CompTIA Network+ N10-007: Ports and Protocols and the OSI Model

Which type of network activities are handled buy the Presentation layer of the OSI model?

Compression and encryption. Character code translation.

Which network communication characteristic is determined at the Transport layer of the OSI model?

Connection-oriented vs. connectionless communication.

The OSI model was designed to facilitate which objective?

Consistency and compatibility when developing new network applications, protocols, and devices.

Match the protocol to its appropriate port.

Domain Name System (DNS) - 53. Remote Desktop Protocol - 3389. Hypertext Transfer Protocol Secure. (HTTPS) - 443. Simple Mail Transfer Protocol (SMTP) - 25. Hypertext Transfer Protocol (HTTP) - 80. Trivial File Transfer Protocol (TFTP) - 69.

Which protocols are operated at the Application layer of the OSI model?

FTP. HTTP. DNS.

Which objects operate at the physical layer of the OSI model?

Hubs. Repeaters. Cables.

Which statements about the User Data-gram Protocol are correct?

IT is a connectionless protocol. IT is faster than TCP.

Which statements about the Transmission Control Protocol are correct?

IT uses acknowledgments. It provides guaranteed delivery of packets.

Which statements about connectionless protocols are correct?

It is less reliable but faster. UDP is the preferred transport protocol. NO prior arrangements are made between endpoints before sending data.

Which networking functions occur at the Network layer of the OSI model?

Logical addressing. Routing. Fragmentation.

The Data Link layer of the OSI model is subdivided into which other layers?

MAC. LLC.

Which type of network activities are handled by the session layer of the OSI model?

Name recognition. Logins.

IP resides at which layer of the OSI model?

Network.

Which TCP/IP diagnostic utilities make use of ICMP?

Ping. Traceroute.

Which statements about connection-oriented protocols are correct?

TCP is the preferred transport protocol. Preliminary negotiations are used to setup and establish end-to-end communication.