MCQOPTIONS
Saved Bookmarks
MCQOPTIONS
This section includes 93 Mcqs, each offering curated multiple-choice questions to sharpen your Mongodb knowledge and support exam preparation. Choose a topic below to get started.
| 51. |
Which of the following is a widely used and effective machine learningalgorithm based on the idea of bagging? |
| A. | Decision Tree |
| B. | Regression |
| C. | Classification |
| D. | Random Forest |
| Answer» E. | |
| 52. |
Which of the following can be used to create sub–samples using a maximumdissimilarity approach? |
| A. | minDissim |
| B. | maxDissim |
| C. | inmaxDissim |
| D. | All of the Mentioned |
| Answer» C. inmaxDissim | |
| 53. |
p → 0q is not a? |
| A. | hack clause |
| B. | horn clause |
| C. | structural clause |
| D. | system clause |
| Answer» C. structural clause | |
| 54. |
How many main statistical methodologies are used in data analysis? |
| A. | 2 |
| B. | 3 |
| C. | 4 |
| D. | 5 |
| Answer» B. 3 | |
| 55. |
Which of the following is true about hypothesis testing? |
| A. | answering yes/no questions about the data |
| B. | estimating numerical characteristics of the data |
| C. | describing associations within the data |
| D. | modeling relationships within the data |
| Answer» B. estimating numerical characteristics of the data | |
| 56. |
The overall percentage of the world’s total data has been created just withinthe past two years is ? |
| A. | 80% |
| B. | 85% |
| C. | 90% |
| D. | 95% |
| Answer» D. 95% | |
| 57. |
What is the work of Data Architect? |
| A. | utilize large data sets to gather information that meets their company's needs |
| B. | work with businesses to determine the best usage of the information yielded from data |
| C. | build data solutions that are optimized for performance and design applications |
| D. | All of the above |
| Answer» D. All of the above | |
| 58. |
How do you handle missing or corrupted data in a dataset? |
| A. | Drop missing rows or columns |
| B. | Replace missing values with mean/median/mode |
| C. | Assign a unique category to missing values |
| D. | All of the above |
| Answer» E. | |
| 59. |
Which of the following is not a application for data science? |
| A. | Recommendation Systems |
| B. | Image & Speech Recognition |
| C. | Online Price Comparison |
| D. | Privacy Checker |
| Answer» E. | |
| 60. |
Which of the following is a reasonable way to select the number ofprincipal components "k"? |
| A. | Choose k to be the smallest value so that at least 99% of the varinace is retained. |
| B. | Choose k to be 99% of m (k = 0.99*m, rounded to the nearest integer). |
| C. | Choose k to be the largest value so that 99% of the variance is retained. |
| D. | Use the elbow method. |
| Answer» B. Choose k to be 99% of m (k = 0.99*m, rounded to the nearest integer). | |
| 61. |
Which of the following is a disadvantage of decision trees? |
| A. | Factor analysis |
| B. | Decision trees are robust to outliers |
| C. | Decision trees are prone to be overfit |
| D. | None of the above |
| Answer» D. None of the above | |
| 62. |
The action _______ of a robot arm specify to Place block A on block B. |
| A. | STACK(A,B) |
| B. | LIST(A,B) |
| C. | QUEUE(A,B) |
| D. | ARRAY(A,B) |
| Answer» B. LIST(A,B) | |
| 63. |
A model of language consists of the categories which does not include________. |
| A. | System Unit |
| B. | structural units. |
| C. | data units |
| D. | empirical units |
| Answer» C. data units | |
| 64. |
Data Analysis is a process of? |
| A. | inspecting data |
| B. | cleaning data |
| C. | transforming data |
| D. | All of the above |
| Answer» E. | |
| 65. |
__________ can best be described as a programming model used to developHadoop-based applications that can process massive amounts of data. |
| A. | MapReduce |
| B. | Mahout |
| C. | Oozie |
| D. | All of the mentioned |
| Answer» B. Mahout | |
| 66. |
Causal analysis is commonly applied to census data. |
| A. | True |
| B. | False |
| C. | Can be true or false |
| D. | Can not say |
| Answer» C. Can be true or false | |
| 67. |
Which of the following is correct skills for a Data Scientist? |
| A. | Probability & Statistics |
| B. | Machine Learning / Deep Learning |
| C. | Data Wrangling |
| D. | All of the above |
| Answer» E. | |
| 68. |
Which of the following is a revision control system? |
| A. | Git |
| B. | Numpy |
| C. | Scipy |
| D. | Slidify |
| Answer» B. Numpy | |
| 69. |
Which of the following is not a part of data science process? |
| A. | Discovery |
| B. | Model Planning |
| C. | Communication Building |
| D. | Operationalize |
| Answer» D. Operationalize | |
| 70. |
Data visualization is also an element of the broader _____________. |
| A. | deliver presentation architecture |
| B. | data presentation architecture |
| C. | dataset presentation architecture |
| D. | data process architecture |
| Answer» C. dataset presentation architecture | |
| 71. |
ML is a field of AI consisting of learning algorithms that? |
| A. | Improve their performance |
| B. | At executing some task |
| C. | Over time with experience |
| D. | All of the above |
| Answer» E. | |
| 72. |
Which of the following is not a major data analysis approaches? |
| A. | Data Mining |
| B. | Predictive Intelligence |
| C. | Business Intelligence |
| D. | Text Analytics |
| Answer» C. Business Intelligence | |
| 73. |
________ Programming language is dialect of S. |
| A. | B |
| B. | C |
| C. | R |
| D. | None of the above |
| Answer» D. None of the above | |
| 74. |
Which of the following plots are often used for checking randomness intime series? |
| A. | Autocausation |
| B. | Autorank |
| C. | Autocorrelation |
| D. | None of the above |
| Answer» D. None of the above | |
| 75. |
Listed below are the three steps that are followed to deploy a Big DataSolution except |
| A. | Data Processing |
| B. | Data dissemination |
| C. | Data Storage |
| D. | Data Ingestion |
| Answer» C. Data Storage | |
| 76. |
Different learning methods does not include? |
| A. | Introduction |
| B. | Analogy |
| C. | Deduction |
| D. | Memorization |
| Answer» B. Analogy | |
| 77. |
Which of the following statements about regularization is not correct? |
| A. | Using too large a value of lambda can cause your hypothesis to underfit the data. |
| B. | Using too large a value of lambda can cause your hypothesis to overfit the data |
| C. | Using a very large value of lambda cannot hurt the performance of your hypothesis. |
| D. | None of the above |
| Answer» E. | |
| 78. |
Which of the following language is used in Data science? |
| A. | C |
| B. | C++ |
| C. | R |
| D. | Ruby |
| Answer» D. Ruby | |
| 79. |
How many V's of Big Data |
| A. | 2 |
| B. | 3 |
| C. | 4 |
| D. | 5 |
| Answer» E. | |
| 80. |
Which of the following focuses on the discovery of (previously) unknownproperties on the data? |
| A. | Data mining |
| B. | BigData |
| C. | Data wrangling |
| D. | Machine Learning |
| Answer» B. BigData | |
| 81. |
Which of the following sorting is not supported by MongoDB? |
| A. | collation |
| B. | collection |
| C. | heap |
| D. | none of the mentioned |
| Answer» B. collection | |
| 82. |
MongoDB uses a ____________ lock that allows concurrent read access to a database but exclusive write access to a single write operation. |
| A. | readers |
| B. | readers-writer |
| C. | writer |
| D. | none of the mentioned |
| Answer» C. writer | |
| 83. |
MongoDB supports fixed-size collections called ____________ collections. |
| A. | primary |
| B. | secondary |
| C. | capped |
| D. | all of the mentioned |
| Answer» D. all of the mentioned | |
| 84. |
_____________ can be used for batch processing of data and aggregation operations. |
| A. | Hive |
| B. | MapReduce |
| C. | Oozie |
| D. | None of the mentioned |
| Answer» C. Oozie | |
| 85. |
MongoDB can be used as a ____________ taking advantage of load balancing and data replication features over multiple machines for storing files. |
| A. | AMS |
| B. | CMS |
| C. | File system |
| D. | None of the mentioned |
| Answer» B. CMS | |
| 86. |
MongoDB provides high ____________ with replica sets. |
| A. | performance |
| B. | availability |
| C. | scalability |
| D. | none of the mentioned |
| Answer» C. scalability | |
| 87. |
MONGODB_USES_A______________LOCK_THAT_ALLOWS_CONCURRENT_READ_ACCESS_TO_A_DATABASE_BUT_EXCLUSIVE_WRITE_ACCESS_TO_A_SINGLE_WRITE_OPERATION.?$ |
| A. | readers |
| B. | readers-writer |
| C. | writer |
| D. | none of the mentioned |
| Answer» C. writer | |
| 88. |
Which_of_the_following_sorting_is_not_supported_by_MongoDB_?$ |
| A. | collation |
| B. | collection |
| C. | heap |
| D. | none of the mentioned |
| Answer» B. collection | |
| 89. |
MongoDB supports fixed-size collections called ____________ collections? |
| A. | primary |
| B. | secondary |
| C. | capped |
| D. | all of the mentioned |
| Answer» D. all of the mentioned | |
| 90. |
MongoDB can be used as a ____________, taking advantage of load balancing and data replication features over multiple machines for storing files. |
| A. | AMS |
| B. | CMS |
| C. | File system |
| D. | None of the mentioned |
| Answer» B. CMS | |
| 91. |
MongoDB scales horizontally using _________ for load balancing purpose. |
| A. | Replication |
| B. | Partitioning |
| C. | Sharding |
| D. | None of the mentioned |
| Answer» D. None of the mentioned | |
| 92. |
___________ replicas maintain a copy of the data on the primary using built-in replication. |
| A. | Primary |
| B. | Secondary |
| C. | Backup |
| D. | All of the mentioned |
| Answer» C. Backup | |
| 93. |
MongoDB provides high ____________ with replica sets. |
| A. | performance |
| B. | availability |
| C. | scalability |
| D. | none of the mentioned |
| Answer» C. scalability | |