to review the most important supporting points from the original information
Answer:
var birthday = "12/2/1978";
Explanation:
It does not create a date object named birthday because in this statement the birthday is a string which contains 12/2/1978 a date it is not date object it is a string.All other three options are correct way to create a date object.
var birthday = new Date();
creates a date object with the current date and time.
we can also pass date string in the new Date().So var birthday = new Date("12/2/1978"); is also correct.
we can also pass year,month,day in new Date() In this order only.So option fourth is also correct.
The answer is centralization
A client-server network is a server which acts as one powerful computer that provides information to other sub-ordinate workstations called the client. The biggest benefit of this setup is centralization or the central management of the server. Only a single server functions as a host that all clients request and use. Having a single centrally managed server is cost effective and is easily manageable. This centralized control can also be used to deploy processes, allocate user resources and delegate access permissions easily and effectively.
Answer:
Because of the nature of the source systems ETL functions are challenging.Reasons are as following:-
1. There are various source systems are very and contrasting.
2. There is usually a requirement to deal with source systems on different platforms or Operating Systems.
3. Quality of data is uncertain in many old source systems that have developed gradually over time.
