbound network ACL rule to allow TCP port 22 for the SysOps administrator's IP
  • CModify the instance security group to allow inbound SSH traffic from the SysOps administrator's
  • DModify the instance security group to allow outbound SSH traffic to the SysOps administrator's IP

How the community answered

(37 responses)
  • A
    5% (2)
  • B
    11% (4)
  • C
    81% (30)
  • D
    3% (1)

Explanation

https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/authorizing-access-to-an-instance.html

Topics

#security groups#SSH access#inbound rules#EC2 connectivity

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