Institute of Technology Carlow

jumentousmanlyInternet και Εφαρμογές Web

21 Οκτ 2013 (πριν από 3 χρόνια και 8 μήνες)

133 εμφανίσεις



N
o

1
1
7
a

Institute of Technology Carlow

Department of
Computing & Networking

Autumn 2011

Examinations


Programme
Code

CW_KCCOM_C (APPS)/CW_KCCSY_D
CW_KCCIT_B

Programme
Title

Higher Certificate in Science in Computing
(
Computer
Applications)

BSc in Computing in Systems Management

BSc (Hons) in Computing in Information Technology Management

Year

2

Subject Title

Multimedia Systems

Date


Duration

3 hours


Examiners

Mr P
Loughlin


Dr C Horn


Mr A McDonald



Special
Requirements
:




Instructions to Candidates:

1

Write your Name, Course, Course Year and Class Group on your answer book.



2

Answer
FOUR

questions. Marks as indicated in brackets.

3

Start each question on
a new page.






Question 1

A)

A computer that is built for use in the computer animation industry will have certain
hardware requirements because of the type of work involved in that industry.


Explain what you consider to be important for such a machine
under the following headings.
Your explanation must state why you consider each item to be important.


1.

Processors

2.

RAM

3.

Graphics Capabilities

4.

Sound Capabilities

5.

Data Storage


(10 Marks)


B)

Briefly outline the use of Blender as a tool in the animation indust
ry.

(5 Marks)


C)

Suggest one other software package that you think might be useful in the animation
industry and explain your reason for suggesting it.

(5 Marks)


D)

Will a PC used to play animation need the same level of specification as one
used to prod
uce animation? Fully explain your answer.

(5 Marks)



Question 2

A) Fully describe the RLE compression algorithm giving examples of how it would work
when used to compress example strings of text. Your examples should show one instance
where the algorithm
produces a good result and one where it produces a result where no
compression is achieved.


(10 Marks)




B) The table below contains a list of characters and their probability of occurrence in a given
piece of text.



Character

E

N

H

Q

&

T



a

m牯扡扩b楴y



T

4

3

N

U

O

5



C潮獴牵r琠t桥⁈畦晭f渠瑲ee⁴桡琠 潵汤⁢攠畳e搠瑯⁣潭灲o獳⁴ex琠t桡琠捯湴t楮猠i桥獥⁣桡rac瑥牳⸠
䕸灬慩渠pac栠獴e瀠楮⁴桥⁣潮獴牵r瑩潮o⁴桥⁴ ee⁳漠瑨慴oy潵⁳桯眠瑨o琠y潵o畮摥牳瑡湤⁴桥n
a汧潲楴桭.


⠱〠䵡牫猩




t桡琠t猠瑨攠s潤o⁰牯 u
ced for the “&”.

(5 Marks)


Question 3

A)

When building effective computer interfaces it is important not to overburden the
user’s mental capacities. In the context of human memory fully explain what we mean by the
term CHUNKING. Your explanation should
show how chunking might by applied in the
construction of an interface.

(6

Marks)


B)

Briefly explain the following terms



Primacy Effect



Recently Effect


(4 Marks)

C)

Briefly explain the difference between Active Memory and Inactive Memory

(4 Marks)




D)

Mi
ller's studies on short
-
term memory have shown that short
-
term memory is subject
to certain limitations. Briefly explain what these limitations are and state what you
understand to be “Miller’s magic number”.

(6 Marks)


E)

Briefly explain why you need t
o understand the functioning of human memory when
you are building interfaces.

(5 Marks)



Question 4

A)

All interfaces should implement a natural way of performing a real life task so we
could define a development principle using the heading “Naturalness”. Other aspects are
equally important.

List and fully explain five principles or guidelines that we cou
ld use when building the
interface to any multimedia application. Your explanations should state clearly how the
application of these principles would improve the quality of any interface being developed.

(10 Marks)


B)

Briefly explain what we mean by t
he term "Usability Metrics". Your explanation
should include details of at least three attributes that could be used in the development of
usability metrics.

(5 Marks)


C)

Briefly describe two methods used for “Usability Testing”

(10 Marks)







Question
5

A)

All machines on the Internet are identified by their IP Addresses, yet when we
connect to a web site we typically use a web address like
www.itcarlow.ie
. Fully explain the
system that has been developed to allow
this to work.

(
10

Marks)


B
)

Explain the difference between HTML and XHTML.

Your explanation should show that you clearly understand how XHTML was developed.

(5 Marks)


C
)

Explain what is meant by “The Semantic Web”. In your explanation outline one
problem

that needs to be overcome in building the semantic web and a proposed solution to
that problem.

(5 Marks)


D
)

Briefly explain what is meant by the term “The Deep Web”


(5 Marks)