What are two features of protocols used within the TCP/IP protocol stack? (Choose two.)

What are two features of protocols used within the TCP/IP protocol stack? (Choose two.)

• UDP is used when an application must be delivered as quickly as possible and some loss of data can be tolerated.
• TCP and UDP destination port numbers are dynamically generated by the sending device in order to track the responses to requests.
• TCP mechanisms retransmit data when an acknowledgment is not received from the destination system within a set period of time.
• The same Transport Layer source port is used for all of the tabs opened at the same time within a web browser.
• The Internet Layer IP protocol has built in mechanisms for ensuring the reliable transmission and receipt of data.