Question

A company is hosting a web application on Amazon EC2 instances. The company wants to implement custom conditions to filter and control Inbound Web Traffic.

Which AWS service will meet these requirements?

A. Amazon GuardDuty
B. AWS WAF
C. Amazon Macie
D. AWS Shield

Answer

B. AWS WAF

Explanation 1

The AWS service that will meet the requirements of implementing custom conditions to filter and control inbound Web Traffic for a web application hosted on Amazon EC2 instances is AWS WAF (Option B).

Explanation:

Let’s examine each option to determine the most suitable service:

A. Amazon GuardDuty: Amazon GuardDuty is a threat detection service that continuously monitors for malicious activity and unauthorized behavior within your AWS environment. While it provides security monitoring, it does not specifically offer the ability to implement custom conditions to filter and control inbound web traffic.

B. AWS WAF: AWS WAF (Web Application Firewall) is a web application firewall service that helps protect your web applications from common web exploits and attacks. It allows you to define custom conditions, such as IP addresses, geographic locations, HTTP headers, query parameters, and more, to filter and control inbound web traffic. With AWS WAF, you can create rules to allow, block, or rate-limit traffic based on these conditions, providing granular control over what traffic is allowed to reach your web application.

C. Amazon Macie: Amazon Macie is a security service that uses machine learning to automatically discover, classify, and protect sensitive data within your AWS environment. It focuses on data protection and does not provide the necessary features to filter and control inbound web traffic.

D. AWS Shield: AWS Shield is a managed Distributed Denial of Service (DDoS) protection service. It offers protection against DDoS attacks but does not provide the ability to create custom conditions for filtering and controlling inbound web traffic.

In summary, based on the requirements of implementing custom conditions to filter and control inbound web traffic for a web application hosted on Amazon EC2 instances, the most appropriate AWS service is AWS WAF (Option B). It allows you to define custom rules and conditions to filter and control traffic, providing an additional layer of security for your web application.

Explanation 2

The correct answer is B. AWS WAF.

AWS WAF is a web application firewall that helps protect web applications from common web attacks. It can be used to filter and control inbound web traffic based on a variety of conditions, including IP addresses, ports, HTTP headers, and URL patterns.

Amazon GuardDuty is a threat detection service that uses machine learning to identify malicious activity. It does not provide the ability to filter or control inbound web traffic.

Amazon Macie is a data security and compliance service that helps organizations discover, classify, and protect sensitive data. It does not provide the ability to filter or control inbound web traffic.

AWS Shield is a managed Distributed Denial of Service (DDoS) protection service that helps protect web applications from volumetric attacks. It does not provide the ability to filter or control inbound web traffic.

Therefore, the AWS service that will meet the requirements of this question is AWS WAF.

Explanation 3

The correct answer is B. AWS WAF. AWS WAF is a web application firewall that helps protect web applications from common web exploits that could affect availability, compromise security, or consume excessive resources. AWS WAF lets you define customizable web security rules that control which traffic can access your web applications. You can use AWS WAF to create rules that block common attack patterns, such as SQL injection or cross-site scripting, and rules that filter out specific traffic patterns you define.

Amazon GuardDuty is a threat detection service that continuously monitors for malicious activity and unauthorized behavior to protect your AWS accounts and workloads. Amazon Macie is a fully managed data security and data privacy service that uses machine learning and pattern matching to discover and protect your sensitive data in AWS. AWS Shield is a managed Distributed Denial of Service (DDoS) protection service that safeguards applications running on AWS.

None of these services can implement custom conditions to filter and control inbound web traffic, which is the requirement of the question. Therefore, AWS WAF is the only service that meets these requirements.

Explanation 4

The AWS service that will meet these requirements is B. AWS WAF. AWS WAF (Web Application Firewall) helps to filter and control inbound web traffic based on custom conditions.

AWS WAF, or Web Application Firewall, is designed specifically to protect your web applications by filtering and monitoring HTTP/HTTPS traffic between your application and the Internet. It helps to block malicious requests like SQL injection and XSS attacks by defining customizable web security rules.

When you use AWS WAF with your Amazon EC2 instances, you can create rules that allow, block, or count web requests based on conditions like IP addresses, HTTP headers, HTTP body, or URI strings. This gives you control over the traffic reaching your application.

Moreover, AWS WAF integrates seamlessly with other AWS services like AWS Shield for DDoS protection, Amazon CloudFront for content delivery, and AWS Lambda for running your code without provisioning or managing servers. This makes it a comprehensive solution for protecting your web application hosted on Amazon EC2 instances.

Explanation 5

The correct answer is B. AWS WAF.

AWS WAF is a web application firewall service that helps protect web applications from common web exploits that could affect availability, compromise security, or consume excessive resources. AWS WAF gives you control over which traffic to allow or block to your web applications by defining customizable web security rules. You can use AWS WAF to create custom rules that block common attack patterns, such as SQL injection or cross-site scripting, and rules that are designed for your specific application. You can also use AWS WAF to filter and control inbound web traffic based on conditions such as IP addresses, HTTP headers, HTTP body, or URI strings.

Amazon GuardDuty is a threat detection service that continuously monitors for malicious activity and unauthorized behavior to protect your AWS accounts and workloads. It analyzes and processes data sources such as VPC Flow Logs, AWS CloudTrail event logs, and DNS logs. It uses machine learning, anomaly detection, and integrated threat intelligence to identify and prioritize potential threats.

Amazon Macie is a fully managed data security and data privacy service that uses machine learning and pattern matching to discover and protect your sensitive data in AWS. It automatically provides an inventory of your Amazon S3 buckets and analyzes the objects in them to identify sensitive data such as personally identifiable information (PII), financial information, intellectual property, or credentials. It also monitors access patterns and alerts you to any unusual or unauthorized activity.

AWS Shield is a managed Distributed Denial of Service (DDoS) protection service that safeguards applications running on AWS. It provides always-on detection and automatic inline mitigations that minimize application downtime and latency, so there is no need to engage AWS Support to benefit from DDoS protection. There are two tiers of AWS Shield – Standard and Advanced.

Explanation 6

The correct answer is: B. AWS WAF

Explanation:

For implementing custom conditions to filter and control inbound web traffic for a web application hosted on Amazon EC2 instances, the appropriate AWS service is AWS WAF (Web Application Firewall).

Here’s the detailed explanation:

• AWS WAF: AWS WAF is a managed service that provides firewall protection for your web applications. It allows you to create custom rules and conditions to filter and control incoming web traffic based on criteria such as IP addresses, geographic locations, user agent strings, query string parameters, and more. This helps protect your web applications from common web exploits and attacks, such as SQL injection, cross-site scripting (XSS), and more.
  • Custom Conditions: AWS WAF allows you to define custom rules and conditions to filter and allow or block specific types of traffic. This is especially useful for implementing fine-grained control over the inbound traffic to your web application.
  • Web Application Protection: AWS WAF is designed specifically to protect web applications from various types of attacks and exploits, making it a suitable choice for filtering web traffic.
• Amazon GuardDuty: GuardDuty is a threat detection service that continuously monitors for malicious activity and unauthorized behavior in your AWS environment. It’s not focused on filtering or controlling inbound web traffic in the same way as AWS WAF.
• Amazon Macie: Macie is a service that helps you discover, classify, and protect sensitive data stored in Amazon S3. It’s not designed for filtering or controlling web traffic for EC2 instances.
• AWS Shield: AWS Shield is a managed Distributed Denial of Service (DDoS) protection service that safeguards applications running on AWS. While it helps protect applications from DDoS attacks, it’s not primarily focused on filtering and controlling specific inbound web traffic conditions.

In conclusion, AWS WAF is the AWS service that allows you to implement custom conditions to filter and control inbound web traffic for a web application hosted on Amazon EC2 instances. It offers the necessary tools to create rules and protect against web-based attacks and vulnerabilities.

Explanation 7

The correct answer is B. AWS WAF.

AWS WAF (Web Application Firewall) is a managed web application firewall that helps protect web applications from common web exploits. It can be used to filter and control inbound web traffic based on a variety of conditions, including IP addresses, ports, HTTP headers, and URL patterns.

Amazon GuardDuty is a managed threat detection service that uses machine learning to identify and investigate potential threats to your AWS resources. It does not provide any functionality for filtering or controlling inbound web traffic.

Amazon Macie is a managed data loss prevention (DLP) service that helps you discover, classify, and protect sensitive data in AWS. It does not provide any functionality for filtering or controlling inbound web traffic.

AWS Shield is a managed Distributed Denial of Service (DDoS) protection service that helps protect your AWS resources from DDoS attacks. It does not provide any functionality for filtering or controlling inbound web traffic.

Therefore, the AWS service that will meet the requirements of this question is AWS WAF.

Explanation 8

The AWS service that will meet the company’s requirements of implementing custom conditions to filter and control inbound web traffic is option B: AWS WAF (Web Application Firewall).

AWS WAF is a web application firewall that helps protect web applications from common web exploits. It allows you to define custom rules to filter and control inbound web traffic based on various conditions such as IP addresses, geographic locations, HTTP headers, and request attributes.

By using AWS WAF, the company can create rules to allow, block, or monitor incoming web requests to their web application. They can define conditions based on specific criteria, such as blocking requests from certain IP addresses or allowing requests only from specific geographic locations.

AWS WAF integrates with Amazon CloudFront, Application Load Balancer, and API Gateway, making it easy to deploy and manage across different AWS services. It provides real-time monitoring and logging capabilities, allowing the company to gain insights into their web traffic and take proactive measures to protect their application.

In summary, AWS WAF is the appropriate AWS service for implementing custom conditions to filter and control inbound web traffic for the company’s web application hosted on Amazon EC2 instances.

Explanation 9

To implement custom conditions to filter and control inbound web traffic for a web application hosted on Amazon EC2 instances, the best option is AWS WAF. AWS WAF is a web application firewall that helps protect web applications from common web exploits that could affect application availability, compromise security, or consume excessive resources. AWS WAF enables you to create custom rules that block common attack patterns, such as SQL injection or cross-site scripting (XSS), and rules that filter traffic based on IP addresses, HTTP headers, or URI strings.

Amazon GuardDuty is a threat detection service that continuously monitors for malicious activity and unauthorized behavior to protect AWS accounts and workloads. It is not designed to filter or control inbound web traffic.

Amazon Macie is a security service that uses machine learning to automatically discover, classify, and protect sensitive data in AWS. It is not designed to filter or control inbound web traffic.

AWS Shield is a managed DDoS protection service that safeguards applications running on AWS against DDoS attacks. It is not designed to filter or control inbound web traffic.

Therefore, the best option for implementing custom conditions to filter and control inbound web traffic for a web application hosted on Amazon EC2 instances is AWS WAF.

Explanation 10

The correct answer is B. AWS WAF.

AWS WAF is a web application firewall service that helps protect web applications from common web exploits and attacks, such as SQL injection, cross-site scripting, botnets, and DDoS. AWS WAF allows customers to create custom rules and conditions to filter and control inbound web traffic based on various criteria, such as IP addresses, HTTP headers, HTTP methods, query strings, body size, and more. AWS WAF also provides real-time visibility and monitoring of web traffic and web requests, as well as integration with other AWS services, such as Amazon CloudFront, Amazon API Gateway, and Application Load Balancer.

AWS WAF meets the requirements of implementing custom conditions to filter and control inbound web traffic because it enables customers to define their own web security policies and apply them to their web applications. Customers can also update and modify their rules and conditions at any time without affecting the availability or performance of their web applications.

The other options are not as suitable for this scenario because they do not meet the requirements of implementing custom conditions to filter and control inbound web traffic. For example:

• Amazon GuardDuty is a threat detection service that monitors and analyzes AWS account and network activity for malicious or unauthorized behavior. It does not provide any functionality to filter or control inbound web traffic based on custom rules or conditions.
• Amazon Macie is a data security service that uses machine learning and pattern matching to discover, classify, and protect sensitive data stored in AWS. It does not provide any functionality to filter or control inbound web traffic based on custom rules or conditions.
• AWS Shield is a managed DDoS protection service that safeguards web applications from distributed denial-of-service attacks. It does not provide any functionality to filter or control inbound web traffic based on custom rules or conditions.

Explanation 11

The correct answer is B. AWS WAF. AWS WAF is a web application firewall that provides inline inspection of inbound traffic at the application layer to detect and filter against critical web application security flaws from common web exploits. AWS WAF also allows you to implement custom conditions to filter and control inbound web traffic. The other options are not correct because:

• A. Amazon GuardDuty is a threat detection service that monitors for malicious activity and unauthorized behavior, but it does not filter or control inbound web traffic.
• C. Amazon Macie is a data security and data privacy service that uses machine learning and pattern matching to discover and protect sensitive data in AWS, but it does not filter or control inbound web traffic.
• D. AWS Shield is a managed Distributed Denial of Service (DDoS) protection service that safeguards applications running on AWS, but it does not filter or control inbound web traffic.

Explanation 12

Based on the given information, the best answer is B. AWS WAF (Web Application Firewall).

AWS WAF is a web application firewall that helps protect web applications from various types of attacks, including SQL injection, cross-site scripting (XSS), and denial of service (DoS) attacks. It provides customizable rules to filter and control inbound web traffic based on various criteria, such as IP addresses, HTTP headers, and HTTP query strings.

Amazon GuardDuty is a managed threat detection service that provides continuous monitoring and automatic investigation of security threats. While it can detect and respond to security threats, it does not provide the ability to filter and control inbound web traffic.

Amazon Macie is a data security service that provides automated detection and classification of sensitive data, as well as encryption and access control. While it can provide some security features related to web applications, it does not provide the specific functionality of filtering and controlling inbound web traffic.

AWS Shield is a DDoS protection service that provides automated protection against distributed denial-of-service (DDoS) attacks. While it can protect web applications from DDoS attacks, it does not provide the ability to filter and control inbound web traffic.

Therefore, the best answer is B. AWS WAF, as it provides the ability to filter and control inbound web traffic based on customizable rules.

Explanation 13

Here is the detailed answer with comprehensive explanation:

The AWS service that meets the requirement of implementing custom conditions to filter and control inbound web traffic to EC2 instances is AWS WAF (Web Application Firewall).

AWS WAF is a web application firewall that helps protect web applications from common web exploits that could affect application availability, compromise security, or consume excessive resources. With AWS WAF, the company can create custom rules (conditions) to allow, block, or monitor web requests that come to their application hosted on EC2 instances based on conditions like IP addresses, HTTP headers and query strings.

Some key points about AWS WAF:

• It works at the load balancer level in front of the EC2 instances hosting the web application, allowing granular control of inbound requests.
• Rules can be configured to filter traffic based on IP addresses, HTTP headers, request contents etc and take customized actions like allow, block or count.
• Rules are evaluated in order until a match is found, providing flexibility. Default actions can be set as well.

The other options do not meet the requirements:

A) Amazon GuardDuty is a threat detection service, not a web application firewall.

B) Amazon Macie classifies and protects sensitive data in AWS, not for web application filtering.

C) AWS Shield provides DDoS protection but not for custom web traffic filtering control.

Therefore, the most appropriate answer is AWS WAF as it allows implementing custom filtering rules to control inbound web traffic to EC2 hosted applications as per the company’s requirements.

Explanation 14

Option B – AWS WAF (Web Application Firewall) is the appropriate service to implement custom conditions to filter and control inbound web traffic to EC2 instances.

AWS WAF is a web application firewall that helps protect web applications from common web exploits that could affect application availability, compromise security, or consume excessive resources. With AWS WAF, you create collections of rules called web access control lists (web ACLs) that allow, block, or count web requests based on conditions that you specify, such as IP addresses, HTTP headers or SQL injection matches.

AWS WAF inspects incoming web requests based on conditions that you define. Conditions include IP addresses, HTTP headers, SQL injection or cross-site scripting attacks. When a rule is triggered, AWS WAF responds with a default action of ‘allow’ or ‘block’ or counts the request to CloudWatch metrics.

The other options are incorrect:

A) Amazon GuardDuty is a threat detection service that continuously monitors for malicious or unauthorized behavior to help protect AWS accounts and workloads. It does not provide web application filtering capabilities.

C) Amazon Macie is a security service that uses machine learning to automatically discover, classify, and protect sensitive data in AWS. It does not filter or control web traffic.

D) AWS Shield is a managed threat mitigation service that helps protect web applications running on AWS from common exploits such as DDoS attacks. It does not provide custom filtering rules for inbound web traffic.

In summary, the company’s requirement to implement custom conditions to filter and control inbound web traffic to EC2 instances can be met by using AWS WAF, which allows defining web access control lists with customizable rules and conditions to inspect and control web requests.

Explanation 15

The correct answer is B. AWS WAF.

AWS WAF (Web Application Firewall) is a service that allows you to monitor and control incoming web traffic to your EC2 instances. With AWS WAF, you can configure custom conditions to filter and block traffic based on various criteria, such as IP addresses, HTTP headers, and query strings. This service can help protect your web applications from common web exploits and attacks, such as SQL injection and cross-site scripting (XSS).

Amazon GuardDuty (Option A) is a security service that uses machine learning and threat intelligence to detect and alert on suspicious activity in your AWS environment. While it can help identify and respond to security threats, it is not designed to filter and control inbound web traffic.

Amazon Macie (Option C) is a security service that uses machine learning to identify, classify, and protect sensitive data in your AWS environment. It can help you detect and respond to data breaches, but it is not designed to filter and control inbound web traffic.

AWS Shield (Option D) is a service that provides DDoS protection and mitigates automated attacks on your AWS resources. While it can help protect your web applications from certain types of attacks, it is not designed to filter and control inbound web traffic based on custom conditions.

In summary, AWS WAF is the best option for implementing custom conditions to filter and control inbound web traffic to your EC2 instances.

Explanation 16

The correct answer is B. AWS WAF.

AWS WAF is a web application firewall (WAF) that helps protect web applications from common web attacks. It can be used to filter and control inbound web traffic based on a variety of conditions, including IP addresses, URIs, and HTTP headers.

Amazon GuardDuty is a threat detection service that uses machine learning to identify potential threats to your AWS resources. It does not provide the ability to filter or control inbound web traffic.

Amazon Macie is a data security and compliance service that helps you discover, classify, and protect sensitive data in AWS. It does not provide the ability to filter or control inbound web traffic.

AWS Shield is a managed Distributed Denial of Service (DDoS) protection service that helps protect your AWS resources from DDoS attacks. It does not provide the ability to filter or control inbound web traffic.

Therefore, the AWS service that will meet the requirements of this question is AWS WAF.

Explanation 17

The AWS service that will meet the requirement of implementing custom conditions to filter and control inbound web traffic for a web application hosted on Amazon EC2 instances is option B: AWS WAF (Web Application Firewall).

AWS WAF is a web application firewall that helps protect web applications from common web exploits. It allows you to define customizable rules to filter and control the inbound traffic to your web application. With AWS WAF, you can create rules that match specific conditions, such as IP addresses, HTTP headers, URI strings, or request attributes. These rules can be used to block or allow traffic based on the defined conditions.

By using AWS WAF, you can set up custom conditions to filter and control inbound web traffic to your web application hosted on Amazon EC2 instances. It provides a flexible and scalable solution to protect your web application from common security threats, including SQL injection, cross-site scripting (XSS), and more.

To summarize, the correct option for implementing custom conditions to filter and control inbound web traffic for a web application hosted on Amazon EC2 instances is option B: AWS WAF.

Explanation 18

The correct answer is (B) AWS WAF (Web Application Firewall).

AWS WAF is a web application firewall that helps protect web applications from common web exploits and attacks, such as SQL injection, cross-site scripting (XSS), and denial of service (DoS) attacks. It can be used to filter and control inbound web traffic based on custom conditions, making it an ideal solution for the question.

AWS WAF provides several features that can help a company implement custom conditions to filter and control inbound web traffic, such as:

• Security Profiles: AWS WAF allows you to define security profiles that consist of a set of rules that specify which traffic is allowed or blocked. These rules can be based on various criteria, including IP addresses, user agents, and HTTP request headers.
• Geolocation restrictions: AWS WAF allows you to block or allow traffic from specific geographic locations. This can be useful if a company wants to restrict access to its web application from specific regions or countries.
• Request and response filtering: AWS WAF provides rules that can be used to filter incoming HTTP requests and responses based on various criteria, such as HTTP request methods, request headers, and response status codes.
• Custom HTTP headers: AWS WAF allows you to add custom HTTP headers to incoming requests or responses, which can be useful for implementing custom conditions.
• Integration with other AWS services: AWS WAF can be integrated with other AWS services, such as AWS Lambda, Amazon CloudFront, and Amazon S3, to provide additional security features.

Amazon GuardDuty (A) is a cloud-native threat detection and response service that provides visibility and control of AWS accounts, workloads, and applications. While it can be used for security monitoring and threat detection, it is not specifically designed to filter and control inbound web traffic.

Amazon Macie (C) is a security service that uses machine learning to identify and protect sensitive data in AWS. While it can be used to detect and respond to security threats, it is not designed to filter and control inbound web traffic.

AWS Shield (D) is a service that provides web application and API protection against volumetric attacks. While it can be used to protect web applications and APIs from attacks, it is not designed to filter and control inbound web traffic based on custom conditions.

In conclusion, the best answer for the question is (B) AWS WAF, as it provides the necessary features and capabilities to filter and control inbound web traffic based on custom conditions.

Explanation 19

The correct answer is B. AWS WAF.

AWS WAF is a web application firewall that helps protect web applications from common web exploits that can affect applications hosted on Amazon EC2 instances. AWS WAF can be used to block common attack patterns, such as SQL injection and cross-site scripting, and can also be used to allow or block specific traffic based on custom conditions.

Explanation 20

The AWS service that will meet the company’s requirements for implementing custom conditions to filter and control inbound web traffic is option B: AWS WAF (Web Application Firewall).

AWS WAF is a web application firewall that helps protect web applications from common web exploits and provides the ability to define custom rules to filter and control inbound traffic. It allows you to create rules based on IP addresses, geographic locations, HTTP headers, query strings, and more. These rules can be used to allow, block, or count requests coming to your web application.

Here’s a more detailed explanation of why the other options are not the correct choices:

A. Amazon GuardDuty: Amazon GuardDuty is a threat detection service that continuously monitors for malicious activity and unauthorized behavior within your AWS environment. While GuardDuty helps with threat detection, it does not provide the capability to filter and control inbound web traffic like a web application firewall.

C. Amazon Macie: Amazon Macie is a security service that uses machine learning to automatically discover, classify, and protect sensitive data stored in AWS. It focuses on data protection and privacy, rather than filtering and controlling inbound web traffic.

D. AWS Shield: AWS Shield is a managed Distributed Denial of Service (DDoS) protection service that safeguards web applications running on AWS. It provides automatic protection against common and larger-scale DDoS attacks. However, while it helps to protect against DDoS attacks, it does not offer the capability to filter and control inbound web traffic based on custom conditions.

Therefore, the correct option for implementing custom conditions to filter and control inbound web traffic is B: AWS WAF.

Reference

• How to use AWS WAF to filter incoming traffic from embargoed countries | AWS Security Blog (amazon.com)
• Amazon AWS Certified Cloud Practitioner Q&A: Which service or feature can associate with EC2 instance to control inbound and outbound traffic (pupuweb.com)
• Block or allow specific IPs on an EC2 instance | AWS re:Post (repost.aws)
• Automatically block suspicious traffic with AWS Network Firewall and Amazon GuardDuty | AWS Security Blog

Amazon AWS Certified Cloud Practitioner certification exam practice question and answer (Q&A) dump with detail explanation and reference available free, helpful to pass the Amazon AWS Certified Cloud Practitioner exam and earn Amazon AWS Certified Cloud Practitioner certification.

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