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 critical and contributes the MOST to the quality of data in a data warehouse? A. Accuracy of the source data B. Credibility of the data source C. Accuracy of the extraction process D. Accuracy of the data transformation
An organization is considering connecting a critical PC-based system to the Internet. Which of the following would provide the BEST protection against hacking? A. An application-level gateway B. A remote access server C. A proxy server D. Port scanning
An IS auditor auditing hardware monitoring procedures should review A. system availability reports. B. cost-benefit reports. C. response time reports. D. database utilization reports.
The PRIMARY objective of an IS audit function is to: A. determine whether everyone uses IS resources according to their job description. B. determine whether information systems safeguard assets, and maintain data integrity. C. examine books of accounts and relative documentary evidence for the computerized system. D. determine the ability of the organization to detect fraud.
Which of the following types of risks assumes an absence of compensating controls in the area being reviewed? A. Control risk B. Detection risk C. Inherent risk D. Sampling risk
Which of the following manages the digital certificate life cycle to ensure adequate security and controls exist in digital signature applications related to e-commerce? A. Registration authority B. Certification authority C. Certification relocation list D. Certification practice statement
A decrease in amplitude as a signal propagates along a transmission medium is known as: A. noise. B. crosstalk. C. attenuation. D. delay distortion.
Failure to adequately define or manage the requirements for a system can result in a number of risks. The GREATEST risk is: A. inadequate user involvement. B. inadequate allocation of resources. C. scope creep. D. an incorrect estimation of the critical path.
Which of the following is a feature of an intrusion detection system (IDS)? A. Gathering evidence on attack attempts B. Identifying weakness in the policy definition C. Blocking access to particular sites on the Internet D. Preventing certain users from accessing specific servers
When implementing an 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
The security level of a private key system depends on the number of: A. encryption key bits. B. messages sent. C. keys. D. channels used.
Which of the following would be a compensating control to mitigate risks resulting from an inadequate segregation of duties? A. Sequence check B. Check digit C. Source documentation retention D. Batch control reconciliations