CSS stands for Cascading Style Sheets. The term 'cascading' refers to the way style rules are applied in priority order - inline styles override internal styles, which override external styles, and more specific selectors override general ones. This hierarchy allows for flexible and powerful web page styling.

The correct HTML syntax for linking an external style sheet is using the element with rel='stylesheet', type='text/css', and href pointing to the CSS file. The

External stylesheets should be linked in the section using the tag. This allows the browser to load styles before rendering the page content, preventing flash of unstyled content. Placing it at the end of the document would delay styling.

The

The style attribute allows you to apply CSS directly to individual HTML elements. It's written as style="property: value;" and takes precedence over external or internal styles. The class attribute references external classes, while font is not a valid style attribute.

CSS syntax requires a selector, followed by curly braces containing property-value pairs separated by colons. Each declaration ends with a semicolon. Option C shows correct syntax: body {color: black;} where body is the selector and color: black is the declaration.

CSS only supports multi-line style comments enclosed between /* and */. Single-line comments starting with // (common in JavaScript and C++) or ' (used in VB/VBA) are not valid in standard CSS and will cause parsing errors or be ignored.

The background-color CSS property is used to change an element's background color. The color property only changes text color, while bgcolor is an outdated HTML attribute that should not be used in modern CSS.

To style all elements of a specific type in CSS, you use the element selector directly. Therefore, h1 targets all <h1> elements. The other options use class selectors (.all or .h1), which would only target elements with those specific class names rather than all <h1> tags.

The color CSS property is used to change the text color (foreground color) of an element. There is no text-color or fgcolor property in CSS. The property name is simply color, applied to the text content of the element.

CAS is incorrectly expanded as 'Component Authorization Specification'. The correct expansion in .NET framework is 'Code Access Security' - a security mechanism that restricts what managed code can do based on permissions. The other options are correct: CTS is Common Type System, CLS is Common Language Specification, and FCL is Framework Class Library.

Generics were introduced in .NET Framework 2.0 as a major feature allowing type-safe reusable code. The .NET Compact Framework existed before 2.0. IPv6 support was added in 2.0 but is less distinctive. Windows CardSpace arrived later with .NET 3.0.

.NET Framework versions 2.0, 3.0, and 3.5 all used the same CLR 2.0 runtime. There is no such thing as a '.NET Framework 3.0 CLR' - the runtime versions are CLR 1.x, 2.0, 4.0, and .NET 5+. Statement D falsely claims a 3.0 CLR exists.

ADO.NET Entity Framework was the new ORM framework introduced with .NET Framework 3.5 SP1. It provided object-relational mapping capabilities and became Microsoft's primary data access technology. 'ADO.ORM', 'ADO.Hibernate', and 'ORM.ADO' are fictional names.

The option has a typo ('WCG' instead of 'WCF') but correctly identifies the false statement. WCF supports message reliability WITH ordered delivery, not without. Standard WCF bindings include MSMQ, WS, Basic, and TCP. WCF supports issued token authentication and defines multiple contract types.