CCNA 1 Chapter 03

Cisco CCNA1-Chapter-03  Correct Questions Answers 100%
01. What are two forms of application layer software? (Choose two.)

• applications;
• dialogs;
• requests;
• services;
• syntax.

02. 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.

03. What three protocols operate at the Application layer of the OSI model? (Choose three.)

• ARP;
• DNS;
• PPP;
• SMTP;
• POP;
• ICMP.

04. 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.

05. 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.

06. 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.

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

• MDA;
• IMAP;
• MTA;
• POP;
• SMTP;
• MUA.

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

• DHCP;
• DNS;
• SMB;
• SMTP;
• Telnet.

09. 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.

10. 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 .

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

• physical;
• session;
• network;
• presentation;
• application ;
• transport.

12. What is the automated service that matches resource names with the required IP address?

• HTTP;
• SSH;
• FQDN;
• DNS ;
• Telnet ;
• SMTP ;

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

• 80 ;
• 1261;
• 15533;
• 3912;
• 65520.

14. 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.

15. 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.

16. 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.

17. 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 .

18. 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.

19. What application layer protocol is commonly used to support for file transfers between a client and a server?

• HTML;
• HTTP;
• FTP;
• Telnet.

20. 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.

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