Google IT Support Professional:The Bits and Bytes of Computer Networking (Week 4) Networking Services.

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★Network Address Translation★

Q1.NAT addresses concerns over the dwindling IPv4 address space by ___________________.

1. allowing networks to use fewer IP addresses overall.
2. allowing users to move to IPv6 when they want.
3. allowing computers using non-routable address space to communicate with the Internet.
4. performing IP masquerading.

NAT allows networks to use non-routable address space for their internal devices.

Q2.What technique allows for inbound traffic through a NAT?

1. Port preservation
2. Port forwarding
3. Port authority
4. Ephemeral ports

Port forwarding is a technique that allows for inbound traffic through a router configured to NAT.

Q3.The total number of IPv4 addresses is approximately:

1. 4.2 million
2. 4.2 billion
3. 4.2 trillion
4. Uncountable

There are approximately 4.2 billion IPv4 addresses.

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