Some Web browsers display a feed icon in the ____ if a Web site offers a Web feed.

A technician troubleshooting a mail server determines that the server is low on available hard drive space and needs an additional hard drive installed. The server will need to be offline for the hardware installation. Which of the following troubleshooting steps should the technician do NEXT?

A. Notify impacted users of the scheduled maintenance. B. Implement one change at a time. C. Collect additional information. D. Document findings, actions, and outcomes.

Answer the following statements true (T) or false (F)

1. A pointer whose value is NULL does not point to anything. 2. A newly declared pointer variable has a default value of NULL. 3. In C++, the programmer must explicitly deallocate memory. 4. If the value of the head pointer is NULL, the linked list is empty. 5. When you design an abstract data type, you concentrate on what its operations do and how you will implement them.