Answer:
b they have high sensitivity to surrounding sound
Explanation:
tell me it's correct or not
if it's correct so I hope it is helpful for you
but no so I am sorry
Answer: SIP Trunk
Explanation:
The SIP is stand for the session initiation protocol trunk is one of the service that is specifically provided by the service provider and the main purpose of the SIP trucking is to manage the VoIP call process (Voice over IP).
According to the given question, SIP is one of the protocol that allow telephony services for the communication purpose and it also offer the video, Message, media and the voice application and these process are control by using this type of technology.
Therefore, SIP Truck is the correct answer.
Answer:
The trigger code is given below
create trigger F1_Del
after delete on Friend
for each row
when exists (select * from Friend
where ID1 = Old.ID2 and ID2 = Old.ID1)
begin
delete from Friend
where (ID1 = Old.ID2 and ID2 = Old.ID1);
end
create trigger F1_Insert
after insert on Friend
for each row
when not exists (select * from Friend
where ID1 = New.ID2 and ID2 = New.ID1)
begin
insert into Friend values (New.ID2, New.ID1);
end
The correct answer is: Summary
<span>If you only selected fields from a single table in the first screen, then when you click the “Next >” button to continue, you will only need to provide the query with a name and then click the “Finish” button to finish creating the query. If, however, you picked data fields from two or more related tables, then when you click the “Next >” button, you will instead view a second screen which asks if you would like a “Detail” or “Summary” query. You can select the option button for the type of query that you wish to create. If you select “Summary,” then you will be able to click the “Summary Options…” button to open the “Summary Options” dialog box. In this dialog box, you can select what type of summary to perform over a selected field. Make your selections, and then click the “OK” button to return to the “Simple Query Wizard.”</span>
Select summary to show only results of aggregate functions.
Select the aggregate function and the field name of the numeric field in the list box. You can enter as many aggregate functions as you want, one in each row of controls.
Aggregate function
Select the aggregate function.
Field name
Select the numeric field name.
+
Appends a new row of controls.
-
Removes the last row of controls.
