computer network simple homework 4

QUESTION 1

1.What is NOT a primitive for transport services?

	A.	LISTEN
	B.	CONNECT
	C.	SEND
	D.	OPEN

QUESTION 2

1.What is a unit of messages sent form transport entity to transport entity?

	A.	Data unit
	B.	Segment
	C.	Transport unit
	D.	Packet

1.Many of the server processes that can exist on a machine will be used only rarely. It is wasteful to have each of them active and listening to a stable Transport Service Access Points (TSAP) address all day long. What is an alternative scheme?

	A.	Listening Transport Protocol
	B.	Active Transport Protocol
	C.	Server Connection Protocol
	D.	Initial Connection Protocol

QUESTION 4

1.What is a specific endpoint in the transport layer called?

	A.	Transport Protoocl Point
	B.	Transport Service Access Point
	C.	Transport Endpoint
	D.	Transport Connection Point

QUESTION 5

1. The problem of running out of IP addresses is not a theoretical one that might occur at some point in the distant future. It is happening right here and right now. The long-term solution is for the whole Internet to migrate to IPv6, which has 128-bit addresses. This transition is slowly occurring, but it will be years before the process is complete. To get by in the meantime, a quick fix was needed. The quick fix that is widely used today came in the form of ______________.

	A.	IP Extention
	B.	Address Extention
	C.	Network Address Translation
	D.	IP Translation

QUESTION 6

1.When an application (e.g., a user) process wishes to set up a connection to a remote application process, it must specify which one to connect to. The method normally used is to define transport addresses to which processes can listen for connection requests. In the Internet, these endpoints are called _______.

	A.	Internet Address
	B.	Ports
	C.	Points
	D.	Endpoints

QUESTION 7

1.An allocation is ____________ if the bandwidth given to one flow cannot be increased without decreasing the bandwidth given to another flow with an allocation that is no larger.

	A.	Allocation fair
	B.	Bandwidth fair
	C.	Max-min fair
	D.	Blance fair

QUESTION 8

1. Why do we regulate the sending reate to obtain a desirable bandwidth allocation?

QUESTION 9

1.Multiplexing can also be useful in the transport layer for another reason. Suppose, for example, that a host has multiple network paths that it can use. If a user needs more bandwidth or more reliability than one of the network paths can provide, a way out is to have a connection that distributes the traffic among multiple network paths on a round-robin basis. What is this modus operandi called?

QUESTION 10

1.[ Write all elements of transport protocols.