Cisco Data Scientist Interview Questions

1100+ verified questions, indexed by team and level. Real questions submitted by candidates who completed Cisco loops in the last 24 months.

About the Cisco Data Scientist hiring loop

Cisco technical interviews skew networking-deep — BGP, OSPF, TCP/IP internals, SDN, security protocols. Software rounds are moderate coding plus systems-programming (C/C++ heavy). Behavioural rounds emphasise cross-team collaboration.

Data Science rounds score on statistical rigour, metric definition quality, SQL fluency, framework clarity for case studies, and communication of uncertainty. Companies weight experimental design vs ML modelling differently.

Topics covered in Cisco Data Scientist interviews

  • 01Probability + statistics (hypothesis tests, A/B testing, p-values)
  • 02SQL fluency under time pressure
  • 03Machine learning fundamentals (bias-variance, regularisation, evaluation metrics)
  • 04Experimental design (sample size, power, interference)
  • 05Analytical case studies with metric definition
  • 06Stakeholder communication of statistical results

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