Hadoop - Study guides, Class notes & Summaries

For data in motion. Powered by Apache NiFi. 1) real-time - add, trace, adjust; 2) integrated - common input, output, transformation; 3) secure - security rules, encryption, traceability; 4) adaptive - adapts data flow, scalable; if connection poor skinnies down data - >>>>Hortonworks Data Flow (HDF) A user-driven process of searching for patterns or specific items in a data set. Data discovery applications use visual tools such as geographical maps, pivot-tables, and heat-maps t...

True & False The objective of SOL performance tuning on the client side is to generate an SOL query that returns the correct answer in the least amount of time, using the maximum amount of resources on the server side All database transactions must display at least the properties of Atomicity, consistency, convenience, and isolation Database recovery techniques are based on the isolation transaction property which indicate that the data used during execution of a transaction cannot...

What project was Hadoop originally a part of and what idea was that project based on? - >>>>Nutch. It was based on returning web search results faster by distributing data and calculations across different compters. Fill in the blank. The solution to cataloging the increasing number of web pages in the late 1900's and early 2000's was _______. - >>>>Automation T/F: The Cassandra File System has many advantages over HDFS, but simpler deployment is not one of them. ...

True or false, sources of dat are becoming larger and more diverse True, Billions or even trillions of data sources What is the goal of data processing? To extract data that is useful Why is the volume of data that is available so large? Increasing number of data sources (social media, wearable tech, sensors, cameras, etc), formats, and data points How much data is possibly generated in a day? A petabyte (1 million GB) What is scalable data processing? Allows database processing systems ...

Big Data Questions and Answers Already Passed What is Big Data? Big data is a term which is used to describe any data set that is so large and complex that it is difficult to process using traditional applications. T/F: Big Data is an objective term? False. Describe at least three sources of Big Data. Archives, Machine logs, Public Web, Sensor Data, Social Media State and explain the characteristics of Big Data: Volume The vast amount of data that must be dealt with. State a...

HADOOP 444 bigdata 8 Apache Hive 603 - University of Maryland, Baltimore Draw an architectural diagram of Hive with Hadoop and Spark? Show all components. What is the Hive SerDe interface for IO? What is it used for? Describe its benefits? What is the difference between Hive managed tables and external tables? Give examples? Let's look at the fundamental differences between hive internal and external tables now that we've covered the foundations of Hive tables in Hive Data Models. The DESCRIBE...

WGU D491 INTRODUCTION TO ANALYTICS NEWEST EXAM ACTUAL EXAM VERIFIED QUESTIONS AND DETAILED CORRECT ANSWERS ALREADY GRADED A+ BY EXPERTS. Which tool would be most suitable for preparing this data? Hadoop Which sequence of steps should you follow during the data preparation phase? Set up sandbox, extract and transform data, condition data, explore visually In the data analytics process, which phase focuses on identifying candidate models for clustering, classifying, or finding rela...

It is important for Big Data and self-service business intelligence to go hand in hand to get maximum value from analytics. (T/F) - correct answer True Hadoop and MapReduce require each other to work. (T/F) - correct answer False There is a clear difference between the type of information support provided by influential users versus the others on Twitter. (T/F) - correct answer True Which Big Data approach promotes efficiency, lower cost, and better performance by processing jobs in ...

UGBA 104 Excel Midterm 1 Exam with Correct Answers 100% decision analysis - CORRECT ANSWER-Definition: A technique used to develop an optimal strategy when a decision maker is faced with several decision alternatives and an uncertain set of future events. Internet of Things (IoT) - CORRECT ANSWER-Definition: The technology that allows data collected from sensors in all types of machines to be sent over the Internet to repositories where it can be stored and analyzed. optimization mode...

What is Big Data? - Answer--A collection of data sets so large and complex that it becomes difficult to process using on-hand database management tools or traditional data processing applications (Hadoop) -A buzzword/catch-phrase used to describe a massive volume of both structured and unstructured data How many bytes of data are produced yearly? (IBM) - Answer-2.5 Quintillion Why is Big Data important? (MT/IBM Study) - Answer--Top-performing organizations use analytics five times more ofte...