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What application layer protocol is commonly used to support for file transfers b/w a client & a server?
What are 2 forms of application layer software? (choose two)
A network administrator is designing a network for a new branch office of 25 users. What are the advantages of using client-server model? (choose 2)
• centralized administration
• does not require specialized software
• security is easier to enforce
• lower cost implementation
• provides a single point of failure
1. Centralized administration
2. Security is easier to enfore
What 3 protocols operate at the Application layer of the OSI model? (choose three)
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
Used by the server to resolve names
What is the automate service that matches resource names w/ the required IP address?
What are 3 properties of peer-to-peer application?
• 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.
1. Acts as both client & server w/in the same communication
2. Hybrid mode includes a centralized directory of files.
3. Can be used in client-server networks
Which application protocols correctly match a corresponding function? (choose 2)
• 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
1. HTTP transfer data from a web server to a client
2. Telnet provides a virtual connection for remote access
Which email components are used to forward mail b/w servers? (choose two)
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
does not support encryption
Which statements are correct concerning the role of MTA in handling mail? (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
1. receives email from the client's MUA
2. passes email to the MDA for final delivery
3. uses SMTP to route email b/w servers
Which 2 protocols are used to control the transfer of web resources from a web server to a client browser? (choose two)
A small home network has been installed to interconnected 3 computers together for gaming & file sharing. What 2 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.
1. Security is difficult to enforce
2. A computer that responds to a file sharing request is functioning as a server
Which layer of the OSI model supplies services that allow user to interface w/ the network?
Refer to the exhibit. What is the destination port for the communication that is represented on line 5?
What are 2 characteristics of peer-to-peer networks? (choose two)
• one way data flow
• decentralized resources
• centralized user accounts
• resource sharing without a dedicated server
1. decentralized resources
2. resource sharing w/o a dedicated server
What application layer protocol describes the services that are used file sharing in Microsoft networks?
What are 2 characteristics of clients in data networks?
• use daemons
• initiate data exchanges
• are repositories of data
• may upload data to servers
• listen for requests from servers
1. initiate data exchanges
2. may upload data to servers
What is the role of the OSI application layer?
• provides segmentation of data
• provides encryption and conversion of data
• provides the interface between the applications on either end of the network
• provides control of all the data flowing between the source and destination devices
provides the interface between the applications on either end of the network
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
uses support from lower functions to distinguish between connections to the service
Which 3 layers of the OSI model make up the Application layer of the TCP/IP model?
Which protocols use authentication and encryption to secure data traveling b/w client & server?
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