The act that describes a computer intruder capturing a
stream of data packets and inserting these packets into the
network as if it were another genuine message stream is called:
A. eavesdropping.
B. message modification.
C. a brute-force attack.
D. packet replay.
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Answer: D
Packet replay is a combination of passive and active modes
of attack. This form of attack is particularly effective
when the receiving end of the communication channel is
automated and acts on the receipt and interpretation of
information packets without human intervention.
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Which of the following provides the GREATEST assurance of message authenticity? A. The pre-hash code is derived mathematically from the message being sent. B. The pre-hash code is encrypted using the sender's private key. C. Encryption of the pre-hash code and the message using the secret key. D. Sender attains the recipient's public key and verifies the authenticity of its digital certificate with a certificate authority.
LANs: A. protect against virus infection. B. protect against improper disclosure of data. C. provide program integrity from unauthorized changes. D. provide central storage for a group of users.
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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.
Which of the following is the BEST audit procedure to determine if a firewall is configured in compliance with an organization's security policy? A. Review the parameter settings B. Interview the firewall administrator C. Review the actual procedures D. Review the device's log file for recent attacks
The document used by the top management of organizations to delegate authority to the IS audit function is the: A. long-term audit plan. B. audit charter. C. audit planning methodology. D. steering committee minutes.
Which of the following is a role of an IS steering committee? A. Initiate computer applications. B. Ensure efficient use of data processing resources. C. Prepare and monitor system implementation plans. D. Review the performance of the systems department.
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 applet intrusion issues poses the GREATEST risk of disruption to an organization? A. A program that deposits a virus on a client machine B. Applets recording keystrokes and, therefore, passwords C. Downloaded code that reads files on a client's hard drive D. Applets opening connections from the client machine
When performing a review of the structure of an electronic funds transfer (EFT) system, an IS auditor observes that the technological infrastructure is based on a centralized processing scheme that has been outsourced to a provider in another country. Based on this information, which of the following conclusions should be the main concern of the IS auditor? A. There could be a question with regards to the legal jurisdiction. B. Having a provider abroad will cause excesive costs in future audits. C. The auditing process will be difficult because of the distances. D. There could be different auditing norms.
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
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
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