Answer : The securtiy of the password can be maitained by the shadow files such as:-
- max is for the days that represent that the same password can be used without the need for changing it
- min is for the days that represent waiting days before the changing of password after he/she gets a new password
- warn are the days that come with Waring sign that the password is going to expire soon.
For a certain period of time , the user can access the log in when the password has expired . If that period is timed out then there will be no log in option and the account gets disabled.
Answer:
Explanation:
Transitive dependency
In this case, we have three fields, where field 2 depends on field 1, and field three depends on field 2.
For example:
Date of birth --> age --> vote
Partial dependency
It is a partial functional dependency if the removal of any attribute Y from X, and the dependency always is valid
For example:
Course and student these tables have a partial dependency, but if we have the field registration date, this date will depend on the course and student completely, we must create another table with the field registration date to remove this complete dependency.
If we remove or update the table registration date, neither course nor student must not change.
Answer:
B
Explanation:
In an ERD, the Crow Foot Notation Symbols are used with cardinality.
Hope it helps you
Answer:
Going green has several other benefits for companies. These include tax credits and incentives, improved efficiency, healthier workplaces, and cost savings – for instance by printing less, turning lights off in unused rooms and refilling ink cartridges. Reusing items also reduces waste from plastic packaging.
Explanation:
Information that indicates ground air or navy force levels or dispositions is <u>confidential</u> security.
Security for a country's higher organizations is essential for a nation's protection.
Serious information like the nuclear organizations, army, navy, and ground air is at a higher risk for threats and hence requires higher security.
The information in such higher organizations is kept confidential and no third person is allowed access to the code of conduct of such organizations.
If information is leaked from the ground air or from navy force levels then there can be serious consequences for it. Hence, such information is always kept under confidential security.
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