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Nosql
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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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