web technology Online Quiz - 47

JCL symbolic parameters resolve directly without adding separators; undefined symbols default to empty. Option B resolves as TBIS+USR (no separator) + literal dot + JCL.CRS + literal dot + DATA+1 = TBISUSR.JCLCRS.DATA1. Option C resolves similarly with trailing dot ignored. Options A and D are incorrect because they don't produce the required string structure.

A foreign key is a key specified in the definition of a referential constraint to link two tables. It is not necessarily a unique key on its own, and it is part of the constraint definition rather than a basic table column definition.

The question asks which statement is WRONG. Option C is incorrect because GUI and database testing are dynamic, but syntax checking and structure investigation are static analysis techniques, not dynamic testing. Volume testing tests performance with large data volumes (not primarily functionality), and regression testing is not exclusively a white-box technique.

Virtual memory minimum size is typically set as a multiple of the initial size, not RAM size. Windows convention sets minimum virtual memory size to 2 times the initial size. This allows room for growth while preventing frequent resizing.

Lips is a karaoke video game developed by iNiS and published by Microsoft Game Studios exclusively for the Xbox 360 console. It was released in 2008 as part of Microsoft's push into casual gaming, competing with singing games like SingStar on PlayStation.

Xerox PARC (Palo Alto Research Center) developed the first graphical user interface in the 1970s, including the WIMP paradigm (windows, icons, menus, pointer). Apple's Lisa and Macintosh later popularized these concepts, but the foundational GUI work was done at Xerox PARC.

Obvious Corporation was the startup incubator founded by Evan Williams, Biz Stone, and Jack Dorsey that developed and launched Twitter in 2006. Orkut was owned by Google, Facebook by Meta, and Hi5 was developed independently by another organization.

Kindle is Amazon's e-book reader product line, first released in 2007. It revolutionized digital reading with its electronic ink display and wireless content delivery. eBay and PayPal are separate companies (though once related), while Barnes & Noble competing Nook e-reader.

Richard Stallman founded the Free Software Foundation (FSF) in 1985 to support the free software movement. He created the concept of copyleft and the GNU Project. The other options (Charles Kane, Nicholas Negroponte, Larry Ellison) are technology figures but not associated with FSF.

Cisco sued Apple in 2007 for trademark infringement over the iPhone name. Cisco had owned the iPhone trademark since 2000 for its VoIP phones. The companies eventually settled, allowing both to use the name. Kindle, iMac, and iPod were unrelated to this dispute.

COMPAQ (founded as COMpatible Computer and Quality) derived its name from Compatibility and Quality. The company was known for producing IBM PC-compatible computers with high quality standards. This naming convention reflected their core business philosophy.

Viacom filed a $1 billion lawsuit against Google in 2007, alleging copyright infringement for YouTube hosting Viacom's content without authorization. The case was eventually resolved in Google's favor after years of litigation. No such billion-dollar lawsuit was filed by Yahoo, Apple, or Sony.

Canonical Ltd. is the company that sponsors and develops Ubuntu Linux. They provide commercial support, development resources, and coordination for the Ubuntu operating system, which is a widely-used Debian-based Linux distribution.

Laptop touchpads use capacitive sensing technology, specifically the capacitive shunt method or matrix approach. When a finger touches the pad surface, it disrupts the capacitive field, and the controller detects the change to determine finger position and movement.

The valid scope attributes for jsp:useBean are page, request, session, and application. Page scope is default, request scope lasts for the HTTP request, session scope persists for the user session, and application scope is shared across the entire application.

Valid elements in struts-config.xml include global-exceptions for exception handling, controller for controller configuration, and action-mappings containing action elements. The config element is not a standard struts-config.xml tag.

In Java, the setDaemon(boolean) method is used to mark a thread as a daemon thread before it is started. Daemon threads are background threads that terminate when all non-daemon threads finish execution.

StringBuilder is mutable and efficient for multiple string modifications. Each string append creates a new string object in memory (strings are immutable), while StringBuilder modifies the same buffer internally, reducing memory allocations and garbage collection pressure. Options A and B incorrectly claim string is a value type (it's a reference type).