When using public key encryption to secure data being
transmitted across a network:
A. both the key used to encrypt and decrypt the data are public.
B. the key used to encrypt is private, but the key used to
decrypt the data is public.
C. the key used to encrypt is public, but the key used to
decrypt the data is private.
D. both the key used to encrypt and decrypt the data are
private.
Answer / guest
Answer: C
Public key encryption, also known as asymmetric key
cryptography, uses a public key to encrypt the message and a
private key to decrypt it.
| Is This Answer Correct ? | 10 Yes | 2 No |
The planning and monitoring of computer resources to ensure that they are being used efficiently and effectively is: A. hardware monitoring. B. capacity management. C. network management. D. job scheduling.
An IS auditor has recently discovered that because of a shortage of skilled operations personnel, the security administrator has agreed to work one late-night shift a month as the senior computer operator. The MOST appropriate course of action for the IS auditor is to: A. advise senior management of the risk involved. B. agree to work with the security officer on these shifts as a form of preventative control. C. develop a computer-assisted audit technique to detect instances of abuses of this arrangement. D. review the system log for each of the late-night shifts to determine whether any irregular actions occurred.
Which of the following user profiles should be of MOST concern to the IS auditor, when performing an audit of an EFT system? A. Three users with the ability to capture and verifiy their own messages B. Five users with the ability to capturr and send their own messages C. Five users with the ability to verificy other users and to send of their own messages D. Three users with the ability to capture and verifiy the messages of other users and to send their own messages
A primary function of risk management is the identification of cost-effective controls. In selecting appropriate controls, which of the following methods is best to study the effectiveness of adding various safeguards in reducing vulnerabilities? A. "What if" analysis B. Traditional cost/benefit analysis C. Screening analysis D. A "back-of-the-envelope" analysis
Which of the following is MOST likely to occur when a system development project is in the middle of the programming/coding phase? A. Unit tests B. Stress tests C. Regression tests D. Acceptance tests
To share data in a multivendor network environment, it is essential to implement program-to-program communication. With respect to program-to-program communication features that can be implemented in this environment, which of the following makes implementation and maintenance difficult? A. User isolation B. Controlled remote access C. Transparent remote access D. The network environments
Which of the following encrypt/decrypt steps provides the GREATEST assurance in achieving confidentiality, message integrity and nonrepudiation by either sender or recipient? A. The recipient uses his/her private key to decrypt the secret key. B. The encrypted pre-hash code and the message are encrypted using a secret key. C. The encrypted pre-hash code is derived mathematically from the message to be sent. D. The recipient uses the sender's public key, verified with a certificate authority, to decrypt the pre-hash code.
When conducting an audit of client/server database security, the IS auditor would be MOST concerned about the availability of: A. system utilities. B. application program generators. C. system security documentation. D. access to stored procedures.
During a review of a business continuity plan, an IS auditor noticed that the point at which a situation is declared to be a crisis has not been defined. The MAJOR risk associated with this is that: A. assessment of the situation may be delayed. B. execution of the disaster recovery plan could be impacted. C. notification of the teams might not occur. D. potential crisis recognition might be delayed.
An IS auditor is auditing the controls relating to employee termination. Which of the following is the MOST important aspect to be reviewed? A. The related company staff are notified about the termination B. User ID and passwords of the employee have been deleted C. The details of employee have been removed from active payroll files D. Company property provided to the employee has been returned
Which of the following would provide a mechanism whereby IS management can determine if the activities of the organization have deviated from the planned or expected levels? A. Quality management B. IS assessment methods C. Management principles D. Industry standards/benchmarking
Which of the following provides the framework for designing and developing logical access controls? A. Information systems security policy B. Access control lists C. Password management D. System configuration files