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A malicious code that changes itself with each file it
infects is called a:
A. logic bomb.
B. stealth virus.
C. trojan horse.
D. polymorphic virus.
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Answer: D
A polymorphic virus has the capability of changing its own
code, enabling it to have many different variants. Since
they have no consistent binary pattern, such viruses are
hard to identify. A logic bomb is code that is hidden in a
program or system which will cause something to happen when
the user performs a certain action or when certain
conditions are met. A logic bomb, which can be downloaded
along with a corrupted shareware or freeware program, may
destroy data, violate system security, or erase the hard
drive. A stealth virus is a virus that hides itself by
intercepting disk access requests. When an antivirus program
tries to read files or boot sectors to find the virus, the
stealth virus feeds the antivirus program a clean image of
the file or boot sector. A trojan horse is a virus program
that appears to be useful and harmless but which has harmful
side effects such as destroying data or breaking the
security of the system on which it is run.
| Is This Answer Correct ? | 8 Yes | 1 No |
The responsibilities of a disaster recovery relocation team include: A. obtaining, packaging and shipping media and records to the recovery facilities, as well as establishing and overseeing an offsite storage schedule. B. locating a recovery site if one has not been predetermined and coordinating the transport of company employees to the recovery site. C. managing the relocation project and conducting a more detailed assessment of the damage to the facilities and equipment. D. coordinating the process of moving from the hot site to a new location or to the restored original location.
An IS auditor should be involved in: A. observing tests of the disaster recovery plan. B. developing the disaster recovery plan. C. maintaining the disaster recovery plan. D. reviewing the disaster recovery requirements of supplier contracts.
Which of the following would an IS auditor consider to be the MOST important to review when conducting a business continuity audit? A. A hot site is contracted for and available as needed. B. A business continuity manual is available and current. C. Insurance coverage is adequate and premiums are current. D. Media backups are performed on a timely basis and stored offsite.
Which of the following is a function of an IS steering committee? A. Monitoring vendor controlled change control and testing B. Ensuring a separation of duties within the information's processing environment C. Approving and monitoring major projects, the status of IS plans and budgets D. Responsible for liaison between the IS department and the end users
Which of the following audit procedures would an IS auditor be LEAST likely to include in a security audit? A. Review the effectiveness and utilization of assets. B. Test to determine that access to assets is adequate. C. Validate physical, environmental and logical access policies per job profiles. D. Evaluate asset safeguards and procedures that prevent unauthorized access to the assets.
Classification of information systems is essential in business continuity planning. Which of the following system types can not be replaced by manual methods? A. Critical system B. Vital system C. Sensitive system D. Non-critical system
When a PC that has been used for the storage of confidential data is sold on the open market the: A. hard disk should be demagnetized. B. hard disk should be mid-level formatted.s C. data on the hard disk should be deleted. D. data on the hard disk should be defragmented.
Which of the following is intended to detect the loss or duplication of input? A. Hash totals B. Check digits C. Echo checks D. Transaction codes
In an audit of a business continuity plan, which of the following findings is of MOST concern? A. There is no insurance for the addition of assets during the year. B. BCP manual is not updated on a regular basis. C. Testing of the backup of data has not been done regularly. D. Records for maintenance of access system have not been maintained.
Which of the following normally would be the MOST reliable evidence for an auditor? A. A confirmation letter received from a third party verifying an account balance B. Assurance from line management that an application is working as designed C. Trend data obtained from World Wide Web (Internet) sources D. Ratio analysis developed by the IS auditor from reports supplied by line management
Software maintainability BEST relates to which of the following software attributes? A. Resources needed to make specified modifications. B. Effort needed to use the system application. C. Relationship between software performance and the resources needed. D. Fulfillment of user needs.
When implementing and application software package, which of the following presents the GREATEST risk? A. Uncontrolled multiple software versions B. Source programs that are not synchronized with object code C. Incorrectly set parameters D. Programming errors
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