Practice IT Operating System Questions and Answers

• In Git version control, which command is used to move changes from the staging area to the local repository, making them part of the project history? 
• In AJAX (Asynchronous JavaScript and XML), which of the following properties must be set to true to prevent the browser from waiting for the response befor...
• Which of the following data structures is most suitable for implementing a priority queue with efficient insertion and deletion operations based on priorit...
• In a Binary Search Tree (BST), which traversal technique results in nodes being visited in ascending order? 
• Which of the following best represents the concept of polymorphism in Object-Oriented Programming? 
• Which of the following statements accurately describes the role of system calls in an operating system? 
• Which CPU scheduling algorithm is known for minimizing the average waiting time for a set of processes? 
• In a multithreaded environment, which of the following synchronization mechanisms is used to prevent race conditions? 
• What is the primary purpose of virtual memory in an operating system? 
• Which type of memory is fastest in terms of data access speed?  
• Which of the following page replacement algorithms is considered optimal and aims to minimize the number of page faults? 
• Which I/O scheduling algorithm is designed to reduce the average response time for disk operations by prioritizing requests based on proximity to the curre...
• What is a primary advantage of using virtual machines in a computing environment? 
• Which of the following best describes the function of cache memory in a computer system? 
• Which backup strategy involves creating copies of data that allow for point-in-time recovery and typically includes both full and incremental backups? ...
• Which of the following practices is essential for maintaining security compliance in both Windows and Unix/Linux environments? 
• Which of the following is a critical component of data protection in both Windows and Unix/Linux environments? 
• What is a best practice for securing remote access in Windows and Unix/Linux environments? 
• Which of the following tools is commonly used for compliance auditing in Unix/Linux environments? 
• What is an effective method to enhance security compliance in data handling practices? 
• Which of the following network topologies is most resilient to node failures? 
• What is the primary function of a router in a network? 
• Which protocol is used to dynamically assign IP addresses to devices on a network? 
• In the context of IPv4 vs. IPv6, which of the following statements is true regarding address space? 
• Which of the following is NOT a type of firewall? 
• Which of the following is a key characteristic of cloud computing? 
• Which cloud service model provides the highest level of control over the underlying infrastructure? 
• In cloud computing, what is the primary benefit of containerization compared to traditional virtualization? 
• Which of the following accurately describes Type 1 hypervisor virtualization? 
• What is the primary purpose of Continuous Integration (CI) in software development? 
• Which query retrieves all records from TableA that have no corresponding records in TableB?
• What is the shortcut for 'Undo' in most software?
• Which unit holds data temporarily and loses it when power is off?
• The error in Simpson's 1/3 Rule is proportional to:
• Which system is used for strategic planning by top executives?
• A Decision Support System (DSS) is best described as:
• MIS is a type of:
• Which keyword is used for inheritance in C++?
• Which access specifier allows data to be accessed only within the class?
• Which of these is a cloud-based IoT platform?