Computer Networking
You have a network with a subnet of 172.16.17.0/22. Which is the valid host address?

172.16.20.1 255.255.254.0
172.16.18.255 255.255.252.0
172.16.0.1 255.255.240.0
172.16.17.1 255.255.255.252

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Computer Networking
Two computers that communicate with each other use a simple parity check to detect errors for ASCII transmissions. Which of the following events will always lead to an undeleted error?

one bit or any odd number of bits inverted in a byte during transmission
two bits or any even number of bits inverted in a byte during transmission
two bits or any even number of bits inverted in a block during transmission
None of these
one bit or any odd number of bits inverted in a block of data during transmission

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