CEC 220 Operating systems principles and compilers Exam 2025
About this paper
CEC 220: A first-semester examination for Operating Systems Principles and Compilers (CEC220) at the University of Buea, College of Technology, Department of Computer Engineering, instructor Mr. Baloko (year not printed on the sideways-scanned, faint source). Section A is 50 multiple-choice questions covering OS fundamentals (modes, memory hierarchy, processes/threads, page replacement, deadlock conditions, MMU, partition allocation, paging, OS types, context switching, Banker's algorithm, file operations, records, microkernels, TLB) and compiler fundamentals (lexical/syntax/semantic analysis, tokens/lexemes, parsing, symbol tables, DFAs, identifiers, parser types). Section 2 is 4 application exercises: Optimal page-replacement algorithm on a reference string, average waiting time under FCFS/SJF/Priority scheduling for a 5-process table, the role of lexical analysis with C token categories, and semantic analysis tasks with an example error.
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University of Buea
College of Technology - COT
Computer Engineering - CET
Operating systems principles and compilers
Exam · Second Semester · Level 200
From this paper
- 1.
Which mode of operation allows execution of any instruction? A) User mode B) Kernel mode C) Protected mode D) Real mode
- 2.
What is the typical access time for main memory in a typical memory hierarchy? A) 1 nsec B) 2 nsec C) 10 nsec D) 10 msec
At a glance
- Course code
- CEC220 (CEC 220)
- Type
- Exam
- Year
- 2025
- Level
- Level 200
- Semester
- Second Semester
- Proposed solution
- Included
Where it's from
University
University of BueaFaculty
College of Technology - COTDepartment
Computer Engineering - CET
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