Data Science Mock Test 5

10%

Question 1 of 10

1. Base graphics are used most commonly for creating 2D graphics.

False

True

Question 1 of 10

Question 2 of 10

2. Which of the following is required by K-means clustering?

defined distance metric

number of clusters

all of the mentioned

initial guess as to cluster centroids

Question 2 of 10

Question 3 of 10

3. Point out the wrong statement.

None of the mentioned

File devices are useful for creating plots that can be included in other documents or sent to other people

For file devices, there are vector and bitmap formats

Plots must be created on a graphics device

Question 3 of 10

Question 4 of 10

4. Which of the following is an example of graphics device?

JPEG

SVG

PDF

All of the mentioned

Question 4 of 10

Question 5 of 10

5. Which of the following will copy the plot from one device to another?

dev.copy

all of the mentioned

dev.device

dev.copypdf

Question 5 of 10

Question 6 of 10

6. There are mainly three types of file devices.

True

False

Question 6 of 10

Question 7 of 10

7. Point out the correct statement.

On Unix, the screen device is launched with x12

On Windows, the screen device is launched with wind

On Mac, the screen device is launched with quartz

All of the mentioned

Question 7 of 10

Question 8 of 10

8. Which of the following annotation function is used to add or modify text?

graph

word

lines

all of the mentioned

Question 8 of 10

Question 9 of 10

9. Which of the following is the second goal of PCA?

statistical analysis

data dredging

all of the mentioned

data compression

Question 9 of 10

Question 10 of 10

10. Every open graphics device is assigned an integer greater than 2.

False

True

Question 10 of 10