Answer:
The answer to this question is given below is the explanation section.
Explanation:
Computer can process and store data.It can easily store large amount of data and process the data very fast but it is not the source of information it serve as a store of information because it store information and whenever we need any information we can retrieve that information from computer memory.in this way computer is s source of information.
Wide Area Network also known as WAN
Answer:
Option D is correct.
Explanation:
Cassandra labeling information with such a gravestone indicates should restart transmitting an erase request to such a duplicate that had been down earlier of deletion.
Cassandra may not instantly delete information labeled for removal from disc the removal of identified information takes place throughout compaction a deleted section may reappear when a maintenance is never regularly carried out.
Wiki is the correct answer