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Which of the following can identify attacks and penetration
attempts to a network?
A. Firewall
B. Packet filters
C. Stateful inspection
D. Intrusion detection system (IDs)
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Answer: D
An IDS has a large database of attack signatures, which is
used to ward off attacks. Packet filter and stateful
inspection are types of firewalls. A firewall is a fence
around a network designed to block certain types of
communications routed or passing through specific ports. It
is not designed to discover someone bypassing or going under
the firewall.
| Is This Answer Correct ? | 6 Yes | 0 No |
Which of the following is the operating system mode in which all instructions can be executed? A. Problem B. Interrupt C. Supervisor D. Standard processing
Sign-on procedures include the creation of a unique user ID and password. However, an IS auditor discovers that in many cases the user name and password are the same. The BEST control to mitigate this risk is to: A. change the company's security policy. B. educate users about the risk of weak passwords. C. build in validations to prevent this during user creation and password change. D. require a periodic review of matching user ID and passwords for detection and correction.
Which of the following is critical to the selection and acquisition of the correct operating system software? A. Competitive bids B. User department approval C. Hardware-configuration analysis D. Purchasing department approval
Which of the following duties would be a concern if performed along with systems administration? A. Maintenance of access rules B. Review of system audit trail C. Data librarian D. Performance monitoring
An IS auditor evaluating data integrity in a transaction driven system environment should review atomicity, to determine whether: A. the database survives failures (hardware or software). B. each transaction is separated from other transactions. C. integrity conditions are maintained. D. a transaction is completed or not, or a database is updated or not.
Disaster recovery planning for a company's computer system usually focuses on: A. operations turnover procedures. B. strategic long-range planning. C. the probability that a disaster will occur. D. alternative procedures to process transactions.
A primary reason for an IS auditor's involvement in the development of a new application system is to ensure that: A. adequate controls are built into the system. B. user requirements are satisfied by the system. C. sufficient hardware is available to process the system. D. data are being developed for pre-implementation testing of the system.
Authentication is the process by which the: A. system verifies that the user is entitled to input the transaction requested. B. system verifies the identity of the user. C. user identifies himself to the system. D. user indicates to the system that the transaction was processed correctly.
A digital signature contains a message digest to: A. show if the message has been altered after transmission. B. define the encryption algorithm. C. confirm the identity of the originator. D. enable message transmission in a digital format.
During an audit of a telecommunications system the IS auditor finds that the risk of intercepting data transmitted to and from remote sites is very high. The MOST effective control for reducing this exposure is: A. encryption. B. callback modems. C. message authentication. D. dedicated leased lines.
Large-scale systems development efforts: A. are not affected by the use of prototyping tools. B. can be carried out independent of other organizational practices. C. require that business requirements be defined before the project begins. D. require that project phases and deliverables be defined during the duration of the project.
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.
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