Roku DSA Interview Questions

What Roku asks in the DSA round

Roku pairs medium DSA with embedded and streaming domain questions. Expect arrays, trees and a careful look at memory and performance constraints.

Across the 20 questions on this page, the weight sits on these patterns:

• Breadth-First Search — 3 questions · read the breadth first search (bfs) guide
• Dynamic Programming — 3 questions · read the dynamic programming guide
• Design — 2 questions · read the design data structure guide
• Greedy — 2 questions · read the greedy guide
• Simulation — 2 questions
• Two Pointers — 2 questions · read the two pointers guide
• Backtracking — 1 question · read the backtracking guide
• Binary Search — 1 question · read the modified binary search guide

How to prepare for the Roku interview

1. 1. Start at the top of the list above. The patterns are ordered by how often Roku uses them, so the first two or three buy you the most coverage per hour.
2. 2. Solve by pattern, not at random. Doing eight breadth-first search problems in a row is what makes the ninth recognisable in an interview — jumping between topics does not.
3. 3. Tick problems off as you go so the gaps are visible. The per-pattern counts tell you which Roku topic you have actually covered.
4. 4. Write the approach before the code. Roku interviews are judged on the reasoning as much as the working solution.
5. 5. Pair this with the pattern guides when a topic is new, and the system design sheet if the role is senior enough to have that round.
6. 6. If this is a campus or off-campus drive rather than a lateral move, the placement preparation guide covers the stages around the DSA round — aptitude, core subjects and the HR interview — in the order they actually happen.

Roku interview questions — FAQ

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