OS X Support Essentials 10.9: 9L0-415

Review the screenshot of part of a Network Utility window, and then answer the question below.

Which statement accurately interprets the Network Utility Lookup results shown above?

A. A forward lookup of mainserver.pretendco.com returned the IP address 10.1.0.1.

B. A reverse lookup of mainserver.pretendco.com returned the IP address 10.1.0.1.

C. A reverse lookup of 10.1.0.1 returned the name mainserver.pretendco.com.

D. The DNS server for mainserver.pretendco.com is pretendco.com.

How can you find out which application the Finder will use to open a specific document?

A. Select the document icon in the Finder, choose Get Info from the File menu, and click the disclosure triangle next to "Open with" in the Info window to reveal the selected application in the pop-up menu.

B. Select the document icon in the Finder, and choose Show Default Application from the File menu.

C. Control-click the document icon in the Finder, and choose Show Application from the shortcut menu.

D. Select the document icon in the Finder, choose Show Inspector from the File menu, click Application Bindings in the Inspector window, and scroll to locate the selected application in the pop-up menu.

What do the terms "interface," "protocol," and "service" mean in relation to computer networks?

A. A Service Set Identifier, or SSID, is used to identify a Wi-Fi network name and associated configuration.

B. An interface is any channel through which network data can flow. Hardware network interfaces are defined by physical network connections, and virtual network interfaces are logical network connections that ride on top of hardware network connections. A protocol is a set of rules used to describe a specific type of network communication. Protocols are necessary for separate network devices to communicate properly. Finally, a network service (as it pertains to Network preferences) is the collection of settings that define a network connection.

C. A Safe Boot is initiated c. by holding down the Shift key during system startup

D. Client software is used to access network services provided by server software. The connection is established using a common network protocol known by both the client and server software. Thus, the client and server software can be from different sources.