Which of the following is the MOST effective type of
antivirus software?
A. Scanners
B. Active monitors
C. Integrity checkers
D. Vaccines
- 2 Answers
- 19984 Views
- I also Faced
- E-Mail Answers
Answers were Sorted based on User's Feedback
Answer / guest
Answer: C
"Integrity checkers compute a binary number on a known
virus-free program that is then stored in a database file.
The number is called a cyclical redundancy check (CRC). When
that program is called to execute, the checker computes the
CRC on the program about to be executed and compares it to
the number in the database. A match means no infection
a mismatch means that a change in the program has occurred.
A change in the program could mean a virus. Scanners look
for sequences of bits called signatures that are typical of
virus programs. They examine memory, disk boot sectors,
executables and command files for bit patterns that match a
known virus. Scanners, therefore, need to be updated
periodically to remain effective. Active monitors interpret
DOS and ROM basic input-output system (BIOS) calls, looking
for virus-like actions. Active monitors can be annoying
because they cannot distinguish between a user request and a
program or virus request. As a result, users are asked to
confirm actions like formatting a disk or deleting a file or
set of files. Vaccines are known to be good antivirus
software. However, they also need to be updated periodically
to remain effective."
| Is This Answer Correct ? | 12 Yes | 0 No |
In reviewing the IS short-range (tactical) plan, the IS auditor should determine whether: A. there is an integration of IS and business staffs within projects. B. there is a clear definition of the IS mission and vision. C. there is a strategic information technology planning methodology in place. D. the plan correlates business objectives to IS goals and objectives.
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 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
Is it appropriate for an IS auditor from a company that is considering outsourcing its IS processing to request and review a copy of each vendor's business continuity plan? A. Yes, because the IS auditor will evaluate the adequacy of the service bureau's plan and assist his/her company in implementing a complementary plan. B. Yes, because, based on the plan, the IS auditor will evaluate the financial stability of the service bureau and its ability to fulfill the contract. C. No, because the backup to be provided should be specified adequately in the contract. D. No, because the service bureau's business continuity plan is proprietary information.
Which of the following would normally be found in application run manuals? A. Details of source documents B. Error codes and their recovery actions C. Program flowcharts and file definitions D. Change records for the application source code
An organization is experiencing a growing backlog of undeveloped applications. As part of a plan to eliminate this backlog, end-user computing with prototyping, supported by the acquisition of an interactive application generator system is being introduced. Which of the following areas is MOST critical to the ultimate success of this venture? A. Data control B. Systems analysis C. Systems programming D. Application programming
Which of the following types of firewalls would BEST protect a network from an Internet attack? A. Screened subnet firewall B. Application filtering gateway C. Packet filtering router D. Circuit-level gateway
The use of object-oriented design and development techniques would MOST likely: A. facilitate the ability to reuse modules. B. improve system performance. C. enhance control effectiveness. D. speed up the system development life cycle.
Testing the connection of two or more system components that pass information from one area to another is: A. pilot testing. B. parallel testing C. interface testing. D. regression testing.
LANs: A. protect against virus infection. B. protect against improper disclosure of data. C. provide program integrity from unauthorized changes. D. provide central storage for a group of users.
Which of the following situations would increase the likelihood of fraud? A. Application programmers are implementing changes to production programs. B. Application programmers are implementing changes to test programs. C. Operations support staff are implementing changes to batch schedules. D. Database administrators are implementing changes to data structures.
Which of the following procedures would MOST effectively detect the loading of illegal software packages onto a network? A. The use of diskless workstations B. Periodic checking of hard drives C. The use of current antivirus software D. Policies that result in instant dismissal if violated
Cisco Certifications 
