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Which type of DNS record is used by mail servers to determine where to send e-mail?

CNAME record

A record

SMTP record

MX record

Mail Exchange (MX) records are DNS records that are necessary for delivering email to your address. In simple DNS terms, an MX record is used to tell the world which mail servers accept incoming mail for your domain and where emails sent to your domain should be routed to. If your MX records do not point to the correct location, you will not receive email

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fdecomite wikipedia → MX Resource Record

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Answers by country

Australia

4%

4%

4%

88%

25

Republic of Ireland

27%

0%

27%

45%

11

the United States

3%

6%

44%

41%

29

the United Kingdom

21%

0%

47%

30%

23

Germany

13%

10%

50%

24%

130

Greece

7%

7%

61%

23%

13

Poland

26%

14%

36%

22%

1375

Austria

33%

7%

37%

22%

27

Switzerland

15%

15%

55%

15%

20

India

18%

3%

62%

14%

27

Radio waves and microwaves are used in which of the following communications?

A NIC is ....

A computer card that offers a modem connection

A computer card that offers dedicated full time access to the internet

A computer card that offers as needed access to the internet

A computer card that offers a local area network

Social Networking involves communication between;

A human and a computer

Two or more people

A computer and a router

In case of fiber-optic cables, which transmission mode is used for transmitting data over long distances?