- 1. In DNS, resource records are used by the server to resolve
A) web site proxies B) web site names C) web site traces D) web site pings
- 2. The OSI application layer entails application software and
A) services B) packet tracing C) neo tracing D) wire sharking services
- 3. The application layer protocol used to support File Transport between servers and client is
A) FTP B) TCP C) POP D) DNS
- 4. Peer-to-Peer networks are both decentralized and provide resources without a dedicated
A) data center B) server C) host service center D) supplier
- 5. What does the application layer of the OSI model allow a user to do with a data network?
A) decrease network traffic B) increase network traffic C) interface with the network D) control the network
- 6. The following are all properties of peer-to-peer applications except acting:
A) as both clients and servers B) as either clients or servers C) through the use of specialized software D) in hybrid mode providing file centralization
- 7. The OSI Application layer allows for applications on either end of a network to:
A) cancel each other's requests B) interface and communicate with one another C) monitor mutual multiplexing and segmentation D) hybridize their functions
- 8. The following are protocols that operate at the OSI application layer except:
A) DNS B) SMTP C) IP D) POP
- 9. The two email components used to forward mail between servers are MTA and:
A) POP B) DNS C) IP D) SMTP
- 10. The two protocols used to control web resource transfers from a web server to a client browser are HTTP and:
A) FTP B) HTML C) HTTPS D) DNS
- 11. In handling email, the MTA does the following except:
A) passes email to the MDA for final delivery B) provides a resource lists with the fastest delivery times C) uses SMTP to route email between servers D) receive email from the client's MUA
- 12. Telnet is usually abandoned for SSH because Telnet does not support:
A) segmentation B) encryption C) multiplexing D) packet-tracing
- 13. The HTTP protocol provides the ability of a web server and a web client to transfer:
A) encrypting technologies B) user names and passwords C) data D) packet tracing
- 14. The Telnet service provides users with the ability to remotely access another computer through what type of connection?
A) logical B) operational C) physical D) virtual
- 15. The automated service that matches web site names with their correct IP address is:
A) TCP B) HTTP C) VOIP D) DNS
- 16. Which destination port is used by an application when the HTTP protocol is activated?
A) Port 180 B) Port 380 C) Port 80 D) Port 280
- 17. In a data network, clients can both upload data to servers and:
A) multiply data exchanges B) initiate data exchanges C) prioritize data exchanges D) ignore data exchanges
- 18. In Microsoft Networks, the application layer protocol used to describe the services provided is:
A) POP B) VOIP C) SMB D) SMTP
- 19. There are 2 important advantages of using a client-server network model, centralized administration and better:
A) security B) data exchange C) pricing D) performance
- 20. Why is security a serious concern in a peer-to-peer network:
A) difficult to enforce B) difficult to purchase C) difficult to ignore D) difficult to consider
- 21. In a peer-to-peer network, a client that responds to a file sharing request will then become a/an:
A) user device B) intermediary device C) end device D) server device
- 22. A server's application layer usually processes multiple request for services by using support from lower layer functions to distinguish between:
A) packets B) connections C) users D) accounts
- 23. The following are examples of Peer-to-Peer networks except:
A) Bear Share B) Limewire C) Bit Torrent D) Microsoft Office
- 24. The main reason why a network administrator should block common ports used in file sharing is to avoid:
A) VOIP concerns B) user complaints C) illegal fire sharing D) intense wireless transmissions
- 25. A Peer-to-Peer network can work in a centralized and decentralized manner, this means they can work in what type of mode?
A) hybrid B) wire-sharked C) neo-traced D) packet-traced
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