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

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

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

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

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5. The histogram is extracted from _______ values? Octal
Binary
Decimal
Numerical

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

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

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8. What does a lightning boll on the right corner of the Pi screen means? Low Power
SD Card Low Memory
Low Memory
None of these

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

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

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

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

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

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

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

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

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

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

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

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

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