BUSINESS DRIVEN TECHNOLOGY(LL)-W/ACCESS
7th Edition
ISBN: 9781260149043
Author: BALTZAN
Publisher: MCGRAW-HILL HIGHER EDUCATION
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Chapter 5, Problem 5RQ
Program Plan Intro
Downtime:
Downtime is referred to a period of time when a machine, especially a computer is unavailable for use or is not active.
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also provide the number of moves(actions) made at state A and moves(actions) made state B. INCLUDE Java program required(this question is not graded)
You are given a class that processes purchases for an online store. The class receives calls to:
•
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Update the database
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Refresh the webpage
a. What architectural pattern is suitable for this scenario? Illustrate your answer by drawing a
model for the solution, showing the method calls/events.
b. Comment on how applying this pattern will impact the modifiability of the system.
c. Draw a sequence diagram for the update operation.
2. The memory management has contiguous memory allocation, dynamic partitions,
and paging. Compare the internal fragmentation and external fragmentation for
these three approaches. [2 marks]
3. Suppose we have Logical address space = 24 = 16 (m = 4), Page size=2² =4 (n = 2),
Physical address space = 26 = 64 (r = 6). Answer the following questions: [4 marks]
1) Total # of pages ?
2) Total # of frames ?
3) Number of bits to represent logical address?
4) Number of bits to represent offset ?
5) Number of bits to represent physical address?
6) Number of bits to represent a page number?
7) Number of bits to represent a frame number /
4. What is translation look-aside buffers (TLBS)? Why we need them to implement the
page table? [2 marks]
5. Why we need shared pages for multiple processes? Give one example to show the
benefits. [2 marks]
6. How to implement the virtual memory by using page out and page in? Explain with
an example. [2 marks]
7. We have a reference string of referenced page…
Chapter 5 Solutions
BUSINESS DRIVEN TECHNOLOGY(LL)-W/ACCESS
Ch. 5 - Prob. 1OCCh. 5 - Prob. 2OCCh. 5 - Prob. 1CQCh. 5 - Prob. 2CQCh. 5 - Prob. 3CQCh. 5 - Prob. 4CQCh. 5 - Prob. 1RQCh. 5 - Prob. 2RQCh. 5 - Prob. 3RQCh. 5 - Prob. 4RQ
Ch. 5 - Prob. 5RQCh. 5 - Prob. 6RQCh. 5 - Prob. 7RQCh. 5 - Prob. 8RQCh. 5 - Prob. 1MBDCh. 5 - Prob. 2MBDCh. 5 - Prob. 3MBDCh. 5 - Prob. 4MBDCh. 5 - Prob. 1CCOCh. 5 - Prob. 2CCOCh. 5 - Prob. 3CCOCh. 5 - Prob. 5CCOCh. 5 - Prob. 1CCTCh. 5 - Prob. 2CCTCh. 5 - Prob. 3CCTCh. 5 - Prob. 4CCTCh. 5 - Prob. 5CCTCh. 5 - Prob. 1AYKCh. 5 - Prob. 2AYKCh. 5 - Prob. 3AYKCh. 5 - Prob. 4AYKCh. 5 - Prob. 6AYKCh. 5 - Prob. 10AYK
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