RAKUB Engineer June 2026 – Written question & solution

Questions from the RAKUB Engineer recruitment exam, June 2026 – Written, shared by the candidates who sat it. The paper: 20 written questions. So far 20 written questions have been shared. Topics include Computer Networks, General Knowledge, Operating System, Emerging Technology and Computer Architecture.

Written (20)

  1. A satellite link has a one way propagation delay of 250 ms and a transmission rate 1 Mbps. Frame size 1000 bytes , calculate utilization…
  2. A core router receives a packet with destination IP address 192.168.20.45. The router's forwarding table contains the following…
  3. A net link utilize 16QAM. If the unerlying signal system operates at bound rate 2400 Baud. Calculate exact Corresponding data in bps.
  4. Why does IPv6 header architecture faster processing than IPv4 architecture.
  5. An engineering model is deployed to identify critical network hardware failures. Explain why an a administrator must optimize for recall…
  6. Define Amdahl's law. How does it mathematically dictate the absolute maximum performance speedup a system can achieve when adding more cpu…
  7. State the exact administrative active performed by running the command chmod 755 script.sh on a linux target file.
  8. A high traffic web application suddenly begins failing with database connection timeouts under peak load. At the same time, the underlying…
  9. Explain the distinct filtering behaviors of a WHERE clause versus a HAVING clause withing a SQL statement containing an aggregate…
  10. Reflected XSS & stored XSS in terms of how the payload is delivered to the victim
  11. A corporate network pool experience IP exhaustion due to a high volume of transient guest devices. What lease duration parameter…
  12. A network admin notice excessive broadcast traffic in a LAN. cause & solution.
  13. Difference between Compile time error & Runtime Error
  14. Essay: Has social media helped or harmed students' study?
  15. রচনা: চিকিৎসা-প্রযুক্তির মাধ্যমে বেদনাদায়ক স্মৃতি মুছে ফেলা কি ভালো?
  16. Which country lies entirely above 1,000 m?
  17. Which metal has the highest melting point?
  18. What is the deepest point in the oceans?
  19. What is the SI unit of conductance?
  20. Which is the longest river of Bangladesh?

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