Mike has implemented an IP telephony system for his company. Employees now use this system
for their telephone calls. Which of the following is true regarding Voice-over-IP (VoIP) telephone
conversations?

Your wireless client cannot properly communicate with a wireless access point (WAP). Which of
the following might need to be changed?

Which IP address is called the loopback address, and can be used for testing and
troubleshooting?

Chris has decided to increase the cellspacing attribute value in his XHTML table. What is affected
by this change?

In which process do two routers communicate to automatically calculate routes and to exchange
information about routes of known networks?

Which port does a Domain Name System (DNS) server use to listen for client queries?

Maria and her team are beginning to redesign a corporate Web site. The company owners want to
keep the site’s navigation icons at the top of each page, and enable linked pages to appear in
another section of the same browser window. Which XHTML technique does Maria suggest?

Your supervisor directs you to make static IP address assignments on the workstations in your
office. Your workstations are part of a company WAN that also connects directly to the Internet.
What information must you have in order to complete this assignment?

Which markup language describes document content instead of adding structure or formatting to
document content?

You are the project manager in charge of a project to launch an e-commerce site. Over the course
of the project, several unforeseen issues arose, and the team implemented additions that were not
included in the original design specifications. The project was completed three months after the
original deadline. Which of the following best describes this situation?