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A company is deploying an Amazon EC2-based application. The application will include a custom health-checking component that produces health status data in JSON format. A Security Engineer must implement a secure solution to monitor application availability in near-real time by analyzing the hearth status data. Which approach should the Security Engineer use?

Question 56 - SCS-C02 discussion

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A Security Engineer receives alerts that an Amazon EC2 instance on a public subnet is under an SFTP brute force attack from a specific IP address, which is a known malicious bot. What should the Security Engineer do to block the malicious bot?

A.
Add a deny rule to the public VPC security group to block the malicious IP
Answers
A.
Add a deny rule to the public VPC security group to block the malicious IP
B.
Add the malicious IP to IAM WAF backhsted IPs
Answers
B.
Add the malicious IP to IAM WAF backhsted IPs
C.
Configure Linux iptables or Windows Firewall to block any traffic from the malicious IP
Answers
C.
Configure Linux iptables or Windows Firewall to block any traffic from the malicious IP
D.
Modify the hosted zone in Amazon Route 53 and create a DNS sinkhole for the malicious IP
Answers
D.
Modify the hosted zone in Amazon Route 53 and create a DNS sinkhole for the malicious IP
Suggested answer: D

Explanation:

what the Security Engineer should do to block the malicious bot. SFTP is a protocol that allows secure file transfer over SSH. EC2 is a service that provides virtual servers in the cloud. A public subnet is a subnet that has a route to an internet gateway, which allows it to communicate with the internet. A brute force attack is a type of attack that tries to guess passwords or keys by trying many possible combinations. A malicious bot is a software program that performs automated tasks for malicious purposes. Route 53 is a service that provides DNS resolution and domain name registration. A DNS sinkhole is a technique that redirects malicious or unwanted traffic to a different destination, such as a black hole server or a honeypot. By modifying the hosted zone in Route 53 and creating a DNS sinkhole for the malicious IP, the Security Engineer can block the malicious bot from reaching the EC2 instance on the public subnet. The other options are either ineffective or inappropriate for blocking the malicious bot.

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asked 16/09/2024
ERIC LUM
40 questions
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