A. an error-detecting code based on a summation operation performed on the bits to be checked.
B. a check bit appended to an array of binary digits to make the sum of all the binary digits.
C. a code in which each expression conforms to specific rules of construction, so that if certain errors occur in an expression, the resulting expression will not conform to the rules of construction and thus the presence of the errors is detected.
D. the ratio of the number of data units in error to the total number of data units
E. None of the above
Correct Answer
the ratio of the number of data units in error to the total number of data units
More questions
1. One of the major components of a PC is the Central Processing Unit (CPU) which can be best described as:
Options
A. The device that sends the monitor signals telling it what to display
B. The area that regulates all of the system power usage
C. The area where all the of the Basic input/output routines are stored
D. The area where all of the processing takes place
9. You are the administrator of a network that consists of a single Windows NT 4.0 domain. The network contains five Windows NT Server domain controllers and 1,000 Windows NT Workstation client computers. You want to install Windows 2000 Server on a new computer. You want the new computer to act as a domain controller in the existing domain. What should you do?
Options
A. On the new computer, install Windows NT Server 4.0 and designate the computer as a BDC in the existing domain. Promote the computer to the PDC of the domain. Upgrade the computer to Windows 2000 Server
B. On the new computer, install Windows NT Server 4.0 and designate the computer as a PDC in a new domain that has the same NetBIOS name as the existing Windows NT domain. Upgrade the computer to Windows 2000 Server. Use Active Directory Sites and Services to force synchronization of the domain controllers
C. Shut down the PDC of the existing Windows NT domain from the network. On the new computer, install Windows 2000 Server, and then run the Active Directory Installation wizard to install Active Directory, specifying the same NetBIOS name for the Windows2000 domain as the existing Windows NT domain
D. Shut down the PDC of the existing Windows NT domain from the network. On the new computer, install Windows 2000 Server, and then run the Active Directory Installation wizard to install Active Directory as a replica in the existing Windows NT domain. Promote the new computer to the PDC of the domain. Restart the Windows NT PDC on the network and demote it to a BDC
Correct Answer: On the new computer, install Windows NT Server 4.0 and designate the computer as a BDC in the existing domain. Promote the computer to the PDC of the domain. Upgrade the computer to Windows 2000 Server
10. The MODE command of MS-DOS is used to
Options
A. display information about several types of devices installed in your computer
B. provide various types of control over your printers