PGCB Assistant Engineer (CSE) September 2021 – Written (BUET) question & solution
Questions from the PGCB Assistant Engineer (CSE) recruitment exam, September 2021 – Written (BUET), shared by the candidates who sat it. The paper: 7 written questions. So far 7 written questions have been shared. Topics include DBMS, Computer Networks, Digital Logic, Data Structure and Computer Architecture.
Written (7)
- Suppose, 'Employee' table (emp_id, emp_name, dept_id, salary) and 'Department' table (dept_id, dept_name, increment_dept). Create a tigger…
- In a "Class A" network total 20 subnets are needed with maximum 260 hosts per subnets. Can 255.255.255.0 subnet mask be used in this?
- Implement an X-OR gate using NAND gates. Use at most 4 NAND gates.
- Given an array of 6 elements: {15, 19, 10, 7, 17, 16}. Draw heap tree and again draw the tree after deletion of element 7 from this tree.
- Assume that for a certain processor, a read request takes 50 nanoseconds on a cache miss and 5 nanoseconds on a cache hit. Suppose while…
- Difference between blacklisting and whitelisting. Which is more secure and why?
- Write the data bus and address bus widths of an 8-bit microprocessor and a 16-bit microprocessor.