CCA 3.09: Preventing Common Exploits

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Questions and Answers

What is the primary purpose of Auto Scaling in the context of DDoS mitigation?

To block traffic from known attackers

To distribute incoming traffic across multiple servers

To scale servers up or down in response to changes in traffic (correct)

To prioritize traffic based on geographical location

What type of security mechanism is depicted in the diagram, situated between the edge location and the web application servers?

Web Application Firewall (WAF) (correct)

Intrusion Detection System (IDS)

Virtual Private Network (VPN)

Load Balancer

What is the primary function of the DMZ in the given network architecture?

To act as a buffer zone between the public internet and the private subnet (correct)

To prioritize traffic based on QoS requirements

To filter incoming traffic based on IP addresses

To encrypt data at rest and in transit

Which of the following is NOT a component of the AWS Shared Responsibility Model?

Physical Security Signup and view all the answers

What is the primary purpose of a Security Group in the context of AWS?

To filter incoming traffic based on IP addresses Signup and view all the answers

What is the primary function of AWS IAM?

To manage user access to AWS resources Signup and view all the answers

What is the primary purpose of CloudFront in the context of DDoS mitigation?

To cache frequently accessed content at edge locations Signup and view all the answers

What is the primary purpose of ELB in the context of DDoS mitigation?

To distribute incoming traffic across multiple servers Signup and view all the answers

What is the primary purpose of AWS WAF?

To protect web applications from common web exploits Signup and view all the answers

What is the main difference between Authentication and Authorization?

Authentication is about verifying identity, while Authorization is about granting access to resources Signup and view all the answers

What is the primary benefit of using AWS IAM?

To enhance security and compliance for AWS resources Signup and view all the answers

What is the main purpose of AWS CloudTrail?

To monitor and log AWS API calls for security and compliance Signup and view all the answers

What is the primary benefit of using encryption for data in transit?

To protect data from unauthorized access and theft Signup and view all the answers

What is the main difference between AWS Security and Compliance Programs?

Security programs focus on protecting data, while Compliance programs focus on meeting regulatory requirements Signup and view all the answers

What is the primary benefit of using AWS STS?

To provide temporary security credentials for identities and services Signup and view all the answers

What is the main purpose of AWS Cognito?

To provide identity and access management for web and mobile applications Signup and view all the answers

What is the primary purpose of OAuth 2.0 standard?

To delegate authorization to devices and apps using tokens Signup and view all the answers

In the context of network security, what is the primary function of a firewall?

To control incoming and outgoing network traffic Signup and view all the answers

What is the AWS Shared Responsibility Model primarily concerned with?

Dividing security responsibilities between AWS and its customers Signup and view all the answers

What is the primary purpose of AWS IAM?

To manage user identities and access control in AWS Signup and view all the answers

What is the primary function of AWS CloudTrail?

To monitor and log AWS API calls and resource usage Signup and view all the answers

What is the primary purpose of security groups in a network?

To filter and restrict network traffic to specific resources Signup and view all the answers

Study Notes

Security Concepts

Access Control involves Authentication and Authorization
Authentication establishes identity through username and password, access key ID and secret access key, federated identity with Single Sign-on (SSO), Identity providers, OpenID Connect, SAML, Multi-factor Authentication, and Web applications
Authorization determines what resources can be accessed and involves control at multiple levels: network control, file system permissions, OS policies, and applications

AWS Security

AWS IAM involves Users, Groups, Roles, Authorization using Policies, and securing AWS accounts
AWS Authentication includes Cognito, Directory service, STS, Web Identity
Securing Data involves encryption in transit and at rest
Securing the System involves DDOS mitigation, AWS WAF
Auditing involves AWS CloudTrail and Config

AWS Shared Responsibility Model

AWS is responsible for security of the cloud
Customers are responsible for security in the cloud
Shared responsibility includes infrastructure, platform, and application security

DDoS Mitigation

DDoS mitigation involves Auto Scaling, WAF, CloudFront, ELB, and security groups
DMZ, public subnet, and private subnet are used in DDoS mitigation architecture