| Total Marks80 marks (worth 50%) |

1. What are four (4) advantages and four (4) disadvantages of using animation on websites? * Answers will vary – 1.25 marks per advantage and disadvantage (10 marks total) * Advantages – effective in attracting attention, can have a great impact if used correctly and can assist in understanding * Disadvantages - can cost a lot to produce, can make a website load slower, can detract and become annoying 2. Video compression can be lossless or lossy. What does this mean? Which video compression is best suited for the internet? Justify your answer. * Answers will vary – 6 marks for describing lossless and lossy, 4 marks for justifying which compression is best suited for the internet (10 marks total) * Lossless – reproduces the exact original video data and Lossy only approximates the original data, but provides high compression rates. 3. What is the difference between sampling rate and sampling precision? What is the single biggest factor determining the quality of digital audio? * Sampling rate – rate at which a continuous waveform is sampled. Sampling precision is expressed in bits - 8bit samples for radio quality, 16bit for high fidelity quality. (6 marks) * Biggest factor is sampling rate. (4 marks) 4. You have been employed to create a children’s website. What considerations do you need to take into account in regards to fonts? Would these considerations change if you were creating a website for adults? Justify your answer. * Answers will vary * Need to consider text appearance – font, size, style, alignment, justification, colours (6 marks). Answering the second part of the questions - 4 marks based on quality of answer and justification. 5. What is the difference between a hypertext and hypermedia? Give four (4) examples of when you might use hypertext and/or hypermedia when creating a website. * Answers will vary * Hypertext - Hypertext is basically the same as regular text - it can be stored, read, searched, or edited - with an important exception: hypertext is text with pointers to other text. Hypermedia is a superset of hypertext. Hypermedia documents contain links not only to other pieces of text, but also to other forms of media - sounds, images, and movies. Images themselves can be selected to link to sounds or documents. (6 marks). For each reasonable example students should get 1 mark (total 4 marks) 1. Describe and explain these five (5) multimedia and web based terms: * IP Address * Domain Name * Plug-ins * WYSIWYG * Bandwidth * 2 marks per description * IP Address, every computer connected to the Internet has a unique ID, * Domain Name: AKA website address, read from right to left, * plug-ins: extensions to the browser software, * WYSIWYG Editing: What you see is what you get editing where a page can be viewed and edited as it would appear in the browser rather than at the code level, * Bandwidth: how much data can be sent in a particular period of time 2. You have decided to start your own multimedia organisation. List and describe in detail four (4) multimedia team roles you would need to fill in your organisation. * 2.5 marks per role and description * Producer – responsible for the project business aspects. Usually manages time, money people and resources * Director – responsible for the creative aspect of the project. Usually manages artistic and technical aspects of the project * Writer – can differ but usually creates documents to produce or support the product * Lead development – Oversees the technical aspects of the project * Technical specialist – has specialised skills in one or more aspects of multimedia development 3. What is internet censorship? What are four (4) problems associated with internet censorship?
[2+8=10 marks] * 2 marks for defining internet censorship. Internet censorship is Protection of minors from adult content. Four problems – damages atmosphere of freedom to express, technical limitations, legal problems with blocking, no agreement about what constitutes as offensive content. (2 mark per problem total 8 marks)
ANSWERS ITECH1004 Introduction to Multimedia Date: Reading Commences: Writing Commences: Duration: Total marks: 80 (50%) Instructions to candidates: 1. Print your name and student number on the Examination Paper and Answer Book 2. Attempt ALL questions 3. Do not detach any portion of the examination paper 4. Begin writing, as indicated, after the reading time has ended Materials allowed: Nil DO NOT REMOVE ANY PART OF THIS EXAM PAPER FROM THE EXAMINATION ROOM Student Name: Student ID: Subject: ITECH1004: Introduction to Multimedia Page 2 of 5 CRICOS Provider Number 00103D
1. When compared to digital cel based animation, traditional cel based animation has some major limitations associated with it. Name and briefly describe five (5) such limitations. [2+2+2+2+2 marks] * a labour intensive process * limited by the abilities of the artists (e.g. 3-dimensional effects were too time consuming to produce) * difficult to modify or to correct errors * difficult to manage huge numbers of physical sheets of acetate * colour matching problems 2. Discuss the processes behind and use for the following: o rotoscoping; o chroma-key. [5+5 marks]
Chroma-key:
• allows a particular colour (often blue or green) to be replaced by another image (3)
• used to place actors within a different scene (2) • actor is filmed in front of a blue screen • blue pixels in each frame are replaced with corresponding pixels from another video • e.g. a computer-generated environment
Rotoscoping:
• video/still images are digitally scanned (1) • these are either directly drawn over by a digital artist, or used to derive reference points for digital animation (3)
• Creates very fluid and life like animation

3. Name and explain four (4) ways in which an audio asset could be sourced for a multimedia project. In your answer provide examples of assets to fit each way. [2.5+2.5+2.5+2.5 marks] Award ½ for each way defined and a max of 2 marks for each way including an expanded definition and clear example.
• Purchased or licensed from audio libraries
• music, sound effects, famous speeches etc
• Captured from existing media (digital or otherwise) • e.g. ‘ripping’ music from a CD/DVD • Generated via software or hardware
• Recorded specifically for the project • in the developer’s facilities
• in a recording studio

4. What is a character set? How many characters does the standard ASCII character set contain and how many bits of data does it use? What is the name of the character set developed by a consortium of major computer companies (Microsoft, Apple, Sun etc), which can show a greater amount of characters than the standard ASCII set can? Approximately how many separate characters does this expanded character set contain?
Character set: is a list of the possible displayable characters (2), along with their numeric codes (2)
ASCII: 128 characters (1) & an ASCII code requires 7 bits of data (27=128) with the 8th bit of each byte is unused (1)
Unicode character set (2) – up to 65,000 characters (2)