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Which of the following would be MOST appropriate to ensure
the confidentiality of transactions initiated via the Internet?
A. Digital signature
B. Data encryption standard (DES)
C. Virtual private network (VPN)
D. Public key encryption
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Answer: D
Encryption is the only way to ensure Internet transactions
are confidential, and of the choices available, the use of
public key encryption is the best method. Digital signatures
would ensure the transaction is not changed and cannot be
repudiated, but would not ensure confidentiality.
| Is This Answer Correct ? | 10 Yes | 2 No |
In a small organization, an employee performs computer operations and, when the situation demands, program modifications. Which of the following should the IS auditor recommend? A. Automated logging of changes to development libraries B. Additional staff to provide separation of duties C. Procedures that verify that only approved program changes are implemented D. Access controls to prevent the operator from making program modifications
Which of the following tasks is normally performed by a clerk in the control group? A. Maintenance of an error log B. Authorization of transactions C. Control of noninformation systems assets D. Origination of changes to master files
Which of the following would be a compensating control to mitigate risks resulting from an inadequate segregation of duties? A. Sequence check B. Check digit C. Source documentation retention D. Batch control reconciliations
During an audit, an IS auditor learns that lengthy and complex passwords are required to reach the network via modem. These passwords were established by an outside provider. The communications software allows users to select a ?remember password? option. What should the IS auditor's PRIMARY recommendation be? A. Disable the save password option and have users record them elsewhere. B. Request that the provider change the dial-in password to a group password. C. Establish and enforce a process to have users change their passwords. D. Allow users to change their passwords to something less complex.
A tax calculation program maintains several hundred tax rates. The BEST control to ensure that tax rates entered into the program are accurate is: A. an independent review of the transaction listing. B. a programmed edit check to prevent entry of invalid data. C. programmed reasonableness checks with 20 percent data entry range. D. a visual verification of data entered by the processing department.
When reviewing an organization's logical access security, which of the following would be of the MOST concern to an IS auditor? A. Passwords are not shared. B. Password files are encrypted. C. Redundant logon IDs are deleted. D. The allocation of logon IDs is controlled.
Which of the following procedures would BEST determine whether adequate recovery/restart procedures exist? A. Reviewing program code B. Reviewing operations documentation C. Turning off the UPS, then the power D. Reviewing program documentation
During an audit of a telecommunications system the IS auditor finds that the risk of intercepting data transmitted to and from remote sites is very high. The MOST effective control for reducing this exposure is: A. encryption. B. callback modems. C. message authentication. D. dedicated leased lines.
Which of the following would provide a mechanism whereby IS management can determine if the activities of the organization have deviated from the planned or expected levels? A. Quality management B. IS assessment methods C. Management principles D. Industry standards/benchmarking
An IS auditor is assigned to perform a post implementation review of an application system. Which of the following situations may have impaired the independence of the IS auditor? The IS auditor: A. implemented a specific control during the development of the application system. B. designed an embedded audit module exclusively for auditing the application system. C. participated as a member of the application system project team, but did not have operational responsibilities. D.provided consulting advice concerning application system best practices.
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.
When performing an audit of access rights, an IS auditor should be suspicious of which of the following if allocated to a computer operator? A. READ access to data B. DELETE access to transaction data files C. Logged READ/EXECUTE access to programs D. UPDATE access to job control language/script files
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