SGCL Assistant General Engineer 2021 – Written (BUET) question & solution

Questions from the SGCL Assistant General Engineer recruitment exam, 2021 – Written (BUET), shared by the candidates who sat it. The paper: 14 written questions. So far 14 written questions have been shared. Topics include Digital Logic, Coding, Operating System, Algorithm and DBMS.

Written (14)

  1. ABC̄D + ĀBD + ABCD: convert it into minimum literals.
  2. Find out the output of the following program. #include<stdlib.h> #include<string.h> int main(){ int i=0, length; char string[] = "Hello\0…
  3. Explain Semantic Error in a context of Compiler.
  4. Several substations of SGFL Company exist in different places of the city. You have to travel from one substation to another. Write an…
  5. Consider the following relational database schema consisting of the four relation schemas: passenger (pid, ppname, pgender, pcity) agency…
  6. Key difference between BLACK BOX and WHITE BOX testing.
  7. Key difference between supervised Learning and Unsupervised learning.
  8. Using the IP address 192.168.10.0/23 find out- (i) Subnet/First address (ii) Last Address (iii) Subnet mask
  9. Explain ARP Spoofing attack with diagram. Why is ARP spoofing used by attackers to launch a Man-in-the-Middle attack?
  10. A system uses 8 page frames to store process pages in main memory. It uses the minimum page replacement policy. Assume that all page…
  11. When does the parity bit occur in the microprocessors? What does it do?
  12. A directory called SGFL exists in your home directory. Write a Linux command to create a link to it called "SGFL-Link" in the home…
  13. Design a finite automaton for an elevator. The elevator can be at one of two floors: Ground or First. There is one button that controls…
  14. There are different types of clocks available in the market. What type of clock will you use to reduce the cost of SGFL Company?