Software Engineering (10th Edition)
10th Edition
ISBN: 9780133943030
Author: Ian Sommerville
Publisher: PEARSON
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Chapter 13, Problem 13.8E
Program Plan Intro
Secure Systems:
Secure systems are computer system that are protected through the use of hardware and software policies and practices to prevent data corruption, destruction, interception, loss, or unauthorized access by providing integrity, authorization, privacy and authentication.
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The following are true of system hardening EXCEPT:
Answers: A best practice is to start with a complete installation and remove unnecessary packages.
It is the process of locking down a system to protect it and any resources that may reside on it.
It's more difficult to remove software from a complete installation than to start with a minimal installation.
The best approach is to start with a minimal installation and add only software that is absolutely necessary.
The lack of making security a priority from the start of the design process is a major issue in the realm of computer science. The consequences of treating security as an afterthought need only be briefly considered.
When it comes to the design of software systems, performance and security may seem to be non-functional goals that are incompatible with one another. Put out an argument in support of or in opposition to this statement.
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- When is the Best Time to Halt Testing?arrow_forwardA system that always reacts in good time, possibly also with approximate values, is considered to be much more difficult to implement compared to one that always reacts algorithmically precisely, but sometimes reacts by exceeding the permissible times. Please give reasons or refute them.arrow_forwardIn the design of software systems, the non-functional aims of performance and security may seem to be incompatible. Do you agree with this statement or disagree with it?arrow_forward
- End-to-end testing needs to have a clear justification and necessity.arrow_forwardA crucial part of the SDLC process is testing. Is it possible to skip this step in favor of a more formal procedure? Explain the importance of testing in connection to the formal methods being employed in a few short sentences.arrow_forwardAn established strategy is useful. Give instances of different testing techniques.arrow_forward
- create a sequence diagram of the Self-service check-in.arrow_forwardGet a better understanding of the many types of access control methods. The many types of controls accessible in each should be compared and contrasted.arrow_forwardWhen it comes to the design of software systems, it could look as if performance and security are competing priorities that cannot coexist. Explain.arrow_forward
- Quiz 2/III Draw the use case model and write main scenario and extensions for the following: student online registration in a computer college : a student enters his information in the college website and receives a registration code to his email . then login the email to complete the process and get a message that he is being added to the student database if his degrees are under the average the system will redirect the record to another college.arrow_forwardDesign and implement a system that permits recording of course performance information—specifically, the marks given to each student in each assignment or exam of a course, and computation of a (weighted) sum of marks to get the total course marks. The number of assignments/exams should not be predefined; that is, more assignments/exams can be added at any time. The system should also support grading, permitting cutoffs to be specified for variousgrades.arrow_forwardWhen does a system begin to approach a stalemate, which is when there is no more progress that can be done, and what causes this?arrow_forward
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