Answer:
(a) alert("Some text");
Explanation:
Required
Determine the code for alert box.
In JavaScript, the syntax is:
1. window.alert("sometext");
or
2. alert("sometext");
From the given options, option (a) shows syntax 2 while other options are inappropriate
Answer:
Option B is the correct answer for the above question.
Explanation:
- The data warehouse is a collection of large data or a database that includes historical and operational or current data. This database can be used to make the decisions for the prospects of the organization.
- The above question asked about to select the database which can collect the historical and operational data from various source. That type of database is a data warehouse that is described above. Hence option B is correct while the other is not because:-
- Option a states about data model which is used to define the database structure.
- Option c states about the relational database which is used to collect only current data.
- Option d states about the DBMS which is used to manage the relational database.
Answer : Monitor may be in sleep/hibernate mode.
<u>Some recommend way to prove the authenticity of an email:</u>
- The coworker as truthful to the company or organization he or she has to check where the same mail is sent long back to the same sender.
- If search on emails sent item if he sends it will be well and good. Some time backup the mail will be help to proven authenticity of an email.
- Sometimes once mail is downloaded into ms-outlook or lotus domino some time mail persists in the mail server.
- He or she can coordinate with the mail server administrator to possible get a log file of sending mail and he can proceed as a record to management.
Answer:
The following program are:
public class Value { // Define a class named Value which is public type
private boolean modified = false; // a Boolean instance variable named 'modified',
private int val;
public Value(int i) { val = i; }
public int getVal() { return val; }
public void setVal(int i) { val = i; modified = true; }
public boolean wasModified() { return modified; }
}
Explanation:
Firstly, a class defines "Value" and then take a Boolean variable "modified" initialize the value false and then take an integer variable "val" and after that we create a constructor taking a parameter in which variable is assigned to the "val" and then we create an integer type function "getVal()" which returns the value of the "val", and then we create a void type function "setVal()" which takes parameter assign to the value to the "val" and we set the value in the "modified" is true and after all we create a Boolean type function, "wasModified()" which give an output true, if the function "setVal()" was called