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TransportLayerTCP_IP
TCP IP
| Question | Answer |
|---|---|
| Which of the following are not features of a protocol that is considered to match OSI Layer 4? a. Error recovery b. Flow control c. Segmenting of application data d. Conversion from binary to ASCII | Features of layer 4 are, error recovery, flow control, segmenting of application data |
| Which of the following header fields identify which TCP/IP application gets data received by the computer? | TCP Port Number & Application ID |
| Which of the following are not typical functions of TCP? a. Windowing b. Error recovery c. Multiplexing using port numbers d. Routing e. Encryption f. Ordered data transfer | D. Routing e. Encryption |
| Which of the following functions is performed by both TCP and UDP? a. Windowing b. Error recovery c. Multiplexing using port numbers d. Routing e. Encryption f. Ordered data transfer | C. ONLY TCP performs windowing, error recovery, and ordered data transfer. Neither TCP OR UDP performs routing or encryption. |
| In the URL http://www.fredsco.com/name.html, which part identifies the web server? a. http b. www.fredsco.com c. fredsco.com d. http://www.fredsco.com e. The file name.html includes the hostname. | B. Note that the hostname is all the text between the // and the /. The text before the // identifies the application layer protocol, and the text after the / represents the name of the web page. |
| Which of the following is a device or function whose most notable feature is to examine trends over time to recognize different known attacks as compared to a list of common attack signatures? a. VPN b. Firewall c. IDS d. NAC | C. Intrusion Detection Systems (IDS) monitor packets, comparing the contents of single packets, or multiple packets, to known combinations (signatures) that typically imply that a network attack is occurring. |
| Multiplexing relies on a concept called a SOCKET. A socket consits of three things... | ip address, transport protocol, port number |
| well know port numbers are used by.... | servers |
| other port numbers that are not well known are used by ... | clients |
| well known port number range is | 0-1024 the rest of the port numbers go up to 65536 |