To prevent unauthorized entry to the data maintained in a
dial-up fast response system, an IS auditor should recommend:
A. online terminals be placed in restricted areas.
B. online terminals be equipped with key locks.
C. ID cards be required to gain access to online terminals.
D. online access be terminated after three unsuccessful
attempts.
Answer / guest
Answer: D
The most appropriate control to prevent unauthorized entry
is to terminate connection after a specified number of
attempts. This will deter access through the guessing of ids
and passwords. The other choices are physical controls,
which are not effective in deterring unauthorized accesses
via the telephone lines.
| Is This Answer Correct ? | 5 Yes | 0 No |
Which of the following represents the GREATEST potential risk in an EDI environment? A. Transaction authorization B. Loss or duplication of EDI transmissions C. Transmission delay D. Deletion or manipulation of transactions prior to or after establishment of application controls
Which of the following BEST provides access control to payroll data being processed on a local server? A. Logging of access to personal information B. Separate password for sensitive transactions C. Software restricts access rules to authorized staff D. System access restricted to business hours
An IS auditor has been assigned to conduct a test that compares job run logs to computer job schedules. Which of the following observations would be of the GREATEST concern to the IS auditor? A. There are a growing number of emergency changes. B. There were instances when some jobs were not completed on time. C. There were instances when some jobs were overridden by computer operators. D. Evidence shows that only scheduled jobs were run.
Which of the following audit procedures would MOST likely be used in an audit of a systems development project? A. Develop test transactions B. Use code comparison utilities C. Develop audit software programs D. Review functional requirements documentation
Which of the following should be included in an organization's IS security policy? A. A list of key IT resources to be secured B. The basis for access authorization C. Identity of sensitive security features D. Relevant software security features
An IS auditor has recently discovered that because of a shortage of skilled operations personnel, the security administrator has agreed to work one late-night shift a month as the senior computer operator. The MOST appropriate course of action for the IS auditor is to: A. advise senior management of the risk involved. B. agree to work with the security officer on these shifts as a form of preventative control. C. develop a computer-assisted audit technique to detect instances of abuses of this arrangement. D. review the system log for each of the late-night shifts to determine whether any irregular actions occurred.
A large chain of shops with EFT at point-of-sale devices has a central communications processor for connecting to the banking network. Which of the following is the BEST disaster recovery plan for the communications processor? A. Offsite storage of daily backups B. Alternative standby processor onsite C. Installation of duplex communication links D. Alternative standby processor at another network node
Which of the following IS functions may be performed by the same individual, without compromising on control or violating segregation of duties? A. Job control analyst and applications programmer B. Mainframe operator and system programmer C. Change/problem and quality control administrator D. Applications and system programmer
Which of the following controls would BEST detect intrusion? A. User ids and user privileges are granted through authorized procedures. B. Automatic logoff is used when a workstation is inactive for a particular period of time. C. Automatic logoff of the system after a specified number of unsuccessful attempts. D. Unsuccessful logon attempts are monitored by the security administrator.
A company has recently upgraded its purchase system to incorporate EDI transmissions. Which of the following controls should be implemented in the EDI interface in order to provide for efficient data mapping? A. Key verification B. One-for-one checking C. Manual recalculations D. Functional acknowledgements
Automated teller machines (ATMs) are a specialized form of a point-of-sale terminal that: A. allows for cash withdrawal and financial deposits only. B. are usually located in populous areas to deter theft or vandalism. C. utilizes protected telecommunication lines for data transmissions. D. must include high levels of logical and physical security.
The knowledge base of an expert system that uses questionnaires to lead the user through a series of choices before a conclusion is reached is known as: A. rules. B. decision trees. C. semantic nets. D. data flow diagrams.