An organization is considering installing a LAN in a site
under construction. If system availability is the main
concern, which of the following topologies is MOST appropriate?
A. Ring
B. Line
C. Star
D. Bus
Answer / guest
Answer: A
A ring or loop topology would enable messages to be rerouted
should the network cabling be severed at any point or a
hardware element fail. With the correct settings in network
hardware, the loss of any link would be invisible to the
users. In line and bus networks, which are essentially the
same thing, terminals are connected to a single cable. If
this cable is severed, all terminals beyond the point of
severance will be unavailable. A star network clusters
terminals around hubs, connected to the server by separate
lines in the form of a star. If any line is severed, all
terminals in the cluster at the end of that line would be
disconnected.
| Is This Answer Correct ? | 2 Yes | 2 No |
As a business process reengineering (BPR) project takes hold it is expected that: A. business priorities will remain stable. B. information technologies will not change. C. the process will improve product, service and profitability. D. input from clients and customers will no longer be necessary.
The PRIMARY objective of a business continuity and disaster recovery plan should be to: A. safeguard critical IS assets. B. provide for continuity of operations. C. minimize the loss to an organization. D. protect human life.
Which of the following is LEAST likely to be contained in a digital certificate for the purposes of verification by a trusted third party (TTP)/certification authority (CA)? A. Name of the TTP/CA B. Public key of the sender C. Name of the public key holder D. Time period for which the key is valid
Which of the following hardware devices relieves the central computer from performing network control, format conversion and message handling tasks? A. Spool B. Cluster controller C. Protocol converter D. Front end processor
Which of the following is a control over database administration activities? A. A database checkpoint to restart processing after a system failure B. Database compression to reduce unused space C. Supervisory review of access logs D. Backup and recovery procedures to ensure database availability
A retail company recently installed data warehousing client software at geographically diverse sites. Due to time zone differences between the sites, updates to the warehouse are not synchronized. Which of the following will be affected the MOST? A. Data availability B. Data completeness C. Data redundancy D. Data inaccuracy
A single digitally signed instruction was given to a financial institution to credit a customer's account. The financial institution received the instruction three times and credited the account three times. Which of the following would be the MOST appropriate control against such multiple credits? A. Encrypting the hash of the payment instruction with the public key of the financial institution. B. Affixing a time stamp to the instruction and using it to check for duplicate payments. C. Encrypting the hash of the payment instruction with the private key of the instructor. D. Affixing a time stamp to the hash of the instruction before being digitally signed by the instructor.
Which of the following imaging technologies captures handwriting from a preprinted form and converts it into an electronic format? A. Magnetic ink character recognition (MICR) B. Intelligent voice recognition (IVR) C. Bar code recognition (BCR) D. Optical character recognition (OCR)
Which of the following is a function of an IS steering committee? A. Monitoring vendor controlled change control and testing B. Ensuring a separation of duties within the information's processing environment C. Approving and monitoring major projects, the status of IS plans and budgets D. Responsible for liaison between the IS department and the end users
Which of the following would BEST support 24/7 availability? A. Daily backup B. Offsite storage C. Mirroring D. Periodic testing
With the help of the security officer, granting access to data is the responsibility of: A. data owners. B. programmers. C. system analysts. D. librarians.
Which of the following should be of MOST concern to an IS auditor? A. Lack of reporting of a successful attack on the network B. Failure to notify police of an attempted intrusion C. Lack of periodic examination of access rights D. Lack of notification to the public of an intrusion