A technician arrives at a site and is troubleshooting an unfamiliar network. Which of the following steps should be done FIRST to diagnose the problem?
A. Escalate the problem to administrative technician.
B. Compare wiring schematics to industry standards.
C. Identify symptoms and draw a network diagram.
D. Use a port analyzer to determine network topology
Answer: C. Identify symptoms and draw a network diagram.
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where i is the square root of -1. Which of the following statements is false?
Complex numbers have the form ``` realPart + imaginaryPart * i ``` a) C#’s simple numeric types are value types. b) To mimic the simple numeric types, we can define ComplexNumber as a value type by using a struct (short for “structure”) rather than a class. c) C#’s simple types like int and double are actually aliases for struct types. d) Microsoft recommends using structs for most new types, but recommends a class if the type represents a single value.
What is the result of the following code? Assume that the classes used are those from the Drawing Shapes application and that this method is in the PainterJPanel class.
``` 1 private void drawJButtonActionPerformed( ActionEvent event ) 2 { 3 MyOval oval; 4 5 for ( int i = 0; i <= 50; i += 10 ) 6 { 7 oval = new MyOval( i, 20, 10, 10, Color.GREEN ); 8 shapes.add( oval ); 9 10 } // end for 11 12 repaint(); 13 14 } // end method drawJButtonActionPerformed ```
Flickr allows users to apply a specialized type of tag to their photos, known as a ____.
A. tagroll B. geotag C. cloud tag D. neotag
A _____ captures data from company transactions and other key events, and then updates the firm’s records, which are maintained in electronic files or databases.
a. transaction processing system (TPS) b. transaction migration system (TMS) c. transaction secured system (TSS) d. transaction broadcast system (TBS)