For an online transaction processing system, transactions
per second is a measure of:
A. throughput.
B. response time.
C. turnaround time.
D. uptime.
Answer / guest
Answer: A
"Throughput measures how much work is done by a system over
a period of time
it measures productivity of the system. In an online
transaction processing system, transactions per second is a
throughput index. Response time is defined as the length of
time that elapsed between submission of an input and receipt
of the first character of output in an online system.
Turnaround time is the length of time that elapsed between
submission of a job and receipt of a completed output. It is
a measure of timeliness in a batch system. The percentage of
time that the system is available for processing is called
uptime or a reliability index
thus, this is not the correct answer."
| Is This Answer Correct ? | 6 Yes | 0 No |
An organization has been an Internet user for several years and the business plan now calls for initiating e-commerce via web-based transactions. Which of the following will LEAST impact transactions in e-commerce? A. Encryption is required B. Timed authentication is required C. Firewall architecture hides the internal network D. Traffic is exchanged through the firewall at the application layer only
Which of the following is an example of a passive attack, initiated through the Internet? A. Traffic analysis B. Masquerading C. Denial of service D. E-mail spoofing
An organization provides information to its supply-chain partners and customers through an extranet infrastructure. Which of the following should be the GREATEST concern to an IS auditor reviewing the firewall security architecture? A. A secure socket layer (SSL) has been implemented for user authentication and remote administration of the firewall. B. On the basis of changing requirements, firewall policies are updated. C. Inbound traffic is blocked unless the traffic type and connections have been specifically permitted. D. The firewall is placed on top of the commercial operating system with all installation options.
To identify the value of inventory that has been kept for more than eight weeks, an IS auditor would MOST likely use: A. test data. B. statistical sampling. C. an integrated test facility. D. generalized audit software.
When an employee is terminated from service, the MOST important action is to: A. hand over all of the employee's files to another designated employee. B. take a back up of the employee's work. C. notify other employees of the termination. D. disable the employee's logical access.
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
Receiving an EDI transaction and passing it through the communications interface stage usually requires: A. translating and unbundling transactions. B. routing verification procedures. C. passing data to the appropriate application system. D. creating a point of receipt audit log.
The PRIMARY purpose of audit trails is to: A. improve response time for users. B. establish accountability and responsibility for processed transactions. C. improve the operational efficiency of the system. D. provide useful information to auditors who may wish to track transactions.
During a review of the controls over the process of defining IT service levels, an IS auditor would MOST likely interview the: A. systems programmer. B. legal staff. C. business unit manager. D. application programmer.
The reason for having controls in an IS environment: A. remains unchanged from a manual environment, but the implemented control features may be different. B. changes from a manual environment, therefore the implemented control features may be different. C. changes from a manual environment, but the implemented control features will be the same. D. remains unchanged from a manual environment and the implemented control features will also be the same.
As updates to an online order entry system are processed, the updates are recorded on a transaction tape and a hard-copy transaction log. At the end of the day, the order entry files are backed up on tape. During the backup procedure, a drive malfunctions and the order entry files are lost. Which of the following are necessary to restore these files? A. The previous day's backup file and the current transaction tape B. The previous day's transaction file and the current transaction tape C. The current transaction tape and the current hard-copy transaction log D. The current hard-copy transaction log and the previous day's transaction file
Utility programs that assemble software modules needed to execute a machine instruction application program version are: A. text editors. B. program library managers. C. linkage editors and loaders. D. debuggers and development aids.