Explain Go concurrency and database choices

Q: Explain Go concurrency and database choices

This question evaluates a candidate's understanding of Go concurrency primitives and scheduler behavior, cross-language concurrency comparisons, database model trade-offs (relational, document, columnar, key–value), and end-to-end storage design for high-concurrency systems.

Q: How do I approach System Design interview questions?

System Design questions require understanding of core concepts and practice. PracHub provides solutions with explanations to help you master system design interviews.

Question

Go Concurrency, Cross-Language Comparison, Database Trade-offs, and Storage Design

Part A — Concurrency in Go

Explain synchronous vs asynchronous execution in Go and how it differs from blocking vs non-blocking I/O.
Compare OS threads and goroutines, covering:
- Scheduler model
- Stack growth
- Memory overhead
- Context-switch cost
- Communication patterns (channels vs shared memory)
Contrast Go's concurrency model with at least one other language (e.g., Java, Python, or C++). Discuss how threads, async/await, and the GIL (if applicable) affect throughput and latency.

Part B — Database Systems

Compare relational, document, columnar, and key–value stores in terms of:

Data modeling flexibility
Transactions (ACID vs BASE)
Indexing and joins
Scalability via sharding/replication
Typical use cases

Part C — System Design: Flight Booking Platform

Given a flight-booking platform that supports complex search and high write concurrency, propose an end-to-end storage design. Include:

Primary database choice and rationale
Schema or document design
Caching layer
Read and write paths
Justify trade-offs

Explain Go concurrency and database choices

Go Concurrency, Cross-Language Comparison, Database Trade-offs, and Storage Design

Part A — Concurrency in Go

Part B — Database Systems

Part C — System Design: Flight Booking Platform

Solution

Comments (0)

Explain Go concurrency and database choices

Overview

Go Concurrency, Cross-Language Comparison, Database Trade-offs, and Storage Design

Part A — Concurrency in Go

Part B — Database Systems

Part C — System Design: Flight Booking Platform

Solution

Comments (0)