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Unit III

Quiz by Dr.Megiba Jasmine

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13 questions
Show answers
  • Q1

    Which of the following API is used for Column Families and Tables in Cassandra?

     

     

     

     

    Column Family-CQL API ;Table-Thrift API

    Column Family-Thrift API ;Table-Thrift API

    Column Family-Thrift API ;Table-CQL API

    Column Family-CQL API ;Table-CQL API

    30s
  • Q2

    In a collection that contains 100 post documents, what does the following command do?

    db.posts.find().skip(5).limit(5)

    A - Skip and limit nullify each other. Hence returning the first five documents.

    D - Limits the first five documents and then return them in reverse order

    B - Skips the first five documents and returns the sixth document five times

    C - Skips the first five documents and returns the next five

    30s
  • Q3

    Which of the following commands will return all the posts with number of likes greater than 100 and less than 200, both inclusive?

    D - db.posts.find({ likes : { $gte : 100 , $lte : 200 } } );

    A - db.posts.find({ likes : { $gt : 100, $lt : 200 } } );

    B - db.posts.find({ likes : { $gte : 100, $lt : 200 } } );

    C - db.posts.find({ likes : { $gt : 100 , $lte : 200 } } );

    30s
  • Q4

    Which of the following commands removes a single document that matches the condition that Author is Joe?

    C - db.posts.remove( { Author : "Joe" }, {justOne: true} )

    D - Both b and c

    A - db.posts.removeOne( { Author : "Joe" }, 1 )

    B - db.posts.remove( { Author : "Joe" }, 1 )

    30s
  • Q5

    What is CQL stands for?

    Component Query Language

    Cluster Query Language

    Cassandra Query Language

    Commit Query Language

    30s
  • Q6

    Apache Cassandra is a massively scalable open source _______ database.

    C)NewSQL

    A)SQL

    D)All of the above

    B)NoSQL

    30s
  • Q7

    Cassandra uses a protocol called _______ to discover location and state information.

    D)All of the above

    B)goss

    C)intergos

    A)gossip

    30s
  • Q8

    Cassandra has peer-to-peer distributed system across its nodes.

    C)Can not say

    B)False

    A)True

    30s
  • Q9

    Which of the following is not a part of Cassandra architecture?

    C)Column

    D)Bloom Filter

    A)MemTable

    B)Commit log

    30s
  • Q10

    Which of the following decides the distribution of data in a cluster?

    B)Compaction

    A)Partitioner

    D)Gossip Protocol

    C)Commit log

    30s
  • Q11

    Which of them is a memory-resident data structure?

    B)Mem-table

    D)Bloom filter

    A)SSTable

    C)Data center

    30s
  • Q12

    Which of the following is a unit of replication in Cassandra?

    D)None of the above

    C)Both A and B

    B)Column

    A)Row

    30s
  • Q13

    In which of the following data type order of the element entered is maintained?

    B)Map

    C)List

    A)Set

    D)None of the above

    30s

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