CCNA discovery 1.6

CCNA Discovery 1 Module 6 Exam Answers Version 4.0 1. A user types www.cisco.com into a web browser address textbox. What does www.cisco.com represent? • the IP address of a web server  2. What type of server would use IMAP?  • e-mail   3. Which type of server would most likely be used first by a network client in a corporate environment?  • DHCP   4. Which protocol is used by FTP to transfer files over the Internet? • TCP   5. Which protocols are TCP/IP application layer protocols? (Choose two.)  • FTP  • SMTP   6. Which of the following are layers of the TCP/IP model? (Choose three.) • Application  • Internet  • Presentation  7. You are creating a network-based video game. What influences your decision about which transport protocol to use for the application? • UDP will not disrupt the game to retransmit dropped packets.  8. Whenever e-mail clients send letters, what device is used to translate the domain names into their associated IP addresses?  • DNS server  9. Which application is most likely used to translate www.cisco.com to 198.133.219.25?  • DNS   10. Refer to the graphic. Which protocol is used to access this website?  • HTTP  11. Which port number is used by SMTP?  • 25   12. Which protocol is used by e-mail servers to communicate with each other?   • SMTP 13. What client software enables logged in users to communicate with other logged in users in real time?  • instant messaging  14. An Internet server is running both FTP and HTTP services. How does the server know which of these applications should handle an incoming segment? • The segment destination port number identifies the application that should handle it.  15. What term is used to describe how TCP/IP protocols are layered and interact to format, address, and transmit information across a network? • protocol stack  16. What three items are contained in an Ethernet frame? (Choose three.) • source IP address • source MAC address • destination MAC address • error-checking information  17. What information is contained in an IP header? • source and destination IP addresses  18. Cabling issues are associated with which OSI layer? • 1  19. A device receives an Ethernet frame and recognizes the MAC address as its own. What does the device do to the message to get to the encapsulated data?  • removes the Ethernet header and trailer  20. A client has decoded a frame and started the de-encapsulation process. In which order does the de-encapsulation process occur?  • 1) remove Ethernet header and trailer 2) remove IP header 3) remove TCP header 4) pass data to the application . • It prevents changes in one layer from affecting other layers. .  22. What is the correct order of the layers of the OSI reference model, starting at the lowest layer and working up the model?  • physical, data link, network, transport, session, presentation, application