Which cable would connect to an RJ-45 connector?
A) Docking station
B) Power brick
C) Ethernet
D) Phone
C
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It is an error to call the delete operator on a pointer a second time. Consider what happens if there is memory allocated on the free store for a class, a destructor, and initializing constructors have been defined, but no copy constructor was defined. Now suppose a function is called that has call-by-value parameters. Why does the program either die in the middle or give a segmentation fault?
What will be an ideal response?
In terms of computer security, a switch offers better security than a hub. Why is this?
a. A hub requires a special pin to activate the connection. b. A hub forwards the data it receives to every device connected to the hub. It is possible for network devices to pick up data intended for a different device. A switch eliminates this by only forwarding data packets to the correct device whenever possible. c. A switch forwards the data it receives to every device connected to the switch. It is possible for network devices to pick up data intended for a different device. A hub eliminates this by only forwarding data packets to the correct device whenever possible. d. The use of the switch guarantees that all devices connected to it share link integrity pulses. This sharing of the pulses strengthens the security of the connection.
Which of the following are advantages of auto-negotiation? (Select all that apply.)
a. It is useful in LANs that have multiple users with multiple connection capabilities. b. It can maximize the data link throughput. c. It simplifies the backbone configuration. d. It simplifies LAN configuration. e. All of the answers are correct
Describe a good composition test for a program that accepts first and last names of users. What should the input be composed of? What input should it flag as unacceptable?
What will be an ideal response?