A company suffers an outage due to a bad module in a core switch. Which of the following is the proper order of troubleshooting?
A. Gather information, start at the top of the OSI model, and work down.
B. Establish a plan of action to solve the problem.
C. Establish a theory, identify the problem, duplicate the problem, test the theory, and repeat.
D. Gather information, start at the bottom of the OSI model, and work up.
Answer: B. Establish a plan of action to solve the problem.
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Which of the following statements is false?
a. By convention class names begin with an uppercase letter, and method and variable names begin with a lowercase letter. b. Instance variables exist before methods are called on an object, while the methods are executing and after the methods complete execution. c. A class normally contains one or more methods that manipulate the instance variables that belong to particular objects of the class. d. Instance variables can be declared anywhere inside a class.
The best way to get your Web site to attract first-time and repeat visitors is to make the Web site visually stimulating, give it good content, and structure that content well.
Answer the following statement true (T) or false (F)
How can a user view the contents of a Windows directory?
What will be an ideal response?
Within an event-driven program, a component on which an event is generated is the ____ of the event.
A. handler B. driver C. listener D. source