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 is the MOST important reason for an IS auditor to be involved in a system development project? A. Evaluate the efficiency of resource utilization. B. Develop audit programs for subsequent audits of the system. C. Evaluate the selection of hardware to be used by the system. D. Ensure that adequate controls are built into the system during development.
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
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 goals would you expect to find in an organization's strategic plan? A. Test a new accounting package. B. Perform an evaluation of information technology needs. C. Implement a new project planning system within the next 12 months. D. Become the supplier of choice within a given time period for the product offered.
As a business process reengineering (BPR) project takes hold it is expected that: A. business priorities will remain stable. B. information technologies will not change. C. the process will improve product, service and profitability. D. input from clients and customers will no longer be necessary.
Which of the following steps would an IS auditor normally perform FIRST in a data center security review? A. Evaluate physical access test results. B. Determine the risks/threats to the data center site. C. Review business continuity procedures. D. Test for evidence of physical access at suspect locations.
Which of the following is a measure of the size of an information system based on the number and complexity of a system?s inputs, outputs and files? A. Function point (FP) B. Program evaluation review technique (PERT) C. Rapid application design (RAD) D. Critical path method (CPM)
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 would be a MAJOR disadvantage of using prototyping as a systems development methodology? A. User expectations of project timescales may be overly optimistic. B. Effective change control and management is impossible to implement. C. User participation in day-to-day project management may be too extensive. D. Users usually are not sufficiently knowledgeable to assist in system development.
At the end of a simulation of an operational contingency test, the IS auditor performed a review of the recovery process. The IS auditor concluded that the recovery took more than the critical time frame allows. Which of the following actions should the auditor recommend? A. Widen the physical capacity to accomplish better mobility in a shorter time. B. Shorten the distance to reach the hot site. C. Perform an integral review of the recovery tasks. D. Increase the number of human resources involved in the recovery process.
Which of the following functions would be acceptable for the security administrator to perform in addition to his/her normal functions? A. Systems analyst B. Quality assurance C. Computer operator D. Systems programmer
Which of the following BEST describes the early stages of an IS audit? A. Observing key organizational facilities. B. Assessing the IS environment. C. Understanding business process and environment applicable to the review. D. Reviewing prior IS audit reports.