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 OSI model? (Choose three.)

• ARP

• DNS***

• PPP

• SMTP****

• POP*****

• ICMP

7. 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.

8. 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

9. Which email components are used to forward mail between servers? (Choose two.)

• MDA

• IMAP

•***** MTA

• POP

•***** SMTP

• MUA

10. 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

11. 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

12. 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

13. 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.

14. Which layer of the OSI model supplies services that allow user to interface with the network?

• physical

• session

• network

• presentation

•*-*** application

• transport

15. Refer to the exhibit. What is the destination port for the communication that is represented on line 5?

•**** 80

• 1261

• 15533

• 3912

• 65520

16. 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

17. What application layer protocol describes the services that are used for file sharing in Microsoft networks?

• DHCP

• DNS

•***** SMB

• SMTP

• Telnet

18. 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

19. 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

20. 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