The secure socket layer (SSL) protocol addresses the
confidentiality of a message through:
A. symmetric encryption.
B. message authentication code.
C. hash function.
D. digital signature certificates.
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Answer: A
SSL uses a symmetric key for message encryption. A message
authentication code is used for ensuring data integrity.
Hash function is used for generating a message digest. It
does not use public key encryption for message encryption.
Digital signature certificates are used by SSL for server
authentication.
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The feature of a digital signature that ensures the sender cannot later deny generating and sending the message is: A. data integrity. B. authentication. C. nonrepudiation. D. replay protection.
An IS auditor performing a telecommunication access control review should be concerned PRIMARILY with the: A. maintenance of access logs of usage of various system resources. B. authorization and authentication of the user prior to granting access to system resources. C. adequate protection of stored data on servers by encryption or other means. D. accountability system and the ability to identify any terminal accessing system resources.
As a result of a business process reengineering (BPR) project: A. an IS auditor would be concerned with the key controls that existed in the prior business process and not those in the new process. B. system processes are automated in such a way that there are more manual interventions and manual controls. C. the newly designed business processes usually do not involve changes in the way(s) of doing business. D. advantages usually are realized when the reengineering process appropriately suits the business and risk.
To affix a digital signature to a message, the sender must first create a message digest by applying a cryptographic hashing algorithm against: A. the entire message and thereafter enciphering the message digest using the sender's private key. B. any arbitrary part of the message and thereafter enciphering the message digest using the sender's private key. C. the entire message and thereafter enciphering the message using the sender's private key. D. the entire message and thereafter enciphering the message along with the message digest using the sender's private key.
The technique used to ensure security in virtual private networks (VPNs) is: A. encapsulation. B. wrapping. C. transform. D. encryption.
In a system development project the purpose of the program and procedure development phase is to: A. prepare, test and document all programs and manual procedures. B. document a business or system problem to a level at which management can select a solution. C. prepare a high-level design of a proposed system solution and present reasons for adopting a solution. D. expand the general design of an approved solution so that program and procedure writing can begin.
Which of the following normally would be the MOST reliable evidence for an auditor? A. A confirmation letter received from a third party verifying an account balance B. Assurance from line management that an application is working as designed C. Trend data obtained from World Wide Web (Internet) sources D. Ratio analysis developed by the IS auditor from reports supplied by line management
An advantage of using sanitized live transactions in test data is that: A. all transaction types will be included. B. every error condition is likely to be tested. C. no special routines are required to assess the results. D. test transactions are representative of live processing.
An IS auditor conducting an access controls review in a client-server environment discovers that all printing options are accessible by all users. In this situation, the IS auditor is MOST likely to conclude that: A. exposure is greater since information is available to unauthorized users. B. operating efficiency is enhanced since anyone can print any report, any time. C. operating procedures are more effective since information is easily available. D. user friendliness and flexibility is facilitated since there is a smooth flow of information among users.
Which of the following would an IS auditor consider to be the MOST helpful when evaluating the effectiveness and adequacy of a computer preventive maintenance program? A. A system downtime log B. Vendors' reliability figures C. Regularly scheduled maintenance log D. A written preventive maintenance schedule
The MOST effective method of preventing unauthorized use of data files is: A. automated file entry. B. tape librarian. C. access control software. D. locked library.
Which of the following represents the GREATEST potential risk in an EDI environment? A. Transaction authorization B. Loss or duplication of EDI transmissions C. Transmission delay D. Deletion or manipulation of transactions prior to or after establishment of application controls