Test Your Programming Skills with Safcode!

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Here is all important interview / exams questions.
Student doing practice apptitude test on safcode platform.
Instruction: "Total Number of Questions: 20
Each question carry 10 mark , no negative marking"

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Quiz Start

1. Which of the following devices is used to share a single internet connection with multiple networks? Hub
Router
Switch
LAN Card

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2. What is the process of extracting unique characteristics of a face called? Data Gathering
Face Detection
Data comparison
Face recognition

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3. Which layer has full-duplex and half-duplex modes of operation? Session layer
Transport layer
Presentation layer
Data link layer

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4. Which is calculated on the basis of number of peaks in data? Modality
None of these
Mean
Median

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5. Which command to user to know the current directory you are working on? curdir
ls
wd
pwd

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6. What function is used to detect a face from an image that the user loads as an input? detectMultiScale
cropped_face
face_extracter()
minNeighbors

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7. What is not the part of unsupervised learning? Non-Parametric
Clustering
Dimensional Reduction
Parametric

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8. Which acts as MISO MOSI pair of Serial Peripherals interface 1? 15, 16
19, 20
4, 5
5, 8

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9. Which command is used to create a blank file? Touch
File
VI
Create

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10. LPF in images filtering process is used for _______? Sharping the image
Blurring image
Filtering the image
Edge detection

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11. Which is the purpose of HSV color space? Color selection
Hue value
Color Segmentation
Color verification

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12. What range of integer values is categorized to be an edge? Above L
Below L
Below U
Above U

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13. What is the name of the trained output file? Trained.yml
Trained.doc
Trained.jpg
Trained.xml

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14. Which two GPIO pins have fixed pull up resistors? GPIO2 & GPIO3
GPIO25 & GPIO5
GPIO15 & GPIO18
GPIO20 & GPIO19

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15. Which step is based on the premise more images in the training set, the better it is? Data filtering
Data comparison
Creating test data
Collecting image samples

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16. Which pin acts as EEPROM Clock? GPIO4
GPIO3
GPIO1
GPIO2

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17. Which of the following is a device used to split or share a network connection among multiple computers? Router
Hub
Switch
NIC Card

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18. Which module of OpenCV includes 3D reconstruction and calibration? viz
imgproc
core
callin3D

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19. Which GPIO acts as Recievers(RX)? GPIO16
GPIO17
GPIO13
GPIO15

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20. How many nodes can twisted-pair cables host to the maximum? 1024
32
64
1064

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