This page was exported from New Braindump2go Exam Dumps [ https://www.eccouncildumps.com ] Export date:Sat Apr 19 18:19:54 2025 / +0000 GMT ___________________________________________________ Title: 100% Cloudera DS-200 New Questions Keep In Step With Cloudera Exam Centre! (1-12) --------------------------------------------------- QUESTION 1What is the result of the following command (the database username is foo and password is bar)?$ sqoop list-tables - - connect jdbc : mysql : / / localhost/databasename - - table - - username foo - - password bar A.    sqoop lists only those tables in the specified MySql database that have not already been imported into FDFSB.    sqoop returns an errorC.    sqoop lists the available tables from the databaseD.    sqoopimports all the tables from SQLHDFS Answer: CExplanation:https://www.inkling.com/read/hadoop-definitive-guide-tom-white-3rd/chapter-15/getting-sqoopQUESTION 2What is the most common reason for a k-means clustering algorithm to returns a sub-optimal clustering of its input? A.    Non-negative values for the distance functionB.    Input data set is too largeC.    Non-normal distribution of the input dataD.    Poor selection of the initial controls Answer: C QUESTION 3There are 20 patients with acute lymphoblastic leukemia (ALL) and 32 patients with acute myeloid leukemia (AML), both variants of a blood cancer.The makeup of the groups as follows: Each individual has an expression value for each of 10000 different genes. The expression value for each gene is a continuous value between -1 and 1.You've built your model for discriminating between AML and ALL patients and you find that it works quite well on your current data. One month later, a collaboration tells you she has fresh data from 100 new AML/ALL patients. You run the samples through your model, and turns out your model has very poor predictive accuracy on the new samples; specifically, your model predicts that all males have ALL. What is the most reliable way to fix this problem? A.    Change the distance metricB.    Reduce the number of dimensionsC.    Use a Gibbs sampler on a Bayesian networkD.    Perform matched sampling across other provided variables Answer: D QUESTION 4There are 20 patients with acute lymphoblastic leukemia (ALL) and 32 patients with acute myeloid leukemia (AML), both variants of a blood cancer.The makeup of the groups as follows: Each individual has an expression value for each of 10000 different genes. The expression value for each gene is a continuous value between -1 and 1.You want to use the data from the 52 patients in the scenario to improve the ability of doctors being able to distinguish between ALL and AML. What type of data science problem is this? A.    ClassificationB.    RegressionC.    ClusteringD.    Filtering Answer: D QUESTION 5There are 20 patients with acute lymphoblastic leukemia (ALL) and 32 patients with acute myeloid leukemia (AML), both variants of a blood cancer.The makeup of the groups as follows: Each individual has an expression value for each of 10000 different genes. The expression value for each gene is a continuous value between -1 and 1.With which type of plot can you encode the most amount of the data visually? A.    A heat map sorting the individuals by groupB.    A histogram of the expression valuesC.    A scatter plot of two largest principal components Answer: C QUESTION 6There are 20 patients with acute lymphoblastic leukemia (ALL) and 32 patients with acute myeloid leukemia (AML), both variants of a blood cancer.The makeup of the groups as follows: Each individual has an expression value for each of 10000 different genes. The expression value for each gene is a continuous value between -1 and 1.With which type of plot can you encode the most amount of the data visually?Rather than use all 10,000 features to separate AML from ALL, you pick a small subnet of features to separate them optimally. You feature vectors have 10,000 dimensions while you only have 52 data points. You use cross-validation to test your chosen set of features. What three methods will choose the features in an optimal way? A.    Singular value DecompositionB.    BootstrappingC.    Markov chain Monte CarloD.    Hidden MarkovE.    Bayesian Information CriterionF.    Mutual Information Answer: CDF QUESTION 7There are 20 patients with acute lymphoblastic leukemia (ALL) and 32 patients with acute myeloid leukemia (AML), both variants of a blood cancer.The makeup of the groups as follows: Each individual has an expression value for each of 10000 different genes. The expression value for each gene is a continuous value between -1 and 1.With which type of plot can you encode the most amount of the data visually?You choose to perform agglomerative hierarchical clustering on the 10,000 features. How much RAM do you need to hold the distance Matrix, assuming each distance value is 64-bit double? A.    ~ 800 MBB.    ~ 400 MBC.    ~ 160 KBD.    ~ 4 MB Answer: B QUESTION 8You 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)You performed singular value decomposition (SVD; also called principal components analysis or PCA) on you data matrix but you did not center your data first. What does your first singular component describe? A.    The mean of the data setB.    The variance of the data setC.    The standard deviation of the data setD.    The maximum of the data setE.    The median of the data set Answer: C QUESTION 9You 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)Refer to the passage above.What represents the SVD of the Matrix standard M given the following information:U is m x m unitaryV is n x n unitaryS is m x n diagonalQ is n x n invertibleD is n x n diagonalL is m x m lower triangularU is m x m upper triangular A.    M = U S VB.    M = U PC.    M = Q D Q-1D.    M = L U Answer: A QUESTION 10Many machine learning algorithm involve finding the Global minimum of a convex loss function, primarily because: A.    The additive inverse of a convex function is concaveB.    The derivative of convex function is always definedC.    The second derivative of a convex function is a constantD.    Any local minimum of a convex is also a global minimum Answer: B QUESTION 11You 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)For the moment, assume that your data matrix M is 500 x 2. The figure below shows a plot of the data. Which line represents the second principal component? A.    BlueB.    Yellow Answer: A QUESTION 12Which two techniques should you use to avoid overfitting a classification model to a data set? A.    Include a small number "noise" features that are not through to be correlated with the dependent variable.B.    Replicate features that are through to be significant predicators of the dependent variable multiple time for each observation.C.    Separate your input data into a training set that is used for fitting and a test set that is used forevaluating the model's performanceD.    Include a regularization term in the model's objective function to control how precisely the model fits the dataE.    Preprocess the data to exclude a typical observation from the model input Answer: AE Braindump2go New Released Cloudera DS-200 Dump PDF Free Download, 71 Questions in all, Passing Your Exam 100% Easily! http://www.braindump2go.com/ds-200.html --------------------------------------------------- Images: http://examgod.com/l2pimages/1206a870634b_9661/wpsEA70.tmp_thumb_thumb_thumb_thumb_thumb_thumb_thumb_thumb_thumb_thumb_thumb_thumb_thumb_thumb.png http://examgod.com/l2pimages/1206a870634b_9661/wps1CE5.tmp_thumb_thumb_thumb_thumb_thumb_thumb_thumb_thumb_thumb_thumb_thumb_thumb_thumb_thumb.png http://examgod.com/l2pimages/1206a870634b_9661/wps6867.tmp_thumb_thumb_thumb_thumb_thumb_thumb_thumb_thumb_thumb_thumb_thumb_thumb_thumb_thumb.png http://examgod.com/l2pimages/1206a870634b_9661/wpsA816.tmp_thumb_thumb_thumb_thumb_thumb_thumb_thumb_thumb_thumb_thumb_thumb_thumb_thumb_thumb.png http://examgod.com/l2pimages/1206a870634b_9661/wpsC538.tmp_thumb_thumb_thumb_thumb_thumb_thumb_thumb_thumb_thumb_thumb_thumb_thumb_thumb_thumb.png http://examgod.com/l2pimages/1206a870634b_9661/wpsF06D.tmp_thumb_thumb_thumb_thumb_thumb_thumb_thumb_thumb_thumb_thumb_thumb_thumb_thumb_thumb.png --------------------------------------------------- --------------------------------------------------- Post date: 2014-11-21 02:43:37 Post date GMT: 2014-11-21 02:43:37 Post modified date: 2014-11-21 02:43:37 Post modified date GMT: 2014-11-21 02:43:37 ____________________________________________________________________________________________ Export of Post and Page as text file has been powered by [ Universal Post Manager ] plugin from www.gconverters.com