1.
An organization wants to be alerted when an unauthorized Amazon EC2 instance in its VPC performs a network port scan against other instances in the VPC. When the Security team performs its own internal tests in a separate account by using pre-approved third-party scanners from the AWS Marketplace, the Security team also then receives multiple Amazon GuardDuty events from Amazon CloudWatch alerting on its test activities.
How can the Security team suppress alerts about authorized security tests while still receiving alerts about the unauthorized activity?
2.
A distributed web application is installed across several EC2 instances in public subnets residing in two Availability Zones. Apache logs show several intermittent brute-force attacks from hundreds of IP addresses at the layer 7 level over the past six months. What would be the BEST way to reduce the potential impact of these attacks in the future?
3.
Which of the following minimizes the potential attack surfacefor applications?
4.
A company has deployed a custom DNS server in AWS. The Security Engineer wants to ensure that Amazon EC2 instances cannot use the Amazon-provided DNS.
How can the Security Engineer block access to the Amazon-provided DNS in the VPC?
5.
Which approach will generate automated security alerts should too many unauthorized AWS API requests be identified?