Breath first Search Algorithm: Visit this URL for a video clip explaining all that you may need to know.
http://www.youtube.com/watch?v=QRq6p9s8NVg
Depth First Search Algorithm:
http://www.youtube.com/watch?v=iaBEKo5sM7w
Friday, 28 June 2013
Thursday, 27 June 2013
COM 330 Advanced HTML questions and answers:
Advanced HTML questions and answers:
11
What is Java script:
It is a scripting language/ programming language that is interpreted or
compiled each time it is run. It ie embedded in HTML Pages.
22
State and describe 8
php data types.
a. Boolean types are the simplest PHP data types.
They have only two possible values and they are true
and false
b.
Integer
types may contain any whole number.
c.
Float or Double types may
contain any decimal number.
d.
String types can contain any number of characters
e.
Array
types are essentially ordered maps in PHP. They are made up of key/value pairs.
f.
Object
types are the instances of class definitions.
g.
Resource
types are normally some link to an external resource that is supplying PHP with
data or receiving data from PHP. This link may be to a socket connection, for
example, a database connection, a connection to an external or shared library
like an image resource, or even a connection to a file handler that’s reading
from disk or some stream.
h.
Null types
only have one possible value and that’s null. It is a
special type that signifies the absence of value.
33
Describe the design
principles of a website:
a.
Contrast: Great contrast can leave a very good
impression to the user. This involves choosing images, color and fonts wisely.
b.
Repetition: Repeating design elements helps create
a consistent look and improves branding. In web design a great way to achieve
this is by repeating elements in the header and footer.
c.
Alignment: Alignment plays an intricate role in
taking your site designs from looking amateur to professional.
d.
Proximity: The last principle is proximity. This
has to do with grouping like elements together and separating those that are
not.
44
What are the key
things in reveal site content in homepage usability:
1.
Make the Site's Purpose Clear: Explain Who You Are and What
You Do
a. Include
a one sentence tagline
b.
Write a Window Title with Good Visibility in
Search Engines and Bookmark Lists
c. Group
all Corporate Information in One Distinct Area
2.
Help Users Find What They Need
a. Emphasize
the Site's Top High-Priority Tasks
b. Include
a Search Input Box
3.
Reveal Site Content
a. Show
Examples of Real Site Content
b. Begin
Link Names with the Most Important Keyword
c. Offer
Easy Access to Recent Homepage Features
4.
Use Visual Design to Enhance, not Define, Interaction Design
a. Don't
Over-Format Critical Content, Such as Navigation Areas
b. Use
Meaningful Graphics
5. Show how an external Java script can be used
<html>
<head>
<script
src="xxx.js"></script>
</head>
<body>
</body>
</html>
6. What questions do you need
to ask when considering website usability?
a. Who
are the users, what do they know, and what can they learn?
b. What
do users want or need to do?
c. What
is the general background of the users?
d. What
is the context in which the user is working?
e. What
has to be left to the machine?
f.
Can
user easily accomplish task in given time?
g. The disabled users can use it?
7.
Give the breadcrumb
navigation design consideration.
a. What should be used to separate link items?
b. How big should it be?
c. Where should breadcrumbs be located?
8. State and outline the elements of a webpage.
a)
Webpage title
b)
URL of the page shown
c)
Information on the page
d)
Style of the page, visual elements, font, colour,
navigation tools, footers
e)
Layout of the page
f)
links
9. What technology is used in eye tracking?
a. Directly observation of eye
b. Invasive mechanic methods
c. Video of eye movement
d. Electrooculography
e. Photoelectric method
10.
Outline the following in relation to precedence as used in
web page design:
·
White space/
Negative space: Areas within once design that are not used. Space around
and between the subject. Also referred to space on a page that was not printed.
o Use of white space helps in scanning different sections of
websites and web pages.
o Gives a chance for the eye to rest.
o It increases readability
·
Padding: Space inside the border. Or space between the border and actual
image or cell content
·
Margins: space outside the border between border and other objects.
11. State and explain the three types of Breadcrumbs:
A breadcrumb is a
Navigation aid used in user interface that allows users to trace or keep track
of their location.
a. Path: To show path users have taken to
arrive at a particular page
b. Location: static. To show the user
where they are in the website hierarchy.
c. Attribute: display attributes of a
particular page.
12. You
can place unlimited number of scripts in your document, so that you have
scripts in both the body and the head sections. Show how this can be
implemented using Java code.
<html>
<head>
<script
type="text/javascript">
....
</script>
</head>
OR:
<html>
<head>
</head>
<body>
<script type="text/javascript">
....
</script>
</body>
13. describe the key things used to evaluate websites:
More......... contact jnng@rocketmail.com for more posts
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