VIP Exclusive
Back-End Development VIP Certification Exam
Back-End Development — No single standardized credentialing body issues a universal 'Back-End Development' certification; this is an original comprehensive practice set modeled on the content domains tested by widely-recognized industry credentials such as AWS Certified Developer, Meta Back-End Developer Professional Certificate, and Google Professional Cloud Developer, covering REST APIs, databases, authentication, security, caching, and distributed systems at an intermediate-to-advanced level.
31
Questions
90m
Time Limit
75.00%
To Pass
Question 1 of 31👑 VIP
You are designing a REST API endpoint for a financial application. A client sends a POST request to /api/v1/transfers to initiate a funds transfer. The network drops the connection before the client receives a response, and the client retries the same request. Which design strategy best prevents a duplicate transfer from being processed?
Questions 2–31 and full explanations are VIP-exclusive.