You're designing a system where tasks are processed based on their priority levels. Would you choose a stack or a queue for task management, and why?

  • Linked List
  • Priority Queue
  • Queue
  • Stack
A Priority Queue would be the optimal choice for task management based on priority levels. Unlike a regular queue, a Priority Queue allows for tasks to be processed based on their priority values, ensuring higher priority tasks are executed before lower priority ones. This is essential in systems where task urgency varies, as it ensures critical tasks are addressed promptly, maintaining system efficiency. A stack, on the other hand, follows a Last-In-First-Out (LIFO) approach, which is not suitable for priority-based task management. Linked lists can be used but are less efficient than Priority Queues specifically designed for this purpose.

What are the advantages and disadvantages of IPv6 over IPv4 in the TCP/IP protocol suite?

  • Advantages: Larger address space, better support for mobile devices. Disadvantages: Compatibility issues, initial deployment challenges
  • Advantages: Better security, simpler header structure. Disadvantages: Lack of backward compatibility, potential performance overhead
  • Advantages: Faster routing, reduced network overhead. Disadvantages: Limited scalability, higher administrative complexity
  • Advantages: Improved QoS, easier to manage and configure. Disadvantages: Higher hardware requirements, increased latency
IPv6 offers a larger address space, which is crucial for the growing number of connected devices, and it includes improvements in terms of security and network management. However, IPv6 adoption faces challenges due to compatibility issues with IPv4 and the need for infrastructure upgrades. Understanding these advantages and disadvantages helps in making informed decisions about network protocols.

___________ testing ensures that a software system can handle a specific workload under defined conditions.

  • Compatibility
  • Performance
  • Stress
  • Usability
Performance testing assesses how well a software system performs under various conditions, including workload, response times, scalability, and resource usage. This type of testing helps identify bottlenecks, optimize performance, and ensure the system meets performance requirements. Stress testing specifically focuses on pushing the system beyond its normal operational limits to evaluate its stability and resilience under extreme conditions. Usability testing checks the user-friendliness of the software, while compatibility testing assesses its compatibility with different platforms, devices, or environments.

An effective debugging technique involves ___________ the code to understand its execution flow.

  • Analyzing
  • Compiling
  • Documenting
  • Writing
Debugging often involves analyzing the code line by line to identify errors, understand how data flows through the program, and trace the execution path. This process helps programmers locate and fix bugs, optimize performance, and ensure the code functions as intended. Compiling refers to converting source code into machine-readable instructions, while writing and documenting are activities related to code development and documentation but not specific to debugging.

What is the purpose of the testing phase in the SDLC?

  • Ensure Quality
  • Code Development
  • Resource Allocation
  • Requirement Gathering
The correct option is Ensure Quality. The testing phase verifies that the software meets requirements and functions correctly before release.

A ___________ is a data structure used to store information about the state of each thread in...

  • Thread Descriptor
  • Thread Control Block
  • Thread Scheduler
  • Thread Table
Thread Control Block: This option refers to a data structure used by the operating system to store information about each thread's state and execution context. It contains details such as the thread's program counter, stack pointer, register values, and scheduling information. The thread control block is crucial for the operating system's thread management, including context switching and scheduling decisions.

How does Git differ from other version control systems like SVN?

  • Centralized architecture
  • Decentralized architecture
  • Distributed architecture
  • Hybrid architecture
Git differs from SVN primarily in its decentralized architecture, where each user has a complete copy of the repository. This allows for more flexibility, offline work, and easier branching and merging, compared to SVN's centralized model.

FTP uses two separate ports: ___________ for data transfer and ___________ for control information.

  • Port 20, Port 21
  • Port 20, Port 23
  • Port 21, Port 22
  • Port 22, Port 23
FTP (File Transfer Protocol) uses Port 21 for control information (commands and responses) and Port 20 for data transfer (actual file transfer). This separation enables efficient communication and management.

Explain the concept of closure in JavaScript.

  • A closure is a JavaScript module for encapsulating private variables
  • A closure is a data structure for storing and accessing key-value pairs
  • A closure is a function that captures and remembers its outer scope variables
  • A closure is a function that has access to its parent scope variables
In JavaScript, a closure is a function that has access to its outer (enclosing) function's variables, even after the outer function has finished executing. This concept is fundamental for creating private variables and managing scope in JavaScript programs.

What does HTML stand for?

  • Hyperlink Text Language
  • Hyperlink Text Markup
  • Hyperlinks and Text
  • Hypertext Markup Language
HTML stands for Hypertext Markup Language. It is the standard markup language for creating web pages and web applications. The use of markup language allows developers to structure content on the web and define how it should be displayed in browsers.