Answer:
If we delete record number 15 in a primary table, but there's still a related table with the value of 15, we end up with an orphaned record. Here, the related table contains a foreign key value that doesn't exist in the primary key field of the primary table. This has resulted in an “orphaned record”.
Answer:
prevent outsiders from using its information network.
Explanation:
The firm would use a portal to create a network or intranet for all its information because only employees would have access to it.
Answer: D) DHCP snooping
Explanation:
DHCP stand for the dynamic host configuration protocol and it is basically use as the DHCP server. It provide the IP address to each device in the network and it is used to communicate with the other IP network.
According to the question, the student device basically receive the IP network and it is an unauthorized DHCP server which uses denial of service attack for several purposes.
DHCP snooping is basically use to prevent from such unauthorized device which gives the IP address to the clients. DHCP is the two layer security system technology that is bulit in the operating system.
