Tuesday 20 November 2012

OCT/NOV-2012


BOARD DIPLOMA EXAMINATION, (C-09)
OCT/NOV-2012
DECE.-VI SEMESTER EXAMINATION
DATA COMMUNICATION COMPUTER NETWORKS

TIME: 3 Hours]                                                                     [Total Marks :100]
PART   - A
INSTRUCTION:  (1) ANSWER ALL QUESTION AND EACH QUESTION
                                           CARRIES 4 MARKS
                    (2)  ANSWER SHOULD BE BRIEF AND   STRAIGHT      TO  THE POINT AND SHALL NOT EXEED FIVE SIMPLE SENTENCES

1.       Write a short note on lightwave transmission
2.       Define baud rate.
3.       Write any six applications of WAP.
4.       Write a short note on store and forward switch mechanism
5.       Write the advantages and disadvantages of packet switching
6.       Define intranet.
7.       State the functions of ISP.
8.       List the impotant features of TCP.
9.       Write a short note on remote login
10.   What is the purpose of email? List any three email service providers

Part-b

Instructions :    (1) Answer any five questions and each question carries 12 marks.                  (2) The answers should be comprehensive and the criteria for valuation   is the content but not the length of the answer.

11.   Explain the following with cross-sectional diagram and list applications of each: (a) coaxial cable (b) optical fiber cable
12.   (a) distinguish between analog and digital transmissions (b) explain serial and parallel communications.
13.   Explain the following network topologies and write the advantages and disadvantages of each topology: (a) star (b) ring
14.   Draw the OSI 7- layer model and write the functions of each OSI layer.
15.   Write briefly about DSL and Cable modem
16.   Describe the concepts of internetworking.
17.   Explain File Transfer Protocol (FTP) in web applications
18.   Describe the web browser architecture


·         MARCH /APRIL-2008
·         MARCH /APRIL-2009
·         OCT/NOV-2011
·         APRIL/MAY-2012
·         OCT/NOV-2012

·                     OCTOBER/NOVEMBER-2011 (C-09)
·                     APRIL / MAY -2012


APRIL /MAY-2012


BOARD DIPLOMA EXAMINATION, (C-09)
APRIL /MAY-2012
DECE.-VI SEMESTER EXAMINATION
DCCN

TIME: 3 Hours]                                                                     [Total Marks :100]
PART   - A
INSTRUCTION:  (1) ANSWER ALL QUESTION AND EACH QUESTION
                                           CARRIES 4 MARKS
                    (2)  ANSWER SHOULD BE BRIEF AND   STRAIGHT      TO  THE POINT AND SHALL NOT EXEED FIVE SIMPLE SENTENCES

1.     State Shannon capacity theorem?
2.     Briefly explain about serial communication.
3.     What is meant by a computer network
4.     List the features of packet switching.
5.     Mention a few applications of WAP.
6.     Define Internet.
7.     What is the purpose of a bridge in a LAN?
8.     List out the features of TCP.
9.     What is meant by remote login?
10.  What is the role of DNS server.

Part-b
Instructions :    (1) Answer any five questions and each question carries 12 marks.                  (2) The answers should be comprehensive and the criteria for valuation   is the content but not the length of the answer.
11.   (a) explain abut the cross section and applications of coaxial cable. (b) explain about the cross section and applications of optical fiber.
12.   (a) explain about digital data digital signals. (b)explain about digital data analogue signals.
13.   Explain about working of LAN in detail.
14.   Describe carrier sense multiple access in detail.
15.   Describe the high level architecture of ISP system.
16.   Explain the different layers of TCP/IP protocol.
17.   Explain how and e-mail is transferred on internet.
18.   Explain the working of a web server in detail.


·         MARCH /APRIL-2008
·         MARCH /APRIL-2009
·         OCT/NOV-2011
·         APRIL/MAY-2012
·         OCT/NOV-2012

·                     OCTOBER/NOVEMBER-2011 (C-09)
·                     APRIL / MAY -2012

oct/nov-2011


BOARD DIPLOMA EXAMINATION, (C-09)
OCT /NOV-2011
DECE.-VI SEMESTER EXAMINATION
DCCN

TIME: 3 Hours]                                                                     [Total Marks :100]
PART   - A
INSTRUCTION:  (1) ANSWER ALL QUESTION AND EACH QUESTION
                                           CARRIES 4 MARKS
                    (2)  ANSWER SHOULD BE BRIEF AND   STRAIGHT      TO  THE POINT AND SHALL NOT EXEED FIVE SIMPLE SENTENCES

1.     Define data communication?
2.     Differentiate anaog and digital transmission.
3.     State the need for protocols in computer networks
4.     List the OSI 7 layers.
5.     Write the applications of WAP.
6.     Explain the point to point protocol.
7.     What is the role of Gateways?
8.     What is web application
9.     Briefly explain the remote login process.


Instructions :    (1) Answer any five questions and each question carries 12 marks.                  (2) The answers should be comprehensive and the criteria for valuation   is the content but not the length of the answer.


10.   Explain about baud, rate, simplex, half duplex and full duplex communication.
11.   Explain Shannon’s capacity and compare the characteristics of various guided media?
12.   (a) distinguish between circuit switching and packet switching. (b) explain the working of token ring network.
13.   (a)discuss cut through, store and forward and adaptive switch mechanism. (b)explain the Bluetooth technology.
14.   (a) explain about ARPANET and WWW. (b) explain the internal architecture of ISP
15.   (a) what are the various layers of TCP/IP? (b)explain how the TCP connects various systems
16.   (a) explain the purpose of proxy server. (b) explain the FTP in web application in detail
17.   (a) describe the working of web browser. (b) explain the DNS name space






·         MARCH /APRIL-2009
·         OCT/NOV-2011
·         APRIL/MAY-2012
·         OCT/NOV-2012

Saturday 3 November 2012

march/april-2009


BOARD DIPLOMA EXAMINATION, (C-09)
MARCH /APRIL-2009
DECE.-VI SEMESTER EXAMINATION
DCCN

TIME: 3 Hours]                                                                     [Total Marks :100]
PART   - A
INSTRUCTION:  (1) ANSWER ALL QUESTION AND EACH QUESTION
                                           CARRIES 4 MARKS
                    (2)  ANSWER SHOULD BE BRIEF AND   STRAIGHT      TO  THE POINT AND SHALL NOT EXEED FIVE SIMPLE SENTENCES

1.     State the need for data communication networking.
2.     Write any four differences between serial and parallel communication.
3.     Distinguish between circuit switching and packet switching.
4.     Write applications of wireless application protocol.
5.     Differentiate between a repeater and a bridge.
6.     Briefly explain the point to point protocol.
7.     What are the functions of ports and sockets.
8.     What is meant by UDP? State its use.
9.     What is the role of DNS server?
10.  Briefly explain the remote login process.

Instructions :    (1) Answer any five questions and each question carries 12 marks.                  (2) The answers should be comprehensive and the criteria for valuation   is the content but not the length of the answer.

11.   (a) define data communications. (b) explain the Shannon capacity and compare the characteristics of various transmission media.
12.   (a) explain the topology and technology of WLAN. (b) explain the Ethernet frame format.
13.   (a) explain the working of FDDI..          (b)
14.   (a) explain the role of gateways in Internet working process (b) describe the internal archintecture of ISP.
15.   (a) explain in detail about FRAME relay protocol. (b) explain the IP addressing and its classes.
16.   (a) describe the different layers of TCP/IP. (b) explain how the TCP connects various systems
17.   (a) describe POP server and SMTP server. (b) explain the file transfer operation in web applications.
18.   (a) describe the working of web browser. (b) explain the DNS namespace


·         MARCH /APRIL-2009


·         MARCH /APRIL-2008
·         MARCH /APRIL-2009
·         OCT/NOV-2011
·         APRIL/MAY-2012
·         OCT/NOV-2012

·                     OCTOBER/NOVEMBER-2011 (C-09)
·                     APRIL / MAY -2012



Wednesday 3 October 2012

Unit Test 2 Question papers for diploma


SET-1
2nd Unit Test Questions
UNIT TEST-II: November 2012                                Maximum Marks :20
Semester : 6th                                       Subject Code & Name: DCCN
Section- A
Answer all questions (5*2=10)
1.                  List HTTP Commands
2.                 Write about WWW.
3.                 Write about DNS Server
4.                 Write about uses of UDP.
5.                 What is repeater and Bridge
Section-B
Answer any two questions 5*2=10
1.                   Explain the layers of TCP/IP.
2.                  Describe packet switching and circuit switching.
3.                  Explain how E-mail works

Unit test-II SET-2
Section- A
1.                   Write about PPP (or) write about PSTN
2.                  Write about remote login
3.                  Write about active and passive open connections in TCP/IP.
4.                  Explain working of LAN
5.                  List different WLAN topologies.
Section-B
Answer any two questions 5*2=10
1.                   Functions of OSI Layers
2.                  Explain ISDN Architecture.
3.                  Explain working of Web Server
Unit test-II SET-3
Section- A  
1.                   Write about features of TCP/IP.
2.                  Explain router and routing process.
3.                  Write applications of WAP.
4.                  Write about ARPANET.
5.                  Write about ARP protocols.

Section-B
1.                  Explain Ethernet Frame Format
2.                 Explain High Level Architecture of ISP.
3.                 Explain web browser architecture


signals are continuous in nature.