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Answer: B

A bridge connects two separate networks to form a logical
network (e.g., joining an ethernet and token network) and
has the storage capacity to store frames and act as a
storage and forward device. Bridges operate at the OSI data
link layer by examining the media access control header of a
data packet. Routers are switching devices that operate at
the OSI network layer by examining network addresses (i.e.,
routing information encoded in an IP packet). The router, by
examining the IP address, can make intelligent decisions in
directing the packet to its destination. Repeaters amplify
transmission signals to reach remote devices by taking a
signal from a LAN, reconditioning and retiming it, and
sending it to another. This functionality is hardware
encoded and occurs at the OSI physical layer. Gateways
provide access paths to foreign networks.

Without causing a conflict of interest, a duty compatible with those of a security administrator would be: A. quality assurance. B. application programming. C. systems programming. D. data entry.

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Which of the following procedures should be implemented to help ensure the completeness of inbound transactions via electronic data interchange (EDI)? A. Segment counts built into the transaction set trailer B. A log of the number of messages received, periodically verified with the transaction originator C. An electronic audit trail for accountability and tracking D. Matching acknowledgement transactions received to the log of EDI messages sent

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Which of the following is the MOST critical for the successful implementation and maintenance of a security policy? A. Assimilation of the framework and intent of a written security policy by all appropriate parties B. Management support and approval for the implementation and maintenance of a security policy C. Enforcement of security rules by providing punitive actions for any violation of security rules D. Stringent implementation, monitoring and enforcing of rules by the security officer through access control software

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Which of the following functions should be performed by the application owners to ensure an adequate segregation of duties between IS and end users? A. System analysis B. Authorization of access to data C. Application programming D. Data administration

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Which of the following is a measure of the size of an information system based on the number and complexity of a system?s inputs, outputs and files? A. Function point (FP) B. Program evaluation review technique (PERT) C. Rapid application design (RAD) D. Critical path method (CPM)

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The success of control self-assessment (CSA) depends highly on: A. Having line managers assume a portion of the responsibility for control monitoring. B. Assigning staff managers the responsibility for building, but not monitoring, controls. C. The implementation of stringent control policy and rule- driven controls. D. The implementation of supervision and the monitoring of control assigned duties

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Which of the following testing methods is MOST effective during the initial phases of prototyping? A. System B. Parallel C. Volume D. Top-down

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A TCP/IP-based environment is exposed to the Internet. Which of the following BEST ensures that complete encryption and authentication protocols exist for protecting information while transmitted? A. Work is completed in tunnel mode with IP security using the nested services of authentication header (AH) and encapsulating security payload (ESP). B. A digital signature with RSA has been implemented. C. Digital certificates with RSA are being used. D. Work is being completed in TCP services.

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An organization is considering connecting a critical PC-based system to the Internet. Which of the following would provide the BEST protection against hacking? A. An application-level gateway B. A remote access server C. A proxy server D. Port scanning

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An IS steering committee should: A. include a mix of members from different departments and staff levels. B. ensure that IS security policies and procedures have been executed properly. C. have formal terms of reference and maintain minutes of its meetings. D. be briefed about new trends and products at each meeting by a vendor.

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Which of the following would contribute MOST to an effective business continuity plan (BCP)? The BCP: A. document was circulated to all interested parties. B. planning involved all user departments. C. was approved by senior management. D. was audited by an external IS auditor.

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The Primary purpose of audit trails is to

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