What is the difference between primary, partition and clustering key in Cassandra ?
Answer : In Cassandra, a table contain a number of rows.
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What is the difference between Cassandra and Hadoop ?
Answer : All nodes are same in Peer-to-Peer
Distributed architecture. Master/Slave. Name Node act as Master and data node act as worker node.
What is the virtual node in Cassandra ?
Answer : Prior to Cassandra 1.2, every node was allocate to a particular token range.
What is the use of Cassandra database ?
Answer : Apache Cassandra is a high-performance provides database to manage large number of data among many commodity servers and then it is highly scalable
What is the replica placement strategy in Cassandra ?
Answer : Once you’ve absorbed that the strategy should fit the kind of environment you are placing your cluster in…
What is the relationship between Apache Hadoop, HBase, Hive and Cassandra ?
Answer : It is a Big Data framework which uses Hadoop Distributed File System to Store the data and MapReduce framework to process that data
What is the most widely used API to write data to Cassandra ?
Answer : Java makes the write procedure locked into the Java program.
What is the internal architecture of the Cassandra database ?
Answer : Cassandra is build to manage big data workloads among multiple nodes with no single point of failure
What is the Cassandra coefficient ?
Answer : The four components of the Cassandra Coefficient are…
What is the best method for storing lists of large objects in Cassandra ?
Answer : All header information variables become static attached to your primary key…
What is secondary index in Cassandra ?
Answer : A primary index is global, although a secondary index is local.
What is cluster, node and key space in cassandra ?
Answer : Cluster is a collection of multiple data centers.
What is Cassandra data modelling ?
Answer : The Group of independent servers (usually in close proximity to one another) interconnected via network to work as one centralized data processing resource…
What is a seed node in Apache Cassandra ?
Answer : Seeds are used to discover the cluster in the start up period…
What is the history of the Cassandra database ?
Answer : Amazon’s dynamo and Prashant malik are written by Avinash Lakshman at first succeed Cassandra at Facebook to capable the Facebook inbox search purpose
What is Cassandra database software ?
Answer : Apache Cassandra is a simple and open-source provides NoSQL DBMS build to handle huge volume of data against more fabric servers
Print pyramid triangle in C++
Answer : To print pyramid triangle in C++, we have use two for loop…
C++ Inheritance
Answer : Inheritance is one of the key features of Object-oriented programming…
Finding all substrings of a given number that are divisible by 11
Answer : Query(l, r) : find if the sub-string between the indices l and r….
