Chapter 11 Quiz

1		One of the responsibilities of the transport layer protocol is to create a ______ communication.
			A)	host-to-host
			B)	process-to-process
			C)	node-to-node
			D)	none of the above
2		UDP is called a ________________transport protocol.
			A)	connectionless, reliable
			B)	connection-oriented, unreliable
			C)	connectionless, unreliable
			D)	none of the above
3		UDP does not add anything to the services of IP except for providing _______ communication.
			A)	node-to-node
			B)	process-to-process
			C)	host-to-host
			D)	none of the above
4		UDP is an acronym for _______.
			A)	User Delivery Protocol
			B)	User Datagram Procedure
			C)	User Datagram Protocol
			D)	none of the above
5		Although there are several ways to achieve process-to-process communication, the most common is through the __________ paradigm.
			A)	client-server
			B)	client-client
			C)	server-server
			D)	none of the above
6		The local host and the remote host are defined using IP addresses. To define the processes, we need second identifiers called ____________ .
			A)	UDP addresses
			B)	transport addresses
			C)	port addresses
			D)	none of the above
7		The ports ranging from 0 to 1,023 are assigned and controlled by ICANN. These are the ___________ ports.
			A)	well-known
			B)	registered
			C)	dynamic
			D)	none of the above
8		The ports ranging from 1,024 to 49,151 are not assigned or controlled by ICANN. They are called ___________ ports.
			A)	well-known
			B)	registered
			C)	dynamic
			D)	none of the above
9		The ports ranging from 49,152 to 65,535 can be used as temporary or private port numbers. They are called the ________ ports.
			A)	well-known
			B)	registered
			C)	dynamic
			D)	none of the above
10		In the sending computer, UDP receives a data unit from the _______ layer.
			A)	application
			B)	transport
			C)	IP
			D)	none of the above
11		In the sending computer, UDP sends a data unit to the _______ layer.
			A)	application
			B)	transport
			C)	IP
			D)	none of the above
12		UDP and TCP are both _______ layer protocols.
			A)	data link
			B)	network
			C)	transport
			D)	none of the above
13		Which of the following functions does UDP perform?
			A)	process-to-process communication
			B)	host-to-host communication
			C)	end-to-end reliable data delivery
			D)	none of the above
14		When the IP layer of a receiving host receives a datagram, _______.
			A)	delivery is complete
			B)	a transport layer protocol takes over
			C)	a header is added
			D)	none of the above
15		UDP needs the _______ address to deliver the user datagram to the correct application process.
			A)	port
			B)	application
			C)	internet
			D)	none of the above
16		A port address in UDP is _______ long.
			A)	8
			B)	16
			C)	32
			D)	any of the above
17		Which of the following does UDP guarantee?
			A)	flow control
			B)	connection-oriented delivery
			C)	flow control
			D)	none of the above
18		The source port address on the UDP user datagram header defines _______.
			A)	the sending computer
			B)	the receiving computer
			C)	the process running on the sending computer
			D)	none of the above
19		The combination of an IP address and a port number is called a ____________.
			A)	transport address
			B)	network address
			C)	socket address
			D)	none of the above
20		To use the services of UDP, we need ________ socket addresses.
			A)	four
			B)	two
			C)	three
			D)	none of the above
21		UDP packets are called __________ .
			A)	user datagrams
			B)	segments
			C)	frames
			D)	none of the above
22		UDP packets have a fixed-size header of _______ bytes.
			A)	16
			B)	8
			C)	40
			D)	none of the above
23		UDP packets are encapsulated in ___________ .
			A)	an Ethernet frame
			B)	an TCP segment
			C)	an IP datagram
			D)	none of the above
24		UDP uses ________ to handle outgoing user datagrams from multiple processes on one host.
			A)	flow control
			B)	multiplexing
			C)	demultiplexing
			D)	none of the above
25		UDP uses _______ to handle incoming user datagrams that go to different processes on the same host.
			A)	flow control
			B)	multiplexing
			C)	demultiplexing
			D)	none of the above