Showing posts with label jntu. Show all posts
Showing posts with label jntu. Show all posts
Important Questions For Control systems ECE 3-1
control systems ECE external jntu papersUNIT 1
1. Explain the TF of armature and field controlled DC motor.
2. Problem from mechanical translational system(analogy of force- voltage and force- current)
3. Problem from signal flow graph + block diagram
Unit 2
1. Explain servomotors and its types
2. Derive the time response of underdamped and critically damped second order system for unit step input
3. Derive the expression for time domain specifications
Unit 3
1. Derive the frequency domain specifications of second order system
2. Problem from bode plot determining phase margin,gain margin ,determination of k value,gain and phase cross over frequency( any 2 )
3. Problem from polar plot (same as bode plot )
4. Explain frequency domain specifications
Unit-4
1. Explain the locatiuon of poles on s-plane for stability
2. Problems from routh Hurwitz criterion
3. Problems to determine gain and phase cross over frequency, gain and phase margin from given TF
4. Problems from root locus
Unit – 5
1. Derive the realisation of electrical network, frequency response, determination of maximum phase lag and max. Lag angle for
a) lag compensator
b) lead compensator (separate questions)
2. problems from lag compensator or lead compensator
Operating Systems Important Quetions 3-1
jntu operating systems papers- Explain the various types of computer systems.
- Explain how protection is provided for the hardware resources by the operating system.
- What are the system components of an operating system and explain them?
- What are the various process scheduling concepts?
- Explain about inter process communication.
- List five services provided by an operating system. Explain how each provides convenience to the users. Explain also in which cases it would be impossible for user level programs to provide these services.
- Explain the types of system structure in detail.
- Explain in detail about virtual machines.
9. Difference between Hard –Real time systems and Soft-RTS.
10. Describe the functions of OS and its services.
11. Explain in detail about Operating System Structures.
12. Explain the Types of System Calls in detail.
13. Explain System Programs in detail.
14. Give an overview about threads.
15. Explain in detail about the threading issues.
Unit-2
1. Write about the various CPU scheduling algorithms.
2. What is critical section problem and explain two process solutions and multiple process solutions?
3. Explain what semaphores are, their usage, implementation given to avoid busy waiting and binary semaphores.
4. Explain about critical regions and monitors
5. Consider the following set of processes, with the length of the CPU-burst time given in milliseconds:
Process Burst Time Priority
P1 10 3
P2 1 1
P3 2 3
P4 1 4
P5 5 2
The processes are assumed to have arrived in the order P1, P2, P3, P4, P5, all at time 0.
a. Draw four Gantt charts illustrating the execution of these processes using FCFS, SJF, A non preemptive priority
(a smaller priority number implies a higher priority), and RR (quantum = 1) scheduling.
b. What is the turnaround time of each process for each of the scheduling algorithms in part a?
c. What is the waiting time of each process for each of the scheduling algorithms in Part a?
d. Which of the schedules in part a results in the minimal average waiting time (over all processes)?
6. Explain briefly about Readers/Writers problem in classical synchronization implement using critical section.
7. What is the use of monitors for resource allocation?
8. What is the advantage of having different time-quantum sizes at different levels in MFQ-Multilevel Feedback Queue based scheduling.
9. Consider the following snapshot of a system:
Process Allocation Max Available
AB C D A B C D AB C D
P0 0 0 1 2 0 0 1 2 15 2 0
P1 1 0 0 0 1 7 5 0
P2 1 3 5 4 2 3 5 6
P3 0 6 3 2 0 6 5 2
P4 0 0 1 4 0 6 5 6
Answer the following questions using the banker’s algorithm:
a. What is the content of the matrix Need? Is the system in a safe state?
b. If a request from process P1 arrives for (0, 4, 2, 0), can the request be granted immediately?
10. Write detailed explanation about Multiprocessor scheduling and Real time scheduling.
11. Give a detailed description about deadlocks and its
characterization.
12. Explain about the methods used to prevent deadlocks.
13. Discuss the methods of Deadlock detection and Recovery.
Unit-3
1. Explain about contiguous memory allocation.
2. Give the basic concepts about paging.
3. Explain about the techniques for structuring the page table.
4. Explain the basic concepts of segmentation
5. Given memory partitions of 100KB, 500KB, 200KB, 300KB, and 600KB (in order),how would each of the first-fit, best –fit, worst fit algorithms place processes of 212KB,417KB,112KB, and 426KB(in order). Which algorithm makes the most efficient use of memory?
6. Explain the various page replacement strategies.
7. Consider the following page reference string:
1, 2, 3, 4, 2, 1, 5, 6, 2, 1, 2, 3, 7, 6, 3, 2, 1, 2, 3, 6.
Ø How many page faults would occur for the following replacement algorithms, assuming one, two, three, four, five, six, or seven frames? Remember all frames are initially empty, so your first unique pages will all cost one fault each.
• LRU replacement
• FIFO replacement
• Optimal replacement
8. How many page faults occur for your algorithm for the following reference string, for four page frames?
1, 2, 3, 4, 5, 3, 4, 1, 6, 7, 8, 7, 8, 9, 7, 8, 9, 5, 4, 5, 4, 2.
a. What is the minimum number of page faults for an optimal page-replacement strategy for the reference string with four page frames?
9. What is meant by Virtual memory. Give some major benefits which are make applicable.
10. Discuss briefly about Paging with Segmentation in 32-bit architecture Intel80x86 Structure analysis.
11. Discuss about
a) Swapping b) Paging c) Segmentation d) TLB hit/miss
Unit-4
1. What are files and explain the access methods for files?
2. Explain the schemes for defining the logical structure of a directory.
3. Write notes about the protection strategies provided for files
4. Explain in detail about Linked allocation.
5. Explain in detail about Indexed allocation.
6. Write notes about Log-Structured file system.
7. What are the directory implementation techniques available? Explain in detail.
8. Explain in detail about various ways of free space management.
9. Explain in detail about Continuous allocation.
10. Write notes about file system implementation.
11. Explain in detail about file system mounting.
Unit-5
1. Write about the kernel I/O subsystem.
2. Explain the various disk scheduling techniques
3. Write notes about disk management.
4. Suppose that a disk drive has 5000 cylinders, numbered 0 to 4999. The drive is currently serving a request at cylinder 143, and the previous request was at cylinder 125. The queue of pending requests, in FIFO order, is
86, 1470, 913, 1774, 948, 1509, 1022, 1750, 130
Starting from the current head position, what is the total distance ((in cylinders) that the disk arm moves to satisfy all the pending requests, for each of the following disk scheduling
a. FCFS
b. SSTF
c. SCAN
d. LOOK
e. C-SCAN
5. What is meant by RAID levels? Which level is used for what purpose?
6. Analyze Disk arm movement reduced when/which one is effective for given
Queue=87, 170, 40, 150, 36, 72, 66, 15
Starting point of current head is 60.
7. Explain in detail about stable storage and tertiary storage implementation.
8. Write notes on disk attachment.
9. Explain about swap-space management.
10. How does DMA increase system concurrency? How does it complicate the hardware design?
11. Write notes on STREAMS.
software engineering important Quetions Unit Wise
cse external jntu notes papers semister software engineeringSoftware Engineering
Btech StuFFs
Unit-1
1. Explain the evolving role of software?
2 .Define software and explain the various characteristics of software?
3 .Describe “Software myth”? Discuss on various types of software
myths and the true aspects of these myths?
4 Explain software Engineering? Explain the software engineering
layers?
5 Explain in detail the capability Maturity Model Integration (CMMI)?
6
Describe with the help of the diagram discuss in detail waterfall
model. Give certain reasons for its failure?
7 Explain briefly on (a) the incremental model (b) The RAD Model?
8) Explain the Spiral model in detail?
9
Describe With the help of the diagram explain the concurrent
development model?
10 Explain unified process? Elaborate on the unified process work
products?
11 Explain specialized process models?
12 Explain different software applications?
13 Explain the paradigms do you think would be most effective? Why?
14 Explain product and process are related?
15 Explain personal and team process models?
Unit-2
Write short notes on user requirements. What are requirements?
2 Compare functional requirements with nonfunctional requirements?
3 Discuss system requirements in a detail manner?
4 Explain requirement engineering process?
5 Discuss briefly how requirement validation is done?
6
Discuss your knowledge of how an ATM is used; develop a set of
use-cases that could serve as a basis for understanding the
requirements for an ATM system?
Explain SRS document and explain along with its contents?
15 Explain interface specification in detail?
16 Discuss how requirements are felicitated and validated in software
project?
17 Discuss how feasibility studies are important in requirement
engineering process?
18 Demonstrate class hierarchy for library by using interface
specification?
19 Explain inheritance model?
20 Explain state machine model with a suitable example?
Unit-3
Explain a two level process? Why should system design be finished
before the detailed design, rather starting the detailed design after the
requirements specification? Explain with the help of a suitable
example
2
Discuss briefly the following fundamental concepts of software
design:
i) Abstraction
ii) Modularity
iii) Information hiding
3
Explain briefly the following:
i) Coupling between the modules,
ii) The internal Cohesion of a module
4
Discuss the fundamental principles of structured design. Write notes
on transform analysis?
5 Explain software architecture in a detail manner?
Elaborate modeling component level design?
18 Describe mapping data flow into software architecture?
19 Explain the guide lines of component level design?
20 Describe the way of conducting a component level design?
Unit-4
Explain about the importance of test strategies for conventional
software?
2 Discuss black box testing in a detailed view?
3 Compare black box testing with white box testing?
4 Compare validation testing and system testing?
5 Discuss software quality factors? Discuss their relative importance?
6 Discuss an overview of quality metrics?
7
7.Explain should we perform the Validation test – the software
developer or the software user? Justify your answer?
8 Explain about Product metrics?
9.Demonstrate art of debugging
10 Dis cuss a framework for product metrics
11 Demonstrate metrics for analysis model
12 List the metrics for the design model
13. Describe metrics for source code and for testing
UNIT - V
Explain about software risks? Knowledge 8
2
Elaborate the concepts of Risk management Reactive vs Proactive
Risk strategies?
3 Explain about RMMM Plan?
4 Explain about Quality concepts?
5 Explain software quality assurance?
6 Explain about formal technical reviews?
7 Explain in detail ISO 9000 quality standards?
8 Discuss risk refinement?
9 Compare reactive with proactive risk strategies?
10 Discuss software reliability? Understand 9
11 Briefly explain about formal approaches to SQA?
12 Demonstrate statistical SQA?
AWP Important quetions and Concepts Must Read
AWP ECE jntu notes papers semisterUNIT I: ANTENNA FUNDAMENTALS
Radiation pattern
Beam solid angle
Directivity
Gain
Polarization
Reciprocity
Effective aperture
Vector effective length
Antenna temperature.
UNIT II WIRE ANTENNAS AND ANTENNA ARRAYS
Short dipole
Radiation resistance and Directivity
Small loop antennas
Linear Array and Pattern Multiplication
Two-element Array
UNIT III APERTURE ANTENNAS
Uniqueness theorem
Field equivalence principle
Duality principle
Slot antenna
Horn Antenna
Reflector Antenna-Flat reflector
Lens Antenna.
UNIT IV SPECIAL ANTENNAS AND ANTENNA MEASUREMENTS
Rhombic Antenna
Yagi-Uda Antenna
Helical Antenna
Biconical Antenna
Log periodic Dipole Array
Radiation Pattern measurement
Gain and Directivity Measurements
UNIT V RADIO WAVE PROPAGATION
Ground Wave Propagation
Free-space Propagation
Structure of ionosphere
Skip distance
Virtual height
MUF
Effects of earth’s magnetic fields,
Faraday rotation,
Whistlers.
VLSI DESIGN
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