Govt. Exams
In microservices architecture, maintaining data consistency across independently managed databases (polyglot persistence) is a significant challenge. ACID transactions cannot span multiple databases, requiring eventual consistency patterns.
Strong passwords require length (12+ characters), character variety, and complexity. Reusing passwords and storing them insecurely significantly increases security risks.
The two main types of polymorphism are compile-time (static overloading) and runtime (dynamic overriding). Sequential polymorphism is not a recognized OOP concept.
DFS complexity = O(V + E) = O(10 + 15) = O(25). This includes visiting each vertex once and exploring each edge once.
Maximum height occurs in a skewed (linear) tree where height = n - 1 = 7 - 1 = 6. Minimum height would be 2 for a balanced tree.
Agile embraces changing requirements even late in development. Fixed scope with no flexibility contradicts Agile's core principle of adaptability.
In a circular queue, number of elements = (rear - front + 1) = (8 - 3 + 1) = 6 elements.
git reset --hard HEAD~1 is the standard command to undo the last commit and discard changes. HEAD~1 refers to the previous commit.
Heap Sort is an in-place sorting algorithm requiring only O(1) extra space, making it optimal for memory-constrained environments despite having O(n log n) time complexity.
Microservices architecture allows individual components to scale independently, improves fault isolation, enables easier updates, and promotes team autonomy in development.
