MU Question Banks for IT Semester 4 - AT, CNND, COA and OS. Summer exams 2025
Keywords = Marks — Even if you write less, using textbook keywords gets you partial/full credit. IMPs for AT 1. Write a short note on Right Linear and Left Linear Grammars. 2. Eva…
These questions have been filtered by reviewing recurring question patterns across recent university examinations. Focus on understanding the fundamental definitions, block diagrams, and mathematical formulations before diving into optional modules.
Always draw clean labelled diagrams to secure 40% of standard question weightage.
Write answers in structured bullet points rather than dense paragraphs for fast evaluation.
Explicitly write given data, formula, and units to maximize partial credit in numericals.
Keywords = Marks — Even if you write less, using textbook keywords gets you partial/full credit.
IMPs for AT
- Write a short note on Right Linear and Left Linear Grammars.
- Evaluate given context-free grammar and Identify whether it is ambiguous or not. S→ a|Sa|bSS|SSb|SbS
- Construct DFA for given regular expression (a+b)aba(a+b)
- Differentiate between Moore machine and mealy machine.
- Distinguish between NFA and DFA
- Explain Chomsky's Hierarchy with a neat diagram.
- What are the limitations of PDA?
- Differentiate between PDA and CFG.
- Give a formal definition of Turing Machine (TM). Design a TM that performs the addition of two unary numbers.
IMPS FOR CNND
- Explain TCP/IP Reference Model.
- Compare OSI & TCP/IP.
- Explain Sliding Window Protocol.
- Explain Go-Back-N protocol.
- Explain packet switching.
- What do you mean by Routing? Explain any routing protocol detail.
- What is Network Address translation? Explain.
- Explain IPv6 Header with a diagram.
- Explain the difference between static and dynamic routing. Explain distance vector routing.
- Compare TCP and UDP.
IMP topics for CNND:
- Languages: Alphabets and Strings.
- Regular Languages
- Closure properties
IMPS FOR COA
- Explain multiplexer and demultiplexer.
- Compare SR and JK flip flop.
- Explain half adder with diagram
- Explain Amdahl's Law.
- Discuss any five arithmetic instructions of 8086 with examples.
- Discuss various addressing modes of the 8086 microprocessor with examples.
- Describe Flynn's classification of parallel computing in detail
- Discuss various Pipeline Hazards with examples
- Discuss a six stage instruction pipeline with a diagram.
- Draw Flowchart of Restoring division technique and divide 13 by 5 using Restoring division technique.
IMPS FOR OS
- Explain UNIX OS kernel.
- Explain system Calls and its types.
- Differentiate between process and threads.
- Consider the following set of processes indicated as (process name, arrival time, burst time) for the following (P1,0,6), (P2,1,4), (P3,3,5), (P4,5,3). Draw the Gantt charts illustrating the execution of these processes using preemptive and non-preemptive SJF and FCFS. Calculate average turnaround time, average waiting time in each case.
- Write a short note on Disk Scheduling.
- Write a short note on Process Control Block.
- Give the explanation of necessary conditions for deadlock. Explain how a resource allocation graph determines a deadlock.
- What is semaphore and its types? How the classic synchronisation problem - Dining philosopher is solved using semaphores?
- Write a short note on Deadlock avoidance.
PRIORITY MODULES FOR OS: P1 - Module No.3 | Process Coordination P2 - Module No.4 | Memory management
How to Score 9+ Pointer in IMP topics for CNND:
University evaluators grade hundreds of papers per day. Following this systematic 4-step checklist ensures your answer sheet stands out:
Master High-Frequency Modules First
Analyze which 3 modules carry 60%+ of the total marks in Mumbai University (MU). Solve every previous year question from these modules.
Emphasize Visual Elements
Always allocate space for circuit diagrams, architecture flowcharts, state transition diagrams, or comparison tables. Evaluators award marks quickly for correct visual representations.
Write Clear Comparison Tables
For questions asking to “Differentiate between X and Y”, always construct a table with at least 5 to 6 distinct comparison parameters (e.g. Definition, Speed, Complexity, Applications).
Practice Timed Writing
Allocate 1.5 minutes per mark (e.g. maximum 15 minutes for a 10-mark question). This leaves at least 15 minutes at the end of the examination for final verification and underline key results.
Need complete solved solutions & notes?
Access chapter-wise Bh.Notes, Question Banks, and Solved Papers.
Frequently Asked Questions (FAQ)
Q: Are these important questions (IMPs) enough to prepare for IMP topics for CNND: MU exams?
Yes, these high-priority IMP questions are curated by analyzing 5+ years of university question papers, marking patterns, and syllabus module weightage. Practicing these questions thoroughly gives you strong conceptual coverage of the highest scoring topics.
Q: How can I score maximum marks in IMP topics for CNND: theory and numerical questions?
To maximize marks in university examinations: 1) Always begin with a neat, labelled diagram or flowchart where applicable. 2) Structure answers in concise bullet points with clear subheadings. 3) Write standard definitions, assumptions, and formulas. 4) For numerical problems, write given data, state formulas, show step-by-step substitution, and highlight the final answer with proper units.
Q: Where can I get complete solved notes, Bh.Papers, and syllabus question banks?
You can access complete chapter-wise notes, solved university past papers, and comprehensive study materials across all semesters and branches directly on the Brainheaters platform. Check out the Study Materials hub to get started.
Q: How are Brainheaters question banks and study materials curated?
Brainheaters materials are curated and reviewed by university subject matter experts, professors, and top-ranking alumni. Every guide is vetted to align with the latest revised university engineering syllabus.
Brainheaters Academic Verification & Quality Standards
This guide was researched and compiled by Ishita Raikar and reviewed by the Brainheaters Engineering Academic Board. All topics and questions are verified against the official university syllabus patterns for Mumbai University (MU). To report an update or suggest additional subject topics, reach out to our academic team at support@brainheaters.in.
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