COMPUTER SECURITY AND RISKS

Chapter 10:

 

Computer Security and Risks

by- neeraj  gauttam

+91-9414845123

Multiple Choice:

 

  1. In a survey of more than 500 companies and government agencies, ____________ percent detected computer security breaches.
    1. 20
    2. 75
    3. 85
    4. 99

Answer: C       Reference: The Computer Crime Dossier                                Difficulty: Moderate

  1. The survey showed that these businesses lost more than ____________ due to security breaches.
    1. $100,000 each
    2. $377 million
    3. five employees each
    4. $1 million

Answer: B       Reference: The Computer Crime Dossier                                Difficulty: Moderate

  1. The typical computer criminal is a(n):
    1. young hacker.
    2. trusted employee with no criminal record.
    3. trusted employee with a long, but unknown criminal record.
    4. overseas young cracker.

 

Answer: B       Reference: The Computer Crime Dossier                                Difficulty: Moderate

 

  1. The majority of computer crimes are committed by:
    1. overseas criminals.
    2. young teenage computer geniuses.

Answer: B       Reference: The Computer Crime Dossier                                Difficulty: Moderate

  1. The common name for the crime of stealing passwords is:
    1. identity theft.

Answer: C       Reference: Theft by Computer                                               Difficulty: Moderate

  1. Collecting personal information and effectively posing as another individual is known as the crime of:
    1. identity theft.

Answer: B       Reference: Identity Theft                                                        Difficulty: Easy

  1. Malicious software is known as:

Answer: B       Reference: Software Sabotage: Viruses and Other Malware    Difficulty: Easy

 

  1. A program that performs a useful task while simultaneously allowing destructive acts is a:
    1. Trojan horse.
    2. macro virus.

Answer: B       Reference: Trojan Horses                                                       Difficulty: Moderate

  1. An intentionally disruptive program that spreads from program to program or from disk to disk is known as a:
    1. Trojan horse.
    2. time bomb.
    3. time-related bomb sequence.

Answer: B       Reference: Viruses                                                                  Difficulty: Easy

  1. In 1999, the Melissa virus was a widely publicized:
    1. e-mail virus.
    2. macro virus.
    3. Trojan horse.
    4. Time bomb.

Answer: A       Reference: Viruses                                                                  Difficulty: Challenging

  1. What type of virus uses computer hosts to reproduce itself?
    1. Time bomb
    2. Worm
    3. Melissa virus
    4. Macro virus

Answer: B       Reference: Worms                                                                  Difficulty: Moderate

 

  1. The thing that eventually terminates a worm virus is a lack of:
    1. memory or disk space.
    2. CD drive space.
    3. CD-RW.

Answer: A       Reference: Worms                                                                  Difficulty: Moderate

  1. When a logic bomb is activated by a time-related event, it is known as a:
    1. time-related bomb sequence.
    2. time bomb.
    3. Trojan horse.

Answer: C       Reference: Trojan Horses                                                       Difficulty: Easy

  1. A logic bomb that was created to erupt on Michelangelo’s birthday is an example of a:
    1. time-related bomb sequence.
    2. time bomb.
    3. Trojan horse.

Answer: C       Reference: Trojan Horses                                                       Difficulty: Moderate

  1. What is the name of an application program that gathers user information and sends it to someone through the Internet?
    1. A virus
    2. Spybot
    3. Logic bomb
    4. Security patch

Answer: B       Reference: Spyware                                                                            Difficulty: Moderate

 

  1. Standardization of Microsoft programs and the Windows operating system has made the spread of viruses:
    1. more complicated.
    2. more difficult.

Answer: C       Reference: Virus Wars                                                                        Difficulty: Easy

  1. HTML viruses infect:
    1. your computer.
    2. a Web page in the HTML code.
    3. both a Web page and the computer that is viewing it.
    4. None of these answers is correct.

Answer: B       Reference: Virus Wars                                                                        Difficulty: Moderate

  1. Software programs that close potential security breaches in an operating system are known as:
    1. security breach fixes.
    2. refresh patches.
    3. security repairs.
    4. security patches.

 

Answer: D      Reference: Virus Wars                                                                        Difficulty: Moderate

  1. When customers of a Web site are unable to access it due to a bombardment of fake traffic, it is known as:
    1. a virus.
    2. a Trojan horse.
    3. a denial of service attack.

Answer: D       Reference: Hacking and Electronic Trespassing                                  Difficulty: Easy

 

 

  1. ___________ is the measurement of things such as fingerprints and retinal scans used for security access.
    1. Biometrics
    2. Biomeasurement
    3. Computer security
    4. Smart weapon machinery

Answer: A       Reference: Physical Access Restrictions                                             Difficulty: Moderate

  1. What is the most common tool used to restrict access to a computer system?
    1. User logins
    2. Passwords
    3. Computer keys
    4. Access-control software

Answer: B       Reference: Passwords                                                             Difficulty: Moderate

  1. The most common passwords in the S. or Britain include all EXCEPT:

Answer: D       Reference: Passwords                                                             Difficulty: Challenging

  1. Hardware or software designed to guard against unauthorized access to a computer network is known as a(n):
    1. hacker-proof program.
    2. hacker-resistant server.
    3. encryption safe wall.

Answer: B       Reference: Firewalls, Encryption, and Audits                         Difficulty: Easy

 

 

  1. The scrambling of code is known as:
    1. a firewall.
    2. password-proofing.

Answer: A       Reference: Firewalls, Encryption, and Audits                         Difficulty: Moderate

  1. If you want to secure a message, use a(n):
    1. cryptology source.
    2. encryption key.
    3. encryption software package.

Answer: D      Reference: How It Works: 10.2 Cryptography                       Difficulty: Moderate

  1. To prevent the loss of data during power failures, use a(n):
    1. encryption program.
    2. surge protector.

Answer: D       Reference: Backups and Other Precautions                            Difficulty: Moderate

  1. A(n) ____________ can shield electronic equipment from power spikes.
    1. encryption program
    2. surge protector
    3. firewall
    4. UPS

Answer: B       Reference: Backups and Other Precautions                            Difficulty: Moderate

 

 

  1. All of these are suggestions for safe computing EXCEPT:
    1. don’t borrow disks from other people.
    2. open all e-mail messages but open them slowly.
    3. download shareware and freeware with caution.
    4. disinfect your system.

Answer: B       Reference: Working Wisdom: Safe Computing                                   Difficulty: Easy

  1. Freeware ___________ encrypts data.
    1. encryption
    2. firewall software
    3. PGP
    4. private and public keys

Answer: C       Reference: Working Wisdom: Safe Computing                                   Difficulty: Moderate

  1. ____________ is defined as any crime completed through the use of computer technology.
    1. Computer forensics
    2. Computer crime
    3. Hacking
    4. Cracking

Answer: B      Reference: The Computer Crime Dossier                                Difficulty: Moderate

  1. Most computer systems rely solely on ___________ for authentication.
    1. logins
    2. passwords
    3. encryption
    4. lock and key

Answer: B       Reference: Human Security Controls: Law, Management, and Ethics     Difficulty: Moderate

 

  1. Creating strong computer security to prevent computer crime usually simultaneously helps protect :
    1. privacy rights.
    2. personal ethics.
    3. the number of cookies downloaded to your personal computer.
    4. personal space.

Answer: A       Reference: When Security Threatens Privacy                         Difficulty: Moderate

  1. Over ___________ was spent by businesses and government to repair problems in regard to Y2K.
    1. 20 million dollars
    2. 100 million dollars
    3. 1 billion dollars
    4. 100 billion dollars

Answer: D      Reference: Bugs and Breakdowns                                           Difficulty: Moderate

  1. What is a complex system that takes on nearly complete responsibility for a task eliminating the need for people, verification, or decision making?
    1. Autonomous system
    2. Missile defense auto-system
    3. Smart weapon
    4. Independent system

Answer: D       Reference: Autonomous System                                             Difficulty: Moderate

  1. Security procedures can:
    1. will eliminate all computer security risk.
    2. reduce but not eliminate risks.
    3. are prohibitively expensive.
    4. are inaccessible for the average home user.

Answer: B       Reference: Is Security Possible?                                             Difficulty: Easy


Fill in the Blank:

 

  1. The field of computer ____________ uses special software to scan hard drives of potential criminal suspects.

Answer: forensics                   Reference: Online Outlaws: Computer Crime             Difficulty: Challenging

  1. Computer ____________ often goes unreported because businesses fear negative publicity.

Answer: crime                         Reference: The Computer Crime Dossier                    Difficulty: Moderate

  1. ____________ connections are the most frequent point of attack for Internet commerce.

Answer: Internet                     Reference: The Computer Crime Dossier                    Difficulty: Easy

  1. ____________ is the most common form of computer crime.

Answer: Theft                         Reference: Theft by Computer                                               Difficulty: Moderate

  1. A survey by eMarketer.com found that ____________ are the most often cited online fraud cases.

Answer: online auctions          Reference: Identity Theft                                            Difficulty: Challenging

  1. Theft of computers is most common for PDAs and ____________ computers.

Answer: notebook                   Reference: Theft by Computer                                               Difficulty: Moderate

  1. When you use a disk in several different computers within the same day, you are taking the chance of contracting a(n) ____________.

Answer: virus                         Reference: Viruses                                                      Difficulty: Easy

  1. A(n) ____________ attaches itself to documents that contain embedded programs that automate tasks.

Answer: macro virus               Reference: Viruses                                                      Difficulty: Moderate

  1. Both viruses and ____________ use computer hosts to replicate.

Answer: worms                       Reference: Worms                                                      Difficulty: Challenging

  1. ____________ programs search for and eliminate viruses.

Answer: Antivirus                   Reference: Virus Wars                                                Difficulty: Easy

  1. A security patch is a software program that closes possible security breaches in the operating system. The cost to the consumer is ____________.

Answer: nothing or free          Reference: Virus Wars                                                Difficulty: Easy

 

  1. ____________ was once the word used for malicious computer wizardry.

Answer: Hackers or hacking   Reference: Hacking and Electronic Trespassing                      Difficulty: Moderate

  1. ____________ refers to electronic trespassing or criminal hacking.

Answer: Cracking                   Reference: Hacking and Electronic Trespassing                      Difficulty: Moderate

  1. DoS stands for ___________.

Answer: denial of service       Reference: Hacking and Electronic Trespassing                      Difficulty: Moderate

  1. DDoS stands for ___________.

Answer: distributed denial of service    Reference: Hacking and Electronic Trespassing       Difficulty: Moderate

  1. ____________ hijack Web pages and redirect users to other sites.

Answer: Webjackers               Reference: Hacking and Electronic Trespassing                      Difficulty: Challenging

  1. ___________ software monitors and records computer transactions.

Answer: Audit-control            Reference: Firewalls, Encryption, and Audits             Difficulty: Challenging

  1. Each individual who uses a public key cryptosystem has ___________ keys.

Answer: two                           Reference: How It Works: 10.2 Cryptography            Difficulty: Easy

  1. PGP stands for ___________.

Answer: Pretty Good Privacy  Reference: Working Wisdom: Safe Computing           Difficulty: Moderate

  1. Most operating systems, including Windows XP, assign each user a unique ___________.

Answer: user identifier or user ID     Reference: Human Security Controls                Difficulty: Moderate

  1. It should now be common knowledge that users should not open ___________ from e-mail recipients that the user does not know.

Answer: attachments               Reference: Crosscurrents: Idiocy Imperils the Web     Difficulty: Moderate


Matching:

  1. Match the acts and centers with their purposes:
  2. Computer Fraud and Abuse Act A. created by Attorney General Janet Reno in 1998
  3. USA Patriot Act B. defines what kinds of communications are legal                                                                                 online

III. Digital Millennium Copyright Act              C.   created in 2001 as a response to the terrorist attacks                                                                                     of September 11, 2001

  1. Telecommunications Act of 1996 D.        provides instant information on crimes and criminals
  2. Communications Decency Act E. declared unconstitutional by the Supreme Court
  3. National Infrastructure Protection Center F.       created as a result of the first headline-making                                          worm

VII. National Crime Information Center          G.  used to arrest a student for writing to crack an                                                                                     Adobe product

Answers: F, C, G, B, E, A, D               Reference: Multiple locations                         Difficulty: Challenging

 

 

  1. Match the following rules of thumb about safe computing with the proper descriptions:
  2. share with care A. be aware of e-mail from what appear to be legitimate                                                                         companies
  3. handle e-mail carefully B.   don’t choose a dictionary word

III. disinfect regularly                          C.   keep your disks in your own computer

  1. take your password seriously D.        copy, copy, copy
  2. if it’s important, back it up E. encrypt
  3. sensitive info over the Internet? F.         use antivirus software

Answers: C, A, F, B, D, E                    Reference: Working Wisdom: Safe Computing          Difficulty: Moderate

 

Leave a Reply

Your email address will not be published. Required fields are marked *