Typically, users navigate through a Web form using the _____ key, which moves the cursorfrom one field to another in the order that the field tags are entered into the HTML file.

Typically, there will need to be a rather high degree of coordination and interaction among the threads of an application, leading to a __________ level of synchronization.

A) ?independent grain ? B) ?medium grain C) ?course grain ? D) ?fine grain

What does the MX record do in a forward DNS zone?

a. It identifies the hostname and port of a computer that hosts a specific network service, such as FTP or SIP. b. It identifies the authoritative name server for a domain. c. It identifies the e-mail server to be used for e-mail traffic for the domain. d. It holds the alternative names for a host.