diff --git a/README.md b/README.md
index c27eb7d..45cbb5e 100644
--- a/README.md
+++ b/README.md
@@ -56,7 +56,3 @@ Each Section contains a number of units. **Below Table Link** containing informa
#### If you find the content of this website interesting and helpful, use the “Buy me a Coffee” link below to buy me a coffee.
-
-## Contributors
-
-Please feel free to contribute by making a Pull Request!
diff --git a/practice-exam/practice-exam-3.md b/practice-exam/practice-exam-3.md
index 6c598cc..d282f6e 100644
--- a/practice-exam/practice-exam-3.md
+++ b/practice-exam/practice-exam-3.md
@@ -286,6 +286,19 @@ If this practice exam has been helpful to you please share it with others and re
Correct Answer: B
+ Explanation:
+
+ - Shared Controls Controls which apply to both the infrastructure layer and customer layers, but in completely separate contexts or perspectives.
+ - In a shared control, AWS provides the requirements for the infrastructure and the customer must provide their own control implementation within their use of AWS services.
+ - Examples include:
+ - Patch Management AWS is responsible for patching and fixing flaws within the infrastructure, but customers are responsible for patching their guest OS and applications.
+ - Configuration Management AWS maintains the configuration of its infrastructure devices, but a customer is responsible for configuring their own guest operating systems, databases, and applications.
+ - Awareness & Training AWS trains AWS employees, but a customer must train their own employees.
+ - Customer Specific Controls which are solely the responsibility of the customer based on the application they are deploying within AWS services.
+ - Service and Communications Protection or Zone Security which may require a customer to route or zone data within specific security environments.
+
+ Reference:
+
18. What can AWS edge locations be used for? (Select TWO.)
@@ -417,29 +430,16 @@ If this practice exam has been helpful to you please share it with others and re
-26. Under the shared responsibility model, which of the following is a shared control between a customer and AWS?
- - A. Physical controls
- - B. Patch management
- - C. Zone security
- - D. Data center auditing
+26. Which of the following is entirely the responsibility of AWS, according to the AWS shared responsibility model?
+ - A. Patching of the guest operating system
+ - B. Security awareness and training
+ - C. Physical and environmental controls
+ - D. Development of an IAM password policy
Answer
Correct Answer: C
- Explanation:
-
- - Shared Controls Controls which apply to both the infrastructure layer and customer layers, but in completely separate contexts or perspectives.
- - In a shared control, AWS provides the requirements for the infrastructure and the customer must provide their own control implementation within their use of AWS services.
- - Examples include:
- - Patch Management AWS is responsible for patching and fixing flaws within the infrastructure, but customers are responsible for patching their guest OS and applications.
- - Configuration Management AWS maintains the configuration of its infrastructure devices, but a customer is responsible for configuring their own guest operating systems, databases, and applications.
- - Awareness & Training AWS trains AWS employees, but a customer must train their own employees.
- - Customer Specific Controls which are solely the responsibility of the customer based on the application they are deploying within AWS services.
- - Service and Communications Protection or Zone Security which may require a customer to route or zone data within specific security environments.
-
- Reference:
-