Exam AZ-204 topic 5 question 36 discussion

puuh... knowing all this little things/ remembering all this little things for the exam sounds impossible :(

Correct. BLOCK 0 means that we will wait infinitely (timeout 0 means it will never expire) for new items in a stream. $ ID means that we will receive only new messages, starting from the time we started listening https://redis.io/docs/data-types/streams-tutorial/#listening-for-new-items-with-xread

Given answer is correct.

I would go with BLOCK -1 because its waiting for new events realtime while BLOCK 0 returns empty response if no data is received.

This https://learn.microsoft.com/en-us/training/modules/azure-redis-publish-subscribe-streams/ Should be part of AZ-204 learning path

Answer is correct! To receive seismic data in real-time from Redis Streams, you should use the XREAD command. The XREAD command is a blocking command that allows a client to wait for new data to be added to a stream. This is perfect for real-time applications as it allows the client to receive new data as soon as it is available. The command should be completed as follows: XREAD BLOCK 0 STREAMS seismic_data $ Here, "BLOCK 0" means the command will block indefinitely until new data is available. "STREAMS" is followed by the name of the stream(s) to read from, in this case "seismic_data". The "$" symbol is a special ID which represents the last message in the stream, so the command will only return new messages that arrive after the command is run.

XREAD, BLOCK 0, and $ is the answer that I memorized! I have no clue why!

I failed on my first attempt. I only got 646/1000. I chose C#. MS has recently updated the AZ-204 (Oct 2023), so please be guided that some highly voted answers here might not be correct.

got this question on 29/06/2023

This was on the test 07/14/2023

These AZ exam questions are some of the most ridiculous ones ever. Looks like MS wants you to fail unless you senselessly memorize stupid things. I wonder how dumb the team that sets these questions must be.

wtf is that haha

This question is so ridiculous that I actually remember its answer better than any other.

Agree with the others here - seems quite silly to be expected to remember detail like this. Would be interested to know if anyone recieved this question in their exam

Feels like anything goes and they can ask you about anything that's ever existed