The Ezonexam network administrator has just issued the "switchport trunk native vlan 998"
A. It designates VLAN 998 as the default for all unknown tagged traffic
B. It designates VLAN 998 for untagged traffic
C. It blocks VLAN 998 traffic from passing on the trunk
D. It creates a VLAN 998 interface
E. None of the above
查看答案
Which of the following statements correctly describe the differences between half-duplex and full-duplex Ethernet？ (Select two answer choices.)
A. Full-duplex Ethernet uses CSMA/CD to prevent collisions.
B. Half-duplex Ethernet uses a loopback circuit to detect collisions.
C. A full-duplex Ethernet card allows 20Mbps for data transmission.
D. Full-duplex Ethernet makes use of two pairs of wires for data.
E. An Ethernet hub can operate both half and full duplex simultaneously.
因素分析法在应用时必须注意因素分解的关联性、因素替代的顺序性、顺序替代的连环性和计算结果的准确性。 ()
A. 正确
B. 错误
协议回购，是指公司以协议价格直接向一个或几个主要股东回购股票。协议价格一般高于当前的股票市场价格。 ()
A. 正确
B. 错误
The corporate head office of Ezonexam has a teleconferencing system that uses VOIP (voice over IP) technology. This system uses UDP as the transport for the data transmissions. If these UDP datagrams arrive at their destination out of sequence, what will happen？
A. UDP will send an ICMP Information Request to the source host.
B. UDP will pass the information in the datagrams up to the next OSI layer in the order that they arrive.
C. UDP will drop the datagrams.
D. UDP will use the sequence numbers in the datagram headers to reassemble the data in the correct order.
E. UDP will not acknowledge the datagrams and wait for a retransmission of the datagrams.
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