X-Modem
A file transfer protocol, written in 1977 by Ward Christiansen. This protocol was effective but slow. Later versions (X-Modem2 and X-Modem1K) were also introduced.
We offer a wide variety of live and on demand courses covering 2G, 3G, 4G and 5G, RAN and core-focused training, complementary technologies including Wi-Fi, security and packet transport networks.
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