Answer: The SFD is the eight-bit (one-byte) value that marks the end of the preamble, which is the first field of an Ethernet packet, and indicates the beginning of the Ethernet frame.
Answer:
C. sqrt(Math)
Explanation:
All but one of options A to E are is not a static method.
Only option C is a static method. The sqrt() is a static method of Math, that can always be used as Math.sqrt() is used;
The Math class defines all of its methods to be static. Invoking Math methods is done by using Math as a method rather than a variable of type Math; this means that sqrt(Math) doesn't rely on instance variables and don't need to be overridden, unlike others.
Lastly, sqrt(Math) is a static method because unlike other options, it is an utility method, and it is relevant to computations on primitive data types.
The purpose of the static method is in large part to offer a standard library of functions, and it doesn't need to be applied directly to an object.
Answer:
Absolutely yes.
Explanation:
IoT is an acronym for Internet of Things. This is a system of network devices connected together in order to transmit data over the internet. And since communication of these devices is over the internet, there's a need for some protocols for control and moderation. Hence, the need for IoT governance frameworks.
Some of the aspects that should be governed by these frameworks are;
i. Data confidentiality:
Data such as Social Security Numbers, Bank Verification Numbers and Credit card details, that are being transmitted in an IoT system should be assured of protection from unwanted usage or access.
ii. Data integrity:
These data should also be assured of consistency and accuracy over a long period of time.
iii. Accountability:
When there is a breach or some sort of mishappening, there has to be a body that would be held accountable.
A. Data management software.
