Cisa
1. A benefit of open system architecture is that it:
A. facilitates interoperability.
B. facilitates the integration of proprietary components.
C. will be a basis for volume discounts from equipment vendors.
D. allows for the achievement of more economies of scale for equipment.
ANSWER: A
NOTE: Open systems are those for which suppliers provide components whose interfaces are defined by public standards, thus facilitating interoperability between systems made by different vendors. In contrast, closed system components are built to proprietary standards so that other suppliers ' systems cannot or will not interface with existing systems.
2. An IS auditor discovers that developers have operator access to the command line of a production environment operating system. Which of the following controls would BEST mitigate the risk of undetected and unauthorized program changes to the production environment?
A. Commands typed on the command line are logged
B. Hash keys are calculated periodically for programs and matched against hash keys calculated for the most recent authorized versions of the programs
C. Access to the operating system command line is granted through an access restriction tool with preapproved rights
D. Software development tools and compilers have been removed from the production environment
ANSWER: B
NOTE: The matching of hash keys over time would allow detection of changes to files. Choice A is incorrect because having a log is not a control, reviewing the log is a control. Choice C is incorrect because the access was already granted—it does not matter how. Choice D is wrong because files can be copied to and from the production environment.
3. In the context of effective information security governance, the primary objective of value delivery is to:
A. optimize security investments in support of business objectives.
B. implement a standard set of security practices.
C. institute a standards-based solution.
D. implement a
A. facilitates interoperability.
B. facilitates the integration of proprietary components.
C. will be a basis for volume discounts from equipment vendors.
D. allows for the achievement of more economies of scale for equipment.
ANSWER: A
NOTE: Open systems are those for which suppliers provide components whose interfaces are defined by public standards, thus facilitating interoperability between systems made by different vendors. In contrast, closed system components are built to proprietary standards so that other suppliers ' systems cannot or will not interface with existing systems.
2. An IS auditor discovers that developers have operator access to the command line of a production environment operating system. Which of the following controls would BEST mitigate the risk of undetected and unauthorized program changes to the production environment?
A. Commands typed on the command line are logged
B. Hash keys are calculated periodically for programs and matched against hash keys calculated for the most recent authorized versions of the programs
C. Access to the operating system command line is granted through an access restriction tool with preapproved rights
D. Software development tools and compilers have been removed from the production environment
ANSWER: B
NOTE: The matching of hash keys over time would allow detection of changes to files. Choice A is incorrect because having a log is not a control, reviewing the log is a control. Choice C is incorrect because the access was already granted—it does not matter how. Choice D is wrong because files can be copied to and from the production environment.
3. In the context of effective information security governance, the primary objective of value delivery is to:
A. optimize security investments in support of business objectives.
B. implement a standard set of security practices.
C. institute a standards-based solution.
D. implement a