Design a Multi-Dimensional Job Rate Limiter
Last updated: July 30, 2026
Quick Overview
Design a multi-dimensional job rate limiter that can control the rate of job execution based on multiple criteria.
Zscaler
July 30, 20261
0
15 solved
Design a multi-dimensional job rate limiter that can control the rate of job execution based on multiple criteria.
This question is typically asked in an onsite interview for a software engineering role at Zscaler to evaluate the candidate's ability to design scalable and efficient systems. The interviewer is looking for a clear understanding of rate limiting concepts, as well as the ability to apply them in a multi-dimensional context, which is crucial for managing resources in a cloud environment.
What the Interviewer Expects
- Explain the concept of rate limiting and its importance in system design.
- Discuss the multi-dimensional aspects of the rate limiter, including various criteria for limiting jobs.
- Provide a high-level design of the system, including components and interactions.
- Identify potential trade-offs and scaling considerations.
- Demonstrate an understanding of implementation details and algorithms involved.
Key Topics to Cover
How to Approach This
- Apply SOLID principles. Single Responsibility makes code testable, Open/Closed makes it extensible.
- Choose data structures based on access patterns, not familiarity.
- Prefer immutable data and message passing over shared mutable state for concurrency.
- Design APIs with RESTful conventions, versioning, meaningful errors, and pagination from day one.
Possible Follow-up Questions
- How would you handle burst traffic in your rate limiter?
- What data structures would you use to implement the rate limiter?
- Can you explain how you would test your rate limiter for performance?
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Practice System Design ProblemsSample Answer
Requirements
To design a multi-dimensional job rate limiter, we first need to understand the requirements. The rate limiter should control the execution of jobs based on multiple dimensions such as user type, job ...
High-Level Design
The high-level design includes several components:
- Job Queue: A queue to hold incoming jobs.
- Rate Limiter: A service that monitors and controls the rate of job execution based on defin...
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