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[多选] After replacing the NIC card of a PC on the LAN, your Cisco switch shows a new MAC address is attached to that port. Which of the following answer choices below correctly describe a MAC address?()

A . It is a globally unique IP address.
B . It is a globally unique 48 bit address
C . It is provided by the manufacturer of the NIC.
D . It is used as part of the IPX/SPX configuration.
E . It is a logical address.

Refer to the exhibit. Which two statements are true?() DHCPDISCOVER packets will reach the DHCP server.。 The router will not forward DHCPDIS COVER packets because it has not been configured to do so.。 This configuration is applied to interface Fa0/1.。 DHCPDISCOVER packets will not reach the DHCP server because DHCPDISCOVER packets are broadcasts.。 DHCPDISCOVER packets will not reach the DHCP server because ports 67 and 68 have not been explicitly allowed by the ip forward - protocol command.。 This configuration is applied to interface Fa0/0.。 安全阀弹簧刚度的极限偏差为()。 ±5%。 ±10%。 ±15%。 ±20%。 ()对本行政区域内的消防工作实施监督管理,并由()负责实施。 县级以上地方人民政府公安机关本级人民政府公安机关消防机构。 县级以上地方人民政府本级人民政府公安机关。 县级以上地方人民政府本级人民政府公安机关消防机构。 县级以上地方人民政府公安机关本级人民政府公安机关消防机构和公安派出所。 复色是泛指两种原色和三种间色以外的所有色彩。 噪音防护的途径有()。 声源上降低噪声;。 传递途径上降低噪声;。 个体防护;。 没有办法防护。 After replacing the NIC card of a PC on the LAN, your Cisco switch shows a new MAC address is attached to that port. Which of the following answer choices below correctly describe a MAC address?()
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