Q.1
What are the reasons for considering NoSQL databases?
  • Scalability
  • High Availability
  • Flexibility
  • Cost-effectiveness
  • All Of above
Q.2
What are the pieces of a single point stored in InfluxDB?
  • measurement
  • fields
  • time
  • All of above
Q.3
Which of the following are column-oriented databases?
  • MongoDB
  • MySQL
  • Cassandra
  • Neo4j
Q.4
What data structure is used by Elasticsearch to allow for efficient full-text search?
  • Parallel index
  • B-tree index
  • Inverted index
  • Compound index
Q.5
What format is used by MongoDB documents?
  • XML
  • Plaintext
  • JSON
  • Protobuf
Q.6
What are common use cases for Redis?
  • Caching engine
  • Storing persistent data about financial transactions
  • Message broker
  • Caching engine & Message broker
Q.7
What data types are supported by Redis without additional extensions?
  • Sorted sets
  • Strings
  • Both A & B
Q.8
What are the properties of Key-Value Pair databases?
  • They are often designed for simplicity and speed
  • They have limited possibilities when it comes to querying data
  • They allow for fast lookups
  • All Of above
Q.9
Which databases are AP based on CAP theorem?
  • Cassandra
  • MongoDB
  • CouchDB
  • Cassandra & CouchDB
Q.10
What does "scaling out" means?
  • Scaling by adding more servers
  • Scaling by using more powerful server
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