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1 | |
UDP is called a ________________transport protocol. |
| | A) | connectionless, reliable |
| | B) | connection-oriented, unreliable |
| | C) | connectionless, unreliable |
| | D) | None of the choices are correct |
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2 | |
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 choices are correct |
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3 | |
UDP is an acronym for _______. |
| | A) | User Delivery Protocol |
| | B) | User Datagram Procedure |
| | C) | User Datagram Protocol |
| | D) | None of the choices are correct |
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4 | |
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 choices are correct |
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5 | |
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 choices are correct |
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6 | |
The ports ranging from 1,024 to 49,151 are called ___________ ports. |
| | A) | well-known |
| | B) | registered |
| | C) | dynamic |
| | D) | None of the choices are correct |
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7 | |
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 choices are correct |
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8 | |
In the sending computer, UDP receives a data unit from the _______ layer. |
| | A) | application |
| | B) | transport |
| | C) | network |
| | D) | None of the choices are correct |
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9 | |
In the sending computer, UDP sends a data unit to the _______ layer. |
| | A) | application |
| | B) | transport |
| | C) | IP |
| | D) | None of the choices are correct |
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10 | |
UDP and TCP are both _______ layer protocols. |
| | A) | data link |
| | B) | network |
| | C) | transport |
| | D) | None of the choices are correct |
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11 | |
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 choices are correct |
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12 | |
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 choices are correct |
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13 | |
UDP needs the _______ address to deliver the user datagram to the correct application process. |
| | A) | port |
| | B) | application |
| | C) | internet |
| | D) | None of the choices are correct |
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14 | |
A port address in UDP is _______ bits long. |
| | A) | 8 |
| | B) | 16 |
| | C) | 32 |
| | D) | any of the above |
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15 | |
Which of the following does UDP guarantee? |
| | A) | flow control |
| | B) | connection-oriented delivery |
| | C) | flow control |
| | D) | None of the choices are correct |
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16 | |
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 choices are correct |
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17 | |
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 choices are correct |
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18 | |
To use the services of UDP, we need ________ socket addresses. |
| | A) | four |
| | B) | two |
| | C) | three |
| | D) | None of the choices are correct |
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19 | |
UDP packets are called __________ . |
| | A) | user datagrams |
| | B) | segments |
| | C) | frames |
| | D) | None of the choices are correct |
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20 | |
UDP packets have a fixed-size header of _______ bytes. |
| | A) | 16 |
| | B) | 8 |
| | C) | 40 |
| | D) | None of the choices are correct |
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21 | |
UDP packets are encapsulated in ___________ . |
| | A) | an Ethernet frame |
| | B) | an TCP segment |
| | C) | an IP datagram |
| | D) | None of the choices are correct |
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22 | |
UDP uses ________ to handle outgoing user datagrams from multiple processes on one host. |
| | A) | flow control |
| | B) | multiplexing |
| | C) | demultiplexing |
| | D) | None of the choices are correct |
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23 | |
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 choices are correct |
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