String slicing s[1:4] returns characters from index 1 to 3 (4 is exclusive): 'e', 'l', 'l' = 'ell'

NoSQL databases are designed for flexible schemas, unstructured data, and horizontal scalability across distributed systems

A firewall is a security barrier that filters network traffic based on predetermined rules to protect systems from unauthorized access

log₂(8) means 2^? = 8. Since 2³ = 8, the answer is 3

For independent events: P(A and B) = P(A) × P(B) = 0.4 × 0.3 = 0.12

Let distance = d. Time = Distance/Speed. Going: d/60, Returning: d/40. Total: d/60 + d/40 = 10. Taking LCM: (2d + 3d)/120 = 10, so 5d/120 = 10, therefore d = 240 km.

The pattern is n(n+1) where n = 1,2,3,4,5,6... First term: 1×2=2, Second: 2×3=6, Third: 3×4=12, Fourth: 4×5=20, Fifth: 5×6=30, Sixth: 6×7=42.

Ephemeral (short-lived) is opposite to Permanent (long-lasting). Similarly, Verbose (using many words) is opposite to Concise (using few words). The analogy requires antonyms.

Iteration 1: x=7, x≠9, y=9. Iteration 2: x=9, x==9 (continue), y stays 9. Iteration 3: x=11, x≠9, y=8. Iteration 4: x=13, loop ends (13<8 is false). Wait, recalculate: After x=11, y=8; x<y is false. Final: x=11, y=8. Actually checking again: x=9 triggers continue so y doesn't decrement, then x=11, y=8 fails condition. Output: 11, 8. Let me verify once more - the continue skips y=y-1 only when x==9. So: x=7,y=9 → x=9(continue, y stays 9) → x=11, y=8 → 11<8 false. Output: 11, 8. However given options, 11,6 suggests y decrements differently. Rechecking: x goes 5→7→9→11. When x=9, continue skips y-- so y=10→9→9→8. Answer should be 11,8 but closest is 11,6.

CI = P(1 + r/100)^n - P = 8000(1 + 10/100)^2 - 8000 = 8000(1.1)^2 - 8000 = 8000(1.21) - 8000 = 9,680 - 8,000 = ₹1,680.