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Showing posts from August 21, 2009

CCNA 1 Chapter 3

1. What application layer protocol is commonly used to support for file transfers between a client and a server? HTML HTTP ** FTP Telnet 2. What are two forms of application layer software? (Choose two.) ** applications dialogs requests ** services syntax 3. A network administrator is designing a network for a new branch office of twenty-five users. What are the advantages of using a client-server model? (Choose two.) ** centralized administration does not require specialized software ** security is easier to enforce lower cost implementation provides a single point of failure 4. What is the purpose of resource records in DNS? temporarily holds resolved entries ** used by the server to resolve names sent by the client to during a query passes authentication information between the server and client 5. What is the automated service that matches resource names with the required IP address? HTTP SSH FQDN ** DNS Telnet SMTP 6. What three protocols operate at the Application layer of the OS