<span>An attribute in a relation of a database that serves as the primary key of another relation in the same database is called a
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Answer:
Command Operations
Explanation:
Space Operation specialist requires special training for aircraft and its operations along with satellite controls. Initially when a graduate joins the training he is required to understand command operations of aircraft. He can then use his skills to learn command operation of spacecraft and then will be promoted to learn satellite controls.
Since java.util.PriorityQueue doesn't use the Cloneable interface, I think it's safe to say that Serializable interfaces are implemented in all instances.
Answer
The senders PC is using UDP protocol
Explanation
UDP is the User Datagram Protocol which is used as an alternative communication protocol to the TCP which is used primarily for establishing low latency and loss of tolerating connections between applications on the internet UDP is normally used by the programs running on different computers on a network. Its purposes is to send short messages which are datagrams. It is not much reliable because of its occasional loss of packet. Due to this packet loss the recipient is not guaranteed that the data being streamed will not get interrupted. This is because If a router on the Internet starts getting overloaded, or a packet gets corrupted due to interference or anything, the packet will be dropped unlike the TCP (Transmission control protocol)which resend the packets and keeps re sending. The UDP does not resend the packets which are dropped. Once they are dropped that all.
In the scenario in which Derek Miller's social media post is different than most since Miller had his family and friends write a post after he died with the letter he wrote. Hope this is the answer and would be of help.
