Ch.7 Mac Os X 10.5 Support Essentials 2008

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1. What is the relationship between clients and servers as it relates to network service access?

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1. 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.

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2. What is the relationship between a network service and a network port?

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2. Network services are established using a common network protocol.The protocol specifies which TCP or UDP port number is used for communications.

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3. What are three common troubleshooting techniques for issues involving failure to connect to network services?

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3. Review the Network preferences,review the Network Utility statistics,and attempt to connect to different network services.

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4. What five network file services can you connect to from the Finder’s Connect to Server dialog?

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4. From the Finder’s Connect to Server dialog,you can connect to Apple File Protocol (AFP),Server Message Blocks/Common Internet File System (SMB),Network File System (NFS),Web-Based Distributed Authoring and Versioning (WebDAV),and File Transfer Protocol (FTP) network file services.

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5. What three dynamic network service discovery protocols are supported by Mac OS X?

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5. Mac OS X supports Bonjour,AppleTalk,and Network Basic Input/Output and Windows Internet Naming Service (NetBIOS and WINS) dynamic network service discovery protocols.

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6. How does Mac OS X use dynamic network service discovery protocols to access network services?

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6. Devices providing a network service advertise their availability via a dynamic network service discovery protocol. Clients that are looking for services request and receive this information to provide the user with a list ofavailable network service choices.

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7. How are items inside the Finder’s Network folder populated?

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7. The Finder populates the Network folder using information provided by the dynamic network services discovery protocols. Computers providing services appear as resources inside the Network folder,while service discovery zones or workgroups appear as folders.Any currently connected servers will also appear in the Network folder.

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8. What are some known issues that arise when connecting to network file services?

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8. Forked files may cause problems for NFS or WebDAV network file systems.Also, avoid AFP 2 services as provided by Windows file servers.

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9. What is a directory as it relates to directory services?

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9. A directory is a database ofinformation that is optimized for frequent read access. The most commonly accessed directory resource is account information.

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10. What are seven common types ofresources Mac OS X can access from a directory service?

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10. Common directory resources that Mac OS X can access include user accounts,user groups, computer accounts, computer groups, network file mounts, management settings,and collaboration information.

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11. What are the primary differences between local,network,and mobile accounts?

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11. Local accounts are only available to a single Mac,network accounts are available to Mac connected to a network directory service,and mobile accounts are network accounts that are cached to the local Mac for offline use.

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12. What are four advantages ofusing network directory services to store account information?

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12. Four advantages ofusing network directory services to store account information are: 1) user accounts are no longer tied to individual Macs; 2) the same user account information can be used for multiple network services; 3) you can use Kerberos to provide secure single-sign-on authentication; and 4) you can define user and computer settings from a centralized location.

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13. What four directory service protocols can be used in Mac OS X?

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13. The directory service protocols that can be used in Mac OS X are Local, Berkeley Software Distribution (BSD) Flat File and Network Information Systems (NIS), Lightweight Directory Access Protocol version 3 (LDAPv3),and Active Directory (AD).

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14. What is authentication? What is authorization?

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14. Authentication is the process ofproving your identity to the computer; authorization defines which items or services you are allowed to access.

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15. What are three common authentication service types?

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15. Three common authentication service types are basic or clear-text passwords, encrypted passwords, and Kerberos ticket-based authentication.

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16. What is a Kerberos ticket? What is a Key Distribution Center (KDC)?

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16. Kerberos tickets are used to validate an account’s identity.Kerberos uses ticket-granting tickets (TGTs) and service tickets.Kerberos requires a special trusted service known as the KDC.In most cases the KDC service is running alongside the network directory service.

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17. How do Kerberos and the keychain system differ for managing authentication services?

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17. Kerberos can only be used to authenticate kerberized services, and is often managed on a networkwide scale.The keychain system can be used to save a wide variety of authentication information,but saved keychain information is only accessible to the local Mac.

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18. What are five common directory services and authentication services troubleshooting

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18. Common directory services and authentication services troubleshooting techniques are: 1) attempting to authenticate with another user account; 2) resetting the account password; 3) verifying network directory service connectivity and configuration; 4) verifying Kerberos authentication and configuration; and 5) checking the directory service log files.