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
- 8778 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 |
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 encrypt/decrypt steps provides the GREATEST assurance in achieving confidentiality, message integrity and nonrepudiation by either sender or recipient? A. The recipient uses his/her private key to decrypt the secret key. B. The encrypted pre-hash code and the message are encrypted using a secret key. C. The encrypted pre-hash code is derived mathematically from the message to be sent. D. The recipient uses the sender's public key, verified with a certificate authority, to decrypt the pre-hash code.
Which of the following BEST describes the necessary documentation for an enterprise product reengineering (EPR) software installation? A. Specific developments only B. Business requirements only C. All phases of the installation must be documented D. No need to develop a customer specific documentation
If a database is restored using before-image dumps, where should the process be restarted following an interruption? A. Before the last transaction B. After the last transaction C. The first transaction after the latest checkpoint D. The last transaction before the latest checkpoint
The responsibilities of a disaster recovery relocation team include: A. obtaining, packaging and shipping media and records to the recovery facilities, as well as establishing and overseeing an offsite storage schedule. B. locating a recovery site if one has not been predetermined and coordinating the transport of company employees to the recovery site. C. managing the relocation project and conducting a more detailed assessment of the damage to the facilities and equipment. D. coordinating the process of moving from the hot site to a new location or to the restored original location.
The extent to which data will be collected during an IS audit should be determined, based on the: A. availability of critical and required information. B. auditor's familiarity with the circumstances. C. auditee's ability to find relevant evidence. D. purpose and scope of the audit being done.
Which of the following systems or tools can recognize that a credit card transaction is more likely to have resulted from a stolen credit card than from the holder of the credit card? A. Intrusion detection systems B. Data mining techniques C. Firewalls D. Packet filtering routers
Which of the following network configuration options contains a direct link between any two host machines? A. Bus B. Ring C. Star D. Completely connected (mesh)
Which of the following functions would be acceptable for the security administrator to perform in addition to his/her normal functions? A. Systems analyst B. Quality assurance C. Computer operator D. Systems programmer
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
Which of the following is the MOST fundamental step in effectively preventing a virus attack? A. Executing updated antivirus software in the background on a periodic basis B. Buying standard antivirus software, which is installed on all servers and workstations C. Ensuring that all software is checked for a virus in a separate PC before being loaded into the production environment D. Adopting a comprehensive antivirus policy and communicating it to all users
Of the following, the MAIN purpose for periodically testing offsite backup facilities is to: A. ensure the integrity of the data in the database. B. eliminate the need to develop detailed contingency plans. C. ensure the continued compatibility of the contingency facilities. D. ensure that program and system documentation remains current.
Cisco Certifications 
