Interested to Buy Any Domain ? << Click Here >> for more details...
The BEST defense against network eavesdropping is:
A. encryption.
B. moving the defense perimeter outward.
C. reducing the amplitude of the communication signal.
D. masking the signal with noise.
- 1 Answers
- 7485 Views
- I also Faced
- E-Mail Answers
Answer / guest
Answer: A
Encryption is the best choice in this situation and
generally protects information from eavesdroppers. Encrypted
strings, with a discernible pattern, can be captured by a
sniffer. This means that due care should be taken even with
encryption. Moving the defense perimeter outward would
entail additional cost as the security coverage would
enlarge. Reducing the amplitude of the communication signal
would result in attenuation of the signal and the recipient
would not receive the information properly. Masking with
noise would cause signal distortion and therefore distortion
in the information received that is not desirable.
| Is This Answer Correct ? | 11 Yes | 1 No |
Confidential data residing on a PC is BEST protected by: A. a password. B. file encryption. C. removable diskettes. D. a key operated power source.
Which of the following is a management technique that enables organizations to develop strategically important systems faster while reducing development costs and maintaining quality? A. Function point analysis B. Critical path methodology C. Rapid application development D. Program evaluation review technique
An IS auditor discovers that an organization?s business continuity plan provides for an alternate processing site that will accommodate fifty percent of the primary processing capability. Based on this, which of the following actions should the IS auditor take? A. Do nothing, because generally, less than twenty-five percent of all processing is critical to an organization?s survival and the backup capacity, therefore is adequate. B. Identify applications that could be processed at the alternate site and develop manual procedures to backup other processing. C. Ensure that critical applications have been identified and that the alternate site could process all such applications. D. Recommend that the information processing facility arrange for an alternate processing site with the capacity to handle at least seventy-five percent of normal processing.
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.
Of the following, the MAIN purpose for periodically testing offsite backup facilities is to: A. ensure the integrity of the data in the database. B. eliminate the need to develop detailed contingency plans. C. ensure the continued compatibility of the contingency facilities. D. ensure that program and system documentation remains current.
An IS auditor is reviewing a project that is using an agile software development approach. Which of the following should the IS auditor expect to find? A. Use of a capability maturity model (CMM) B. Regular monitoring of task-level progress against schedule C. Extensive use of software development tools to maximize team productivity D. Postiteration reviews that identify lessons learned for future use in the project
An IS auditor evaluates the test results of a modification to a system that deals with payment computation. The auditor finds that 50 percent of the calculations do not match predetermined totals. Which of the following would MOST likely be the next step in the audit? A. Design further tests of the calculations that are in error. B. Identify variables that may have caused the test results to be inaccurate. C. Examine some of the test cases to confirm the results. D. Document the results and prepare a report of findings, conclusions and recommendations.
Which of the following systems or tools can recognize that a credit card transaction is more likely to have resulted from a stolen credit card than from the holder of the credit card? A. Intrusion detection systems B. Data mining techniques C. Firewalls D. Packet filtering routers
The MAJOR concern for an IS auditor when reviewing an organization's business process reengineering (BRP) efforts is: A. cost overrun of the project. B. employees resistance to change. C. key controls may be removed from a business process. D. lack of documentation of new processes.
An IS auditor, performing a review of an application?s controls, discovers a weakness in system software, which could materially impact the application. The IS auditor should: A. Disregard these control weaknesses as a system software review is beyond the scope of this review. B. Conduct a detailed system software review and report the control weaknesses. C. Include in the report a statement that the audit was limited to a review of the application?s controls. D. Review the system software controls as relevant and recommend a detailed system software review.
Which of the following would BEST ensure continuity of a wide area network (WAN) across the organization? A. Built-in alternative routing B. Full system backup taken daily C. A repair contract with a service provider D. A duplicate machine alongside each server
Security administration procedures require read-only access to: A. access control tables. B. security log files. C. logging options. D. user profiles.
Cisco Certifications 
