DATABASE SYSTEM CONCEPTS LCPO
7th Edition
ISBN: 9781265586577
Author: SILBERSCHATZ
Publisher: MCG
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Chapter 19, Problem 6PE
Program Plan Intro
Shadow-paging scheme:
Shadow-paging is a variation of shadow-copying scheme which introduces a page table that includes a pointer to all pages. Here, a copy of both the updated pages and the page table is made to the new location.
Explanation of Solution
b.
Logging being cheaper than a shadow-copy scheme:
For transactions performing small updates, logging is cheaper because of the following reasons:
- Even with the given optimization, shadow paging ends up copying multiple pages even for single updates.
- However, logging needs creation of small records for each update...
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summarize in a short paragraph how to Advance Incident Response and Automation in ML home based security systems
1.[30 pts] Computers generate color pictures on a video screen or liquid crystal display by
mixing three different colors of light: red, green, and blue. Imagine a simple scheme, with
three different lights, each of which can be turned on or off, projecting onto a glass screen:
We can create eight different colors based on the absence (0) or presence (1) of light
sources R,G and B:
R
G
B
Color
0
0
0
Black
0
0
1
Blue
0
1
0
Green
0
1
1
Cyan
1
0
0
Red
1
0
1
Magenta
1
1
1
0
Yellow
1
White
1
Each of these colors can be represented as a bit vector of length 3, and we can apply
Boolean operations to them.
a. The complement of a color is formed by turning off the lights that are on and turning
on the lights that are off. What would be the complement of each of the eight colors
listed above?
b. Describe the effect of applying Boolean operations on the following colors:
Λ
1. Red(100) ^ Magenta(101)= Blue(001)
2. Bue(001) | Green(010)=
3. Yellow(100) & Cyan(011)=
2.[30 pts] Perform the following…
D. S. Malik, Data Structures Using C++, 2nd Edition, 2010
Chapter 19 Solutions
DATABASE SYSTEM CONCEPTS LCPO
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