Practice Algorithms Questions and Answers

• Which of the following is a primary characteristic of Black Box Testing in software testing?
• In a relational database, what is the purpose of a foreign key?
• What is normalization in the context of databases?
• Which type of attack involves injecting malicious SQL code into a web application?
• Which of the following is a characteristic of a Brute Force Attack?
• What will be the output of the following code snippet that demonstrates stack usage? stack = [] stack.append(1) stack.append(2) stack.append(3) print(...
• What is the primary purpose of a digital signature in cryptography?
• Which key is used to decrypt a message that has been encrypted with a recipient’s public key in asymmetric encryption?
• In Breadth-First Search (BFS), what data structure is typically used to keep track of the nodes to be explored?
• Which SQL function is used to count the number of rows in a table?
• In the context of inter-process communication (IPC), which of the following mechanisms is used to ensure that only one process accesses a resource at a tim...
• Which network device is used to connect two different networks and route packets between them?
• Which cloud service model provides developers with a platform to develop, run, and manage applications without worrying about the underlying infrastructure...
• In virtualization, what is the primary role of a hypervisor?
• Which application layer protocol is used to retrieve emails from a remote server?
• Which type of NAT (Network Address Translation) allows multiple private IP addresses to share a single public IP address?
• What is the primary function of a firewall in network security?
• Which type of firewall operates at the application layer of the OSI model and inspects incoming and outgoing data packets?
• Which of the following is an example of inheritance in OOP?
• Which layer of the OSI model is responsible for providing end-to-end communication services and ensures complete data transfer?
• In networking, what is the key difference between IPv4 and IPv6?
• Which of the following protocols operates at the Transport Layer of the TCP/IP model and is connectionless?
• What is the primary role of a hypervisor in a virtual machine (VM) environment?
• Which of the following is a best practice for securing backup data in an enterprise environment?
• In a Windows computing environment, which of the following tools is used to monitor system performance and resource utilization in real-time?
• Which of the following describes the difference between Windows and Unix/Linux file systems?  
• Which of the following CPU scheduling algorithms is optimal for minimizing average waiting time but requires knowledge of future process execution times? ...
• What happens in a deadlock situation in an operating system? 
• What is the main advantage of using a linked list over an array? 
• In which type of memory management does the operating system divide physical memory into fixed-size blocks? 
• Which of the following CPU scheduling algorithms is optimal for minimizing average waiting time but requires knowledge of future process execution times? ...
• What happens in a deadlock situation in an operating system? 
• Which page replacement algorithm replaces the page that will not be used for the longest period of time in the future?  
• In which type of memory management does the operating system divide physical memory into fixed-size blocks?             ...
• Which of the following is true about public-private key encryption in securing communications?
• Which of the following is NOT one of the OWASP Top 10 web security risks?
• Which of the following SQL commands is a DML (Data Manipulation Language) command?
• What is a key difference between monolithic architecture and microservices architecture in software design?
• What is the main purpose of Cross-Site Request Forgery (CSRF)?
• Which of the following is a key characteristic of a DDoS attack?