Answer:
Changing the customer number on a record in the Orders table to a number that does not match a customer number in the customer table would violate referential integrity.
If deletes do not cascade, deleting a customer that has orders would violate referential integrity.
If deletes cascade, customer can be deleted and all orders for that customer will automatically be deleted.
Answer:
computer virus is an spreading disease in a computer
Explanation
a virus can be spread through many ways by servers , wifi ,and the cloud
so its better to have an safe and secure firewall by your domain or you could use cloud computing to test viruses
it also can spread pretty fast so u better have a good antivirus
Answer:
802.11a
Explanation:
802.11a supports bandwidth of 54 Mbps in a regulated frequency spectrum of 5 GHz. 802.11a also referred to as Wi-fi 2. 802.11a is basically costs higher than 802.11b though both were created at the same time. Hence 802.11b is more popular than 802.11a . All of them are developed by IEEE.
no it is not but u will need a ethernet cord
The second generation of home consoles occurred from (1976-1988) at this time the most popular and consoled regarded as best was the Atari 2600
