Practice Data Structure Questions and Answers

• Which of the following is the most critical success factor for the implementation of a Decision Support System (DSS) within an organization?
• Natural Language Processing (NLP) In the context of sentiment analysis, which of the following NLP techniques provides the most accurate classification o...
• Computer Architecture Which architectural feature is crucial for improving the performance of modern multi-core processors?
• Which attack can be mitigated using DNSSEC (Domain Name System Security Extensions)?
• Which of the following is the most effective method to ensure data confidentiality when transmitting sensitive information over a public network?
• What is the primary role of a Certificate Authority (CA) in a Public Key Infrastructure (PKI)?
• Which protocol provides secure authentication by encrypting credentials before transmission and uses a challenge-response mechanism?
• Which encryption technique is used in Transport Layer Security (TLS) to securely establish a session key?
• Which of the following is a primary advantage of using a star schema in a data warehouse design?
• Which of the following best describes the key benefit of blockchain technology in supply chain management?
• In a data warehousing environment, what is the primary purpose of an OLAP (Online Analytical Processing) cube?
• Which of the following is NOT a characteristic of a minimum spanning tree (MST) in a connected, undirected graph?
• Which of the following is the primary reason why polymorphism is useful in Object-Oriented Programming (OOP)?
• Which SQL query will retrieve the second highest salary from an Employee table?
• Given the IP address 192.168.10.5 and the subnet mask 255.255.255.240 , what is the range of valid host addresses in this subnet?
• What is the purpose of the keys() method in a dictionary?
• Which data structure is ideal for priority-based scheduling?
• Priority Queue allows access to elements based on priority rather than order.
• Which tree traversal gives nodes in non-decreasing order for a BST?
• Which traversal method visits the root node first in trees?
• Which of the following allows dynamic memory allocation?
• RISC stands for:
• Which memory is the fastest?
• Which data structure is most suitable for implementing a priority queue with logarithmic time complexity for insertion and deletion?
• Which traversal method is best for copying a binary tree?
• The amortized cost of appending an element at the end of a dynamic array is:
• Which data structure uses FIFO (First In, First Out)?
• The time complexity of binary search is:
• Which traversal of binary tree gives nodes in sorted order?
• Which algorithm is used for shortest path in graphs?
• Which sorting algorithm has O(n log n) average case?
• Which data structure is used in recursion?
• Hashing is used for:
• Which data structure is used in BFS traversal of graphs?
• Best case complexity of insertion sort is:
• Which heap property is correct?
• Which algorithm is used for minimum spanning tree?
• Which search algorithm is complete but not always optimal?
• Which data structure is used for undo operations in text editors?
• Time complexity of heap sort is: