How to kill a process in Linux? What to do if 'kill pid' doesn't help?
Middle+
187
Golang
8397
379
Write an SQL query to list authors who have more than 10 books (tables: authors, books, many-to-many relationship).
Middle+
187
What are EXPLAIN and EXPLAIN ANALYZE in PostgreSQL, and what is the difference?
Middle+
184
What is a race condition in Go? Provide an example.
Middle+
184
How is a slice in Go structured internally? How does the append function work?
Middle+
184
There are 3 entities - user, chat, message • The user has a name and registration date • The chat has a name and creation date • The message has text, an author, and a creation date • A user can be part of multiple chats simultaneously • A message must belong to a chat, and a message cannot belong to more than 1 chat at the same time • The domain should be described in the form of tables
Senior
183
Tell about an interesting/complex technical problem you solved.
Middle+
179
Which databases have you worked with the most?
Senior
179
We have a database with user passwords, passwords are hashed (hashPassword function), and a set of characters that can be used in passwords (variable alphabet). Our task is to implement the RecoverPassword function so that it recovers the password by the known hash and TestRecoverPassword completes successfully. Basic requirements: Solve as you wish package main import ( "crypto/md5" "fmt" ) var alphabet = []rune{'a', 'b', 'c', 'd', '1', '2', '3'} func RecoverPassword(h []byte) string { return "" } func hashPassword(in string) []byte { h := md5.Sum([]byte(in)) return h[:] } func main() {
Senior
175
package main import ( "crypto/md5" "fmt" ) var alphabet = []rune{'a', 'b', 'c', 'd', '1', '2', '3'} func RecoverPassword(h []byte) string { return "" } func hashPassword(in string) []byte { h := md5.Sum([]byte(in)) return h[:] } func main() { tests := []string{"a", "12", "abc333d"} ok := true for _, exp := range tests { h := hashPassword(exp) act := RecoverPassword(h) if act != exp { fmt.Printf("Error: expected %q, got %q\n", exp, act) ok = false } } if ok { fmt.Println("All tests passed successfully") } }
Senior
172
What HTTP methods exist? Which of them are idempotent?
Middle+
171
Code review: cache in Go with mutex. Find issues and suggest improvements. Condition: read/write load 80/20.
Middle+
170
Describe the structure of an HTTP request and response. How are response codes classified?
Middle+
166
package main import ( "crypto/md5" "fmt" ) var alphabet = []rune{'a', 'b', 'c', 'd', '1', '2', '3'} func RecoverPassword(h []byte) string { return "" } func hashPassword(in string) []byte { h := md5.Sum([]byte(in)) return h[:] } func main() { tests := []string{"a", "12", "abc333d"} ok := true for _, exp := range tests { h := hashPassword(exp) act := RecoverPassword(h) if act != exp { fmt.Printf("Error: expected %q, got %q\n", exp, act) ok = false } } if ok { fmt.Println("All tests passed successfully") } } To run the code correctly: entry point -- main function in main package Task: Implement the RecoverPassword function, which restores the original password from an MD5 hash, consisting of characters from a given alphabet.
Senior
165
Why are you considering new offers? Active or passive search?
Senior
163
How to implement a graceful shutdown of a Go service in Kubernetes when deploying a new version?
Middle+
163
What tables and fields are needed in a PostgreSQL database for this messenger?
Senior
160
What are your current expectations from a new job?
Senior
159
What was the most difficult and most interesting part of migrating from monolith to microservices?
Senior
158
Tests — did the developers write some?
Senior
157