Cochin University of Science and Techology (CUST) 2005-7th Sem B.Tech Information Technology ,, IT 704 Distributed Computing - Question Paper

BTS(C) -VII - 05 - 069 (A)

B.Tech. Degree VII Semester Examination, November2005

IT 704 DISTRIBUTED COMPUTING ( 2002 Admissions )

Time* 3 Hours    Maximum Marks: 100

I    a) What do you mean by distributed systems? Explain the various design issues of

distributed systems.    (12)

b) Explain interprocess communication.    (8)

OR

II    a) Explain remote procedure call with diagram.    (10) b) Explain SUN RPC.    (10)

III    a) Discuss about processes and threads in a distributed OS.    (10) b) Explain the distributed file system requirements.    (10)

OR

IV    a) Discuss about name services, name spaces and name resoution.    (10) b) Explain the Domain Name System.    (10)

V    a) Discuss about the need for clock synchronization.    (10) b) Explain the cristian's method Tor synchronizing clocks.    (10)

OR

VI    a) Explain any one algorithm for mutual exclusion.    (10) b) Explain any one election algorithm.    (10)

VII    a) Write notes on:

(i) nested transactions (ii) locks    (10)

b) Explain concurrcncy control in distributed transactions.    (10)

OR

VIII    t) What do you mean by deadlock. Explain distributed deadlocks, phantom deadlocks. (10) b) Explain edge chasing method for dcalock detection.    (10)

IX    a) Explain passive replication and active replication models for fault tolerancc.    (10) b) Write notes on:

(i) logging    (it) shadow versions    (10)

OR

X    Write notes on:

(i) digital signature    (ii) cryptography    (10)

Attachment: cochin-university-of-science-and-techology--cust--2005-b-tech-information-technology-37260-1.jpg

Earning:   Approval pending.