1. What type of server would use IMAP?
* FTP
* DNS
* e-mail
* DHCP
* Telnet
* web

2. A client has decoded a frame and started the de-encapsulation process. In which order does the de-encapsulation process occur?
* 1) add TCP header to data
2) add Ethernet header and trailer
3) add an IP header
4) encode the frame into bits
* 1) remove Ethernet header and trailer
2) remove IP header
3) remove TCP header
4) pass data to the application
* 1) remove IP header
2) remove Ethernet header and trailer
3) remove TCP header
4) pass data to the application
* 1) add TCP header to data
2) add an IP header
3) add frame header and trailer
4) encode the frame into bits

3. Which type of server would most likely be used first by a network client in a corporate environment?

* FTP
* Telnet
* DHCP
* e-mail
* DNS
* web

4. A user types www.cisco.com into a web browser address textbox. What does www.cisco.com represent?
* the closest router interface to the source
* the IP address of a web server
* the source IP address in the data transmission
* a physical network address

5. Which protocols are TCP/IP application layer protocols? (Choose two.)
* SMTP
* FTP
* UDP
* IP

* TCP
6. Which protocol is used by FTP to transfer files over the Internet?
* SNMP
* UDP

* SMTP

* TCP

7. What is an advantage of the use of layers in the OSI reference model? * It increases complexity.
* It prevents changes in one layer from affecting other layers.
* It requires the use of single-vendor equipment for hardware and software communications.
* It breaks network communications into larger parts.

8. You are creating a network-based video game. What influences your decision about which transport protocol to use for the application?
* Both TCP and UDP can be used simultaneously to ensure speed and guaranteed delivery.
* Both TCP and UDP may slow transmission and disrupt game operation, so no transport protocol should be used.
* TCP provides extra acknowledgements that will ensure smooth video delivery.
* UDP will not disrupt the game to retransmit dropped packets.

9. Which of the following are layers of the TCP/IP model? (Choose three.)
* Internet
* Network Access
* Application
* Presentation * Physical

10. Whenever e-mail clients send letters, what device is used to translate the domain names into their associated IP addresses?
* Network redirector server
* SNMP server
* Uniform Resource Locator
* DNS server

11. Which port number is used by SMTP?
* 26
* 20
* 25
* 110
* 21

12. 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?
* passes data to the application layer
* removes the TCP header
* removes the Ethernet header and trailer
* removes the IP header

13. Refer to the graphic. Which protocol is used to access this website?
* VoIP

* IM
* FTP
* SNMP

* HTTP

14. What client software enables logged in users to communicate with other logged in users in real time?
* instant messaging
* blog
* web mail
* e-mail

15. Which application is most likely used to translate www.cisco.com to 198.133.219.25?
* HTTP
* DHCP
* FTP
* DNS
* POP
* SMTP

16. 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.
* The packet header identifies it as an HTTP or FTP packet.
* The source port number is associated with one of these well known server applications.
* The data in the segment is specially formatted for either HTTP or FTP.

17. Which protocol is used by e-mail servers to communicate with each other?
* POP
* HTTP * SNMP
* FTP
* TFTP
* SMTP

18. What information is contained in an IP header?
* both source and destination IP and MAC addresses
* only destination IP and MAC addresses
* source and destination IP addresses
* source and destination MAC addresses

19. What term is used to describe how TCP/IP protocols are layered and interact to format, address, and transmit information across a network?
* protocol layering
* protocol hierarchy
* protocol modeling
* protocol stack

20. Cabling issues are associated with which OSI layer?
* 3
* 1
* 4
* 2

21. What is the correct order of the layers of the OSI reference model, starting at the lowest layer and working up the model? * data link, physical, transport, network, presentation, session, application
* physical, data link, network, transport, presentation, session, application
* physical, data link, network, session, transport, presentation, application
* physical, data link, network, transport, session, presentation, application
* application, session, presentation, transport, data link, network, physical

22. What three items are contained in an Ethernet frame? (Choose three.)
* error-checking information
* destination IP address
* destination MAC address
* source IP address
* source MAC address