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Cop 211 Distributed Systems Question Paper

Cop 211 Distributed Systems

Course:Bachelor Of Science In Computer Science

Institution: The Presbyterian University Of East Africa question papers

Exam Year:2016

PROGRAMME: BBIT/ Bsc Computer Science
UNIT CODE: COP 211
UNIT NAME: DISTRIBUTED SYSTEMS
CAMPUS: NAKURU
STUDENTS: 5
INSTRUCTIONS: ANSWER QUESTION ONE (COMPULSORY) AND ANY OTHER TWO QUESTIONS
Question one (30 Marks)
a) Discuss the following terms in relation to distributed systems (10 marks)
i. Transparency
ii. Parallelism
iii. Scalability
iv. Distributed Computing
v. DDBS
b) Discuss the advantages of the client server architecture (6 Marks)
c) Using a well labelled diagram, describe the database integration process (7 marks)
d) Explain the term schema heterogeneity (5 marks)
e) What is a data warehouse? (2 marks)

Question Two (15 Marks)
a) Explain two concepts in the bottom up design (4 Marks)
b) Discuss the significance of learning-based schema matching (6 Marks)
c) State five advantages of distributed systems (5 Marks)

Question Three (15 Marks)
a) Describe two issues in database integration (4 marks)
b) Briefly describe the mapping creation algorithm (3 marks)
c) State and explain four types of transparency (4 marks)
d) List four strategies for handling deadlocks (4 Marks)

Question Four (15 Marks)
a) Describe one way in which a false deadlock can be prevented (2 Marks)
b) Using diagrams, describe the two methods of schema integration (7 Marks)
c) Briefly describe the process of schema generation (6 marks)

Cop 211 Distributed Systems Question Paper

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