Answer:
d. If X is NP - complete and Y is in NP then Y is NP - complete.
This can be inferred
Explanation:
The statement d can be inferred, rest of the statements cannot be inferred. The X is in NP complete and it reduces to Y. Y is in NP and then it is NP complete. The Y is not in NP complete as it cannot reduce to X. The statement d is inferred.
Answer:
periodical databases
Explanation:
Among the various databases you can now access in a library, the periodical databases contains the text and other information about articles published in magazines, journal and newspapers.
This database allows you for example to easily search for all articles written about a specific event or person, and it will return you the list of articles you can then read from a single spot, no matter where or when the article was written.
Answer:
A. Define boundaries
C. Deny access
D. Delay access
Explanation:
A barrier is a material or structure used to prevent or block access. Barriers can either be natural or structural and are used for many purposes usually for security reasons. The following are functions of barriers either natural or structural:
- Define areas of boundaries
- Delay or slow access. Example is the use of speed bumps to slow down vehicles.
- Provide access to entrances such as the use of gates
- Deny access to unauthorized personnel and allowing authorized personnel.
It is a programmer's responsibility to contribute to society and human well-being is true.
Explanation:
- It is a programmer's responsibility to contribute to society and human well-being is true.
- The Association for Computing Machinery (ACM) is known as the world's largest educational and scientific computing society.
- It has its own Code of Ethics and another set of ethical principles which were also approved by the IEEE as the known standards of teaching and practicing software engineering.
- Programmers contribute to develop computer systems which can reduce negative impression to the society.
- The negativity includes as threats to safety and health, which can be reduced and make everyday activities and work easier.
- software developers should reduce the risk of harming others due to the coding errors or the security issues which could impact human well-being.
