smu bca 4 sem assignment Spring 2018 (july/aug 2018 exam)

Get fully solved assignment. Buy online from website

www.smuassignment.in

online store

or

plz drop a mail with your sub code

computeroperator4@gmail.com

we will revert you within 2-3 hour or immediate

Charges rs 125/subject

If urgent then call us on 08791490301

ASSIGNMENT DRIVE SPRING 2018

PROGRAM Bachelor of Computer Application - BCA

SEMESTER 4

SUBJECT CODE & NAME BCA411 – COMPUTER NETWORKING

Set -1

Q 1 Explain the tasks of different layers of OSI reference model? 10        

Answer:-

The tasks of different layers of OSI reference model are:

1. Physical Layer: This layer coordinates the functions required to carry a bit stream over a physical medium. It deals with the electrical and mechanical specifications of the interface and transmission medium. It defines the procedures and functions that physical devices and interfaces have to

Q2 What is Attenuation Distortion? 10     

Answer:-

Attenuation distortion It is the loss of energy as the signal propagates outward. The amount of energy depends on the frequency. If the attenuation is too much, the receiver may not be able to detect the

Q3 Write a note on Slotted or Impure ALOHA. 10         

Answer:-

Slotted or Impure ALOHA:

An improvement to the original Aloha protocol was Slotted Aloha. It is in 1972 Roberts published a method to double the throughput of a pure ALOHA by using discrete timeslots. His proposal

Set -2

Q 1 Write the working principle of Stop-and-Wait ARQ. 10 

Answer:-

This protocol adds a simple error control mechanism to the stop-and-wait protocol. To detect and correct corrupted frames, we need to add redundancy bits to our data frame. When the frame arrives at the receiver site, it is checked and if it is corrupted, it is silently discarded. The detection of errors in this protocol is manifested by the silence of the receiver. Lost frames are more

Q2 What is Fragmentation in IPV6? 10     

Answer:-

In IPV4, if a router receives a packet that is too large for the network segment to which the packet is being forwarded and fragmentation of the packet is allowed, IPV4 on the router fragments the original packet into smaller packets that fit on the forwarding network segment. In IPV6, only the

Q3 How SMTP works? 10     

Answer:-

SMTP is based on end-to-end delivery: An SMTP client contacts the destination host's SMTP server directly, on well-known port 25, to deliver the mail. It keeps the mail item being transmitted until it has been successfully copied to the recipient's SMTP. This is different from the store-and-

Get fully solved assignment. Buy online from website

www.smuassignment.in

online store

or

plz drop a mail with your sub code

computeroperator4@gmail.com

we will revert you within 2-3 hour or immediate

Charges rs 125/subject

If urgent then call us on 08791490301

Get fully solved assignment. Buy online from website

www.smuassignment.in

online store

or

plz drop a mail with your sub code

computeroperator4@gmail.com

we will revert you within 2-3 hour or immediate

Charges rs 125/subject

If urgent then call us on 08791490301

ASSIGNMENT   DRIVE SPRING 2018

PROGRAM Bachelor of Computer Application – BCA

SEMESTER 4

SUBJECT CODE & NAME BCA412 – Java Programming

Set -1

Q 1 What are the rules for naming variables in JAVA? 10 

Answer:-

A program refers to a variable using its name. Certain rules and conventions govern the naming of

Q2 What is Operator Precedence in JAVA? 10 

Answer:-

When more than one operator is used in an expression, Java will use operator precedence rule to determine the order in which the operators will be evaluated. For example, consider the following

Q3 What is abstract class? Explain. 10 

Answer:-

An abstract class defines common properties and behaviors of other classes. An abstract class is used as a base class to derive specific classes of the same kind. It defines properties common to the classes derived from it. The abstract keyword is used to declare such a class. The classes declared

Set -2

 Q1 What are the use of Readers and Writers class in JAVA? 10     

Answer:-

The subclasses of the input and output streams read and write data in the form of bytes. The Reader and Writer classes are abstract classes that support the reading and writing of Unicode character streams. Unicode is used to represents data such that each character is represented by 16 bits. Byte streams work on eight bits of data. These 16-bit version streams are called Reader and Writer. The

Q2 What are use of Adapter Classes in JAVA? 10 

Answer:-

The Java programming language provides adapter classes that implement the corresponding listener interfaces

Q3 Write a note on Remote Method Invocation. 10     

Answer:-

Distributed applications are applications that execute across multiple host systems. Objects executing on one host system can invoke the methods of objects on remote hosts. The remotely invoked methods

Get fully solved assignment. Buy online from website

www.smuassignment.in

online store

or

plz drop a mail with your sub code

computeroperator4@gmail.com

we will revert you within 2-3 hour or immediate

Charges rs 125/subject

If urgent then call us on 08791490301

Get fully solved assignment. Buy online from website

www.smuassignment.in

online store

or

plz drop a mail with your sub code

computeroperator4@gmail.com

we will revert you within 2-3 hour or immediate

Charges rs 125/subject

If urgent then call us on 08791490301

ASSIGNMENT DRIVE SPRING 2018

PROGRAM Bachelor of Computer Application – BCA

SEMESTER 4

SUBJECT CODE & NAME BCA413 –SYSTEM SOFTWARE

Set -1

Q1 What are the Phases of a language processor? 10

Answer:-

Analysis phase:-

A language processor consists of two distinct phases. They are analysis phase and synthesis phase.

To determine relevant information concerning a statement in the source program, the analysis phase uses each component of the source language specification. Thus, analysis of the source statement consists of lexical,

Q2 What is single pass assembler? 10

Answer:-

In single pass assemblers, the entire translation of assembly language program into object program is done in only one pass. The source program is read only once. These are also called as ‘one pass

Q3 Write and explain the algorithm for pass 1 of a linking loader. 10

 Answer:-

During Pass 1, the loader is concerned only with Header and Define record types in the control sections.  Algorithm for Pass 1 of a Linking loader:

Set -2

Q1 What is the purpose of Lexical Analyzer? 10

Answer:-

The lexical analyzer is the interface between the source program and the compiler. The lexical analyzer reads the source program one character at a time, carving the source program into a sequence of atomic

Q2 What are the different types of editor? 10

Answer:-

Depending upon the types of characters to be edited, editors can be broadly classified as:

i) Text Editors and 

ii) Graphical Editor

.

Q3 Write a note on UPnP architecture. 10

Answer:-

The UPnP architecture is designed to offer pervasive peer-to-peer network connectivity of networked devices such as Personal

Get fully solved assignment. Buy online from website

www.smuassignment.in

online store

or

plz drop a mail with your sub code

computeroperator4@gmail.com

we will revert you within 2-3 hour or immediate

Charges rs 125/subject

If urgent then call us on 08791490301

Get fully solved assignment. Buy online from website

www.smuassignment.in

online store

or

plz drop a mail with your sub code

computeroperator4@gmail.com

we will revert you within 2-3 hour or immediate

Charges rs 125/subject

If urgent then call us on 08791490301

ASSIGNMENT DRIVE SPRING 2018

PROGRAM Bachelor of Computer Application – BCA

SEMESTER 4

SUBJECT CODE & NAME BCA 414 – PRINCIPLES OF FINANCIAL ACCOUNTING AND MANAGEMENT

Set -1

Q1 What are the different types of Journals? 10

Answer:-

The different types of Journals are:

a) Purchases Day Book

 It records credit purchase of raw materials (in case of a manufacturing concern), or of goods traded (in case of trading concern).

b) Sales Day Book

 It records credit

Q2 What are the activities of Finance Manager? 10

Answer:-

The activities of a Finance Manager can include the following:

®    Investment or long term asset mix structure

®    Financing or

Q3 What are the concepts of Working Capita? Explain. 10

 Answer:-

There are two concepts of working capita – gross and net.

Gross working capital refers to the firm’s investment in total current assets. 

Net working capital

Set -2

Q1 What are the significant factors affecting the composition of working capital? 10

Answer:-

The significant factors affecting the composition of working capital are:-

Nature of Business: Working capital requirements are basically influenced by the nature of business. Trading organizations

Q2 Explain the steps in preparation of fund flow statement. 10

Answer:-

Steps in preparation of fund flow statement:

1. Preparation of schedule changes in working capital (taking current items only).

Q3 What are the characteristics of fixed and variable cost? 5+5

Answer:-

Fixed Cost: 

It is that portion of

Get fully solved assignment. Buy online from website

www.smuassignment.in

online store

or

plz drop a mail with your sub code

computeroperator4@gmail.com

we will revert you within 2-3 hour or immediate

Charges rs 125/subject

If urgent then call us on 08791490301

smu bca 3 sem assignment Spring 2018 (july/aug 2018 exam)

Get fully solved assignment. Buy online from website

www.smuassignment.in

online store

or

plz drop a mail with your sub code

computeroperator4@gmail.com

we will revert you within 2-3 hour or immediate

Charges rs 125/subject

if urgent then call us on 08791490301, 08273413412

Spring 2018 ASS IGNMENT

PROGRAM BCA (REVISED FALL 2012)

SEMESTER 3

SUBJECT CODE &

NAME

BCA311 -COMPUTER ORIENTED NUMERICAL METHODS

CREDIT 4

BK ID

B1643

Q.1. Find a real root of the transcendental equation cos x-3x+1=0,  correct to four decimal places using iteration method.

Solution.

Let  f(x) = cos x – 3x + 1.

Q.2. Find the Taylors Series for f(x)=x³-10x²+6 about x₀=3

Solution.

We know that Taylor's series expansion of function at point x₀ is

Q.3. Solve the equations

2x + 3y + z = 9

x + 2y + 3z = 6

3x + y + 2z = 8

by LU decomposition method.

Solution.

  We have,

Q.4. Fit a second degree parabola y = a + bx + cx²    in the least square method for the following data and hence estimate y at  x = 6.

X	1	2	3	4	5
Y	10	12	13	16	19

Solution.

Let us choose, X=x-3, we have y'= (∑y)/n =70/5=14

and  let  Y  =  y – y' 

Q.5. The population of a certain town is shown in the following table

Year X	1931	1941	1951	1961	1971
Population Y	40.62	60.80	79.95	103.56	132.65

Find the rate of growth of the population in 1961.

Solution.

Here h = 10.  Since the rate of growth of population is dy/dx, we have to find dy/dx at x= 1961, which lies

Q.6. Solve of 𝑦_𝑛+2- 2 𝐶𝑜𝑠 𝛼 𝑦_𝑛+1+ 𝑦_𝑛= 𝐶𝑜𝑠 𝛼𝑛.

Solution.

The given difference equation can be written as

Get fully solved assignment. Buy online from website

www.smuassignment.in

online store

or

plz drop a mail with your sub code

computeroperator4@gmail.com

we will revert you within 2-3 hour or immediate

Charges rs 125/subject

if urgent then call us on 08791490301, 08273413412

Get fully solved assignment. Buy online from website

www.smuassignment.in

online store

or

plz drop a mail with your sub code

computeroperator4@gmail.com

we will revert you within 2-3 hour or immediate

Charges rs 125/subject

if urgent then call us on 08791490301, 08273413412

PROGRAM - BCA (Revised Fall 2012)

SEMESTER - 3

SUBJECT CODE & NAME

BCA312 – Data Base Management System(DBMS)

CREDIT - 4

BK ID - B1479

MAX. MARKS – 60

SET 1

Q1. List and explain the important responsibilities of database manager. [10]

Ans: Important responsibilities of database manager: important responsibilities of Database manager:

·         Interaction with file manager: The raw data is stored on the disk using the file system which is usually provided by a conventional operating system. The database manager translates the various DML statements into low-level file system commands. Thus the database manager is responsible for the actual

Q2. What is a table in relational data model? List the properties of relational tables. [10]

Ans: Relational Data Model: The relational model today, is the primary data model for commercial dataprocessing applications. It has attained its primary position because of its

simplicity, which eases the job of the programmer, as compared to earlier data models such as the network model or the hierarchical

Q3. What is data independence? Briefly explain. [10]

Ans: Data Independence: Data independence is usually considered from two points of view: physical data independence and logical data independence. Physical data independence allows changes in the physical storage devices or organization of the files to be made without requiring changes in the conceptual view or any of the external views and hence in the application programs using the database. Thus, the files may migrate from one type of physical media to another or the file structure may change without any need

Set2

Q1. Explain the Sequential File Organization with the help of diagrams. [10]

Ans: Sequential File Organization: A sequential file is designed for efficient processing of records in sorted order based on some search-key. A search key is any attribute or set of attributes; it need not be the primary key, or even a superkey. To permit fast retrieval of records in search-key order, we chain together records by pointers. The pointer in each record points to the next record in search-key order. Furthermore, to minimize the number of block accesses in sequential file processing, we store records physically in search-key

Q2. What is view? List its advantages. [4+6]= 10

Ans: Views: A view is a virtual table which does not actually exist. It is made up of a query on other tables in the database. It could include only certain columns or rows from a table or from many tables. A view which restricts the user to certain rows is called a horizontal view, and a vertical view restricts the user to certain columns. You

Get fully solved assignment. Buy online from website

www.smuassignment.in

online store

or

plz drop a mail with your sub code

computeroperator4@gmail.com

we will revert you within 2-3 hour or immediate

Charges rs 125/subject

if urgent then call us on 08791490301, 08273413412

Get fully solved assignment. Buy online from website

www.smuassignment.in

online store

or

plz drop a mail with your sub code

computeroperator4@gmail.com

we will revert you within 2-3 hour or immediate

Charges rs 125/subject

if urgent then call us on 08791490301, 08273413412

PROGRAM - BCA(REVISED FALL 2012)

SEMESTER - 3

SUBJECT CODE & NAME

BCA313 -UNDERSTANDING PC & TROUBLE SHOOTING

CREDIT - 4

BK ID - B1416

MAX. MARKS – 60

SET 1

Q1. What is POST? What are the various steps performed by the POST to check for resource availability? [2+8] = 10

Ans: Power-On-Self-Test (POST): Power-On-Self-Test is a routine that is run to ensure that all the components and functions of the computer are working correctly to start the computer successfully. The POST only checks the system for availability of resources; however, POST also manages the initialization of computer system

Q2. How do you to take decision on whether to replace or repair the Motherboard? Explain [10]

Ans: Take decision on whether to replace or repair the Motherboard: When any key component of the motherboard fails or shows problem in its working you will be faced with the question of either replacing that

Q3. How do you rectify the BUS errors? List out points one should consider while connecting Bus to the various components. [4+6] =10

Ans: rectify the Bus errors:

·         You can use the multi-meter to check the voltage level in the Bus. Irrespective of low voltage or standard Bus you have to find the -12 volt dc and +5 volt dc. You should ensure that a low voltage Bus should have +3.3 Volt dc. Otherwise, you need to conclude that there is fault in the Bus and need

SET 2

Q1. Write the instructions one should follow while installing the new Motherboard. [10]

Ans: Installing the new motherboard: Now your system is ready for installing the new motherboard. A little effort is required to see that the motherboard fit inside the system and work properly. You must follow the instructions given below to place your motherboard inside the system. Place the motherboard gently inside the system and

Q2. Discuss any five guidelines that we need to follow while troubleshooting the hardware problem. [10]

Ans: Troubleshooting: Usually USB problems are not severe. But still there are few steps which can control these small problems such as hardware failure, device driver’s configuration problems, cabling problems, firmware/BIOS problems, Root hub configuration problems, etc. The steps are as follows:

·         Hardware failures or Configuration problems: There may be some hardware problems such as high or low power, limited bandwidth, malfunctioning, etc. In this case, make sure that the root is working properly through the Device Manager. If you find an exclamation mark in a yellow circle or

Q3. How do you solve of problem if you don't hear anything from the sound card? [10]

Ans: Sound Card Problems:

No Sound: You could consider the following solutions if you don't hear anything from the sound card:

·         Ensure that the sound card is set in such a way that it uses all default resources, and that other devices using

Get fully solved assignment. Buy online from website

www.smuassignment.in

online store

or

plz drop a mail with your sub code

computeroperator4@gmail.com

we will revert you within 2-3 hour or immediate

Charges rs 125/subject

if urgent then call us on 08791490301, 08273413412

Get fully solved assignment. Buy online from website

www.smuassignment.in

online store

or

plz drop a mail with your sub code

computeroperator4@gmail.com

we will revert you within 2-3 hour or immediate

Charges rs 125/subject

if urgent then call us on 08791490301, 08273413412

PROGRAM - BCA(REVISED FALL 2012)

SEMESTER - 3

SUBJECT CODE & NAME

BCA 314 – DATA COMMUNICATION

BK ID - B1644

CREDITS - 4

MAXIMUM MARKS – 60

SET 1

Q1. What is Channelization? Briefly explain three channelization techniques. [2+8] = 10

Ans: Channelization: Channelization is a multiple-access method in which the available

bandwidth of a link is shared in time, frequency, or through code, between different stations. In this section, we discuss three channelization techniques: FDMA, TDMA, and CDMA.

1 Frequency-Division Multiple

Q2. What is modulation? Explain why modulation is required? [5+5] = 10

Ans: Modulation: Modulation is the process of varying one of characteristics (either

amplitude or frequency or phase) of a high-frequency periodic waveform, called the carrier signal, with a modulating signal

Q3. Write a note on: [5+5] 10

·         Ground Wave Propagation

·         Sky Wave Propagation

Ans: Ground Wave Propagation: Ground wave propagation follows the curvature of the Earth. Ground waves have carrier frequencies up to 2 MHz. AM radio is an example of ground wave propagation. Figure shows the concept of

SET 2

Q1. Briefly explain Nyquist theorem with mathematical representation. [10]

Ans: Nyquist theorem: The Nyquist theorem states that “a signal must be sampled at least twice as fast as the bandwidth of the signal to accurately reconstruct the waveform” In other words, the sampling frequency should be at least twice the highest frequency contained in the signal. It is mathematically represented

Q2. What is Communication System? Briefly explain the important elements of communication system. [4+6] = 10

Ans: Communication: Basically, communication is the process of conveying a message from one person to other or from one place to another place. It is the exchange of ideas, thoughts and feelings between two persons, places or points.

Q3. What are the advantages of packet switching over circuit switching? [10]

Ans: Packet switching: In packet switching message is divided into blocks of data called packets.

Each packet is associated with a header before they are transmitted individually through the network. The path taken by each packet to reach their respective destination is depending on the status of links used by switching

Get fully solved assignment. Buy online from website

www.smuassignment.in

online store

or

plz drop a mail with your sub code

computeroperator4@gmail.com

we will revert you within 2-3 hour or immediate

Charges rs 125/subject

if urgent then call us on 08791490301, 08273413412

Get fully solved assignment. Buy online from website

www.smuassignment.in

online store

or

plz drop a mail with your sub code

computeroperator4@gmail.com

we will revert you within 2-3 hour or immediate

Charges rs 125/subject

if urgent then call us on 08791490301, 08273413412

PROGRAM - BCA(REVISED FALL 2012)

SEMESTER - 3

SUBJECT CODE & NAME

BCA 315– Soft Skill - Personality Development

BK ID - B0726

CREDITS - 2

MAXIMUM MARKS – 30

SET 1

Q1. Discuss the concept and applications of time management and explain recognizing the importance of time. [5+5] = 10

Ans: Concept and Applications of Time Management: Time management is a set of skills, tools, and systems that help you use your time

Q2. Explain personality. Name its different categories. [5+5] = 10

Ans: Personality – An Explanation: When we talk of personality, we don't mean a person who has charm, a positive attitude towards life, a smiling face, or who has won a beauty contest. When psychologists talk of personality, they mean a dynamic concept describing the growth and development of a person's whole psychological system. The word 'personality' has interesting etymological origins. It can be traced to the Latin word "

Q3. Discuss the Role and Functions of a good leader. [10]

Ans: Role & Functions of a Good Leader: The overall aim of a leader is to achieve the task with the help of his group. To meet the overall aim, the leader has three main objectives :

·         To gain the commitment and cooperation of his team

·         To get

Get fully solved assignment. Buy online from website

www.smuassignment.in

online store

or

plz drop a mail with your sub code

computeroperator4@gmail.com

we will revert you within 2-3 hour or immediate

Charges rs 125/subject

if urgent then call us on 08791490301, 08273413412