diff --git a/README.md b/README.md
index 5621afe..88f0928 100644
--- a/README.md
+++ b/README.md
@@ -74,4 +74,15 @@ Purchase an ebook on **Google Play Book**: [AWS Cloud Practitioner Study Notes e
 - [Microsoft Azure Fundamentals (AZ-900)](https://certification.kananinirav.com/az-900-microsoft-azure-fundamentals/)
 
 #### If you find the content of this website interesting and helpful, use the “Buy me a Coffee” link below to buy me a coffee.
+
 <a href="https://www.buymeacoffee.com/kananinirav" target="_blank"><img src="https://cdn.buymeacoffee.com/buttons/default-orange.png" alt="Buy Me A Coffee" height="41" width="174"></a>
+
+![gif](https://media.giphy.com/media/gTURHJs4e2Ies/giphy.gif)
+
+<div class="hide-star">
+
+## Star History
+
+[![Star History Chart](https://api.star-history.com/svg?repos=kananinirav/AWS-Certified-Cloud-Practitioner-Notes&type=Date)](https://star-history.com/#kananinirav/AWS-Certified-Cloud-Practitioner-Notes&Date)
+
+</div>
diff --git a/_includes/head-custom-google-analytics.html b/_includes/head-custom-google-analytics.html
index c27c40e..ad67b7f 100644
--- a/_includes/head-custom-google-analytics.html
+++ b/_includes/head-custom-google-analytics.html
@@ -114,4 +114,7 @@
       display: none !important;
     }
   }
+  .hide-star{
+    display: none
+  }
 </style>
diff --git a/practice-exam/practice-exam-11.md b/practice-exam/practice-exam-11.md
index e8ee32f..83dedbc 100644
--- a/practice-exam/practice-exam-11.md
+++ b/practice-exam/practice-exam-11.md
@@ -88,7 +88,7 @@ If this practice exam has been helpful to you please share it with others and re
     - D. Download the AWS Management Console for the new Region.
 
     <details markdown=1><summary markdown='span'>Answer</summary>
-      Correct answer: B
+      Correct answer: C
     </details>
 
 9. Why is it beneficial to use Elastic Load Balancers with applications?
@@ -98,7 +98,7 @@ If this practice exam has been helpful to you please share it with others and re
     - D. They automatically adjust capacity. They are provided at no charge to users.
 
     <details markdown=1><summary markdown='span'>Answer</summary>
-      Correct answer: B
+      Correct answer: C
     </details>
 
 10. Which is the MINIMUM AWS Support plan that allows for one-hour target response time for support cases?
@@ -138,7 +138,7 @@ If this practice exam has been helpful to you please share it with others and re
     - D. Enterprise.
 
     <details markdown=1><summary markdown='span'>Answer</summary>
-      Correct answer: D
+      Correct answer: C
     </details>
 
 14. If a customer needs to audit the change management of AWS resources, which of the following AWS services should the customer use?
@@ -433,7 +433,7 @@ If this practice exam has been helpful to you please share it with others and re
     - D. AWS Discussion Forums.
 
     <details markdown=1><summary markdown='span'>Answer</summary>
-      Correct answer: C
+      Correct answer: C, D
     </details>
 
 43. How can a user protect against AWS service disruptions if a natural disaster affects an entire geographic area?
diff --git a/practice-exam/practice-exam-14.md b/practice-exam/practice-exam-14.md
index d37373f..46d7cce 100644
--- a/practice-exam/practice-exam-14.md
+++ b/practice-exam/practice-exam-14.md
@@ -150,7 +150,7 @@ If this practice exam has been helpful to you please share it with others and re
 
     <details markdown=1><summary markdown="span">Answer</summary>
 
-    Correct Answer: D
+    Correct Answer: B
 
     Explanation:
     - <https://aws.amazon.com/rds/instance-types/>
diff --git a/practice-exam/practice-exam-16.md b/practice-exam/practice-exam-16.md
index 671fb68..275402e 100644
--- a/practice-exam/practice-exam-16.md
+++ b/practice-exam/practice-exam-16.md
@@ -377,7 +377,7 @@ If this practice exam has been helpful to you please share it with others and re
 
     <details markdown=1><summary markdown="span">Answer</summary>
 
-    Correct Answer: BC
+    Correct Answer: BD
 
     Explanation:
     - Your root account should always be protected by Multi-Factor Authentication (MFA).
diff --git a/practice-exam/practice-exam-18.md b/practice-exam/practice-exam-18.md
index c903b4d..548d125 100644
--- a/practice-exam/practice-exam-18.md
+++ b/practice-exam/practice-exam-18.md
@@ -430,7 +430,7 @@ If this practice exam has been helpful to you please share it with others and re
 
     <details markdown=1><summary markdown="span">Answer</summary>
 
-    Correct Answer: C
+    Correct Answer: B
 
     </details>
 
diff --git a/practice-exam/practice-exam-19.md b/practice-exam/practice-exam-19.md
index 8e98925..28f33f9 100644
--- a/practice-exam/practice-exam-19.md
+++ b/practice-exam/practice-exam-19.md
@@ -194,7 +194,7 @@ If this practice exam has been helpful to you please share it with others and re
 
     <details markdown=1><summary markdown="span">Answer</summary>
 
-    Correct Answer: BC
+    Correct Answer: CD
 
     Explanation: <https://aws.amazon.com/solutions/aws-landing-zone/>
 
@@ -292,7 +292,7 @@ If this practice exam has been helpful to you please share it with others and re
 
     <details markdown=1><summary markdown="span">Answer</summary>
 
-    Correct Answer: AD
+    Correct Answer: BD
 
     Explanation: <https://aws.amazon.com/cloudfront/faqs/>
 
@@ -394,7 +394,7 @@ If this practice exam has been helpful to you please share it with others and re
 
     <details markdown=1><summary markdown="span">Answer</summary>
 
-    Correct Answer: BE
+    Correct Answer: BC
 
     </details>
 
@@ -421,7 +421,7 @@ If this practice exam has been helpful to you please share it with others and re
 
     <details markdown=1><summary markdown="span">Answer</summary>
 
-    Correct Answer: A
+    Correct Answer: B
 
     Explanation:
     <https://aws.amazon.com/blogs/apn/the-5-pillars-of-the-aws-well-architected-framework/>
@@ -547,7 +547,7 @@ If this practice exam has been helpful to you please share it with others and re
 
     <details markdown=1><summary markdown="span">Answer</summary>
 
-    Correct Answer: D
+    Correct Answer: C
 
     Explanation:
     <https://docs.aws.amazon.com/emr/latest/ManagementGuide/emr-plan-region.html>
@@ -609,7 +609,7 @@ If this practice exam has been helpful to you please share it with others and re
 
     <details markdown=1><summary markdown="span">Answer</summary>
 
-    Correct Answer: AD
+    Correct Answer: BD
 
     </details>
 
@@ -656,7 +656,7 @@ If this practice exam has been helpful to you please share it with others and re
 
     <details markdown=1><summary markdown="span">Answer</summary>
 
-    Correct Answer: B
+    Correct Answer: C
 
     Explanation:
     - An easy-to-use service for deploying and scaling web applications and web services developed in a number of programming languages.