A primary function of risk management is the identification
of cost-effective controls. In selecting appropriate
controls, which of the following methods is best to study
the effectiveness of adding various safeguards in reducing
vulnerabilities?
A. "What if" analysis
B. Traditional cost/benefit analysis
C. Screening analysis
D. A "back-of-the-envelope" analysis
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Answer: A
Choice (A) is the correct answer. With the "what if"
analysis method, the effect of adding various safeguards
(and therefore reducing vulnerabilities) is tested to see
what difference each makes. Trade-offs can then be made
based on the cost of the safeguard and its benefit in terms
of reduced risk. Choice (B) is incorrect. In traditional
cost/benefit analysis, the cost is based on the purchase and
operating costs of safeguards. The benefit is calculated
based on an expected decrease in future losses. Choice (C)
is incorrect. Screening analysis can be used to concentrate
on the highest-risk areas. One method is to examine risks
with very severe consequences, such as a high dollar loss or
loss of life. Choice (D) is incorrect. With "back-of-the
envelope" analysis, a high-medium-low ranking can often
provide all the information needed. However, especially for
the selection of expensive safeguards or the analysis of
systems with unknown consequences, more in-depth analysis
may be warranted.
| Is This Answer Correct ? | 3 Yes | 0 No |
An IS auditor reviewing operating system access discovers that the system is not secured properly. In this situation, the IS auditor is LEAST likely to be concerned that the user might: A. create new users. B. delete database and log files. C. access the system utility tools. D. access the system writeable directories.
During an audit of the tape management system at a data center, an IS auditor discovered that parameters are set to bypass or ignore the labels written on tape header records. The IS auditor also determined that effective staging and job setup procedures were in place. In this situation, the IS auditor should conclude that the: A. tape headers should be manually logged and checked by the operators. B. staging and job setup procedures are not appropriate compensating controls. C. staging and job setup procedures compensate for the tape label control weakness. D. tape management system parameters must be set to check all labels.
A TCP/IP-based environment is exposed to the Internet. Which of the following BEST ensures that complete encryption and authentication protocols exist for protecting information while transmitted? A. Work is completed in tunnel mode with IP security using the nested services of authentication header (AH) and encapsulating security payload (ESP). B. A digital signature with RSA has been implemented. C. Digital certificates with RSA are being used. D. Work is being completed in.TCP services.
Which of the following BEST describes an IT department?s strategic planning process? A. The IT department will have either short-range or long-range plans depending on the organization?s broader plans and objectives. B. The IT department?s strategic plan must be time and project oriented, but not so detailed as to address and help determine priorities to meet business needs. C. Long-range planning for the IT department should recognize organizational goals, technological advances and regulatory requirements. D. Short-range planning for the IT department does not need to be integrated into the short-range plans of the organization since technological advances will drive the IT department plans much quicker than organizational plans.
The feature of a digital signature that ensures the sender cannot later deny generating and sending the message is: A. data integrity. B. authentication. C. nonrepudiation. D. replay protection.
The PKI element that manages the certificate life cycle, including certificate directory maintenance and certificate revocation list (CRL) maintenance and publication is the: A. certificate authority. B. digital certificate. C. certification practice statement. D. registration authority.
Transmitting redundant information with each character or frame to facilitate detection and correction of errors is called: A. feedback error control. B. block sum check. C. forward error control. D. cyclic redundancy check.
An IS auditor needs to link his/her microcomputer to a mainframe system that uses binary synchronous data communications with block data transmission. However, the IS auditor's microcomputer, as presently configured, is capable of only asynchronous ASCII character data communications. Which of the following must be added to the IS auditor's computer to enable it to communicate with the mainframe system? A. Buffer capacity and parallel port B. Network controller and buffer capacity C. Parallel port and protocol conversion D. Protocol conversion and buffer capability
An organization is considering connecting a critical PC-based system to the Internet. Which of the following would provide the BEST protection against hacking? A. An application-level gateway B. A remote access server C. A proxy server D. Port scanning
Which of the following would allow a company to extend it?s enterprise?s intranet across the Internet to it?s business partners? A. Virtual private network B. Client-Server C. Dial-Up access D. Network service provider
Passwords should be: A. assigned by the security administrator. B. changed every 30 days at the discretion of the user. C. reused often to ensure the user does not forget the password. D. displayed on the screen so that the user can ensure that it has been entered properly.
An IS auditor when reviewing a network used for Internet communications, will FIRST examine the: A. validity of passwords change occurrences. B. architecture of the client-server application. C. network architecture and design. D. firewall protection and proxy servers.
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