Rate the effectiveness of each action as - Not at all effective - Slightly Effective - Moderately Effective - Very Effective - Extremely Effective You and other engineers on a team are tasked with developing a real-time voting service for a new singing show. The final show is scheduled to take place 5 weeks from now. At the end of the show, there will be a 5-minute voting block where all votes are tabulated. Your manager needs you to take the lead here. This work has not started yet. Rank the following next steps in order of effectiveness. - Clarify requirements with stakeholders - Schedule a meeting with the design team - Create a proof of concept system to test - Write fundamental library code - Create a database schema A meeting with the product manager clarified that the system needs to operate under the following conditions: - The voting result is updated every second within the 5-minute voting period. - Customers are allowed to review and update their votes until the voting is closed. - The system needs to handle millions of customers voting at the same time during the 5-minute voting block. - The system needs to remain available during the voting period. Rank the following vote storage strategies in order of effectiveness. - Key-value database - used for storing key value pairs in a distributed manner (e.g., Amazon DynamoDB, Redis, or Cassandra) - Document database - used for storing JSON documents (e.g., MongoDB, Azure CosmosDB, CouchDB) - Ledger database - store using an append only record journal (e.g., Amazon QLDB) - Graph database - used for storing data with complex relationships (e.g., Amazon Neptune, Neo4J, or Tiger DB) - Distributed data processing system - Apache Hadoop/Spark to process tracking data.
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