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IT class - April 11th [Community Learning Week •Phase 13] Activity

Latest reply: Apr 12, 2022 15:02:58 1364 100 42 0 0

Hello, everyone!

Join the Community Learning week IT class! 

learning week

IT class learning time of this phase: April 11th - April 16th.

Answer time of this class: April 11th, 8 AM - April 12th, 4 PM (UTC+0).

Class topic

1. Introduction to HDFS

Hadoop Distributed File System (HDFS) is a distributed file system designed to run on commodity hardware. HDFS has a high fault tolerance capability and is deployed on cost-effective hardware...(More)

2. Introduction to ZooKeeper

The ZooKeeper distributed service framework is used to solve some data management problems that are frequently encountered in distributed applications and provide distributed and highly available coordination service capabilities...(More)

3. Introduction to Hive

The Apache Hive data warehouse software helps read, write, and manage large data sets that reside in distributed storage by using SQL. Structures can be projected onto stored data. The command-line tool and JDBC driver are provided to connect users to Hive...(More)

4. Introduction to YARN

Apache Hadoop Yet Another Resource Negotiator (YARN) is a resource management system. It provides unified resource management and scheduling for upper-layer applications, remarkably improving cluster resource utilization, unified resource management, and data sharing...(More)

5.  Introduction to Spark

As a one-stop solution, Apache Spark integrates batch processing, real-time streaming, interactive query, graph programming, and machine learning...(More)

Click to learn:  >>>Previous class – Storages


    *1. What are the disadvantages of the HDFS Single-NameNode Architecture? (Multiple choices)

  • A. Namespace limitation
  • B. Performance bottleneck
  • C. Isolation
  • D. Cluster availability

    *2. HDFS provides HDFS data accessing through Java APIs, HTTP, or SHELL modes. (Single choice)

  • A. True
  • B. False

    *3. Which of the following statements about Spark SQL and Hive is incorrect? (Single choice)

  • A. The execution engine of Spark SQL is Spark Core.
  • B. The execution speed of Spark SQL is 10 to 100 times faster than Hive.
  • C. Spark SQL does not support buckets, but Hive supports.
  • D. The default execution engine of Hive is Zookeeper.

    *4. There are two ResourceManager in the cluster, which is used for unified resource management, scheduling, and allocation. (Single choice)

  • A. True
  • B. False

    *5. Which components does HBase consist of? (Multiple choices)

  • A. Library functions
  • B. BloomFilter
  • C. HMaster
  • D. RegionServer

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