Jawaharlal Nehru Technological University Hyderabad 2006-1st Year B.E Computer Science IV Sem (NR410502) -Sup'06 - Distributed Systems - Question Paper

Code No: NR410502 NR
IV B.Tech I Semester Supplementary Examinations, November 2006
DISTRIBUTED SYSTEMS
( Common to Computer Science & Engineering, info Technology
and Electronics & Computer Engineering)
Time: three hours Max Marks: 80
ans any 5 ques.
All ques. carry equal marks
1. (a) Differentiate ranging from the monolithic kernel and micro kernel approaches for
designing a distributed operating system. State the relative advantages and
disadvantages.
(b) Why are distributed operating system more difficult to design than operating
systems for centralized time-sharing system? [12+4]
2. (a) Elucidate the main differences ranging from a LAN and a WAN.
(b) Why are medium-access control protocols needed? What properties must a
good medium-access-control protocol have? [8+8]
3. explain the strategies used to handle deadlocks and their applicability to distributed
systems. [16]
4. (a) explain the problems that has to be considered in allocating processors to processes in a distributed system.
(b) explain the hierarchial, heuristic and the bidding algorithm for processor al-
location. [8+8]
5. (a) Write about Satyanarayanan’s observation on file usage in a distributed sys-
tem. How it is useful in implementation of a file system.
(b) Compare write through and write once protocols. [8+8]
6. (a) discuss about Dash(Directory Architecture for shared memory)
(b) How NUMA multiprocessor differ from other multiprocessor. [8+8]
7. (a) Does a process know that a port it is studying from is truly a port set? Does
it matter?
(b) Illustrate the concept of Thread in Mach OS. [6+10]
8. (a) What is the need for distributed file system (in DCE)
(b) explain the main features of distributed file system(in DCE) [8+8]

Code No: NR410502    NR

IV B.Tech I Semester Supplementary Examinations, November 2006

DISTRIBUTED SYSTEMS ( Common to Computer Science & Engineering, Information Technology and Electronics & Computer Engineering)

Time: 3 hours    Max Marks: 80

Answer any FIVE Questions All Questions carry equal marks

1.    (a) Differentiate between the monolithic kernel and micro kernel approaches for

designing a distributed operating system. State the relative advantages and disadvantages.

(b) Why are distributed operating system more difficult to design than operating systems for centralized time-sharing system?    [12+4]

2.    (a) Elucidate the main differences between a LAN and a WAN.

(b) Why are medium-access control protocols needed? What properties must a good medium-access-control protocol have?    [8+8]

3. Discuss the strategies used to handle deadlocks and their applicability to distributed

systems. [16] 4. (a) Discuss the issues that has to be considered in allocating processors to processes in a distributed system. (b) Discuss the hierarchial, heuristic and the bidding algorithm for processor al- location. [8+8] 5. (a) Write about Satyanarayanans observation on file usage in a distributed sys- tem. How it is useful in implementation of a file system. (b) Compare write through and write once protocols. [8+8] 6. (a) Explain about Dash(Directory Architecture for shared memory) (b) How NUMA multiprocessor differ from other multiprocessor. [8+8] 7. (a) Does a process know that a port it is reading from is actually a port set? Does it matter? (b) Illustrate the concept of Thread in Mach OS. [6+10] 8. (a) What is the need for distributed file system (in DCE) (b) Discuss the main features of distributed file system(in DCE) [8+8]

1 of 1

Attachment: jawaharlal-nehru-technological-university-hyderabad-2006-b-e-computer-science-43504-1.pdf

Earning:   Approval pending.