Four routers have to be interconnected in a point-to-point Network. Each pair of root us may connected by a high-speed line, a medium speed line or a low speed line. Find the total number of topologies.
Use of a supertype/subtype relationship is necessary when which of the following exists?
Options: An instance of a subtype participates in a relationship that is unique to that subtype., An instance of a subtype participates in a relationship that is the same as the other subtypes., Attributes apply to all of the instances of an entity type., No attributes apply to any of the instances of an entity type.
Options: (A)It is a memory buffer that is used to store data that is needed frequently by an algorithm in order to minimize input/ output traffic (B) The number of different values that a given attribute can take (C) A mathematical conception of space where the location of a point is given by reference to its distance from two or three axes intersecting at right angles (D) None of these 1
. You can use the format painter multiple times before you turn it off by
Options: a. You can use the format painter button only one time when you click it b. Double clicking the format painter button c. Pressing the Ctrl key and clicking the format painter button d. Pressing Alt key and clicking the format painter button