Which of the following network devices builds a table of ports to MAC addresses to forward packets only to necessary ports?
A. Switch
B. Hub
C. Router
D. Repeater
Answer: A. Switch
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Answer the following statements true (T) or false (F)
1. Semantics are the set of grammar rules for a high-level language. 2. The CPU refers to the control unit and the ALU.(arithmetic logic unit) 3. A modern digital computer represents values in memory in base 10. 4. A compiler is hardware used to translate a C++ program into machine language. 5. The source file is the machine language version of a C++ program.
Which of the following will be launched automatically if Windows 7 detects a problem while booting the system?
A. Restart Manager B. Microsoft Update C. Service-failure Recovery D. Startup Repair Tool
You can make a brush tip larger by using the ______ key on your keyboard.
A. SHIFT B. ALT C. right bracket ( ] ) D. Command
The ____ structure makes a decision and then takes an appropriate action based on that decision.
A. repetition B. sequence C. command D. selection