Copyright July 2007 Menara BCA, GRAND INDONESIA, JL. THAMRIN no 1. JAKARTA, INDONESIA.
BCA 5 - 2006 July
5
9171/2006 (July ) BCA 5 th Semester DDE Examination DATA COMMUNICATION AND NETWORKS BCA - 301 Time allowed - 3 hour Maximum marks: 75 Note : Attempt any five questions. All questions carry equal marks. Before Answering the question paper candidates should ensure that they have been supplied to correct and complete question-paper. Complaints in this regard, if any will not be entertained after the examination. 1. (a) What do you mean by FDDI ? Discuss its objectives, relevance and usefulness. 6 (b) What are layered protocols ? What are the main reasons for using Layered Protocols ? Explain. 5 (c) Data link protocols almost always put the CRC in a trailer, rather than in a header. Why ? 4 2. (a) What is the minimum overhead in sending an IP packet using PPP ? Count only the overhead introduced by PPP itself, not the IP header overhead. 5 (b) What is Multiplexing ? List different types of multiplexing techniques possible for signals and outline the working of each. 5 (c) What do you mean by HDLC ? Explain HDLC with flow-control and error-control. 5 3. (a) What is Encoding ? Illustrate the difference between Manchester and differential encoding. 5 (b) What do you understand by UDP ? Why does UDP exist ? Would it not have been enough to just let user processes send raw IP packets ? Explain. 5 (c) What is data-encryption and -decryption ? What is the significance of using such techniques ? 5 4. Explain the following (a) IEEE Standards for LAN and MAN 5 (b) Satellite Networks 5 (c) ATMs. 5 5. (a) What is Switching ? Does time division switching, necessarily introduce a minimum delay at each switching stage ? If so, what is it ? 6 (b) What do you understand by TCP/IP Reference Model ? Illustrate its working through diagram. 9 6. (a) What are sliding window protocols ? Discuss their significance. 5 (b) What do you mean by Computer Network Topology ? What are its various types ? Discuss suitability of each. 5 (c) What is Network Interface Card ? Are we able to make LAN without network interface card? If yes, then explain briefly. 5 7. Differentiate between the following (a) Collision free protocols and Limited contention protocols 5 (b) Circuit switching and packet switching 5 (c) Gateways and Bridges. 5 Go to www.mdu.li to get lots of stuff for free :) Go to www.mdu.li to get lots of stuff for free :)
Transcript of BCA 5 - 2006 July
9171/2006 (July ) BCA 5th Semester DDE Examination
DATA COMMUNICATION AND NETWORKS BCA - 301
Time allowed - 3 hour Maximum marks: 75 Note : Attempt any five questions. All questions carry equal marks. Before Answering the question paper candidates should ensure that they have been supplied
to correct and complete question-paper. Complaints in this regard, if any will not be entertained after the examination.
1. (a) What do you mean by FDDI ? Discuss its objectives, relevance and usefulness. 6 (b) What are layered protocols ? What are the main reasons for using Layered Protocols ?
Explain. 5 (c) Data link protocols almost always put the CRC in a trailer, rather than in a header. Why ? 4 2. (a) What is the minimum overhead in sending an IP packet using PPP ? Count only the
overhead introduced by PPP itself, not the IP header overhead. 5 (b) What is Multiplexing ? List different types of multiplexing techniques possible for signals
and outline the working of each. 5 (c) What do you mean by HDLC ? Explain HDLC with flow-control and error-control. 5 3. (a) What is Encoding ? Illustrate the difference between Manchester and differential encoding.
5 (b) What do you understand by UDP ? Why does UDP exist ? Would it not have been enough
to just let user processes send raw IP packets ? Explain. 5 (c) What is data-encryption and -decryption ? What is the significance of using such
techniques ? 5 4. Explain the following (a) IEEE Standards for LAN and MAN 5 (b) Satellite Networks 5 (c) ATMs. 5 5. (a) What is Switching ? Does time division switching, necessarily introduce a minimum delay at
each switching stage ? If so, what is it ? 6 (b) What do you understand by TCP/IP Reference Model ? Illustrate its working through
diagram. 9 6. (a) What are sliding window protocols ? Discuss their significance. 5 (b) What do you mean by Computer Network Topology ? What are its various types ? Discuss
suitability of each. 5 (c) What is Network Interface Card ? Are we able to make LAN without network interface card?
If yes, then explain briefly. 5 7. Differentiate between the following (a) Collision free protocols and Limited contention protocols 5 (b) Circuit switching and packet switching 5 (c) Gateways and Bridges. 5
Go to www.mdu.li to get lots of stuff for free :)
Go to www.mdu.li to get lots of stuff for free :)
8. (a) Differentiate clearly between Base-band coaxial and Broad-band coaxial cables. Which one is preferred over one another and why ? 6
(b) Which of the OSI layers handles each of the following : 6 (i) Breaking the transmitted bit stream into frames (ii) Determining which route through the subnet to use, (c) What is bandwidth of a channel ? Discuss the main factors on which channel's bandwidth
depends. 3
Go to www.mdu.li to get lots of stuff for free :)
Go to www.mdu.li to get lots of stuff for free :)
9172/2006 (July ) BCA 5th Semester DDE Examination
COMPUTER GRAPHICS BCA - 302
Time allowed - 3 hour Maximum marks: 75 Note : Attempt any five questions. All questions carry equal marks. Before Answering the question paper candidates should ensure that they have been supplied
to correct and complete question-paper. Complaints in this regard, if any will not be entertained after the examination.
1. (a) Describe the basic graphic system. Explain its role and importance. 8 (b) Describe in detail the principles for categorizing graphic applications. 7 2. (a) Explain the working of storage display and display processor with diagram. 8 (b) Describe the frame buffer and operation concepts in Raster Graphics. 7 3. (a) Explain the principle vanishing points. Describe the principle vanishing points for the
standard perspective transformations. 8 (b) Describe in detail projection. Explain various perspective projection anomalies. 7 4. (a) Explain in detail circle generation. 7 (b) Explain the steps for conic section generation. 8 5. (a) Describe in detail interactive picture construction techniques. 7 (b) Explain in detail 3-D viewing and 3-D transformations. 8 6. (a) Describe the importance of hidden surface elimination. Explain scan line algorithm. 9 (b) Describe in detail distortion. Describe steps for removing distortion in viewing
transformations. 6 7. (a) Describe in detail Fractal Clouds and random Fractal Surfaces. 9 (b) Describe in detail hidden line removal in grid surfaces. 6 8. (a) Explain the Computer Assisted Animation and Real Time Animation. 9 (b) Describe the Quadtree and Octree data structures. 6
Go to www.mdu.li to get lots of stuff for free :)
Go to www.mdu.li to get lots of stuff for free :)
9173/2006 (July ) BCA 5th Semester DDE Examination
Principles of VISUAL and Windows Programming BCA - 303
Time allowed - 3 hour Maximum marks: 75 Note : Attempt any five questions. All questions carry equal marks. Before Answering the question paper candidates should ensure that they have been supplied
to correct and complete question-paper. Complaints in this regard, if any will not be entertained after the examination.
1. Differentiate between the following (a) Graphical User Interface (GUI) and Character User Interface (CUI) (b) Syntactic analysis and semantic analysis of iconic sentence. 2. Write short notes on the following (a) Structure of a window program (b) Iconic purity. 3. What do you understand by windows programming? How does a typical windows program work ?
Explain using a flow chart. 4. What is Graphical Device Interface (GDl) ? What are the different types of brushes for carrying out
drawing ? Discuss their uses. 5. Write a program to get the status of shift and toggle keys. 6. What do you understand by controls ? Give an overview of the following types of controls (a) Static control (b) Buttons (c) Edit Box (d) Scroll Bars. 7. What do you understand by a toolbar ? Discuss the procedure of creating a toolbar and relating
the items in a menu with the buttons on a toolbar. 8. (a) Discuss the characteristic features of a visual language compiler. (b) What is operator dictionary ? Discuss its structure.
Go to www.mdu.li to get lots of stuff for free :)
Go to www.mdu.li to get lots of stuff for free :)
9174/2006 (July ) BCA 5th Semester DDE Examination
JAVA Programming & INTERNET Technologies BCA - 304
Time allowed - 3 hour Maximum marks: 75 Note : Attempt any five questions. All questions carry equal marks. Before Answering the question paper candidates should ensure that they have been supplied
to correct and complete question-paper. Complaints in this regard, if any will not be entertained after the examination.
1 (a) What do you understand by interfaces in Java ? What are the members of an interface ? Illustrate the implementation of interfaces in Java. 8
(b) What do you understand by server-side programming '? Discuss its essence as well as the problems that come across during this programming. 7
2 (a) How are the arrays implemented in Java ? Illustrate the declaration and usage of arrays through suitable example. 8
(b) What is network news transfer protocol (NNTP) ? What are its responsibilities ? Illustrate. 7
3 (a) What are Constructors ? Discuss some important constructors of classes String and String Buffer. 7
(b) What data types are supported by Java ? Illustrate the usage data types through suitable examples. 8
4. Explain the following (a) Delegation Event Model (b) Telnet (c) USENET
5. Differentiate between the following (a) Function overloading and overriding 5 (b) Multiple and multi-level inheritance 5 (c) JavaScript and Java. 5
6. (a) What do you understand by exception handling ? How arc the exceptions handled using Java ? Illustrate. 7
(b) What is event-driven programming ? How is Java suitable for this programming ? How is the same achieved using Java ? Illustrate. 8
7. Explain the following (a) Visibility controls in Java 5 (b) Domain name system 5 (c) SMTP. 5
8. (a) What do you understand by multithreaded programming ? How are threads created and implemented in Java ?Illustrate through a suitable example. 8
(b) What is a web-page ? How are Java Applets useful for web-page design ? How is an applet created and run ? Illustrate. 7
Go to www.mdu.li to get lots of stuff for free :)
Go to www.mdu.li to get lots of stuff for free :)
