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.
1. True
2. False
3. True
4. True
5. False
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Indicate whether the statement is true or false
Which type of resource record addition allows computers to register or update their own DNS records, or DHCP can update DNS on behalf of the clients when the clients lease a new IP address?
A. Static DNS B. Primary DNS C. Dynamic DNS D. Secondary DNS