BPDB Assistant Engineer (CSE) Exam: 2021 (BUET)প্রশ্ন ও সমাধান
- Set by
- BPDB
- Post
- Assistant Engineer
- Exam date
- 2021
- Conducted by
- BUET
- Questions
- 5 (0 MCQ, 5 written)
- Exam guide
- Government IT officer posts · সরকারি প্রতিষ্ঠানের আইটি পদ
- Operating Systems · অপারেটিং সিস্টেম 2
- Algorithms · অ্যালগরিদম 1
- Database · ডেটাবেজ 1
- Programming · প্রোগ্রামিং 1
Short Question:
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A system uses 3 page frames for storing process pages in main memory. It uses the Least Recently Used (LRU) page replacement policy. Assume that all the page frames are initially empty. What is the total number of page faults that will occur while processing the page reference string given below? 4, 7, 6, 1, 7, 6, 1, 2, 7, 2.
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Shortest path algorithm (Djikstra's algorithm)
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Consider the Electrical Powr company database which has the following tables:
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Write down a shell script program that would add the line "This is my file" at the top of each file having the extention 'txt' in the current directory. Note that all the other contents of the .txt file(s) would remain unchanged and start from the second line.
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Question text is from the public recruitment exam; answers and explanations are written by ARBS Academy. All past papers · Government IT officer posts guide