Interested to Buy Any Domain ? << Click Here >> for more details...
In an online transaction processing system, data integrity
is maintained by ensuring that a transaction is either
completed in its entirety or not at all. This principle of
data integrity is known as:
A. isolation.
B. consistency.
C. atomicity.
D. durability.
- 2 Answers
- 9806 Views
- I also Faced
- E-Mail Answers
Answers were Sorted based on User's Feedback
Answer / guest
Answer: C
The principle of atomicity requires that a transaction be
completed in its entirety or not at all. If an error or
interruption occurs, all changes made up to that point are
backed out. Consistency ensures that all integrity
conditions in the database be maintained with each
transaction. Isolation ensures that each transaction is
isolated from other transactions, and hence, each
transaction only accesses data that are part of a consistent
database state. Durability ensures that when a transaction
has been reported back to a user as complete the resultant
changes to the database will survive subsequent hardware or
software failures.
| Is This Answer Correct ? | 6 Yes | 0 No |
During which phase of a system development process should an IS auditor first raise the issue of application controls? A. Construction B. System design C. Acceptance testing D. Functional specification
The rate of change of technology increases the importance of: A. outsourcing the IS function. B. implementing and enforcing good processes. C. hiring personnel willing to make a career within the organization. D. meeting user requirements.
During an audit of a reciprocal disaster recovery agreement between two companies, the IS auditor would be PRIMARILY concerned about: A. the soundness of the impact analysis. B. hardware and software compatibility. C. differences in IS policies and procedures. D. frequency of system testing.
Which of the following IS functions may be performed by the same individual, without compromising on control or violating segregation of duties? A. Job control analyst and applications programmer B. Mainframe operator and system programmer C. Change/problem and quality control administrator D. Applications and system programmer
For which of the following applications would rapid recovery be MOST crucial? A. Point-of-sale system B. Corporate planning C. Regulatory reporting D. Departmental chargeback
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
In a data warehouse, data quality is achieved by: A. cleansing. B. restructuring. C. source data credibility. D. transformation.
Assumptions while planning an IS project involve a high degree of risk because they are: A. based on known constraints. B. based on objective past data. C. a result of lack of information. D. often made by unqualified people.
The feature of a digital signature that ensures the sender cannot later deny generating and sending the message is: A. data integrity. B. authentication. C. nonrepudiation. D. replay protection.
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
An IS auditor should use statistical sampling and not judgmental (nonstatistical) sampling, when: A. the probability of error must be objectively quantified. B. the auditor wants to avoid sampling risk. C. generalized audit software is unavailable. D. the tolerable error rate cannot be determined.
Which of the following data entry controls provides the GREATEST assurance that the data is entered correctly? A. Using key verification B. Segregating the data entry function from data entry verification C. Maintaining a log/record detailing the time, date, employee's initials/user id and progress of various data preparation and verification tasks D. Adding check digits
Cisco Certifications 
