C How to Program (8th Edition)
8th Edition
ISBN: 9780133976892
Author: Paul J. Deitel, Harvey Deitel
Publisher: PEARSON
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Textbook Question
Chapter 1, Problem 1.17MD
(2010 “Flash Crash”) An example of the consequences of our excessive dependence on computers was the so-called “flash crash” which occurred on May 6, 2010, when the U.S. stock market fell precipitously in a matter of minutes, wiping out trillions of dollars of investments, and then recovered within minutes. Research online the causes of this crash and discuss the issues it raises.
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Mention whether the followings are true or false,
if false then re-write true answer
i) Erasure of a program or data file is an example of interception.
ii) Malware can modify hidden and read-only files.
iii) Speed of worms is less than viruses.
iv) Malware can infect any platform.
v) Illicit copying of a program or data files is an example of interruption
vi) Time bomb is a type of logic bomb that activates at a specified date/time.
vii) Malware can’t infect software that runs hardware.
viii) A virus or worm that replicates itself without limit to exhaust systemresources is known as trapdoor.
* Why security of computers is important?
Computer science
In terms of encryption, what is the difference between file encryption and disc encryption?
Chapter 1 Solutions
C How to Program (8th Edition)
Ch. 1 - Categorize each of the following items as either...Ch. 1 - Fill in the blanks in each of the following...Ch. 1 - Prob. 1.6ECh. 1 - Prob. 1.7ECh. 1 - Prob. 1.8ECh. 1 - (Internet Negatives) Besides their numerous...Ch. 1 - Prob. 1.10ECh. 1 - (Test-Drive: Body Mass Index Calculator) Obesity...Ch. 1 - Prob. 1.14MDCh. 1 - (Privacy) Some online e-mail services save all...
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- Can you provide specific examples of situations where overfitting could occur?arrow_forwardWhat Punishment for Webcam Spying is Appropriate? Microphones, digital cameras, and webcams have many practical and harmless uses. These technologies also can leave you open to spying. For example, one school district used software, which was supposed to track the school-distributed laptops in case of theft, to take photos and scree captures of students. In another instance, a person noticed that when she gave a customer service rep access to her computer, he turned on her webcam without asking for her permission. Cybercriminals can use spy tools take photos, or record video or audio, without turning on a light or other notification that indicates your camera or microphone is in use. The Flame virus is one way for spy tools to infect your computer. Security experts recommend using a sticker to cover your webcam and inserting a dummy plug in the microphone port when you are not using it. These technologies also allow people to take photos or videos in a public setting and share them…arrow_forwardPlease explain it properlyarrow_forward
- 13arrow_forwardWhat form of security predominated in the early days of computers?arrow_forwardMost software, including operating systems, is not error free when it is first released. Some programs, in fact, contain thousands of problems, called bugs. Software companies regularly release fixes (called patches) to correct known issues with released software. Many hackers and other criminals target these bugs with computer viruses or other attacks, frequently on the day a new vulnerability is announced—called a zero-day attack. Obviously, the acts by these criminals are not ethical, but what responsibility does a software company have to consumers if they are put at risk due to the company’s carelessness or rush to market? What responsibility do consumers have to make sure they keep their computers patched against new vulnerabilities?arrow_forward
- It had no effect on the Symbian, Android, or iPhone operating systems as a result of the method used to delete data.arrow_forwardComputer science: How can integrity of data be controlled in the field?arrow_forwardDirection: Read the scenarios below. In no more than five (5) sentences, discuss their potential consequences and give a prevention technique. Write your answer on a separate sheet of paper. 1. Anna Santos, a system programmer, intentionally placed an error into a program that causes theoperating system to fail and dump certain confidential information to disks and printers. 2. Alvin discovered a new sensitivity analysis public domain program on the Internet. He downloaded the software to his microcomputer at home, then took the application to work and placed it onto his networked personal computer. The program had a virus on it that eventually spread to the company’s mainframe.arrow_forward
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