單項選擇題請把默認(rèn)掩碼是255.255.255.0的五個C類網(wǎng):210.1.170.0,210.1.171.0,210.1.172.0,210.1.173.0,210.1.174.0,集成到一個網(wǎng)中,它們的掩碼是多少?()
A.255.255.240.0
B.255.255.255.240
C.255.255.255.224
D.255.255.248.0
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1.單項選擇題請把“202.109.203.17”轉(zhuǎn)換為二進(jìn)制是多少?()
A.00111101.10000111.10010110.01010001
B.11000001.10100011.10010000.00000101
C.11001010.01101101.11001011.00010001
D.10000001.00000011.10010000.00000100
2.單項選擇題請把“11010010.01001001.01000000.00000001”轉(zhuǎn)換為十進(jìn)制的IP地址是多少?()
A.192.168.32.1
B.172.64.16.1
C.199.54.66.1
D.210.73.64.1