Data Science interview questions part 7
Data Science interview questions part 7
Take as many assements as you can to improve your validate your skill rating
Total Questions: 20
1. In what time can a leftist heap be built?
Correct Answer is : TRUE
2. What is the order of a matrix?
Correct Answer is : .describe()
3. Which of the following property does not hold for matrix multiplication?
Correct Answer is : Categorical.rename_categories()
4. How do you allocate a matrix using a single pointer in C?(r and c are the number of rows and columns respectively)
Correct Answer is : TRUE
5. Select the code snippet which performs matrix multiplication.(a and b are the two given matrices, resultant marix is c)
Correct Answer is : None of the Mentioned
6. What does the following piece of code do? for(int i = 0; i < row; i++) { for(int j = 0; j < column; j++) { if(i == j) sum = sum + (array[i][j]); } } System.out.println(sum);
Correct Answer is : Least square is an estimation tool
7. If row-major order is used, how is the following matrix stored in memory? a b c d e f g h i
Correct Answer is : 6
8. If column-major order is used, how is the following matrix stored in memory? a b c d e f g h i
Correct Answer is : None of the Mentioned
9. Which of the following are the uses of matrices?
Correct Answer is : Simple linear regression is equipped to handle more than one predictor
10. What is the disadvantage of matrices?
Correct Answer is : Boosting
11. Matrix A when multiplied with Matrix C gives the Identity matrix I, what is C?
Correct Answer is : R
12. Which technique is used for finding similarity between two sets?
Correct Answer is : Bootstrap aggregating
13. Who invented the MinHash technique?
Correct Answer is : Original version of data
14. Which technique was firstly used to remove duplicate web pages from search results in AltaVista search engine?
Correct Answer is : FALSE
15. Which technique was firstly used clustering documents using the similarity of two words or strings?
Correct Answer is : Principle 3
16. Which indicator is used for similarity between two sets?
Correct Answer is : Descriptions can be generalized without statistical modelling
17. Which of the following is defined as the ratio of total elements of intersection and union of two sets?
Correct Answer is : Exploratory
18. What is the value of the Jaccard index when the two sets are disjoint? A) 1 b) 2 c) 3 d) 0
Correct Answer is : git command -m
19. When are the members of two sets more common relatively?
Correct Answer is : Exploratory analyses are usually the final way
20. What is the expected error for estimating the Jaccard index using MinHash scheme for k different hash functions?
Correct Answer is : Predictive
