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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
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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.
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In the course of performing a risk analysis, an IS auditor has identified threats and potential impacts. Next, an IS auditor should: A. identify and assess the risk assessment process used by management. B. identify information assets and the underlying systems. C. disclose the threats and impacts to management. D. identify and evaluate the existing controls.
Which of the following risks would be increased by the installation of a database system? A. Programming errors B. Data entry errors C. Improper file access D. Loss of parity
Which of the following would not prevent the loss of an asset but would assist in recovery by transferring part of the risk to a third party? A. Full system backups B. Insurance C. Testing D. Business impact analysis
A control log basic to a real-time application system is a(n): A. audit log. B. console log. C. terminal log. D. transaction log.
Which of the following is the primary purpose for conducting parallel testing? A. To determine if the system is cost-effective. B. To enable comprehensive unit and system testing. C. To highlight errors in the program interfaces with files. D. To ensure the new system meets user requirements.
Which of the following will help detect changes made by an intruder to the system log of a server? A. Mirroring of the system log on another server B. Simultaneously duplicating the system log on a write-once disk C. Write protecting the directory containing the system log D. Storing the backup of the system log offsite
The use of coding standards is encouraged by IS auditors because they: A. define access control tables. B. detail program documentation. C. standardize dataflow diagram methodology. D. ensure compliance with field naming conventions.
An organization wants to enforce data integrity principles and achieve faster performance/execution in a database application. Which of the following design principles should be applied? A. User (customized) triggers B. Data validation at the front end C. Data validation at the back end D. Referential integrity
Which of the following would an IS auditor consider to be the MOST important when evaluating an organization's IS strategy? That it: A. has been approved by line management. B. does not vary from the IS department's preliminary budget. C. complies with procurement procedures. D. supports the business objectives of the organization.
Which of the following is a control over component communication failure/errors? A. Restricting operator access and maintaining audit trails B. Monitoring and reviewing system engineering activity C. Providing network redundancy D. Establishing physical barriers to the data transmitted over the network
Web and e-mail filtering tools are PRIMARILY valuable to an organization because they: A. Safeguard the organization’s image. B. Maximize employee performance. C. Protect the organization from viruses and nonbusiness materials. D. Assist the organization in preventing legal issues.
An IS auditor's MAJOR concern as a result of reviewing a business process reengineering (BPR) project should be whether the: A. newly designed business process has key controls in place. B. changed process will affect organization structure, finances and personnel. C. roles for suppliers have been redefined. D. process has been documented before and after reengineering.
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