Of the sample SDN branches that are covered in the text, which offers the greatest degree of centralized control over network devices?
A) APIC-EM
B) ACI APIC
C) Open SDN
C
Explanation: C) The SDN branches discussed include Open SDN (ODL and Cisco OSC), ACI (APIC), and APIC-EM; of these, only the first two offer some amount of centralized control of networking devices. However, the Open SDN solutions offer the highest degree of centralized functionality.
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Which statement is false?
a) Function strcpy copies its first argument into its second argument. b) Function strncpy does not necessarily copy the terminating null character of its second argument. c) A common error is not appending a terminating null character to the first argument of a strncpy when the third argument is less than or equal to the length of the string in the second argument. d) The first character of the second argument of strcat replaces the null character that terminates the string in the first argument.
In most tables, one of the fields uniquely identifies each record and is called the ____.
A. exception B. foreign key C. primary key D. cell