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

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

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

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

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

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

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

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

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

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

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