최신Apple OS X Support Essentials 10.9 - 9L0-415무료샘플문제

A. The DNS service is used to translate host names to IP addresses via forward lookups and translate IP addresses to host names via reverse lookups. DNS is architected as a hierarchy of worldwide domain servers. Local DNS servers provide name resolution and possibly host names for local clients. These local DNS servers connect to DNS servers higher in the DNS hierarchy to resolve both unknown host names and host local domain names.

B. Keychains are used to store secrets such as resource passwords, digital certificates, and encryption keys. The keychain system can also securely store Safari AutoFill information, Internet Account settings, and secure text notes.

C. The OS X Mavericks installer can be downloaded from the Mac App Store for free.

D. The Archive option in the Finder creates compressed zip archive files.

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

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

A. Time Machine identifies the 1 MB of file changes, copies those changes to a new file on the backup drive, then creates a 500 KB parity file, and keeps all three files: the two new files representing the 1 MB of file changes, and the original backup file.

B. Time Machine copies the 6 MB file to the backup drive, and keeps both the new backup file and the original backup file on the backup drive.

C. Time Machine copies the 6 MB file to the backup drive, and deletes the original backup copy of the file from the backup drive.

D. Time Machine identifies the 1 MB of file changes, copies those changes to a new file on the backup drive, and keeps both the new backup file and the original backup file.

A. Archive files are much simpler to create in the Finder and are compatible with third-party operating systems. Disk images are more difficult to create and manage, but they offer greater flexibility. Primarily, disk images can be easily modified and converted. However, OS X style disk images aren't compatible with third-party operating systems.

B. AirDrop provides a quick and easy method to share files locally via Wi-Fi. AirDrop creates a secure peer-to-peer network between local devices. You can verify that a Mac supports AirDrop from the Finder Go menu.

C. The DNS service is used to translate host names to IP addresses via forward lookups and translate IP addresses to host names via reverse lookups. DNS is architected as a hierarchy of worldwide domain servers. Local DNS servers provide name resolution and possibly host names for local clients. These local DNS servers connect to DNS servers higher in the DNS hierarchy to resolve both unknown host names and host local domain names.

D. Any account password reset process won't change any keychain passwords. Therefore, the user's keychains won't automatically open when the user logs in with her new password. The user will have to manually change her keychain passwords using the Keychain Access utility.

A. In a preferences database file in ~/Library/

B. In application-specific preferences files in ~/Library/Preferences/

C. In .DS_Store files, at the root level of ~/

D. In a preferences database file in /Library/

A. True

B. False

A. How can you identify duplicate fonts?

B. Which application can you open to initiate Apple software updates?

C. What can you enable to locate a lost Mac system?

D. Which items fall under the file quarantine system?

A. Review Network preferences, review the Network Utilitystatistics, and attempt to connect to different networkservices.

B. Migration Assistant can migrate information from other OS X systems, Windows systems, and other disks, including Time Machine backups.

C. Four common issues that can interrupt network services on a Mac are:
Ethernet connectivity issues, which can cause the hardware network interface to become inactive or introduce excessive packet errors
Wi-Fi connectivity issues caused by the selection of an improper Wi-Fi network or excessive wireless interference
DHCP service issues, which prevent proper TCP/IP configuration
DNS service issues, which prevent host name resolution

D. To verify a specific service is available from a service provider, first use the Network Utility Ping tab to verify basic connectivity. Then use the Network Utility Port Scan tab to verify the specific service port(s) are open. You should always limit the port scan to the specific ports required for the network service you're testing.

A. The Finder doesn't show items with periods at the beginning of their filenames or items with the hidden file flag enabled. Both methods for hiding items can only be managed from the command line interface.

B. The Ping tab of Network Utility allows you to test basic connectivity to another network host by sending and then waiting for the return of a ping packet.

C. The Internet Protocol (IP) address identifies the location of a specific network device. IP addresses are the primary identification used by the Internet protocol suite TCP/IP for both local area and wide area networks. Subnet masks are used by network devices to identify their local network range and to determine whether outgoing data is destined for a network device on the LAN.

D. The master password is used to reset local account passwords.