An organization is introducing a single sign-on (SSO)
system. Under the SSO system, users will be required to
enter only one user ID and password for access to all
application systems. Under the SSO system, unauthorized access:
A. is less likely.
B. is more likely.
C. will have a greater impact.
D. will have a smaller impact.
Answer / guest
Answer: C
The impact will be greater since the hacker needs to know
only one password to gain access to all systems and can,
therefore, cause greater mischief than if only the password
to one of the systems is known. Less likely would be the
correct answer if the single sign-on system were to be
introduced with a stronger form of authentication, such as a
smart card/challenge response system. There is no indication
that the probability of someone attempting to gain access to
systems after introduction of single sign-on is greater than
before. The impact can only be greater, not smaller, since
the access gained is wider.
| Is This Answer Correct ? | 5 Yes | 2 No |
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Which of the following audit tools is MOST useful to an IS auditor when an audit trail is required? A. Integrated test facility (ITF) B. Continuous and intermittent simulation (CIS) C. Audit hooks D. Snapshots
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Which of the following environmental controls is appropriate to protect computer equipment against short-term reductions in electrical power? A. Power line conditioners B. A surge protective device C. An alternative power supply D. An interruptible power supply
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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.
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 is an implementation risk within the process of decision support systems? A. Management control B. Semistructured dimensions C. Inability to specify purpose and usage patterns D. Changes in decision processes
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