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E-mail message authenticity and confidentiality is BEST
achieved by signing the message using the:
A. sender's private key and encrypting the message using the
receiver's public key.
B. sender's public key and encrypting the message using the
receiver's private key.
C. the receiver's private key and encrypting the message
using the sender's public key.
D. the receiver's public key and encrypting the message
using the sender's private key.
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Answer: A
By signing the message with the sender's private key, the
receiver can verify its authenticity using the sender's
public key. By encrypting the message with the receiver's
public key, only the receiver can decrypt the message using
his/her own private key. The receiver's private key is
confidential, and therefore unknown to the sender. Messages
encrypted using the sender's private key can be read by
anyone (with the sender's public key).
| Is This Answer Correct ? | 9 Yes | 1 No |
The PRIMARY advantage of a continuous audit approach is that it: A. does not require an IS auditor to collect evidence on system reliability while processing is taking place. B. requires the IS auditor to review and follow up immediately on all information collected. C. can improve system security when used in time-sharing environments that process a large number of transactions. D. does not depend on the complexity of an organization's computer systems.
At the end of the testing phase of software development, an IS auditor observes that an intermittent software error has not been corrected. No action has been taken to resolve the error. The IS auditor should: A. report the error as a finding and leave further exploration to the auditee's discretion. B. attempt to resolve the error. C. recommend that problem resolution be escalated. D. ignore the error, as it is not possible to get objective evidence for the software error.
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
Which of the following would BEST provide assurance of the integrity of new staff? A) Background screening B)References C) Bonding D)Qualifications listed on resume
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 intent of application controls is to ensure that when inaccurate data is entered into the system, the data is: A. accepted and processed. B. accepted and not processed. C. not accepted and not processed. D. not accepted and processed.
Which of the following processes describes risk assessment? Risk assessment is: A. subjective. B. objective. C. mathematical. D. statistical.
The BEST overall quantitative measure of the performance of biometric control devices is: A. false rejection rate. B. false acceptance rate. C. equal error rate. D. estimated error rate.
An IS auditor is reviewing the database administration function to ascertain whether adequate provision has been made for controlling data. The IS auditor should determine that the: A. function reports to data processing operations. B. responsibilities of the function are well defined. C. database administrator is a competent systems programmer. D. audit software has the capability of efficiently accessing the database.
An IS auditor reviews an organization chart PRIMARILY for: A. an understanding of workflows. B. investigating various communication channels. C. understanding the responsibilities and authority of individuals. D. investigating the network connected to different employees.
Which of the following is the MOST reasonable option for recovering a noncritical system? A. Warm site B. Mobile site C. Hot site D. Cold site
To determine which users can gain access to the privileged supervisory state, which of the following should an IS auditor review? A. System access log files B. Enabled access control software parameters C. Logs of access control violations D. System configuration files for control options used
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