CS6403 Important questions Software Engineering

CS6403 Important questions Software Engineering Regulation 2013 Anna University free download. Software Engineering Important questions pdf free download.

Sample CS6403 Important questions:

1. What is software engineering?

Software engineering is a discipline in which theories, methods and tools are applied to develop professional software.

2. What is Software?

Software is nothing but a collection of computer programs that are related documents that are indented to provide desired features, functionalities and better performance.

3. What are the characteristics of the software?

• Software is engineered, not manufactured.
• Software does not wear out.
• Most software is custom built rather than being assembled from components.

4. What are the various categories of software?

• System software
• Application software
• Engineering/Scientific software
• Embedded software
• Web Applications
• Artificial Intelligence software

5. What are the challenges in software?

• Copying with legacy systems.
• Heterogeneity challenge
• Delivery times challenge

6. Define software process.

Software process is defined as the structured set of activities that are required to develop the software system.

7. What are the fundamental activities of a software process?

• Specification
• Design and implementation
• Validation

8. What are the merits of incremental model?

i. The incremental model can be adopted when tere are less number of people involved in the project.
ii. Technical risks can be managed with each increment.
iii. For a very small time span,at least core product can be delivered to the customer.

9. List the task regions in the Spiral model.

? Customer communication – In this region it is suggested to establish customer communication.

? Planning – All planning activities are carried out in order to define resources timeline and other
project related activities.

? Risk analysis – The tasks required to calculate technical and management risks.

? Engineering – In this the task region,tasks required to build one or more representations of applications are carried out.

Subject Name	Software Engineering
Subject code	CS6403
Regulation	2013

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CS6402 Important Questions Design and Analysis of Algorithms

CS6402 Important Questions Design and Analysis of Algorithms Regulation 2013 Anna University free download. Design and Analysis of Algorithms Important Questions pdf free download.

Sample CS6402 Important Questions:

1. Define Algorithm.
An algorithm is a sequence of unambiguous instructions for solving a problem in a finite amount of time.

2.Write a short note on Algorithm Design and Analysis of Process.

Understand the problem
Decide onComputational DeviceExact Vs Approximate Algorithms
Algorithm Design Techniques
Design an algorithms
Prove Correctness
Analyze the Algori thm
Code the Algorithm

3. What are the 2 kinds of Algorithm Efficiency Time Efficiency-How fast your algorithm runs?

Space Efficiency-How much extra memory your algorithm needs?

4. How can you specify Algorithms?

Algorithms can be specified natural language or pseudo code.

5. What is Pseudo Code?

Pseudo Code is a mixture of Natural Language and Programming Language Constructs such as functions, loops, decision making statements..etc

6. What are the Important Problem Types?

• Sorting
• Searching
• String Processing
• Graph Problem
• Combinatorial Problem
• Geometric Problem
• Numerical Problem

7.How can you Classify Algorithms

Among several ways to classify algorithms, the 2 principal alternatives are
• To group algorithms according to types of problem they solve com
• To group algorithms according to underlying design techniques they are based upon

8. What is Sorting Problem?

Sorting algorithm is rearrange the items of given list descending/ascending order. Sorting
algorithms classified into
• Stable Sorting Algorithm
• Non-Stable Algorithm

Subject Name	Design and Analysis of Algorithms
Subject code	CS6402
Regulation	2013

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CS6401 Important Questions Operating Systems

CS6401 Important Questions Operating Systems Regulation 2013 Anna University free download. Operating Systems Important Questions pdf free download.

Sample CS6401 important questions:

1. What is meant by Mainframe Systems?

Mainframe systems are the first computers developed to tackle many commercial and scientific applications. These systems are developed from the batch systems and then multiprogramming system and finally time sharing systems.

2. What is meant by Batch Systems?

In this, operators batched together jobs with similar needs and ran through the computer as a group .The operators would sort programs into batches with similar requirements and as system become available, it would run each batch.

3. What is meant by Multiprogramming?

Several users simultaneously compete for system resources (i.e) the job currently waiting for I/O will yield the CPU to another job which is ready to do calculations, if another job is waiting. Thus it increases CPU utilization and system throughput.

4. What is meant by Time-sharing Systems?

Time Sharing is a logical extension of multiprogramming .Here, CPU executes multiple jobs by switching among them, but the switches occur so frequently that the users can interact with each program while it is running.

5. What are the Components of a Computer System?

• Application Programs
• System Program
• Operating System
• Computer Hardware

6. What are the advantages of Multiprogramming?

• Increased System Throughput
• Increased CPU utilization

7. What are Multiprocessor System?

Multiprocessor systems have systems more than one processor for communication, sharing the computer bus, the memory, clock & peripheral devices.

8. What are the advantages of multiprocessors?

• Increased throughput
• Economy of scale
• Increased reliability

Subject Name	Operating Systems
Subject code	CS6401
Regulation	2013

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CS6551 Important questions Computer Networks

CS6551 Important questions Computer Networks Regulation 2013 Anna University free download. Computer Networks Important questions free pdf download.

Sample CS6551 Important questions:

1.What are the three criteria necessary for an effective and efficient network?

The most important criteria are performance, reliability and security. Performance of the network depends on number of users, type of transmission medium,the capabilities of the connected h/w and the efficiency of the s/w.Reliability is measured by frequency of failure, the time it takes a link to recover from the failure and the network’s robustness in a catastrophe.Security issues include protecting data from unauthorized access and viruses.

2.Group the OSI layers by function.

The seven layers of the OSI model belonging to three subgroups.network support layers: Consisting of Physical, data link and network layers and theydeal with the physical aspects of moving data from one device to another.User support layers: Consists of Session, presentation and application layers and they allow interoperability among unrelated software systems.The transport layer ensures end-to-end reliable data transmission

3. What are the features provided by layering?

It decomposes the problem of building a network into more manageable components.

Rather than implementing a monolithic piece of software that does everything implement several
layers, each of which solves one part of theproblem.

It provides more modular design. To add some new service, it is enough to modify the functionality at one layer, reusing the functions provided at all the other layers.

4. What are the two interfaces provided by protocols?

Service interface
Peer interface
Service interface-defines the operations that local objects can perform on the protocol.
Peer interface-defines the form and meaning of messages exchanged between protocol peers to implement the communication service.

 

Subject Name	Computer Networks
Subject code	CS6551
Regulation	2013

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Ma6453 Important questions PROBABILITY AND QUEUEING THEORY

Ma6453 Important questions PROBABILITY AND QUEUEING THEORY Regulation 2013 Anna University free download. PROBABILITY AND QUEUEING THEORY Important questions free download.

Sample Ma6453 Important questions:

1. Find the mean and variance of the following distributions:
Binomial, Poisson( Refer B: page no:179,183)

2. Find the mean and variance of the following distributions :
Geometric and Exponential(Refer B : page no:185,212)

3. Prove that Poisson distribution is the limiting form of
Binomial distribution. (Refer B: page no : 181)

4. Each of the 6 tubes of a radio set has a life length (in yrs) which may be considered as a RV that follows a weibull distribution with parameters α = 25 and β = 2. If these tubes function independently of one another, what is the probability that no tube will have to be replaced during the first 2 months of service? (Refer C: page no : 2.82)

5.It is known that the probability of an item produced by a certain
machine will be defective is 0.05. If the produced items are sent to the market in packets of 20, fine the no. of packets containing at least, exactly and atmost 2 defective items in a consignment of 1000 packets using (i) Binomial distribution (ii) Poisson approximation to binomial distribution. (Refer C: page no : 2.28)

6. The daily consumption of milk in excess of 20,000 gallons is
approximately exponentially distributed with θ = 3000. The city has a
daily stock of 35,000 gallons. What is the probability that of two days
selected at random, the stock is insufficient for both days.
(Refer C: page no : 2.74)

Subject Name	PROBABILITY AND QUEUEING THEORY
Subject code	MA6453
Regulation	2013

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EC6405 important questions Control System Engineering

EC6405 important questions Control System Engineering Regulation 2013 Anna University free download. Control System Engineering important questions free download.

Sample EC6405 important questions

1. What is control system?
A system consists of a number of components connected together to perform a specific function. In a system when the output quantity is controlled by varying the input quantity then the system is called control system.

2. What are the two major types of control system?
The two major types of control system are open loop and closed loop system.

3. Define open loop control system.
The control system in which the output quantity has no effect upon the input quantity are called open loop control system. This means that the output is not feedback to the input for correction.

4. Define closed loop control system.
The control system in which the output has an effect upon the input quantity so as to maintain the desired output value are called closed loop control system.

5. What are the components of feedback control system?
The components of feedback control system are plant , feedback path elements, error detector and controller.

6. Define transfer function.
The T.F of a system is defined as the ratio of the Laplace transform of output to Laplace transform of input with zero initial conditions.

7. What are the basic elements used for modeling mechanical translational system?
Mass, spring and dashpot.

8. What are the basic elements used for modeling mechanical rotational system?
Moment of inertia J,f dashpot with rotational frictional coefficient B and torsion spring with stiffness K

9. Name two types of electrical analogous for mechanical system.
The two types of analogies for the mechanical system are force voltage and force current analogy.

 

Subject Name	Control System Engineering
Subject Code	EC6405
Regulation	2013

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EC6404 Important Questions Linear Integrated Circuits

EC6404 Important Questions Linear Integrated Circuits Regulation 2013 Anna University free download. Linear Integrated Circuits Important Questions free download.

Sample EC6404 Important Questions:

1) Mention the advantages of integrated circuits over discrete circuits.

2) What is current mirror? Define input offset voltage.

3) Define an operational amplifier & draw the pin configuration of IC741.

4) What are the assumptions made from ideal op-amp characteristics?

5) Mention the characteristics of an ideal op-amp.

6) What happens when the common terminal of V+ and V- sources is not grounded?

7) Define input offset current. State the reasons for the offset currents at the input of the op-amp.

8) Define CMRR and SVRR of an op-amp.

9) Justify the reasons for using current sources in integrated circuits. What are the applications of current sources?

10) What is the advantage of widlar current source over constant current source?

11) Mention the advantages of Wilson current source.

12) What are the limitations in a temperature compensated zener-reference source?

13) What do you mean by a band-gap referenced biasing circuit?

14) In practical op-amps, what is the effect of high frequency on its performance?

15) What is the need for frequency compensation in practical op-amps? Mention the frequency compensation methods.

16) What are the merits and demerits of Dominant-pole compensation?

17) Define slew rate. What causes slew rate?

18) Why IC 741 is not used for high frequency applications?

19) In response to a square wave input, the output of an op-amp changed from -3V to +3V over a time interval of 0.25μs. Determine the slew rate.

20) What are the methods to improve slew rate?

Subject Name	Linear Integrated Circuits
Subject Code	EC6404
Regulation	2013

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EC6403 Important questions Electromagnetic Fields

EC6403 Important questions Electromagnetic Fields Regulation 2013 Anna University free download. Electromagnetic Fields Important questions free download.

Sample EC6403 Important questions:

1. Define scalar and vector field? Give its two examples.

2. Define base (unit) vector? What is its function while representing a function?

3. Define rectangle, cylindrical & spherical coordinates.

4. Define line, surface & volume charge density.

5. Define Curl, Divergence & Gradient with mathematical expression.

6. State Stroke‟s theorem & Write mathematical expression for Stroke‟s theorem.

7. State Divergence theorem & Write mathematical expression for Divergence theorem.

8. Convert the point P(3, 4, 5) from the cartesian to spherical coordinates. Prove that curl grad Φ = 0.

9. Determine the gradient of the scalar filed F = 5r2+r Sinθ. Show that vector H = 3y4z2ax+4x3z2ay+3x2y2az is solenoidal.

10. State Coulomb‟s law (or) State Coulomb‟s law in vector form. What are the features of Coulomb‟s law?

11. In XY plane, Q1=100 μC at (2,3)m, experiences a repulsive force of 7.5 N because of Q2 at (10,6)m. Find Q2.

12. State the principle of superposition of fields. A uniform surface charge of σ=2μc/m2 is situated at z=2 plane. What is the value of D at P(1,1,1)m.

13. Define electric field intensity. Mention any two sources of electromagnetic field.

14. State Gauss law. What is the use of Gauss‟s law?

15. State Divergence theorem. Show that .E=0 in the case of a point charge.

16. Define electric flux and electric flux density? Write relation between E & D.

17. Define potential. Distinguish potential & potential difference.

18. Define electric scalar potential. Write down relation between potential & electric field.

19. What is an electric dipole? Write down the potential due to an electric dipole.

20. State nature of conservative field. A point charge +2 nC is located at origin. What is the value of potential at P(1,0,0)m.

Subject Name	Electromagnetic Fields
Subject Code	EC6403
Regulation	2013

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