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The video provides a brief introduction to telephone numbers, explaining their basic concept.

What is the primary purpose of a telephone number?

• To identify a specific phone line

• To provide internet access

• To store contact information

• To serve as a password

Which part of a telephone number typically indicates the geographic region?

• The last four digits

• The area code

• The country code

• The prefix

How does the structure of a telephone number help in routing calls?

• By specifying the call duration

• By indicating the service provider

• By directing the call to the correct region

• By providing a unique identifier for each device

Why are telephone numbers important in modern communication?

• They enable direct and reliable contact

• They replace email addresses

• They are used for data encryption

• They allow for anonymous communication

What is a common feature of telephone numbers across different countries?

• They end with a zero

• They start with a country code

• They are alphanumeric

• They all have the same length