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Akamai Placement Papers 2025

This page collects Akamai placement papers from 2025 with practice questions, worked solutions, and the exam pattern students reported that cycle. Use it when you want drive history: what the first round looked like, which topics repeated, and how to approach solutions. Work the sets below under a timer, then compare with newer material so your prep matches both established Akamai patterns and recent shifts.

Akamai Aptitude Mock Quiz

Timed placement-style MCQs with score and explanations after you submit. Use it to check speed and accuracy before the real test.

Questions15
Time10 min
Section What shows up Prep focus
Online assessment Coding and/or MCQ filter Weekly timed mocks
Technical rounds DSA, CS fundamentals, projects Live problem solving
HR / hiring manager Motivation and communication Specific, evidence-based answers

First round: Akamai Online Assessment
Skills emphasized: DSA, networking, distributed systems
Languages: C, C++, Java, Python

These are practice-style questions aligned to patterns students report for Akamai drives around 2025. They are not leaked live papers. Work them timed, then read the solutions only after you have an answer.

Q1: Sum of naturals

Problem: What is the sum of the first 50 natural numbers?

Solution: Sum of first n naturals = n(n+1)/2. For n = 50: 50 × 51 / 2 = 1275.

Answer: 1275

Q2: Average speed

Problem: A person covers a distance at 60 km/h and returns at 40 km/h. What is the average speed for the whole trip?

Solution: For equal distances, average speed = 2ab/(a+b). = 2×60×40 / (60+40) = 4800/100 = 48 km/h.

Do not take the arithmetic mean (50); that would be wrong here.

Answer: 48 km/h

Q3: Marked price discount

Problem: A shopkeeper marks goods 20% above cost and then gives a 10% discount. What is the profit percentage?

Solution: Let CP = ₹100. Marked price = ₹120. Discount = 10% of 120 = ₹12. SP = 120 − 12 = ₹108. Profit % = 8%.

Answer: 8%

Q4: Three workers

Problem: A finishes work in 12 days, B in 15 days, and C in 20 days. Working together, how many days do they need?

Solution: Take total work = LCM(12,15,20) = 60 units. A = 5/day, B = 4/day, C = 3/day. Combined = 12 units/day. Time = 60/12 = 5 days.

Answer: 5 days

Q5: Age ratio

Problem: The ratio of ages of A and B is 3:5. After 8 years the ratio becomes 5:7. Find A’s present age.

Solution: Let ages be 3x and 5x. (3x+8)/(5x+8) = 5/7 7(3x+8) = 5(5x+8) 21x + 56 = 25x + 40 4x = 16 → x = 4 A’s age = 12 years.

Answer: 12 years

Q6: Pipe fill

Problem: Pipe A fills a tank in 6 hours and pipe B in 8 hours. How long do they take together to fill it?

Solution: Combined rate = 1/6 + 1/8 = 4/24 + 3/24 = 7/24. Time = 24/7 hours ≈ 3 hours 26 minutes.

Answer: 24/7 hours

Q7: Simple interest

Problem: Find the simple interest on ₹8000 at 10% per annum for 2 years.

Solution: SI = (P × R × T) / 100 = (8000 × 10 × 2) / 100 = ₹1600.

Answer: ₹1600

Q8: Percentage recover

Problem: If 30% of a number is 150, what is the number?

Solution: 0.3x = 150 → x = 150 / 0.3 = 500.

Answer: 500

Coding Q1: Stack with min

Problem: Design a stack that supports push, pop, top, and getMin in average O(1) time.

Approach: Keep a parallel min-stack (or store pairs). When pushing, also push the new minimum. When popping, pop both stacks.

Complexity: O(1) per operation amortized

Akamai tip: Restate the problem, sketch a brute-force idea, then tighten it. Call out edge cases (empty input, single element, overflow) before you write code.

Coding Q2: Maximum subarray sum (Kadane)

Problem: Given an integer array, find the contiguous subarray with the largest sum and return that sum. Example: [-2,1,-3,4,-1,2,1,-5,4] → 6 (from [4,-1,2,1]).

Approach: Keep a running sum. If the running sum drops below 0, reset it to 0 before taking the next element (or track the best ending-here value). Track the global maximum as you scan once from left to right.

Complexity: O(n) time, O(1) extra space

Akamai tip: Restate the problem, sketch a brute-force idea, then tighten it. Call out edge cases (empty input, single element, overflow) before you write code.

Coding Q3: Reverse a string in place

Problem: Given a mutable character array representing a string, reverse it in place without allocating another array of the same size.

Approach: Use two pointers at the start and end. Swap characters, then move inward until the pointers meet. Watch empty and single-character inputs.

Complexity: O(n) time, O(1) extra space

Akamai tip: Restate the problem, sketch a brute-force idea, then tighten it. Call out edge cases (empty input, single element, overflow) before you write code.

Coding Q4: Check prime

Problem: Write a function that returns true if n is prime and false otherwise. Handle n < 2 correctly.

Approach: Return false for n < 2. Trial-divide from 2 to floor(sqrt(n)). If any divisor divides n evenly, it is composite; otherwise prime.

Complexity: O(√n) time

Akamai tip: Restate the problem, sketch a brute-force idea, then tighten it. Call out edge cases (empty input, single element, overflow) before you write code.

Coding Q5: Valid parentheses

Problem: Given a string containing only ‘()[]’, decide whether the brackets are balanced and correctly nested.

Approach: Scan left to right with a stack. Push opening brackets. On a closing bracket, the stack top must be the matching opener. At the end the stack must be empty.

Complexity: O(n) time, O(n) space

Akamai tip: Restate the problem, sketch a brute-force idea, then tighten it. Call out edge cases (empty input, single element, overflow) before you write code.

Coding Q6: Two Sum

Problem: Given an array of integers and a target, return indices of two numbers that add up to the target. Assume exactly one solution and you may not use the same element twice.

Approach: Walk the array once. For each value x, check whether target − x was seen earlier in a hash map of value → index. If yes, return both indices; else store x.

Complexity: O(n) time, O(n) space

Akamai tip: Restate the problem, sketch a brute-force idea, then tighten it. Call out edge cases (empty input, single element, overflow) before you write code.

Coding Q7: Longest substring without repeating characters

Problem: Given a string s, find the length of the longest substring without repeating characters. Example: ‘abcabcbb’ → 3 (‘abc’).

Approach: Sliding window with a map (or last-seen index) of characters. Expand the right pointer; when a duplicate appears inside the window, move the left pointer past the previous occurrence.

Complexity: O(n) time

Akamai tip: Restate the problem, sketch a brute-force idea, then tighten it. Call out edge cases (empty input, single element, overflow) before you write code.

Coding Q8: Merge overlapping intervals

Problem: Given a list of intervals [start, end], merge all overlapping intervals and return the non-overlapping set that covers the same ranges.

Approach: Sort by start time. Walk once, merging into the last interval in the result when the next start is ≤ current end; otherwise append a new interval.

Complexity: O(n log n) time from the sort

Akamai tip: Restate the problem, sketch a brute-force idea, then tighten it. Call out edge cases (empty input, single element, overflow) before you write code.

How the Akamai Online Assessment usually feels

Section titled “How the Akamai Online Assessment usually feels”

Students usually say the first round is time-tight - easy marks vanish if you sit too long on one hard question. For Akamai, skim the paper in a couple of minutes, mark what you can finish cleanly, and protect accuracy. Languages people commonly use: C, C++, Java, Python.

Area Why it matters at Akamai
DSA What usually helps you clear the first round
Core CS (OOPs / DBMS / OS) Technical interview depth
CDN, Cloud Security awareness Helps in managerial / HR conversations
Communication Explain your approach clearly; keep a few real examples ready for HR
  1. Days 1-3: Learn the 2025 pattern and take two sectional mocks
  2. Days 4-7: Closed practice on weak topics from your error log
  3. Days 8-10: Full mocks every other day; review the same day
  4. Days 11-14: Practice explaining projects out loud, light revision, sleep and IDs ready

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