a. True
b. False
Answer: b. False
Explanation: The above statement is false. When executing scripts in an HTML page, the page becomes unresponsive until the script is finished.
14. Which of the following is/are the advantage(s) offered by application cache?
a. Offline browsing
b. Speed
c. Reduced server load
d. All the mentioned above
Answer: d. All the mentioned above
Explanation: Application caching enables the web application to store its resources like HTML, CSS, Images, JavaScript pages etc. in the browser, so that the application can be made fully or partially accessible during offline or when the Internet connection is not available. It reduces the server load and increases the speed.
15. A manifest file needs to be served with the correct media type, which is "text/cache-manifest" and that must be configured on the web server.
a. True
b. False
Answer: a. True
Explanation: The above statement is true. A manifest file needs to be served with the correct media type, which is "text/cache-manifest" and that must be configured on the web server. If the manifest attribute is not specified, the page will not be cached (unless the page is specified directly in the manifest file).
16. Files listed under __________ header require a connection to the server, and will never be cached.
a. CACHE MANIFEST
b. NETWORK
c. FALLBACK
d. None of the above
Answer: b. NETWORK
Explanation: Files listed under NETWORK header require a connection to the server, and will never be cached.
17. Which method is used to mask off certain areas or clear sections from the canvas?
a. Canvas Transform
b. Canvas Rotation
c. Canvas Scaling
d. Canvas Composition
Answer: d. Canvas Composition
Explanation: Canvas Composition method is used to mask off certain areas or clear sections from the canvas. Canvas provides compositing attribute globalCompositeOperation which affect all the drawing operations.
18. Which version does not support for HTML5 canvas natively?
a. Firefox
b. Safari
c. Chrome
d. IE8
Answer: d. IE8
Explanation: Internet Explorer 8 does not support for HTML5 canvas natively. IE8 does not allow styling of unknown elements.
