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: The exam is 2 hours long.
Explanation:
Answer:
Correct answer is option (2) that is "return".
Explanation:
In any programming language, a variable name can be made up of letters (lower and upper case) and digits. we can also use "_" underscore character for declaring the variables but we cannot use any special character like “$”.We cannot use digits in the beginning of variables name. And we also cannot use reserved keywords of the language like "new","return","while" etc. There should not be space between the variable names. Options 1, 3 and 4 are not violating any of these properties. But in option (2), "return" is a reserved keyword. That is why it is not a valid variable name.
Some example of valid variables name:
foo
BAZ
Bar
_foo42
foo_bar
Some example of invalid variables name:
$foo ($ not allowed)
while ( keywords )
2foo (started with digit)
my foo (spaces )
Answer:
The most probable negative impact that IoT devices can have on users is the increase vulnerability of information technology cybersecurity, being that access can be gained into the system through another device connected to an IoT device from which it is theoretically possible to launch malicious computer codes, using both old and present day hacking technologies, due to the different securities, categories and systems of devices connected to the IoT
Explanation:
The negative impacts of Internet of Things IoT devices on users are
1) Loss of privacy 2) Network complexity increase 3) Increase in the dependence on technology 4) Increased unemployment, 5) Lack of compatibility between devices
It opens a different article depending on what program you on, to accommodate that program.
