Replication should be used when which of the following exist?
Options: When transmission speeds and capacity in a network prohibit frequent refreshing of large tables., When using many nodes with different operating systems and DBMSs and database designs., The application's data can be somewhat out-of-date., All of the above.
Which one of the following statements is true for resistance in a parallel circuit?
Options: The total resistance is equal to the sum of the individual resistances in a parallel circuit., The total resistance of a parallel circuit is always less than the value of the smallest resistance, The total resistance of a parallel circuit is equal to the total voltage, The total resistance in a parallel circuit is equal to the average value of the individual resistances
Options: (A)a prepared application that takes advantage of a known weakness. (B) a tool used to quickly check computers on a network for known weaknesses. (C) an application that captures TCP/IP data packets, which can maliciously be used to capture passwords and other data while it is in transit either within the computer or over the network. (D) a situation in which one person or program successfully masquerades as another by falsifying data and thereby gaining illegitimate access.
4.The following is not an advantage of User Level Threads (ULT).
Options: (A)Thread switching does not requires kernel mode privileges because all of the thread management are within the user address space of a single process. (B) Here scheduling can be application specific. (C) ULT can be run an any operating system. (D) When ULT executes a system call, not only that thread blocked, but all of the threads within the process are blocked. 2
Options: (A)A measure of the desired maximal complexity of data mining algorithms (B) A database containing volatile data used for the daily operation of an organization (C) Relational database management system (D) None of these 7