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
Answer / guest
Answer: A
A screened subnet firewall would provide the best
protection. The screening router can be a commercial router
or a node with routing capabilities and the ability to allow
or avoid traffic between nets or nodes based on addresses,
ports, protocols, interfaces, etc. Application-level
gateways are mediators between two entities that want to
communicate, also known as proxy gateways. The application
level (proxy) works at the application level, not only at a
package level. The screening controls at package level,
addresses, ports, etc. but does not see the contents of the
package. A packet filtering router examines the header of
every packet or data traveling between the Internet and the
corporate network.
| Is This Answer Correct ? | 7 Yes | 0 No |
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.
In a small organization, where segregation of duties is not practical, an employee performs the function of computer operator and application programmer. Which of the following controls should the IS auditor recommend? A. Automated logging of changes to development libraries B. Additional staff to provide segregation of duties C. Procedures that verify that only approved program changes are implemented D. Access controls to prevent the operator from making program modifications
Which of the following BEST describes an integrated test facility? A. A technique that enables the IS auditor to test a computer application for the purpose of verifying correct processing B. The utilization of hardware and/or software to review and test the functioning of a computer system C. A method of using special programming options to permit printout of the path through a computer program taken to process a specific transaction D. A procedure for tagging and extending transactions and master records that are used by an IS auditor for tests
The intent of application controls is to ensure that when inaccurate data is entered into the system, the data is: A. accepted and processed. B. accepted and not processed. C. not accepted and not processed. D. not accepted and processed.
The MOST effective method for limiting the damage of an attack by a software virus is: A. software controls. B. policies, standards and procedures. C. logical access controls. D. data communication standards.
Which of the following is MOST important to have provided for in a disaster recovery plan? A. Backup of compiled object programs B. Reciprocal processing agreement C. Phone contact list D. Supply of special forms
During an audit, an IS auditor learns that lengthy and complex passwords are required to reach the network via modem. These passwords were established by an outside provider. The communications software allows users to select a ?remember password? option. What should the IS auditor's PRIMARY recommendation be? A. Disable the save password option and have users record them elsewhere. B. Request that the provider change the dial-in password to a group password. C. Establish and enforce a process to have users change their passwords. D. Allow users to change their passwords to something less complex.
Which of the following would an IS auditor consider to be the MOST helpful when evaluating the effectiveness and adequacy of a computer preventive maintenance program? A. A system downtime log B. Vendors' reliability figures C. Regularly scheduled maintenance log D. A written preventive maintenance schedule
An IS auditor is assigned to perform a post implementation review of an application system. Which of the following situations may have impaired the independence of the IS auditor? The IS auditor: A. implemented a specific control during the development of the application system. B. designed an embedded audit module exclusively for auditing the application system. C. participated as a member of the application system project team, but did not have operational responsibilities. D.provided consulting advice concerning application system best practices.
Which of the following is the BEST way to handle obsolete magnetic tapes before disposing of them? A. Overwriting the tapes B. Initializing the tape labels C. Degaussing the tapes D. Erasing the tapes
The FIRST task an IS auditor should complete when performing an audit in an unfamiliar area is to: A. design the audit programs for each system or function involved. B. develop a set of compliance tests and substantive tests. C. gather background information pertinent to the new audit. D. assign human and economical resources.
The secure socket layer (SSL) protocol addresses the confidentiality of a message through: A. symmetric encryption. B. message authentication code. C. hash function. D. digital signature certificates.