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: This means that even though we believe the information is coming from a trusted source, it could still contract a virus due to someone else hacking it or the original sending not being aware of the virus.
Explanation: Just because information comes from a trusted/friendly source does not mean the information is clear of potential threats. Viruses are able to hide in information and the sending may not be aware that the virus is hiding in the information.
Answer:
Pulling related code together in objects is Arrays
Helps programmers when they revisit code or are new to code-- Documentation
Explanation:
This is all I know
They are several weaknesses or disadvantages of file processing
systems but the major weakness is data redundancy and inconsistency. By data
redundancy, I mean duplication of data. There are no better methods to validate
insertion of duplicate data in file systems. Data redundancy can also increase
the chance for errors.
Answer:
Examples of input devices include keyboards, mouse, scanners, digital cameras, joysticks, and microphones.
Explanation:An input device is a piece of computer hardware equipment used to provide data and control signals to an information processing system such as a computer or information appliance.
