Interested to Buy Any Domain ? << Click Here >> for more details...
Transmitting redundant information with each character or
frame to facilitate detection and correction of errors is
called:
A. feedback error control.
B. block sum check.
C. forward error control.
D. cyclic redundancy check.
- 1 Answers
- 7780 Views
- I also Faced
- E-Mail Answers
Answer / guest
Answer: C
Forward error control involves transmitting additional
redundant information with each character or frame to
facilitate detection and correction of errors. In feedback
error control, only enough additional information is
transmitted so the receiver can identify that an error has
occurred. Choices B and D are both error detection methods
but not error correction methods. Block sum check is an
extension of parity check wherein an additional set of
parity bits is computed for a block of characters. A cyclic
redundancy check is a technique wherein a single set of
check digits is generated for each frame transmitted, based
on the contents of the frame.
| Is This Answer Correct ? | 10 Yes | 0 No |
Which of the following is a concern when data is transmitted through secure socket layer (SSL) encryption implemented on a trading partner's server? A. Organization does not have control over encryption. B. Messages are subjected to wire tapping. C. Data might not reach the intended recipient. D. The communication may not be secure.
Which of the following would be the LEAST likely indication that complete or selected outsourcing of IS functions should be considered? A. The applications development backlog is greater than three years. B. It takes one year to develop and implement a high-priority system. C. More than 60 percent of programming costs are spent on system maintenance. D. Duplicate information systems functions exist at two sites.
An internal audit department, that organizationally reports exclusively to the chief financial officer (CFO) rather than to an audit committee, is MOST likely to: A. have its audit independence questioned. B. report more business-oriented and relevant findings. C. enhance the implementation of the auditor's recommendations. D. result in more effective action being taken on the recommendations.
When using public key encryption to secure data being transmitted across a network: A. both the key used to encrypt and decrypt the data are public. B. the key used to encrypt is private, but the key used to decrypt the data is public. C. the key used to encrypt is public, but the key used to decrypt the data is private. D. both the key used to encrypt and decrypt the data are private.
An IS auditor who is participating in a systems development project should: A. recommend appropriate control mechanisms regardless of cost. B. obtain and read project team meeting minutes to determine the status of the project. C. ensure that adequate and complete documentation exists for all project phases. D. not worry about his/her own ability to meet target dates since work will progress regardless.
Which of the following is an object-oriented technology characteristic that permits an enhanced degree of security over data? A. Inheritance B. Dynamic warehousing C. Encapsulation D. Polymorphism
Detection risk refers to: A. concluding that material errors do not exist, when in fact they do. B. controls that fail to detect an error. C. controls that detect high-risk errors. D. detecting an error but failing to report it.
Which of the following is the MOST critical element of an effective disaster recovery plan (DRP)? A. Offsite storage of backup data B. Up-to-date list of key disaster recovery contacts C. Availability of a replacement data center D. Clearly defined recovery time objective (RTO)
Which of the following audit procedures would MOST likely be used in an audit of a systems development project? A. Develop test transactions B. Use code comparison utilities C. Develop audit software programs D. Review functional requirements documentation
Which of the following would be of MOST concern to an IS auditor reviewing a VPN implementation? Computers on the network that are located: A. on the enterprise's facilities. B. at the backup site. C. in employees' homes. D. at the enterprise's remote offices.
Which of the following controls would be the MOST comprehensive in a remote access network with multiple and diverse subsystems? A. Proxy server B. Firewall installation C. Network administrator D. Password implementation and administration
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.
Cisco Certifications 
