A control for a company that wants to prevent virus-infected
programs (or other type of unauthorized modified programs)
would be to:
A. utilize integrity checkers.
B. verify program's lengths.
C. backup the source and object code.
D. implement segregation of duties.
- 2 Answers
- 3610 Views
- I also Faced
- E-Mail Answers
Answers were Sorted based on User's Feedback
Answer / guest
Answer: A
Integrity checkers (such as the ones included in many
antivirus programs or freeware, like tripwire) compute for
each selected program some type of hash, checksum or cyclic
redundancy check (CRC), then store this number in a database
file. Before each execution of the program, the checker
recomputes the hash or checksum and compares it to the value
stored in the database. If the values do not match, the
program is not executed thus detecting a possible virus or
modified program. Verifying a progam's length is not
practical, and some virus do not affect the length of
infected programs. A backup of source and object code does
not help detect a modified program. Segregation of duties is
useful to minimize risk, however, it does not detect a
modified program.
| Is This Answer Correct ? | 3 Yes | 1 No |
When an IS auditor obtains a list of current users with access to a WAN/LAN and verifies that those listed are active associates, the IS auditor is performing a: A. compliance test. B. substantive test. C. statistical sample. D. risk assessment.
The BEST time to perform a control self-assessment involving line management, line staff and the audit department is at the time of: A. compliance testing. B. the preliminary survey. C. substantive testing. D. the preparation of the audit report.
With the help of the security officer, granting access to data is the responsibility of: A. data owners. B. programmers. C. system analysts. D. librarians.
When a systems development life cycle (SDLC) methodology is inadequate, the MOST serious immediate risk is that the new system will: A. be completed late. B. exceed the cost estimates. C. not meet business and user needs. D. be incompatible with existing systems.
Which of the following types of firewalls provide the GREATEST degree and granularity of control? A. Screening router B. Packet filter C. Application gateway D. Circuit gateway
An IS auditor, in evaluating proposed biometric control devices reviews the false rejection rates (FRRs), false acceptance rates (FARs) and equal error rates (ERRs) of three different devices. The IS auditor should recommend acquiring the device having the: A. least ERR. B. most ERR. C. least FRR but most FAR. D. least FAR but most FRR.
Which of the following IT governance best practices improves strategic alignment? A. Supplier and partner risks are managed. B. A knowledge base on customers, products, markets and processes is in place C. A structure is provided that facilitates the creation and sharing of business information. D. Top management mediate between the imperatives of business and technology
Which of the following would an IS auditor expect to find in a console log? A. Names of system users B. Shift supervisor identification C. System errors D. Data edit errors
Which of the following would be included in an IS strategic plan?
An internal audit department, that organizationally reports exclusively to the chief financial officer (CFO) rather than to an audit committee, is MOST likely to: A. have its audit independence questioned. B. report more business-oriented and relevant findings. C. enhance the implementation of the auditor's recommendations. D. result in more effective action being taken on the recommendations.
During a review of a business continuity plan, an IS auditor noticed that the point at which a situation is declared to be a crisis has not been defined. The MAJOR risk associated with this is that: A. assessment of the situation may be delayed. B. execution of the disaster recovery plan could be impacted. C. notification of the teams might not occur. D. potential crisis recognition might be delayed.
When auditing a mainframe operating system, what would the IS auditor do to establish which control features are in operation? A. Examine the parameters used when the system was generated B. Discuss system parameter options with the vendor C. Evaluate the systems documentation and installation guide D. Consult the systems programmers
Cisco Certifications 
