Gujarat University 2008-3rd Year B.C.A Computer Application Data Communication and Network - Question Paper
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TBCA-01
April-2008 Data Communication and .Networks (New Course)
(Max. Marks: 70
Figures to the right indicate full marks.
Answers of alt sub questions should be written in continuous order.
Make and state any necessary assumptions.
Draw figures wherever neccssarv.
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Time : 3 Hours)
Instructions:
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(2)
(3)
(4)
(a)
Fill in the blanks : (Any five)
iyf The type of modulation that uses the height if the wave to signify Ms and *0s is
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A network that requires a dedicated path between two nodes for the duration of the transmission is a_network.
The_protocol describes a standard for International Electronic Mail.
A communication system is made up of _, .
and
b..
(f Novells server-based Operatiug System is called_.
(6) If a customer wants to keep the same telephone number regardless of location._is used.
Answer the following : (Any five) 05
MY Define bit rate and baud rate.
42)" List one difference between the ASCII and EBCDIC data codes.
(3) What is LU 6.2?
JA1) A technique called store-and-fonvard is used in what type of network ?
J** Give example of two devices that use Bluetooth technology.
Give difference between Internet and Intranet.
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(c)
Answer the following : (Any two)
p) List and explain any two standard organizations.
(2) Give difference between :
(a) Synchronous and Asynchronous data transmission.
(b) FDMA and TDMA.
f3f List out the factors on which the selection of media depends.
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(a) Answer the following : (Any fmin 08
<J.K Doiir.t Motion Jixplam dilVrvni types of Modem.
(2) Define Routing. Lxpiuin different typesof Routing methods.
Jrrf What is FFP and give its functions.
<4} Explain in brief Digital Network Architecture (DNA). *
Draw TOVIP Packet.
(6) Lsst different types of client or terminals in Network and Explain any two.
<b) Answer the following (Any "<> 06
JM Identify cach of the following as Simplex, I lalf-duplcx or Full duplex :
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,*2) Explain Fiber Opticsdetail with diagram. (,1i) Write a short nute on Spread Spectrum Radio. |
(a)' WhiH is Satellite microwave transmission. Explain LEOS.MEOS and GEOS. 05
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<a) Explain in detail Erroi Detection with Retransmission.
(b) Answer the following (Any three) 09 H Show sll laver< of OSf M<ulel and explain tn brief functions of any two
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J2J- Write a shout n< te o Secure Sockct Layer (SSL).
(3) Why is Network management done ? Explain User Satisfaction in detail.
t*Y- Write a short note on X.25 protocol.
1?) Explain the working of Token Passing Ring,
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(a) Explain Circuit switching and Message switching in detail with diagram. 05
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Define Multiplexer ? Explain with diagram FDM.TDM.S l l)M and WDM.
(b) Answer the fallowing: (A'ny three) 09 *+T FxpSain PoiuMo-ptnm connection and Multipoint connection with diagrams. 42-f List different topologies used in WAN. Explain any one with diagram.
s&r System Network Architecture (SNA). _
<4) Explain MTBF and M'lTK.
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(a) Explain ADSL. HDSL. ISDL and VDSL OK
-ftff' Explain Repeater, Bridge, Router and Gateway.
(M Write a short note on the following : (Any five) & LRC and VRC
Digital Signatures -(3r VPN
Hr Server Uasccl LAN " (5) RF Modem
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| Earning: Approval pending. |
