General Technology Knowledge Quiz

Load balancing can absolutely be done for URLs. This is known as Layer 7 (application layer) load balancing where requests are distributed based on URL paths, hostnames, or other HTTP request properties. This is a common practice in web application architectures.

APIs are fundamental to modern DevOps and cloud infrastructure. They can be used to deploy applications, monitor system health, manage database clusters, and migrate workloads to different servers. REST APIs, GraphQL, and vendor-specific APIs (AWS API, Azure REST API, etc.) provide all these capabilities.

In PHP, assignment with $a = $b creates a copy of the value, which is passing by value. The & operator creates a reference to the original variable instead of copying it. Options A and B both use the reference operator &, while option C uses invalid syntax.

In character escape sequences, \23 represents an octal value (base-8) while \x23 represents a hexadecimal value (base-16). Octal 23 equals decimal 19, while hex 23 equals decimal 35. This notation is common in C-style languages and string literals.

The print_r function formats and outputs human-readable information about a variable, including complex structures like arrays. Using echo directly on an array produces an Array-to-string conversion notice and prints only the word 'Array'.

In PHP, 'print' is a language construct that behaves like a function but doesn't require parentheses. It always returns 1, making it usable in expressions. 'echo' is also a construct but cannot be used in expressions. 'printf' is a true function that requires parentheses.

PHP uses max_execution_time in php.ini to set the maximum time a script can run. This prevents runaway scripts from consuming server resources. Option C is the correct configuration directive as documented in PHP's runtime configuration.

PHP supports full date and time manipulation tools, including 64-bit integer timestamps on modern systems and robust DateTime classes, allowing developers to easily fix or avoid Y2K compliance issues.

In Visual Basic / VBA, UCase converts a string to uppercase. When passed a boolean value like True, it implicitly converts the boolean to its string representation 'True' and then capitalizes it to 'TRUE'.

Blu-ray discs have the highest storage capacity among the options: standard single-layer Blu-ray holds 25GB, dual-layer holds 50GB. DVDs hold 4.7GB (single-layer) or 8.5GB (dual-layer). CDs hold 700MB. Floppy diskettes hold only 1.44MB. Blu-ray clearly has the most information capacity.

The first network email was sent by Ray Tomlinson in late 1971 over ARPANET, introducing the '@' symbol to route messages to specific users on other hosts. The other options are incorrect historical dates for this event.

Apple's very first logo in 1976 (designed by Ronald Wayne) featured Sir Isaac Newton sitting under an apple tree, with a quote from Newton about gravity. The rainbow-colored apple (with and without a bite) came later in 1977, designed by Rob Janoff. The original Newton logo was quickly replaced.

.AVI (Audio Video Interleave) is a well-known PC video file format introduced by Microsoft in 1992. .MP3 is an audio format (not video). .MVE is a less common video format used in some games, but .VDO is not a standard PC video extension. Among these, .AVI is the most established PC video file extension.

DOS (Disk Operating System) is a Microsoft operating system that predates and is completely separate from the Unix family. Unix and Linux are part of the same OS lineage, while DOS represents a different architecture and command structure entirely.

Cable internet uses coaxial or fiber-optic cables to deliver high-speed data, classifying it as broadband. 28.8k and 56k are dial-up modem speeds (narrowband), and Modem is the device, not a connection type.

Windows 9x used two registry files: USER.DAT (user-specific settings) and SYSTEM.DAT (hardware and system-wide settings). autoexec.bat and config.sys are DOS-era configuration files, while win.ini is a legacy Windows 3.x initialization file.

Tim Berners-Lee invented the World Wide Web in 1989 at CERN. Alan Kay pioneered object-oriented programming, while Jack Kilby and Robert Noyce invented the integrated circuit.

The original Intel Celeron processor (Covington core, 266 MHz and 300 MHz) lacked any Level 2 (L2) cache. This severely degraded its performance compared to Pentium II processors, making it highly unpopular until Intel released the Mendocino core with integrated L2 cache.