Essentials of MIS (12th Edition)
12th Edition
ISBN: 9780134238241
Author: Kenneth C. Laudon, Jane P. Laudon
Publisher: PEARSON
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Chapter 5, Problem 17MLM
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Characteristics of cloud computing:
- The general characteristics of cloud computing are:
- On-demand self-service:
- The customer or the subscriber of the cloud, without communicating to the human from the cloud provider, can increase or decrease the computing requirements on demand.
- The computing requirements are server, network storage, and software applications.
- Broad network access:
- The broad network access is an important component of cloud computing.
- The services provided by the cloud provider must be accessible over the network from any location and any standardized platform.
- Resource pooling:
- Resource pooling is the ability to provide the services to multiple subscribers for their need at the same time.
- The resources are assigned at the time of subscribers’ login and it will be changed dynamically based on their needs.
- The subscribers are unaware of the location of resource where the reassignment is done.
- Maintaining, upgrading, and administrating the hosts contributed to the cloud is a burden of the cloud provider.
- Rapid elasticity:
- This refers to the ability to provide increased computing resources in peak hours without the worry of system overload and additional hardware requirements...
- On-demand self-service:
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Students have asked these similar questions
Consider the following sequential circuit:
CLOCK
a. Define the diagram circuit variables (5 pts)
b. Derive the Flip-Flop input equations) (5 pts)
c. Derive the circuit output equation (5 pts)
d. Derive the state table of the circuit (5 pts)
e. Derive the state diagram for this circuit (5 pts)
Clk
A
D
B
B'
CIK
Question 2 (25 pts)
A sequential circuit with two D flip-flops A and B, two inputs x and y, and one output z is
specified by the following next-state and output equations:
A(t + 1) = xy' + xB
B(t + 1) = xA + xB'
z = A
a. Draw the logic diagram of the circuit. (5 pts)
b. List the state table for the sequential circuit. (10 pts)
c. Draw the corresponding state diagram. (10 pts)
5. Word FrequencyWrite a program that reads the contents of a text file. The program should create a dictio-nary in which the keys are the individual words found in the file and the values are the number of times each word appears. For example, if the word “the” appears 128 times, the dictionary would contain an element with 'the' as the key and 128 as the value. The program should either display the frequency of each word or create a second file containing a list of each word and its frequency.
3.) File Encryption and DecryptionWrite a program that uses a dictionary to assign “codes” to each letter of the alphabet. For example:
codes = { ‘A’ : ‘%’, ‘a’ : ‘9’, ‘B’ : ‘@’, ‘b’ : ‘#’, etc . . .}Using this example, the letter A would be assigned the symbol %, the letter a would be assigned the number 9, the letter B would be assigned the symbol @, and so forth.
The program should open a specified text file, read its contents, then use the dictionary to write an encrypted version of the file’s contents to a second file. Each character in the second file should contain the code for the corresponding character in the first file.
Write a second program that opens an encrypted file and displays its decrypted contents on the screen.
Chapter 5 Solutions
Essentials of MIS (12th Edition)
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