Bct2307 :Distributed Systems Question Paper
Bct2307 :Distributed Systems
Course:Computer Technology
Institution: Meru University Of Science And Technology question papers
Exam Year:2010
1
QUESTION ONE – 30 MARKS
a. Describe a distributed system. (2 Marks)
b. Describe the following words as used in distributed systems:
(10 Marks)
i. Scalability
ii. Concurrency
iii. Thread
iv. Transparency protocol
v. Communication
c. Differentiate between a 2-tier model and a 3-tier model in the client/server model interactions.(4 Marks)
d. Differentiate between a centralized system and a distributed system (4 Marks)
e. What is RPC and how does it work? (4 Marks)
f. Explain the disadvantages of distributed databases. (6 Marks)
QUESTION TWO – 30 MARKS
a. What is transparency in a distributed system? (2Marks)
b. Explain the different types of transparencies in a distributed system (10 Marks)
c. Explain four characteristics of distributed systems. (8 Marks)
QUESTION THREE – 20 MARKS
a. What is a communication protocol? (2 Marks)
2
b. Differentiate between connection-oriented communication service and connectionless-oriented
communication service. (4 Marks)
c. Explain the OSI layered communication model. (14 Marks)
QUESTION FOUR – 20 MARKS
a. Discuss the various types of operating systems for distributed systems. (8 Marks)
b. Discuss the four advantages of using a distributed system. (8 Marks)
c. Using a well illustrated diagram, explain the general interaction between the client and the server in a
distributed environment. (4 Marks)
QUESTION FIVE – 20 MARKS
a. Differentiate between a distributed database and a distributed DBMS. (5 Marks)
b. Explain two advantages of distributed systems. (5 Marks)
c. Explain the three factors to consider when designing a distributed operating system. (5 Marks)
d. What is fragmentation and why is it important in distributed database environment? (5 Marks)
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