A Distributed Web Application Is Installed Across Several EC2 Instances

question 217

Multiple Choice

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?

• A) Use custom route tables to prevent malicious traffic from routing to the instances.
• B) Update security groups to deny traffic from the originating source IP addresses.
• C) Use network ACLs.
• D) Install intrusion prevention software (IPS) on each instance.

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Definitions:

Chapter 7

A provision under the United States Bankruptcy Code dealing with the process of liquidation, where a debtor's assets are sold to pay off creditors.

Order of Relief

An order stating that bankruptcy proceedings can continue.

Bankruptcy Relief

Legal measures available to individuals or businesses that cannot meet their debt obligations, allowing them to either restructure debts or discharge them under court supervision.

Reaffirmation Agreement

An agreement in which the debtor agrees to pay a debt even though it could have been discharged in bankruptcy.