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
- 7718 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 |
When planning an audit of a network set up, the IS auditor should give highest priority to obtaining which of the following network documentation? A. Wiring and schematic diagram B. Users list and responsibilities C. Applications list and their details D. Backup and recovery procedures
During a review of a business continuity plan, an IS auditor noticed that the point at which a situation is declared to be a crisis has not been defined. The MAJOR risk associated with this is that: A. assessment of the situation may be delayed. B. execution of the disaster recovery plan could be impacted. C. notification of the teams might not occur. D. potential crisis recognition might be delayed.
A control log basic to a real-time application system is a(n): A. audit log. B. console log. C. terminal log. D. transaction log.
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.
An independent software program that connects two otherwise separate applications sharing computing resources across heterogeneous technologies is known as: A. middleware. B. firmware. C. application software. D. embedded systems.
Separation of duties between computer opeartors and other data processing personnel is intended to: A. Prevent unauthorized modifications to program or data. B. Reduce overall cost of operations C. Allow operators to concentrate on their assigned duties D. Restrict operator access to data
Which of the following implementation modes would provide the GREATEST amount of security for outbound data connecting to the Internet? A. Transport mode with authentication header plus encapsulating security payload (ESP) B. Secure socket layer (SSL) mode C. Tunnel mode with AH plus ESP D. Triple-DES encryption mode
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 security techniques is the BEST method for authenticating a user's identity? A. Smart card B. Biometrics C. Challenge-response token D. User ID and password
Which of the following is the PRIMARY safeguard for securing software and data within an information processing facility? A. Security awareness B. Reading the security policy C. Security committee D. Logical access controls
An organization has contracted with a vendor for a turnkey solution for their electronic toll collection system (ETCS). The vendor has provided its proprietary application software as part of the solution. The contract should require that: A. a backup server be available to run ETCS operations with up-to-date data. B. a backup server be loaded with all the relevant software and data. C. the systems staff of the organization be trained to handle any event. D. source code of the ETCS application be placed in escrow.
An IS auditor has just completed a review of an organization that has a mainframe and a client-server environment where all production data reside. Which of the following weaknesses would be considered the MOST serious? A. The security officer also serves as the database administrator (DBA.) B. Password controls are not administered over the client/server environment. C. There is no business continuity plan for the mainframe system?s non-critical applications. D. Most LANs do not back up file server fixed disks regularly.
Cisco Certifications 
