Internet and Web

iMacros is a free Firefox add-on for recording and automating web interactions. While other automation tools exist, the question specifically asks for free Firefox add-ons, and iMacros fits this description. 'Macros' alone is not specific enough and 'both' is incorrect.

WATIR stands for Web Application Testing in Ruby. It is an open-source family of Ruby libraries for automating web browsers. The key distinction is 'Web' not 'Windows' and 'Application Testing' not 'Automation Testing'.

Quality Center 9.2 (now HP ALM) was designed for Internet Explorer as the primary supported web client. During that era, enterprise applications heavily relied on IE-specific technologies like ActiveX. Modern browsers like Firefox and Safari lacked necessary plugin support. Netscape was already obsolete by QC 9.2's release. IE's dominance in enterprise environments made it the practical choice.

To check if a cookie has been set, use isset() on the appropriate $_COOKIE superglobal key - for example, isset($_COOKIE['cookiename']). The setcookie() function is used to SET cookies, not check them. There is no iscookie() function in PHP.

Ajax, REST, JSON, and RSS are all core technologies associated with Web 2.0. SOAP is an older, heavyweight protocol. However, since all listed options are Web 2.0 technologies, 'None of the above' is correct.

The World Wide Web Consortium (W3C) is the international standards organization that develops and maintains web standards.

VI (and its modern variant vim) is a powerful text editor that comes pre-installed on virtually all Unix/Linux systems. It's known for its modal editing interface and keyboard-only operation.

Website response time becomes unacceptable when it exceeds 15 seconds. While 8 seconds is considered the upper bound for 'good' response time, 10-12 seconds is poor but still tolerated. 15+ seconds is widely regarded as the threshold where users abandon the site or the experience is completely unacceptable.

In ASP.NET, the OnClientClick property allows you to run JavaScript before the postback. If the JavaScript function returns 'false', the server-side click event (postback) is cancelled.

HP Quality Center 9.2 was designed primarily to run on Microsoft Internet Explorer (IE) due to its heavy reliance on ActiveX controls, which were not natively supported by other browsers like Firefox or Safari.

RIA stands for Rich Internet Applications. These are web applications that have the functionality and features of traditional desktop applications, typically running in a browser but offering rich user interfaces and responsive interactions. RIAs often use technologies like Flex, Silverlight, or AJAX.

In web context, 'stickiness' refers to a website's ability to retain visitors and encourage repeat traffic. High stickiness means users spend more time on the site and return frequently. Option A is a joke about weather. Option C describes page load time, not user retention. Option D refers to navigation between pages.

In web terminology, a portal is a gateway or entry point to web-enabled applications and sites. It aggregates content and services from multiple sources into a single interface. Option A is a literal definition (portal as doorway). Option C is a physical office concept. Option D is unrelated.

Web syndication is a form of syndication in which website material is made available to multiple other sites or individual subscribers through feeds, allowing reuse of content.

Session management in web applications can use all three methods: cookies (store session ID on client), URL rewriting (append session ID to URLs), and hidden form fields (pass session ID in forms). Each has trade-offs in security and usability. Using multiple methods provides fallback options.