14 - Quiz¶

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Which statement best defines a race condition?

• A. Two goroutines running at the same time
• B. A program that runs slowly because of synchronization
• C. A goroutine that finishes before another goroutine
• D. A program whose result depends on the timing of concurrent operations

Which part of a program is called a critical section?

• A. Code that performs input/output operations
• B. Code that creates new goroutines
• C. Code that accesses shared variables and must not run concurrently
• D. Code that runs on the main goroutine

What is the main purpose of a sync.Mutex?

• A. To ensure multiple goroutines run in parallel
• B. To increase CPU utilization
• C. To schedule goroutines across CPUs
• D. To guarantee that only one goroutine executes a critical section at a time

Why is the following operation unsafe in concurrent programs?

balance = balance + amount

• A. It performs multiple steps that can interleave with other goroutines
• B. Arithmetic operations are not allowed in goroutines
• C. Go prevents updating shared variables
• D. The compiler removes the statement