Updated review questions

Author: GraemeMalcolm

learn-pr/wwl-data-ai/analyze-images/6-knowledge-check.yml

@@ -18,24 +18,24 @@ quiz:
   questions:
   - content: "What is the purpose of the Azure AI Vision Computer Vision service?"
     choices:
-    - content: "To provide functionality for audio transcription"
+    - content: "To provide reporting and auditing of virtual machines in your Azure subscriptions"
       isCorrect: false
-      explanation: "Incorrect. The Azure AI Vision Computer Vision service is designed to extract information from images, not audio."
-    - content: "To extract information from images"
+      explanation: "Incorrect. The Azure AI Vision Computer Vision service does not audit virtual machines."
+    - content: "To extract information about visual features in images"
       isCorrect: true
-      explanation: "The Azure AI Vision service is designed to help you extract information from images through various functionalities."
-    - content: "To detect the presence and location of specific sounds within an audio file"
+      explanation: "Correct. The Azure AI Vision service is designed to help you extract information from images."
+    - content: "To support video conferencing and web-cam communication"
       isCorrect: false
-      explanation: "Incorrect. The Azure AI Vision Computer Vision service is designed to extract information from images, not audio."
-  - content: "You want to use the Azure AI Vision Analyze Image function to generate an appropriate caption for an image. Which visual feature should you specify?"
+      explanation: "Incorrect. The Azure AI Vision Computer Vision service is not designed for web-cam and video conferencing management."
+  - content: "You want to use the Azure AI Vision Computer Vision service to generate suggested text descriptions for an image. Which visual feature should you specify?"
     choices:
     - content: "Tags"
       isCorrect: false
-      explanation: "Incorrect. To generate a caption, include the DenseCaptions visual feature in your analysis."
+      explanation: "Incorrect. Tags are individual categries that you can apply to images - not descriptions."
     - content: "DenseCaptions"
       isCorrect: true
-      explanation: "Correct. To generate a caption, include the DenseCaptions visual feature in your analysis."
-    - content: "Objects"
+      explanation: "Correct. To generate a list of captions, include the DenseCaptions visual feature in your analysis."
+    - content: "Read"
       isCorrect: false
-      explanation: "Incorrect. To generate a caption, include the DenseCaptions visual feature in your analysis."
+      explanation: "Incorrect. The Read visual feature is used to read text in an image, not to generate a description."