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

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

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

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

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

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

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

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

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

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

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