Options: an error-detecting code based on a summation operation performed on the bits to be checked, a check bit appended to an array of binary digits to make the sum of all the binary digits., a code in which each expression conforms to specify 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 error is detected., the ratio of the data units in error to the total number of data units
You are unsuccessful in telnetting into a remote device. What could the problem be? IP addresses are incorrect. Access control list is filtering Telnet. There is a defective serial cable. The VTY password is missing.
Options: 1 only, 3 only, 2 and 4 only, All of the above
Which two of the following are true regarding the distance-vector and link-state routing protocols? Link state sends its complete routing table out all active interfaces on periodic time intervals. Distance vector sends its complete routing table out all active interfaces on periodic time intervals. Link state sends updates containing the state of its own links to all routers in the internetwork. Distance vector sends updates containing the state of its own links to all routers in the internetwork.
Options: 1 only, 3 only, 2 and 3 only, None of the above
A _____ provides a set of integrated computer tools that allow a decision maker to interact directly with computers in order to retrieve information useful for semistructured and unstructured decisions,
The process of evaporation of water in nature is one of the basic components of the hydrological cycle. The other process that is considered to be essential for the completion of hydrological cycle is the
Options: flow tide and ebb tide in a river, movement of water vapour in the atmosphere, flow of water in the sea, movement of water in the water table
Brad is in charge of a small network and wants to make it simple but secure. The users want to have full control over their data and still be able to share data with the rest of the office. The networking knowledge of the office staff is excellent. Which network(s) would be the best to set up?
Performance analysis and tuning is which of the following?
Options: Undertaken one time at the time of a DBMS installation, Undertaken one time at the time of the implementation of a new application, Undertaken as an ongoing part of the backup of a database, Undertaken as an ongoing part of managing a database
Which of the following conditions should exist if you want to convert a relationship to an associative entity?
Options: Some of the relationships for the participating entities are "many"., The resulting associative entity has an independent meaning., The resulting associative entity has no attributes., All of the above