A composite primary key<span> is a set of several primary </span>keys<span> that, together, uniquely identifies each record.</span>
Primary keys are used as identifiers of composite entities. In this case each primary key combination is allowed only once in the *:* relationship.
Other case where primary keys are used is as identifiers of weak entities, where the weak entity has a strong identifying relationship with the parent entity.
Answer: review; quality
Explanation:
SQA refers to the ongoing process that can be found in the Software Development Life Cycle whereby the developed software is checked in order to ensure that the desired quality measures are met. The SQA processes is vital as it checks for the quality in every development phase.
The first step of the SQA process is to (review) the software development process. The next step is to set (quality) attributes.
Answer:
HDD technology
Explanation:
You will find that there is a big difference between the SSD and the HDD. The SSD lists out the technical advantages as well as the disadvantages related to HDD, and this has led to the wide use of the SSD rather than the HDD, which is supposed by many being an outdated product. You will find that the SSDs last longer, and they are faster. However, the SSD is more prone to damages as compared to HDD. However, SSD looks like being more advanced considering the above-mentioned advantages, and fewer number of disadvantages. And hence, many people shifted to the SSD from HDD. Remember, SSD stands for solid state drives. And HDD means hard disk drive.
Exel is used for graphing, Word for any type of essay or paper, and Powerpoint for presentations.
Hope this helps!
B. It is a code that creates multiple copies on loading and damages the system
