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CDK Global Interview Questions and Answers

Updated 21 Aug 2024
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Q1. Any application software,Power quality, Energy metering monitoring software works.

Ans.

Yes, application software for power quality and energy metering monitoring works effectively.

  • Application software can effectively monitor power quality and energy metering data

  • These software can provide real-time data analysis and reporting

  • Examples include Power Monitoring Software, Energy Management Software, and Smart Metering Software

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Q2. IEC /IEEE standards on PQ issues

Ans.

IEC/IEEE standards provide guidelines for addressing power quality issues in testing.

  • IEC 61000 series provides standards for electromagnetic compatibility (EMC) testing

  • IEEE 1159 standard focuses on monitoring and analyzing power quality

  • IEC 61000-4-30 standardizes measurement methods for power quality parameters

  • Compliance with these standards ensures reliable and accurate testing results

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Q3. Details of PQ Harmonics grid codes etc

Ans.

PQ harmonics refer to the quality of power in electrical grids, including voltage and current harmonics.

  • PQ harmonics are regulated by grid codes to ensure the quality of power supplied to consumers.

  • Grid codes specify limits on harmonic distortion levels to prevent negative impacts on equipment and systems.

  • Examples of grid codes include IEEE 519 and EN 50160.

  • Harmonics can cause issues such as overheating in transformers and interference with communication systems.

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Q4. Debugging from testing point of view

Ans.

Debugging in testing involves identifying and fixing issues in software to ensure its functionality.

  • Identify the root cause of the issue by reproducing the bug

  • Use debugging tools like breakpoints, logging, and tracing to track the issue

  • Collaborate with developers to resolve the bug efficiently

  • Perform regression testing to ensure the fix did not introduce new issues

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Discover CDK Global interview dos and don'ts from real experiences

Q5. Revere a String without using inbuilt methods

Ans.

Reversing a string without using inbuilt methods

  • Create an empty string to store the reversed string

  • Iterate through the original string from end to start and append each character to the new string

  • Return the reversed string

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Q6. Reverse using recursion Reverse using loop

Ans.

Reverse array of strings using recursion and loop

  • To reverse using recursion, pass the array without the first element to the recursive function until the array is empty

  • To reverse using loop, iterate through the array from the end to the beginning and store each element in a new array

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Interview Process at CDK Global

based on 3 interviews
1 Interview rounds
Technical Round
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