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: • Ensure that the video card is compatible with the expansion slot
• Install video drivers from CD and then install updated drivers from the internet
• Configure the PC to use the integrated graphics if available and needed
Explanation
Your question isn't complete as you didn't put the options but I got the options online and the correct answers have been provided.
The installation and configuration for the high-end video card suitable for gaming will include:
• Ensure that the video card is compatible with the expansion slot
• Install video drivers from CD and then install updated drivers from the internet
• Configure the PC to use the integrated graphics if available and needed
Answer:
Definitely D
Explanation:
When you flip a coin it’s a 50/50 chance. Meaning it’s equal.
The command is : <span>rm [Aa]*[Zz] </span>