CS Free MCQ Bank

[ Option A ]

A well-formed XML document follows basic syntax rules, but it does not require validation against a DTD (Document Type Definition). Validation is optional and is needed only for a valid XML document, not just a well-formed one.

Rules for a well-formed XML:

• Tags are case-sensitive.
• Elements must be properly nested.
• Every element must have a closing tag.

[ Option C ]

Raster Graphics are made up of tiny small units called Pixels. A pixel is the smallest individual point or dot in a digital image.
Each pixel stores color and brightness information. When many pixels combine together, they form a complete image.
For example, a resolution of 1920×1080 means the image contains 1920 columns and 1080 rows of pixels.

[ Option B ]

Vector Graphics are created using mathematical lines, curves, and shapes called Paths. These paths are defined by points, directions, and formulas instead of pixels.
Because vector graphics use paths, they can be resized without losing image quality.
Vector graphics are commonly used for designing logos, icons, and technical drawings because they can be resized without losing image quality.

[ Option A ]

In XPath, the @ symbol is specifically used to select attributes of an element rather than the element itself. Attributes provide additional information about elements and are accessed differently from child nodes.
For example, given the XML element <student id="101" name="Suresh"/>, the XPath expression /student/@id is used to select the id attribute of the student element, which returns the value 101.

[ Option C ]

RSS is a Web Technology used to distribute and update content automatically from websites such as blogs, news portals, and podcasts. It allows users to receive updates without visiting each website manually.
The RSS stands for "Really Simple Syndication," which captures how straightforward it is to syndicate (distribute) content across the web.

[ Option B ]

In web applications, user-related information can be stored either on the client side or the server side.
A session is a server-side storage mechanism used to store user data temporarily while the user interacts with a website. The data is stored on the server and is associated with a unique Session ID.