In an array-based implementation of a binary tree, what is stored in leftChild or rightChid if the node has no child?

Which of the following utilities would Kim, a technician, use to resolve the FQDN of a web server to its IP address?

A. netstat B. route C. nslookup D. arp

During the ____________ phase of the SDLC, the project team supervises the tasks necessary to construct the new information system.

Fill in the blank(s) with the appropriate word(s).