The Acme Corporation is implementing dial-up services to enable remote-office employees to connect to the local network. The company uses multiple routed protocols, needs authentication of users connecting to the network, and since some calls will be long distance, needs callback support. Which of the following protocols is the best choice for these remote services?
Alice is setting up a small network in her home so that she can study for her MCSE exams. She doesn't have a lot of money to spend on hardware, so she wants to use a network topology that requires the least amount of hardware possible. Which topology should she select?
Options: a. Holding down the Shift key while you draw an object creates perfect squares, circles and straight lines b. The text in a text box can’t be formatted c. The drawing toolbar contains tools for drawing shapes, lines, arrows, and more d. Ctrl+S save the document
Options: is an interface between two data circuit terminating equipment as examplified by a local and remote modem, is an interface standard between Data terminal Equipment and Data Circuit Terminating Equipment, specifies only the mechanical characteristics of an interface by providing a 25-pin connector, requires only 7 pin out of 25 in order to transmit digital data over public telephone lines
Which statement describes a spanning-tree network that has converged?
Options: All switch and bridge ports are in the forwarding state., All switch and bridge ports are assigned as either root or designated ports., All switch and bridge ports are in either the forwarding or blocking state., All switch and bridge ports are either blocking or looping.
What is the primary difference between primary and secondary cell batteries?
Options: Primary-cell batteries can be recharged and used many times, whereas secondary-cell batteries cannot be properly recharged, Secondary-cell batteries can be recharged and used many times, whereas primary-cell batteries cannot be properly recharged, Primary-cell batteries use chemical cells, whereas secondary-cell batteries use an alternative energy source, such as thermal or magnetic energy, to supplement their outputs, Primary-cell batteries must be recharged at a much slower rate that secondary-cell batteries
When determining the efficiency of algorithm the time factor is measured by
Options: A)Counting microseconds
b.Counting the number of key operations
c.Counting the number of statements
d.Counting the kilobytes of algorithm
Options: a permanent table which lists all key words and special symbols of the language in symbolic form, a permanent table of decision rules in the form of patterns for matching with the uniform symbol table to discover syntactic structure, consists of a full or partial list of the tokens as they appear in the program. Created by Lexical analysis and used for syntax analysis and interpretation, contains all constants in the program
Which one of the following statements is true for the currents in a series RC circuit?
Options: The current always has the same amplitude and phase for every part of the circuit, The total current is equal to the sum of the currents for the resistance and capacitance, The total current is greater than the sum of the currents for the resistance and capacitance, The total current is less than the sum of the currents for the resistance and capacitance