Sonali Bank Officer (IT) 2021 – Written question & solution

Questions from the Sonali Bank Officer (IT) recruitment exam, 2021 – Written, shared by the candidates who sat it. The paper: 14 written questions. So far 13 written questions have been shared. Topics include Computer Networks, Coding, DBMS, English and Web Technology.

Written (13)

  1. What is Web caching? Why do we use web caching?
  2. Write a programme in C/C++/Java what finds sum of digits of a number until sum becomes single digit, simple input/output is: Input: 12345…
  3. What is DNS Resolver?
  4. What is a TCP Three-way handshaking step?
  5. What is DDoS and SQL Injection attack?
  6. What is VPN? Why do we use it?
  7. What is difference between link state routing and distance vector routing?
  8. Write difference between relational database and NoSQL database.
  9. Write a C program to compute the perimeter and area of a circle with a given radius.
  10. Draw an ER diagram of a railway service system.
  11. TDM math: rate= 1.536 Mbps, message size= 960000, Slot=32, end to end circuit Switch time=800ms, calculate transfer time.
  12. Translation Bangla to English.
  13. English focus: Telecommunication in Developing Economic sector.