user: Which countries besides the five recognized Nuclear Weapons States have acquired, or are presumed to have acquired, nuclear weapons?

assistant: India, Pakistan, North Korea, and Israel.

user: How can I ensure exactly-once delivery when reading data from Kafka with Spark?

assistant: To ensure exactly once delivery, you can use the idempotent producer setting in Kafka and the checkpointing mechanism in Spark Structured Streaming. This is possible to achieve if your sink is a delta table, but not if the sink is another Kafka topic.

user: What programming languages does freeCodeCamp teach to students?

assistant: freeCodeCamp is a non-profit organization that has tutorials that introduce students to HTML, CSS and JavaScript.