Ensurepass  QUESTION 31 What is default delimiterfor Hive tables?   A. ^A (Control-A) B. , (comma) C. t (tab) D. : (colon)   Answer: A Reference:http://blog.spryinc.com/2013/10/four-useful-tricks-for-working-with- hive.html(change the delimiter when exporting hive table)             QUESTION 32 Consider the following sample from a distribution that contains a continuous X and label Y that is either A or B:     Whichis the best Read more [...]
Ensurepass  QUESTION 11 You have a large m x n data matrix M.You decide you want to perform dimension reduction/clustering on your data and have decide to use the singular value decomposition (SVD; also called principal components analysis PCA)   Forthe moment, assumethat your data matrixM is 500 x 2.The figure belowshows a plotof the data.           Which line representsthe secondprincipalcomponent?   A. Blue B. Yellow & nbsp; Answer: A     Read more [...]
Ensurepass  QUESTION 21 Given the following sample of numbers from a distribution:   1, 1, 2, 3, 5, 8, 13, 21, 34, 55, 89   What are the five numbers that summarizethis distribution(the fivenumbersummary of samplepercentiles)?   A. 1, 3, 8, 34, 89 B. 1, 4, 13, 34, 89 C. 1, 1.5, 5, 24.5, 89 D. 1, 2.5, 8, 27.5, 89   Answer: A     QUESTION 22   Which two machinelearning algorithmshould you consideras likely to benefitfrom discretizing continuousfeatures? Read more [...]
Ensurepass  Exam A   QUESTION 1 What is the result of thefollowing command (thedatabase username is foo and password is bar)?   $ sqoop list-tables - -connect jdbc :mysql: / /localhost/databasename - -table - - usernamefoo - -password bar   A. sqoop lists only those tables in the specified MySql database that have not already been imported into FDFS B. sqoop returns an error C. sqoop lists the available tables from the database D. sqoopimports all the tables from Read more [...]