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Practice Data Structure Questions and Answers

Which of the following is NOT among the OWASP Top 10 Web Security Risks?
Which of the following phases in the Software Development Life Cycle (SDLC) ensures that the final product meets the agreed-upon requirements and specifica...
Which design pattern is best suited for ensuring that a class has only one instance and provides a global point of access to it?
Which of the following is a key principle of the SOLID design principles that focuses on ensuring a class has only one reason to change?
Which of the following types of testing is typically conducted by end-users to verify that the developed software meets their requirements?
In Java, what will be the output of the following code snippet? public class Test { public static void main(String[] args) { int...
Which SQL command is used to remove only specific rows from a table while preserving the structure and other rows?
What is the time complexity of searching an element in a balanced binary search tree (BST) with nnn nodes?
What will be the output of the following Java snippet? class A { public void display() { System.out.println("Class A"); }}...
In a data warehouse, which of the following best describes the concept of "data granularity"?
Which of the following is a key characteristic of an effective Management Information System (MIS)?
In system design, what is the primary purpose of a feasibility study?
In the context of system analysis, which of the following best defines the "use case" diagram?
Which of the following accurately describes the role of a "foreign key" in a relational database system?
What is the primary purpose of an Entity-Relationship (ER) Diagram in database design?
Which of the following best explains segmentation in memory management?
In networking, what is the primary purpose of subnetting?
Which of the following data structures is best suited for implementing a LIFO (Last In, First Out) mechanism?
What is the best-case time complexity of the binary search algorithm ?
Which of the following traversal methods is used to visit nodes in the order "left child, root, right child" in a binary tree?
Which sorting algorithm is considered the most efficient for large datasets with no additional memory constraints?
Which of the following best describes Abstraction in Object-Oriented Programming (OOP)?
Which of the following is an example of Polymorphism in Object-Oriented Programming?
Which of the following best illustrates Encapsulation in Object-Oriented Programming?
What type of relationship is represented by Aggregation in Object-Oriented Programming?
Which of the following is a key objective of the Requirement Analysis phase in the Software Development Lifecycle (SDLC)?
Which testing type evaluates internal code logic and control flow?
Which design pattern is best suited for managing the creation of objects without specifying their concrete classes?
Which SOLID principle ensures that a class has only one reason to change?
Which of the following statements is true about ACID properties in database transactions?
Which type of database key is a candidate key that has not been chosen as the primary key?
Which of the following is the main objective of the 3rd Normal Form (3NF) in database normalization?
Which type of database join returns only the matching rows from two tables based on a condition?
Which of the following is the primary goal of a Cross-Site Scripting (XSS) attack?
Which of the following attacks can occur when a user is tricked into performing unintended actions on a trusted website without their knowledge?
Which cryptographic concept ensures that data integrity is preserved and cannot be altered during transmission?
Which of the following OWASP Top 10 risks involves insecure coding practices that allow attackers to gain access to sensitive data, such as usernames and p...
Which of the following statements is true about deadlocks in an operating system?
Which page replacement algorithm minimizes the number of page faults theoretically but is difficult to implement in practice?
Which CPU scheduling algorithm always selects the process with the smallest burst time first, potentially leading to starvation?

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