Deck 8: Securing Information Systems

Question 1

Viruses can be spread through e-mail.

Answer 1

True

Question 2

Zero defects cannot be achieved in larger software programs because fully testing programs that contain thousands of choices and millions of paths would require thousands of years.

Answer 2

True

Question 3

One form of spoofing involves forging the return address on an e-mail so that the e-mail message appears to come from someone other than the sender.

Answer 3

True

Question 4

SSL is a protocol used to establish a secure connection between two computers.

Question 5

Public key encryption uses two keys.

Question 6

In addition to e-mail, instant messages and P2P file-sharing can also pose security threats to computer systems and networks.

Question 7

The range of Wi-Fi networks can be extended up to two miles by using external antennae.

Question 8

Computers using cable modems to connect to the Internet are more open to penetration than those connecting via dial-up.

Question 9

NAT conceals the IP addresses of the organization's internal host computers to deter sniffer programs.

Question 10

High-availability computing is also referred to as fault tolerance.

Question 11

Both software metrics and software testing are techniques used to improve software quality.

Question 12

The WEP specification calls for an access point and its users to share the same 40-bit encrypted password.

Question 13

Wireless networks are vulnerable to penetration because radio frequency bands are easy to scan.

Question 14

Sniffers enable hackers to steal proprietary information from anywhere on a network, including e-mail messages, company files, and confidential reports.

Question 15

An acceptable use policy defines the acceptable level of access to information assets for different users.

Question 16

DoS attacks are used to destroy information and access restricted areas of a company's information system.

Question 17

Computer worms spread much more rapidly than computer viruses.

Question 18

DoS attacks are one of the most economically damaging kinds of computer crime.

Question 19

Biometric authentication is the use of physical characteristics such as retinal images to provide identification.

Question 20

Packet filtering catches most types of network attacks.

Question 21

Which of the following is not an example of a computer used as a target of crime?

A) knowingly accessing a protected computer to commit fraud
B) accessing a computer system without authority
C) illegally accessing stored electronic communication
D) threatening to cause damage to a protected computer

Question 22

Inputting data into a poorly programmed Web form in order to disrupt a company's systems and networks is called

A) a Trojan horse.
B) an SQL injection attack.
C) key logging.
D) a DDoS attack.

Question 23

A keylogger is a type of

A) worm.
B) Trojan horse.
C) virus.
D) spyware.

Question 24

________ refers to policies, procedures, and technical measures used to prevent unauthorized access, alternation, theft, or physical damage to information systems.

A) "Security"
B) "Controls"
C) "Benchmarking"
D) "Algorithms"

Question 25

Using numerous computers to inundate and overwhelm the network from numerous launch points is called a ________ attack.

A) DDoS
B) DoS
C) SQL injection
D) phishing

Question 26

Hackers create a botnet by

A) infecting Web search bots with malware.
B) by using Web search bots to infect other computers.
C) by causing other people's computers to become "zombie" PCs following a master computer.
D) by infecting corporate servers with "zombie" Trojan horses that allow undetected access through a back door.

Question 27

Electronic data are more susceptible to destruction, fraud, error, and misuse because information systems concentrate data in computer files that

A) are usually bound up in legacy systems that are difficult to access and difficult to correct in case of error.
B) are not secure because the technology to secure them did not exist at the time the files were created.
C) have the potential to be accessed by large numbers of people and by groups outside of the organization.
D) are frequently available on the Internet.

Question 28

Which of the following does not pose a security threat to wireless networks?

A) broadcasted SSIDs
B) scannability of radio frequency bands
C) SQL injection attacks
D) geographic range of wireless signals

Question 29

Sniffing is a security challenge that is most likely to occur in which of the following points of a corporate network?

A) client computer
B) communications lines
C) corporate servers
D) internal corporate back-end system

Question 30

________ refers to all of the methods, policies, and organizational procedures that ensure the safety of the organization's assets, the accuracy and reliability of its accounting records, and operational adherence to management standards.

A) "Legacy systems"
B) "SSID standards"
C) "Vulnerabilities"
D) "Controls"

Question 31

In 2004, ICQ users were enticed by a sales message from a supposed anti-virus vendor. On the vendor's site, a small program called Mitglieder was downloaded to the user's machine. The program enabled outsiders to infiltrate the user's machine. What type of malware is this an example of?

A) Trojan horse
B) virus
C) worm
D) spyware

Question 32

Redirecting a Web link to a different address is a form of

A) snooping.
B) spoofing.
C) sniffing.
D) war driving.

Question 33

Unauthorized access is a security challenge that is most likely to occur in which of the following points of a corporate network?

A) client computer
B) communications lines
C) corporate server
D) internal corporate back-end system

Question 34

Phishing is a form of

A) spoofing.
B) logging.
C) sniffing.
D) driving.

Question 35

An independent computer program that copies itself from one computer to another over a network is called a

A) worm.
B) Trojan horse.
C) bug.
D) pest.

Question 36

The Internet poses specific security problems because

A) it was designed to be easily accessible.
B) Internet data is not run over secure lines.
C) Internet standards are universal.
D) it changes so rapidly.

Question 37

A salesperson clicks repeatedly on the online ads of a competitor in order to drive the competitor's advertising costs up. This is an example of

A) phishing.
B) pharming.
C) spoofing.
D) click fraud.

Question 38

Which of the following is not an example of a computer used as an instrument of crime?

A) theft of trade secrets
B) intentionally attempting to intercept electronic communication
C) unauthorized copying of software
D) breaching the confidentiality of protected computerized data

Question 39

An example of phishing is

A) setting up a bogus Wi-Fi hot spot.
B) setting up a fake medical Web site that asks users for confidential information.
C) pretending to be a utility company's employee in order to garner information from that company about their security system.
D) sending bulk e-mail that asks for financial aid under a False pretext.

Question 40

Which of the following statements about the Internet security is not True?

A) The use of P2P networks can expose a corporate computer to outsiders.
B) A corporate network without access to the Internet is more secure than one provides access.
C) VoIP is more secure than the switched voice network.
D) Instant messaging can provide hackers access to an otherwise secure network.

Question 41

Application controls

A) can be classified as input controls, processing controls, and output controls.
B) govern the design, security, and use of computer programs and the security of data files in general throughout the organization.
C) apply to all computerized applications and consist of a combination of hardware, software, and manual procedures that create an overall control environment.
D) include software controls, computer operations controls, and implementation controls.

Question 42

The HIPAA Act of 1997

A) requires financial institutions to ensure the security of customer data.
B) specifies best practices in information systems security and control.
C) imposes responsibility on companies and management to safeguard the accuracy of financial information.
D) outlines medical security and privacy rules.

Question 43

A(n) ________ system is used to identify and authorize different categories of system users and specify which portions of the organization's systems each user can access.

A) identity management
B) AUP
C) authentication
D) firewall

Question 44

An authentication token is a(n)

A) device the size of a credit card that contains access permission data.
B) type of smart card.
C) gadget that displays passcodes.
D) electronic marker attached to a digital authorization file.

Question 45

A firewall allows the organization to

A) prevent unauthorized communication both into and out of the network.
B) monitor network hot spots for signs of intruders.
C) prevent known spyware and malware from entering the system.
D) all of the above.

Question 46

Pharming involves

A) redirecting users to a fraudulent Web site even when the user has typed in the correct address in the Web browser.
B) pretending to be a legitimate business's representative in order to garner information about a security system.
C) setting up fake Web sites to ask users for confidential information.
D) using e-mails for threats or harassment.

Question 47

You have been hired as a security consultant for a law firm. Which of the following constitutes the greatest source of security threats to the firm?

A) wireless network
B) employees
C) authentication procedures
D) lack of data encryption

Question 48

The Gramm-Leach-Bliley Act

A) requires financial institutions to ensure the security of customer data.
B) specifies best practices in information systems security and control.
C) imposes responsibility on companies and management to safeguard the accuracy of financial information.
D) outlines medical security and privacy rules.

Question 49

In which technique are network communications are analyzed to see whether packets are part of an ongoing dialogue between a sender and a receiver?

A) stateful inspection
B) intrusion detection system
C) application proxy filtering
D) packet filtering

Question 50

Evil twins are

A) Trojan horses that appears to the user to be a legitimate commercial software application.
B) e-mail messages that mimic the e-mail messages of a legitimate business.
C) fraudulent Web sites that mimic a legitimate business's Web site.
D) bogus wireless network access points that look legitimate to users.

Question 51

Rigorous password systems

A) are one of the most effective security tools.
B) may hinder employee productivity.
C) are costly to implement.
D) are often disregarded by employees.

Question 52

Which of the following is not a trait used for identification in biometric systems?

A) retinal image
B) voice
C) hair color
D) face

Question 53

Tricking employees to reveal their passwords by pretending to be a legitimate member of a company is called

A) sniffing.
B) social engineering.
C) phishing.
D) pharming.

Question 54

How do software vendors correct flaws in their software after it has been distributed?

A) issue bug fixes
B) issue patches
C) re-release software
D) issue updated versions

Question 55

The Sarbanes-Oxley Act

A) requires financial institutions to ensure the security of customer data.
B) specifies best practices in information systems security and control.
C) imposes responsibility on companies and management to safeguard the accuracy of financial information.
D) outlines medical security and privacy rules.

Question 56

The most common type of electronic evidence is

A) voice mail.
B) spreadsheets.
C) instant messages.
D) e-mail.

Question 57

Analysis of an information system that rates the likelihood of a security incident occurring and its cost is included in a(n)

A) security policy.
B) AUP.
C) risk assessment.
D) business impact analysis.

Question 58

Which of the following is not one of the main firewall screening techniques?

A) application proxy filtering
B) static packet filtering
C) NAT
D) secure socket filtering

Question 59

________ controls ensure that valuable business data files on either disk or tape are not subject to unauthorized access, change, or destruction while they are in use or in storage.

A) Software
B) Administrative
C) Data security
D) Implementation

Question 60

Electronic evidence on computer storage media that is not visible to the average user is called ________ data.

A) defragmented
B) ambient
C) forensic
D) fragmented

Question 61

Malicious software programs referred to as ________ include a variety of threats such as computer viruses, worms, and Trojan horses.

Question 62

PKI is the use of public key cryptography working with a(n) ________.

Question 63

In controlling network traffic to minimize slow-downs, a technology called ________ is used to examine data files and sort low-priority data from high-priority data.

A) high availability computing
B) deep-packet inspection
C) application proxy filtering
D) stateful inspection

Question 64

Downtime refers to periods of time in which a

A) computer system is malfunctioning.
B) computer system is not operational.
C) company or organization is not operational.
D) computer is not online.

Question 65

When errors are discovered in software programs, the sources of the errors are found and eliminated through a process called ________.

Question 66

For 100% availability, online transaction processing requires

A) high-capacity storage.
B) a multi-tier server network.
C) fault-tolerant computer systems.
D) dedicated phone lines.

Question 67

Most antivirus software is effective against

A) only those viruses active on the Internet and through e-mail.
B) any virus.
C) any virus except those in wireless communications applications.
D) only those viruses already known when the software is written.

Question 68

________ use scanning software to look for known problems such as bad passwords, the removal of important files, security attacks in progress, and system administration errors.

A) Stateful inspections
B) Intrusion detection systems
C) Application proxy filtering technologies
D) Packet filtering technologies

Question 69

The development and use of methods to make computer systems resume their activities more quickly after mishaps is called

A) high availability computing.
B) recovery oriented computing.
C) fault tolerant computing.
D) disaster recovery planning.

Question 70

Currently, the protocols used for secure information transfer over the Internet are

A) TCP/IP and SSL.
B) S-HTTP and CA.
C) HTTP and TCP/IP.
D) SSL, TLS, and S-HTTP.

Question 71

On the whole, ________ controls apply to all computerized applications and consist of a combination of hardware, software, and manual procedures that create an overall control environment.

Question 72

A practice in which eavesdroppers drive by buildings or park outside and try to intercept wireless network traffic is referred to as ________.

Question 73

Smaller firms may outsource some or many security functions to

A) ISPs.
B) MISs.
C) MSSPs.
D) CAs.

Question 74

Comprehensive security management products, with tools for firewalls, VPNs, intrusion detection systems, and more, are called ________ systems.

Question 75

A digital certificate system

A) uses third-party CAs to validate a user's identity.
B) uses digital signatures to validate a user's identity.
C) uses tokens to validate a user's identity.
D) is used primarily by individuals for personal correspondence.

Question 76

________ refers to the ability to know that a person is who he or she claims to be.

Question 77

________ is the scientific collection, examination, authentication, preservation, and analysis of data held on or retrieved from computer storage media in such a way that the information can be used as evidence in a court of law.

Question 78

________ is a crime in which an imposter obtains key pieces of personal information to impersonate someone else.

Question 79

In which method of encryption is a single encryption key sent to the receiver so both sender and receiver share the same key?

A) SSL
B) symmetric key encryption
C) public key encryption
D) private key encryption

Question 80

A(n) ________ examines the firm's overall security environment as well as the controls governing individual information systems.