单项选择题
A. 255.255.255.192
B. 255.255.255.224
C. 255.255.255.240
D. 255.255.255.248
E. None of the above
多项选择题 Which two of the addresses below are available for host addresses on the subnet 192.168.15.19/28?()
单项选择题 How do you express the binary number 10110011 in decimal form?()
单项选择题 The MAC address for your PC NIC is: C9-3F-32-B4-DC-19. What is the address of the OUI portion of this NIC card, expressed as a binary number?()