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Free download of Sikkim Manipal University, SMU previous year, last year, sample question paper for  : [Operating Systems ] BT0070 . Find question and answer for Part-A 2 marks, Part-B 4 Marks and Part-C 8 marks. Free download of question paper of previous year test.   Operating Systems , BT0070 question paper includes multiple choice options and answer also.

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   SMU >> BSc IT >> BT0070

   Operating Systems

This is the collection of Sikkim Manipal University (SMU) question paper for BSc IT - Operating Systems . It will help you to prepare your examination. All questions are classified as per question type like PART - A of 2 marks, PART - B of 4 marks and PART - C of 8 marks same as actual examination. SMU question paper set which includes year 2017, 2016, 2015 SMU question papers of Operating Systems are updated regularly and it is absolutely free to use. SMU Question paper includes multiple choice question and answer as same as real and original examination. It will help you to study and prepare for your final SMU examination.

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  1. BCA
  2. MCA
  3. BSc IT
  4. MSc IT
  5. MBA

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Course Name
        BSc IT (Bachelor of Science in Information Technology)

Subject Code      
BT0070 (Operating Systems )

Get Questions        PART - A    PART - B    PART - C

Operating Systems Syllabus.

Unit 1: Operating System
An Introduction Definition and functions of Operating System; Evolution of Operating Systems: Simple Batch Operating Systems, Multi-programmed Batched Operating Systems, Time- Sharing operating Systems, Personal Computer Operating Systems, Multi-processor Operating Systems, Distributed Systems, Real-Time Systems; Operating system structures; Layered approach; The kernel based approach; The virtual machine approach.

Unit 2 : Process Management
What is process? Process State; Process Control Block; Process Scheduling: Schedulers, Context Switch, Operation on processes: Process Creation, Process Termination. Co-operating Processes. Threads: Why Threads? ; Advantages of Threads over Multiple processes; Disadvantages of Threads over Multiple processes; Types of Threads Combined ULT/KLT Approaches.

Unit 3: CPU
Scheduling Algorithms Basic Concepts of Scheduling: CPU-I/O Burst Cycle. CPU Scheduler, Pre-emptive / non pre-emptive scheduling, Dispatcher, Scheduling Criteria; Scheduling Algorithms, First come First Served Scheduling, Shortest-Job-First Scheduling, Priority Scheduling. Round-Robin Scheduling, Multilevel Queue Scheduling, Multilevel Feedback Queue Scheduling, Multiple-Processor Scheduling, Real-Time Scheduling; Evaluation of CPU Scheduling Algorithms, Deterministic Modelling, Queuing Models, Simulations, Implementation.

Unit 4: Process Synchronization.
Inter process Communication; Basic Structure, Naming: Direct Communication; Indirect Communication, Buffering; The Critical-section problem:TwoProcessSolution:Algorithm1, Algorithm2, Algorithm3; Multiple Process Solutions; Semaphores; Monitors; Hardware Assistance.

Unit 5: Introduction to Deadlocks
System Model: Deadlock Characterization: Necessary Conditions for Deadlock; Resource-Allocation Graph; Deadlock Handling; Deadlock Prevention; Deadlock Avoidance; Safe State; Resource-Allocation Graph Algorithm; Banker’s Algorithm; Safety Algorithm; Resource Request Algorithm. Deadlock Detection; Single Instance of a Resource; Multiple Instances of a Resource; Recovery from Deadlock.

Unit 6: Memory Management
Logical versus Physical Address Space Swapping; Contiguous Allocation; Single partition Allocation; Multiple Partition Allocation: Fragmentation; Paging: Concept of paging; Page Table Implementation; Segmentation; Concept of Segmentation; Segmentation Hardware; External Fragmentation.

Unit 7: Virtual Memory
Need for Virtual Memory Technique; Demand Paging; Page Replacement; Page Replacement Algorithms; FIFO Page Replacement Algorithm; Optimal Algorithm; LRU page Replacement Algorithm. Thrashing; Causes for Thrashing; Working Set Model; Page Fault Frequency.

Unit 8: File System Interface and Implementation
Concept of a File Attributes of a File; Operations on Files; Types of Files; Structure of File; File Access Methods: Sequential Access, Direct Access, Indexed Sequential Access. Directory Structure: Single Level Directory, Two Level Directory; Tree Structured Directories; Allocation Methods: Contiguous Allocation, Linked Allocation, Indexed Allocation; Performance Comparison. Free Space Management ;Bit Vector; Linked List; Grouping; Counting ;Directory Implementation; Linear List Hash Table.

Unit 9: Operating Systems in Distributed Processing
Characteristics of Distributed Processing; Characteristics of Parallel processing; Centralized v/s Distributed Processing; Distributed Applications; Distribution of Data; Distribution of Control; Network Operating System (NOS) Architecture; Functions of NOS; Redirection; Communication Management; File / Printer Services; Network Management software; Global Operating System (GOS); Migration; Resource Allocation / De-allocation. Remote Procedure Call (RPC); Message Passing Schemes; Types of services; RPC; Calling Procedure; Parameter Representation; Ports; Distributed File Management.

Unit 10: Security and Protection
Attacks on Security; Authentication; Browsing; Invalid Parameters; Line tapping; Improper Access Controls; Rogue Software. Computer Worms. Computer Virus; Types of Viruses; Infection Methods; Mode of Operation; Virus detection; Virus Removal; Virus Prevention. Security Design Principles; Authentication; Protection Mechanism; Encryption; Security in Distributed Environment.

Unit 11: Multiprocessor Systems
Advantages of Multiprocessors; Multiprocessor classification; Multiprocessor Interconnections; Bus-Oriented Systems; Crossbar-Connected Systems; Hyper cubes; Multistage switch-based Systems. Types of Multi-processor operating Systems; Separate supervisors; Master / slave; Symmetric. Multiprocessor Operating System functions and requirements; Operating System design and implementation issues; Process Management and scheduling; Memory Management.

  Get Questions        PART - A    PART - B    PART - C

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