Thursday, 15 December 2016

bca5010 smu bca fall 2016 Vth sem solved assignments

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Fall 2016
BCA5010- WEB DESIGN

Qus:1 Define the term internet. Write short notes on history of internet.
Ans:
Internet:
Connecting all system in world called internet. It is a network of network that consists of millions of private, public, academic, business and government networks, of local to global scope, that are linked by

Qus: 2 briefly explain any 10 structure tags of HTML document.
Ans:
Structure tags of HTML document:
Each web page begins and ends with a special command: <HTML> and the ending </HTML>. These commands tell the browser that everything in-between is the web page. Inside the web page, there are two basic parts: the HEAD and the BODY.

Qus: 3 Describe Class Based IP Address.
An:
Class Based IP Address:
There are five classes of IP addresses.

Qus: 4 List the advantages of DHTML.
Ans:
Advantages of DHTML:
1. Supported by all browsers: DHTML is supported in every major browser, including Opera, Safari, Internet Explorer, and Firefox.
2. Open standards: You can create your pages according to the standardized technologies of DHTML and you can


Qus:5 What are the loop types available in PHP? Explain each of them with the syntax.
Ans:
Loop types available in PHP:
Loops are used to execute same block of code repeatedly. There are mainly four loops. They are,
·         For
·         While
·         Do…while
·         For each

a) The for loop statement
For loop is an entry controlled loop. First it will check the condition and after that it will execute the block statemen


Qus:6 a) How do you use JavaScript within a HTML file?
b) Classify the different JavaScript data types
Ans:
a) How do you use JavaScript within a HTML file:
JavaScript can be used in different ways within an HTML file.

1.      Header scripts: JavaScript is embedded between <SCRIPT> tags within the <HEAD> tag and is used for initializing variables and or create functions that can be called from anywhere of the


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Monday, 28 November 2016

mca5010 smu mca fall 2016 Vth sem solved assignments

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PROGRAM-MCASEMESTER-V
SUBJECT CODE & NAME-MCA5010-WEB TECHNOLOGIES
CREDIT-4
BK ID-B1547
MAX. MARKS-60
Qus:1 Differentiate between TCP and UDP
Answer:
Differentiate between TCP and UDP:
TCP (Transmission Control Protocol):
The TCP corresponds to the transport layer of OSI reference model, The TCP is known as a connection-oriented protocol, which means that connection is established and maintained until such time as the message or messages to be exchanged by the application programs at each end have been exchanged. TCP makes sure data

Qus: 2 describe the features of XML. What are the important rules to keep in mind about the XML declaration?
Answer:
The features of XML:
XML is popular for many features and few of them are listed here:
1.      Easy Data Exchange: In XML, data and mark-up are stored as text that we can configure. If we like, we can use


Qus: 3. List and explain the Components of XML processor.
Answer.
Components of XML processor:
a) Parser:

Every XML processor has a parser. An XML parser converts an XML document into an XML DOM object –


Qus:4. Describe the procedure of fetching data from XML to HTML. Give an example.
Answer.
Procedure of fetching data from XML to HTML:
The process of fetching data from an XML files to be filled in an HTML table, using DSO (Data Source Object) and JavaScript. DSO is an object that operates like a database on the client side. It will accept information that is organized in a certain way and will manipulate it with its own database engine.
DSO allows data binding to HTML table elements. When a table element is bound there is no need to write out the code for individual

Qus:5. Describe five different categories of PHP Operators.
Answer.
Categories of PHP Operators:
In all programming languages, operators are used to manipulate or perform operations on variables and values. There are many operators used in PHP, so we have separated them into the following categories to make it easier to learn them all.

Ø  Assignment Operators


Qus:6. Describe about ASP.
Answer.
ASP:
The page on the server called by the JavaScript is an ASP file called AJAX server page. The server file could easily be rewritten in PHP, or some other server languages. Look at the example in PHP. The source code in "

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bt0086 smu bsc it fall 2016 Vth sem solved assignments

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Bt0086
fall 2016

1 How “wireless and mobile are two different concepts”. Explain any two applications that use wireless networks and mobile communications.

Answer: TDMA is the access method used by the Electronics Industry Alliance and the Telecommunications Industry Association for Interim Standard 54 (IS-54) and Interim Standard 136 (IS-136). Using TDMA, a narrow band that is 30 kHz wide and 6.7 milliseconds long is split time-wise into three time slots. Narrow band means channels in the traditional sense. Each


2 What is modulation? Briefly explain Amplitude Modulation (AM), Frequency Modulation (FM) & Phase modulation (PM).

Answer: Modulation
The modulation technique used on the radio channel is Gaussian Minimum Shift Keying (GMSK). GMSK belongs to a family of continuous-phase modulation procedures, which have the special advantages of a narrow transmitter power spectrum with low adjacent channel interference, on the


3 Explain the GSM TDMA frame with the help of frame structure.

Answer: There are five kinds of burst GSM TDMA frame:
Normal Burst (NB): The NB is used to transmit information on traffic and control (except RACH) channels. The individual bursts are separated from each other by guard periods during which no bits are transmitted. At the start and end of each burst are three tail bits which are always set to logical ‘0’. These bits fill a short time span during which transmitter power

4. Explain Source Coding and Speech Processing.
Answer:
Source Coding and Speech Processing
Source coding reduces redundancy in the speech signal and thus results in signal compression, which means that a significantly lower bit rate is achieved than needed by the original speech signal. The speech coder/decoder is the central part of the GSM speech processing 


5. Write short notes on Cluster-based routing protocol.
Answer:
In Cluster Based Routing protocol (CBRP) [Jiang99], the nodes are divided into clusters. To form the cluster the following algorithm is used. When a node comes up, it enters the "undecided" state, starts a timer and broadcasts a Hello message. When a cluster-head gets this hello message

6. Mention and explain different Table-Driven Routing Protocols.
Answer:
Table-driven Routing Protocols: Keeps routing tables at each node, which is updated periodically, and the routing procedure is based on this data.
One routing-table driven method is the next-hop model. In this model, each node keeps the best next-hop node

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bca4010 smu bca fall 2016 IVth sem solved assignments

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Bca4010
Fall 2016
Sem 4th

Q1. What is OSI model? Explain all its layers with diagram.


Answer: Before 1990’s data communication model had been used, in 1990’s open system Interconnection (OSI) was used. Later TCP/ Ip protocol suit has been developed such that it was easy to use and efficient to other. Established in 1947, the International Standards Organization (ISO) is a multinational body dedicated to worldwide agreement on International standards. An ISO standard that covers

2 What is Message and Packet switching?

Answer: Message switching
Message switching was the precursor of packet switching, where messages were routed in their entirety and one hop at a time. It was first introduced by Leonard Kleinrock in 1961. Message switching systems are nowadays mostly implemented over packet-switched or circuit-switched data networks.

Qus:3 What is Stop-and-Wait Automatic Repeat Request? Briefly explain.
Answer:
Stop-and-Wait Automatic Repeat Request:
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


Qus:4 What is the role of Internet Protocol version 4 (IPV4) in addressing and routing packets between hosts? Briefly explain the structure of an IPV4 packet.
Answer:
The role of Internet Protocol version 4 (IPV4) in addressing and routing packets between hosts:
IPV4 is a datagram protocol primarily responsible for addressing and routing packets between hosts. IPV4 is

5. Discuss about different DNS Resource Record Types.
Answer:
Types of DNS Records
A
AAAA
CNAME
MX 
PTR


6 Briefly explain five parts of Multipurpose Internet Mail Extensions.

Answer: MIME can be described in five parts:
Ø  Protocols for including objects other than US ASCII text mail messages within the bodies of messages conforming to RFC 2822. These are described in RFC 2045.
Ø  General structure of the MIME media typing system, which defines an initial set of media types. This is

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Sunday, 13 November 2016

mca113 smu mca fall 2016 Ist sem solved assignments

NAME

ROLL NO.

DRIVE
FALL 2016
PROGRAM/SEMESTER
MCA SEMESTER 1
SUBJECT CODE & NAME
MCA113- FOUNDATION OF MATHEMATICS
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1 Draw the truth tables of Conjunction, disjunction and Bi-conditional statements.

Answer: Regarding truth value of conjuction of statements, We have
(D1) : TÙ T = T
(D2): TÙ F = FÙ T

2 If y = e^ax cos^3x sin^2x find dy/dx

Answer: y = eax cos3x sin2x

Dy/dx = dy/dx(eax cos3x sin2x)

Dy/dx = eax


3 Find the Taylors expansion of f(x) = Sin x at x = 0.

Answer: Taylor's Theorem is an extension of the Mean value theorem.

Though Taylor's Theorem has applications in numerical methods, inequalities and local maxima and minima, it basically deals with approximation of functions by polynomials.

4 Find the nth derivative of
i) Cos mx
ii) Cos^2x

Answer: i) Cos mx
y^(1) = - m sin mx
y^(2) = - m^2 cos mx
y^(3) = m^3 sin mx
y^(4

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