CCNA Exploration v4 - Network Fundamentals - Chapter 03 http://mandymcfadden.bizhat.com/spinetail/15305.jpg @random As compared to SSH, what is the primary disadvantage of telnet? not widely available *does not support encryption consumes more network bandwidth does not support authentication 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 What are three properties of peer-to-peer applications? (Choose three.) *acts as both a client and server within the same communication requires centralized account administration *hybrid mode includes a centralized directory of files *can be used in client-server networks requires a direct physical connection between devices centralized authentication is required What application layer protocol is commonly used to support for file transfers between a client and a server? HTML HTTP *FTP Telnet @img 15305.jpg Refer to the exhibit. What is the destination port for the communication that is represented on line 5? *80 1261 15533 3912 65520 What application layer protocol describes the services that are used for file sharing in Microsoft networks? DHCP DNS *SMB SMTP Telnet 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 How does the application layer on a server usually process multiple client request for services? ceases all connections to the service denies multiple connections to a single daemon suspends the current connection to allow the new connection *uses support from lower layer functions to distinguish between connections to the service What three protocols operate at the Application layer of the OSI model? (Choose three.) ARP *DNS PPP *SMTP *POP ICMP Which statements are correct concerning the role of the MTA in handling email? (Choose three.) routes email to the MDA on other servers *receives email from the client's MUA receives email via the POP3 protocol *passes email to the MDA for final delivery *uses SMTP to route email between servers delivers email to clients via the POP3 protocol What are two characteristics of peer-to-peer networks? (Choose two.) scalable one way data flow *decentralized resources centralized user accounts *resource sharing without a dedicated server A small home network has been installed to interconnect three computers together for gaming and file sharing. What two properties represent this network type? (Choose two.) User accounts are centralized. *Security is difficult to enforce. Specialized operating system software is required. File permissions are controlled by a single computer. *A computer that responds to a file sharing request is functioning as a server. What are two characteristics of clients in data networks? (Choose two.) use daemons *initiate data exchanges are repositories of data *may upload data to servers listen for requests from servers Which application layer protocols correctly match a corresponding function? (Choose two.) DNS dynamically allocates IP addresses to hosts *HTTP transfers data from a web server to a client POP delivers email from the client to the server email server SMTP supports file sharing *Telnet provides a virtual connection for remote access Which two protocols are used to control the transfer of web resources from a web server to a client browser? (Choose two.) ASP FTP HTML *HTTP *HTTPS IP Which layer of the OSI model supplies services that allow user to interface with the network? physical session network presentation *application transport Which email components are used to forward mail between servers? (Choose two.) MDA IMAP *MTA POP *SMTP MUA What is the automated service that matches resource names with the required IP address? HTTP SSH FQDN *DNS Telnet SMTP What are two forms of application layer software? (Choose two.) *applications dialogs requests *services syntax What is the role of the OSI application layer? provides segmentation of data provides encryption and conversion of data *provides theinterface between the applications on either end of the network provides control of all the data flowing between the source and destination devices