Practice Basics of Computers Questions and Answers

• Which of the following CPU scheduling algorithms is designed to minimize the average waiting time for processes?             ...
• What is the primary function of the OSI model's transport layer?
• Which protocol is responsible for resolving IP addresses to MAC addresses in a local network?
• Which application layer protocol is primarily responsible for sending emails?
• Which protocol is used by devices to request and obtain an IP address from a DHCP server?
• In a Min-Heap, the node at index i has a value of 12, and the node at index i*2 + 1 has a value of 15. Which of the following statements is correct?
• What is the primary advantage of using localStorage in HTML5 over cookies?
• In which phase of the Software Development Life Cycle (SDLC) is the architecture and design of the product finalized to ensure it meets the requirements?
• Which of the following is not a valid ACID property of a database transaction?
• Which of the following is an advantage of using threads over processes in a modern operating system?
• Which of the following best describes Type 1 virtualization?
• Which command would you use to change the permissions of a file in a Unix/Linux environment?
• Which of the following searching algorithms has the best average-case time complexity when dealing with an unsorted array?
• In Object-Oriented Programming, which of the following correctly demonstrates the concept of Aggregation?
• What is the worst-case time complexity of QuickSort?
• Which of the following data structures is best suited for implementing a breadth-first search (BFS) traversal on a graph?
• Which HTTP method is used to send data to the server and process it without affecting the state of the resource?
• What is the main purpose of the AJAX technique in web development?
• In RESTful APIs, which HTTP method is typically used to completely replace an existing resource with new data?
• Which of the following is NOT a feature of Git in source code management?
• Which of the following testing types is best suited for verifying whether individual units of source code work as intended?
• Which SOLID principle emphasizes that a class should have only one reason to change, promoting single responsibility?
• Which design pattern would you use if you need to ensure that a class has only one instance, with a global point of access to that instance?
• In Black Box Testing, which of the following is the primary focus?
• Which SQL command is used to delete all data from a table but retain the structure for future use?
• Which of the following web application attacks involves tricking a user into executing unwanted actions on a web application where they are authenticated?
• Which tree traversal strategy explores all the children of a node before moving on to the next level?
• Which of the following best describes the role of digital signatures in ensuring security in digital communications?
• Which CPU scheduling algorithm minimizes the average waiting time, assuming all processes arrive at the same time?
• In the context of memory management, which of the following is a key characteristic of the paging technique?
• Which page replacement algorithm results in the lowest page-fault rate for any reference string, but is often impractical to implement?
• Which I/O scheduling algorithm can potentially lead to starvation of certain I/O requests, particularly those located far from the current head position?
• Which of the following best describes the primary advantage of using a hypervisor in managing virtual machines?
• Which storage solution provides the fastest data access speeds?
• What is the primary purpose of cache memory in computer architecture?
• Which of the following networking devices is primarily used to connect different networks and route packets between them?
• What impact does increasing the clock speed of a processor typically have?
• What is the primary purpose of implementing a 3-2-1 backup strategy?
• Which of the following is the most effective method for ensuring compliance with data protection regulations?
• What is the main advantage of using incremental backups over full backups?