Answer : (c) c) True only for Apache and Cloudera Hadoop. With the advent of Apache YARN, the Hadoop platform can now support a true data lake architecture. Whether core requests are honored in scheduling decisions depends on which scheduler is in use and how it is configured. 2.What happens if number of reducers are set to 0? Hadoop is open source. True; False; 14. Compatibility - The applications developed for Hadoop v1 run on YARN without any disruption or availability issues. ( B) a) ALWAYS True. Monitor if the primary namenode is up and running. TRUE b. . Municipalities function in big cities. In part I of this series, we reviewed preliminaries related to SSO, including LDAP authentication for Ambari, and we set up an application in Okta that would correspond to our KnoxSSO service provider for the SAML authentication flow.We are now ready to configure Knox within Ambari. ( B ) a) TRUE b) FALSE c) True if data set is . => OK When I stop active namenode the other with s. ( B ) a) TRUE b) FALSE c) True if data set is small Following Security > Local intranet > Custom level, make sure that the Automatic logon only in Intranet Zone setting is selected. Hadoop is open source. Hive can be used for real time queries. Answer: True. Uses JournalNodes to decide the active NameNode; Allows non-Hadoop programs to access data in HDFS; Allows multiple NameNodes with their own namespaces to share a pool of DataNodes; Implements a resource manager external to all Hadoop frameworks; 15. Step 1: Create a Java Project in Eclipse. The vision with Ranger is to provide comprehensive security across the Apache Hadoop ecosystem. Hive can be used for real time queries. Answer (1 of 5): For an introduction on Big Data and Hadoop, check out the following links: Hadoop Prajwal Gangadhar's answer to What is big data analysis? In Hadoop v2, the following features are available: Scalability - You can have a cluster size of more than 10,000 nodes and you can run more than 100,000 concurrent tasks. From the options listed below, select the suitable data sources for flume. The input is read line by line. Hadoop Quiz - 6. 48. TRUE b. This option is correct. b) Local data folders. Q.16 In paravirtualization, guest operating systems run in isolation. ( B ) a) TRUE. ( B) a) ALWAYS True. Navigate to "Custom spark-defaults" to configure MinIO parameters for _s3a_ connector. (True/False) 50. It enables the block storage layer. 3. Which of following is the programming model designed for processing large volumes of data in parallel by dividing the work into a set of independent tasks. Q.16 In paravirtualization, guest operating systems run in isolation. Gets both the data and block location from the namenode. We will replace the Form-based IdP configuration that Knox comes with out of the box with the pac4j federation . If false, correct the statement. Following Security > Local intranet > Sites > Advanced, make sure that the AD FS URL is in the list of websites. <p>Copy the filesystem metadata from primary namenode.</p>. Authentication Services. Compatibility - The applications developed for Hadoop v1 run on YARN without any disruption or availability issues. c) HBase. For federated domains, MFA may be enforced by Azure AD Conditional Access or by the on-premises federation provider. FALSE Answer: b 26. Key Points. ( B) a) ALWAYS True b) True only for Apache Hadoop c) True only for Apache and Cloudera Hadoop d) ALWAYS False 13. d) Both (a) and (b) 12. Ans: The core components of Flume are - Event- The single log entry or unit of data that is transported. clusters. alternatives. It is best for live streaming of data. Choos.. Thus, the memory becomes the limiting factor for scaling, and single NameNode becomes a bottleneck. Question 26. Hi everyone, My system have 2 datanode, 2 namenode, 3 journalnode, 3 zookeeper service I had config cluster namenode ok , when browsing the admin page namenode:50070 , I had see 1 name node status (active) and one namenode status (standby). (a) It is an open source data warehouse system to query and analyze large data stored in hadoop les. Apache Ranger™. Q.18 Which feature is needed to make enterprise application migrate to a private cloud? <p>Gets the data from the namenode</p>. 1 MB input file) d) Processing User clicks on a website. While HBase provides row-rise strong consistency, Riak, an open source implementation of Amazon's Dynamo, is an example of high available NoSQL database that compromises the . Periodically merge the namespace image with the edit log. which one of the following is false about hadoop. State which of the following are true 1.Views are a logical way of looking at the logical data located in the tables, 2.Views are a logical way of looking at the physical data located in the tables, 3.Tables are physical constructs used for storage and manipulation of data in databases, 4.Tables are logical constructs used for storage and manipulation of data in databases Both Map and. Most companies analyzing only very little percentage of their available data. Hadoop technology uses the MapReduce framework. 37. As input, you are given one le that contains a single line of text: Federation configuration is backward compatible and allows existing single Namenode configurations to work without any change. D. PIG is the third most popular form of meat in the US behind poultry and beef. When the SupportsMFA flag is set to True, Azure AD redirects users to MFA on AD FS or another federation providers. This Hadoop MCQ Test contains 35+ Hadoop Multiple Choice Questions.You have to select the right answer to every question. About Big Data Hadoop. Gets the block location from the datanode. For any query related to these Apache Hadoop MCQs, do leave a comment in a section given below. What was Hadoop named after? Uses JournalNodes to decide the active NameNode Allows non-Hadoop programs to access data in HDFS Allows multiple NameNodes with their own namespaces to share a pool of DataNodes Allows multiple NameNodes with their own namespaces to share a pool of DataNodes - correct Implements a resource manager external . Question 25. Solution. Pig is a part of the Apache Hadoop project that provides C-like scripting languge interface for data processing. The following section studies Apache HBase, a popular NoSQL database on Hadoop. FALSE Answer: a 25. Q.19 Which of the following cloud client constitute computers without a hard drive? 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