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IGNOU UNIVERSITY MCA - I (SEM 2) JUN 2009 : Operating System Concept And Ne...

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MCA (Revised) ro Term-End E xamination s.\ Iune, 2A09 MCS-022: O PERATING S YSTEM C ONCEPTS AND NETWORKING MANAGEMENT Time : 3 h ours Note : L. Maximum M arks : 1 00 Q uestionN untber1 ,i s c ompulsory.A nswer a ny t hree questions f ro* t he r est. ( a) \ A/hati s s ymmetric m ultiprocessing? W rite the i mportant a dvantageso f s ymmetric multiprocessor architecture. (b) o ver u niprocessor H ow c an a c ollision b e a voided o n a CSMA/CD n etwork ? A lso, c ompute CSMA/ C D a nd t oken p assing a ccess methods. (.) W rite a s hell p rogram t o f ind t he G reatest Common Divisor (GCD) for any two given numbers. (d) W hat i s a f ilter i n L inux ? G ive t wo examples of filters with the effect of each. (") D escribe t he c oncept o f e ncrypting u sing EFSs ervices. MCS-022 P.T.O. (f) (g) List a ny f ive s ervicesp rovided b y W indows 2000 Server for network management. Compare a nd c ontrast t he ' Mandatory Accessc ontrol' a nd ' Discretionary A ccess control' m echanisms i n W indow. (h) 2. What o ption i n r egistry m anagement w ill t be u seful i n t racking w ho a ccessed he Registry, f rom w here, a nd w hen ? A lso, write t he s teps f or e nabling t his o ption. (u) Identify t he c lasseso f T CSEC f or t he following c ases. A lso, e xplain t he specificationso f e ach c lass : (i) (ii) Security Domain (iii) (b) L abeled s ecurity p rotection C ontrolled A ccessp rotection How d oes a T oken B us n etwork w ork ? I n what w ays i s i ts w orking d ifferent f rom token Ring ? (") 3. Differentiate between absolute and relative pathnames. Also, give an example for each. (u) What is on-line conununication and off-line communication i n L INUX ? G ive a t l east two c ommands t o c arty o ut e ach o f t hese communication MCS-022 in LINUX. ( b) What a re t he m ain c omponents o f D NS architecture ? Explain them with their role in a ddress r esolution a nd m apping. A lso, give a m echanism t o b e u sed f or o ptimrzing the s earch c ost. (.) Write t he m ain s teps f or c onfiguring t he Local A rea N etwork i n W indow X P. 4. (a) W hat i s d omain i n n etwork ? H ow d oes Windows 2 000m anaget he d omains ? A lso, explain h ow t he t rust r elationship i s c reated and m anaged b etween d omains ? (b) (.) J. E xplain t he l imitations o f p acket f iltering gateways. H ow a re t hese o vercome b y stateful p acket f iltering f irewall. G ive t he a dvantagesa nd d isadvantageso f Star, M esh a nd R ing t opologies. Describet he f ollowing w ith i llustrative e xamples 4x5=20 or d iagrams a s n eeded : (u) X -Window s ystem (b) Network file server (") R AID (d) V irtual P rivate N etwork -oOo- MCS-022 3

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Additional Info : Mca - I (sem 2) June 2009 Question Paper - Operating System Concept And Networking Management(Revised Course)
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