Describe the main goal of isolating changes in separate branches before merging into main: - To eliminate the need for testing before release - To ensure independent versions of the application for production and development without merge - To maintain the stability of the main branch - To avoid conflicts during collaborative development
What is the difference between a subquery in WHERE id IN (SELECT ...) and a subquery with WHERE EXISTS (SELECT ...)? IN compares values with a result set, EXISTS checks for the existence of at least one row IN is executed for each row of the outer query, EXISTS once No difference IN works only with numbers, EXISTS with any types
If you run git add only for some of the changed files, what exactly will be included in the commit when you run git commit -m? Files specified in git add, entirely with their current state, including unstaged changes All changes in all modified files, even those not added to the index Only the most recently modified files from the working directory Only the changes added to the index
What will the program output when executed? package main import "fmt" func main() { s := make([]int, 0, 3) m := map[string]int{"a": 1, "b": 2} for i := 0; i < 5; i++ { s = append(s, i) } fmt.Println(len(s), cap(s)) if v, ok := m["c"]; ok { fmt.Println(v) } else { fmt.Println("no key") } }
What are sockets and what types are there?.
Tell me how you develop and learn, what are you studying now?
What types of indexes are there in a database and what are they used for?
What is OLAP and OLTP?
What is idempotency in service requests?
What application layer protocols operate over TCP and UDP?
What does 'B' in B-tree mean?
What does the garbage collector (GC) in Go do, and when does it usually turn on automatically? It frees memory of unreachable objects and runs automatically when the heap size exceeds the runtime threshold. It arranges variable placement in memory for cache optimization and triggers strictly on a timer every 10 ms. It tracks the number of goroutines and only activates after the main function finishes. It synchronizes mutex operations and activates when free RAM drops below 5%.
How do you argue your point of view if a colleague disagrees with you?
Are you currently actively or passively looking for a job? Why are you looking for a new job?
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What is a data race?
Tell me about your current job — what size of tasks do you take on?
What do you base your decision on when taking a risky decision in favor of speed or quality?
Tell me about the processes in the team — how did you work according to Scrum?
Can you give the latest example of a task you enjoyed?
