GMU IT 213 FINAL EXAM FINAL PAPER 2026
SOLVED QUESTIONS AND FULL SOLUTION
UPDATED
◉ JavaScript
What is it used for?
What tool is used?
What language is used?
What are it's strengths?
Answer: -Inserted directly into the HTML code
-JavaScript must be enabled in browsers
-Executed by browsers
-Frequent uses
-Verify form information
-Create rollover buttons
-Advertising banners
-Pop-up windows
◉ Java Applets
What is it written in?
How is executed?
,Answer: -Written in Java using JDK or Visual J++
-Executed in a browser and sent as a separate file, along side the
HTML document
◉ Java Servlets
How is it executed?
Answer: Executed from the server
◉ Blogs
Define and give example
Answer: -Popular way to promote Web site interactivity
-E.g., Blogger, WordPress, and Typepad
◉ Live Chat
What is it?
Give examples
Answer: -Live chat allows visitors to ask questions about products
or services in real time
-E.g., Provide Support, CustomerReach, and BoldChat, used in e-
commerce site
◉ analog
,Answer: Sound in the natural world is analog
◉ digital
Answer: Sound must be in digital format to be used on the Web.
◉ Basic Digital Audio Concepts
Answer: Sampling rate; Bit depth; Channel (mono/stereo)
◉ Sampling Rate
Answer: - Number of samples taken per second
-Standard sample rates: 8 KHz (AM radio), 11.025 KHz, 11.127 KHz,
22.05 KHz, 44.1 KHz (CD quality), 48KHz (DVD quality)
◉ Bit depth
Answer: -Number of bits used to sample the sound
-Standard bit depth: 8-bit (telephone), 16-bit (CD quality), to 20-,
24-, 32-, and 48-bit depths (high-end digital audio)
◉ Channel
Answer: Mono: one-channel
Stereo: two-channel
, ◉ Uncompressed Audio File Formats
Answer: WAV; AU; AIFF; MIDI
◉ AU
Answer: Sparc-audio, or u-law format, is an older type of sound file
format that generally has poorer sound quality and other files.
◉ WAV
Answer: Waveform (or wave) files are the most common sound
format on the Windows platforms; it is also supported on Macs.
◉ AIFF
Answer: Audio Interchange File Format is very common on Macs. It's
also supported on the Windows platforms, but is not very common
on the Web.
◉ MIDI
Answer: Musical Instrument Digital Interface format contains
instructions to recreate a musical sound rather than a digital
recording of the sound itself. It is well-supported and files are very
small, but it is useful only for certain applications because its
reproduction quality is often limited by PC playback hardware.
◉ Audio File Compression
SOLVED QUESTIONS AND FULL SOLUTION
UPDATED
◉ JavaScript
What is it used for?
What tool is used?
What language is used?
What are it's strengths?
Answer: -Inserted directly into the HTML code
-JavaScript must be enabled in browsers
-Executed by browsers
-Frequent uses
-Verify form information
-Create rollover buttons
-Advertising banners
-Pop-up windows
◉ Java Applets
What is it written in?
How is executed?
,Answer: -Written in Java using JDK or Visual J++
-Executed in a browser and sent as a separate file, along side the
HTML document
◉ Java Servlets
How is it executed?
Answer: Executed from the server
◉ Blogs
Define and give example
Answer: -Popular way to promote Web site interactivity
-E.g., Blogger, WordPress, and Typepad
◉ Live Chat
What is it?
Give examples
Answer: -Live chat allows visitors to ask questions about products
or services in real time
-E.g., Provide Support, CustomerReach, and BoldChat, used in e-
commerce site
◉ analog
,Answer: Sound in the natural world is analog
◉ digital
Answer: Sound must be in digital format to be used on the Web.
◉ Basic Digital Audio Concepts
Answer: Sampling rate; Bit depth; Channel (mono/stereo)
◉ Sampling Rate
Answer: - Number of samples taken per second
-Standard sample rates: 8 KHz (AM radio), 11.025 KHz, 11.127 KHz,
22.05 KHz, 44.1 KHz (CD quality), 48KHz (DVD quality)
◉ Bit depth
Answer: -Number of bits used to sample the sound
-Standard bit depth: 8-bit (telephone), 16-bit (CD quality), to 20-,
24-, 32-, and 48-bit depths (high-end digital audio)
◉ Channel
Answer: Mono: one-channel
Stereo: two-channel
, ◉ Uncompressed Audio File Formats
Answer: WAV; AU; AIFF; MIDI
◉ AU
Answer: Sparc-audio, or u-law format, is an older type of sound file
format that generally has poorer sound quality and other files.
◉ WAV
Answer: Waveform (or wave) files are the most common sound
format on the Windows platforms; it is also supported on Macs.
◉ AIFF
Answer: Audio Interchange File Format is very common on Macs. It's
also supported on the Windows platforms, but is not very common
on the Web.
◉ MIDI
Answer: Musical Instrument Digital Interface format contains
instructions to recreate a musical sound rather than a digital
recording of the sound itself. It is well-supported and files are very
small, but it is useful only for certain applications because its
reproduction quality is often limited by PC playback hardware.
◉ Audio File Compression
