HTML Interview Questions :
What does HTML stand for?
Answer :
HTML stands for Hyper
Text Markup Language. Hyper Text is the organization of information units into
connected associations that a user can choose to make. Markup Language is how
to display the objects. Therefor, HTML is the organization of data displayed
onto a web page.
What are stand-alone procedures?
Answer :
Procedures that are not part of a package are
known as stand-alone because they independently defined. A good example of a
stand-alone procedure is one written in a SQL*Forms application. These types of
procedures are not available for reference from other Oracle tools. Another
limitation of stand-alone procedures is that they are compiled at run time,
which slows execution.
Was XML created to replace HTML? Or
will XML ever replace HTML?
Answer :
It is a fact that the problem with HTML is that
combines “data” with the “presentation” details, but XML was not necessarily
created to replace HTML, rather it was created with a much broader vision – a
universal format to structured data. HTML is, and will remain, the primary
backbone of the Web. However, the benefits of XML will soon be seen in HTML as
well, which is evolving as XHTML 1.0 (HTML 4.01 in XML syntax). So, to
answer the question: No, XML was not created to replace XML and it will not
completely replace HTML; however it is being used to update HTML for better
Web.
What is an HTML tag?
Answer :
An HTML tag is a syntactical construct in the HTML
language that abbreviates specific instructions to be executed when the HTML
script is loaded into a Web browser. It is like a method in Java, a function in
C++, a procedure in Pascal, or a subroutine in FORTRAN.
What is JSP?
Answer :
Let’s consider the answer to that from two
different perspectives: that of an HTML designer and that of a Java Programmer.
If you are an HTML designer, you can look at JSP technology as extending
HTML to provide you with the ability to seamlessly embed snippets of Java code within your HTML
pages. These bits of Java code generate dynamic content, which is embedded
within the other HTML/XML content you author. Even better, JSP technology
provides the means by which programmers can create new HTML/XML tags and
JavaBeans components, which provide new features for HTML designers without
those designers needing to learn how to program.
How HTML Works?
Answer :
HTML
is made up of a series of tags, which are similar to commands, telling the web
browser what to do. These tags can be typed into any normal text editor such as Notepad or Simple
text, and when in the right order, form a web page. Writing HTML then is
simply, writing tags. Throughout this tutorial, you will be learning different
tags in HTML.
How do I know if my HTML is correct?
Answer :
It’s good to validate your HTML. Just because you
can see the Web page ok on your browser doesn’t mean every browser will show it
that way, or even be able to access the Web page. Browsers attempt to “work
around” HTML errors, and the differences can be subtle or drastic. That’s why
the folks at WC3 have worked up the specifications of what works for every
browser. Although some may display it a little different, at least you know
they can access your page. (The different browser programs have their own set
of “whistles and bells” that just won’t do the same… especially Microsoft
Internet Explorer and Netscape Navigator.)
What is XHTML?
Answer :
Is simple words, XHTML, or Extensible HTML, is HTML 4 with XML rules
applied to it (each begin tag must have an end tag, attribute values in
single/double quotes, etc.). However, the overall vision of XHTML is much more
than that. In addition to using XML syntax for HTML, XHTML also encloses
specifications such as XHTML Basic (minimal set of modules for devices such as
PDAs), XForms (represents the next generation of forms for the Web, and
separates presentation, logic, and data), XML Events (provides XML languages
with the ability to uniformly integrate event listeners and associated event
handlers), etc.
Differences Between XML and HTML
Answer :
Some Differences between XML and HTML:
|
XML
|
HTML
|
|
User definable tags
|
Defined set of tags designed for
web display
|
|
Content driven
|
Format driven
|
|
End tags required for well
formed documents
|
End tags not required
|
|
Quotes required around
attributes values
|
Quotes not required
|
|
Slash required in empty tags
|
Slash not required
|
How do you create tabs or indents in
Web pages?
Answer :
There was atag proposed for HTML 3.0, but it was
never adopted by any major browser and the draft specification has now expired.
You can simulate a tab or indent in various ways, including using a transparent
GIF, but none are quite as satisfactory or widely supported as an official tag
would be.
Answer :
The Mac and the PC use slighly different color
palettes. There is a 216 “browser safe” color palette that both platforms
support; the Microsoft color picker page has some good information and links to
other resources about this. In addition, the two platforms use different gamma (brightness)
values, so a graphic that looks fine on the Mac may look too dark on the PC.
The only way to address this problem is to tweak the brightness of your image
so that it looks acceptable on both platforms.
What are dimensions?
Answer :
Dimensions
are categories by which summarized data can be viewed. E.g. a profit summary in
a fact table can be viewed by a Time dimension, Region dimension, Product
dimension.
Answer :
Init() When the page is instantiated, Load() -
when the page is loaded into server memory,PreRender () - the brief
moment before the page is displayed to the user as HTML, Unload() - when
page finishes loading.
What is the property available to
check if the page posted or not?
Answer :
The Page_Load event handler in the page checks for
IsPostBack property value, to ascertain whether the page is posted. The
Page.IsPostBack gets a value indicating whether the page is being loaded in
response to the client postback, or it is for the first time. The value of
Page.IsPostBack is True, if the page is being loaded in response to the client
postback; while its value is False, when the page is loaded for the first time.
The Page.IsPostBack property facilitates execution of certain routine in
Page_Load, only once (for e.g. in Page load, we need to set default value in controls,
when page is loaded for the first time. On post back, we check for true value
for IsPostback value and then invoke server-side code to update data).
Answer :
In situations like, where the copy on write bit of
a page is set and that page is shared by more than one process, the Kernel
allocates new page and copies the content to the new page and the other
processes retain their references to the old page. After copying the Kernel
updates the page table entry with the new page number. Then Kernel decrements
the reference count of the old pfdata table entry.
In cases like, where the copy on write bit
is set and no processes are sharing the page, the Kernel allows the physical
page to be reused by the processes. By doing so, it clears the copy on write
bit and disassociates the page from its disk copy (if one exists), because
other process may share the disk copy. Then it removes the pfdata table entry
from the page-queue as the new copy of the virtual page is not on the swap
device. It decrements the swap-use count for the page and if count drops to 0,
frees the swap space.
How do I specify page breaks in HTML?
Answer :
There is no way in standard HTML
to specify where page breaks will occur when printing a page. HTML was designed
to be a device-independent structural definition language, and page breaks
depend on things like the fonts and paper size that the person viewing the page
is using.
The page looks good on one browser,
but not on another.Why?
Answer :
There are slight differences between browsers,
such as Netscape Navigator, Mozilla Firefox,Microsoft Internet Explorer, in
areas such as page margins. The only real answer is to use standard HTML tags
whenever possible, and view your pages in multiple browsers to see how they
look.
Answer :
Use the CELLPADDING and CELLSPACING attributes of
the table tag.
What does the broken image icon mean?
Answer
:
That means an image should go in that space, and
there is a file by the name of the image that is supposed to go there, but the
browser cannot display it. Most likely the image has been corrupted in the FTP
transfer or is an image format other than .gif or .jpg.
Do I need to have the # mark in front
of color hex codes?
Answer :
Not by today’s browser requirements. However, there
are still some older level browsers out there and it would be nice to allow
them to read your pages with few or no errors.
How do I make a graphic a link?
Answer :
Including
the "img" tag between the "a href" tag and the
"a" closing tag:
<A xhref="http://www.snowhawk.com/wildlife.html"><IMG
xsrc="leopard.jpg" WIDTH="25" HEIGHT="25"
ALIGN="top" BORDER="0" ALT="link to
wildlife"></A>
VB Script Interview Questions :
What is VB Script ?
Answer :
VB Script is a scripting language developed by
Microsoft. With the help of this scripting language you can make your web pages
more dynamic and interactive.
VB Script is a light version of Visual basic and it has an easy syntax.
VB Script is widely used and most popular as a client side scripting language. In
html language you use < and > around the tags. But you can use many tags
inside one pair of < % and % >. For Printing a variable you can use <
% = % >.
What is the scope of a variable ?
Answer :
The scope of a variable defines whether a variable
will be accessible in the whole function or will be accessed only to its local
instance.I have defined earlier in the tutorials that they can also be deemed
as a local variables or can be deemed as a global variables.
For ex.
< script >
Dim name
Sub cmdclickme_OnClick
Dim age
End Sub
< / script >
It is clear from the above example about the scope
of the variable that the variable name will be available to the whole script as
it is declared outside sub procedure so enhance his behaviour to the global as
compared to the variable name age which is defined inside the sub procedure
hence making his behaviour local and will be only accessed in this sub
procedure only.
How to Assign values to a variable ?
Answer :
Simple you have to declare a variable name and assign
any value.
For ex. Name = “Chandra”
Status=False
Age=30
Now all the above variables has been assigned
values.This is a simple way to declare and assign related values to a variable.
Answer :
VbScript deals with a single datatype called
variant. Datatype means the kind of the data a variable will store.It can be a
character data,string data,number data , byte data and a Boolean data. But you
don’t have to worry in Vb Script as it only has a datatype of variant to store
any type of data.
|
Sub Type
|
Description
|
|
Boolean
|
True or False
|
|
Integer
|
Integers between –32768 and 32767
|
|
Long
|
Long data between –2147483648 and 2147483647
|
|
String
|
Character Strings
|
|
Single
|
Large Number with decimal points
|
|
Null
|
No valid data
|
|
Currency
|
Monetary values
|
|
Byte
|
Integers from 0 and 255
|
|
Date
|
Date and time
|
|
Double
|
Large numbers with decimal points
|
How to Add VB script to web pages ?
Answer :
There are scripting languages like Javascript and Vbscript and they are designed as an extension
to html language.The Web browsers like Microsoft Internet Explorer receives the
scripts along with the rest of the web page document. It is the browser
responsibility to parse and process the scripts. These scripts are widely used
as a client side scripting languages.
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