Google IT Support Professional:The Bits and Bytes of Computer Networking (Week 6) Troubleshooting and the Future of Networking.

 Don't just copy for the sake of completion. 

Make sure you understand first.

★Digging into DNS★

Q1.One of Level 3's public DNS servers is ____________.

1. 4.2.2.3
2. 8.8.8.8
3. 127.0.0.1
4. 192.168.1.1

Level 3's public DNS servers are 4.2.2.1 through 4.2.2.6

Q2.A DNS resolver tool available on all major desktop operating systems is __________.

1. host
2. tracert
3. ping
4. nslookup

nslookup is available by default on Windows, macOS, and Linux.

Q3.The organization responsible for DNS at a global level is ________.

1. Google
2. RFC
3. ICANN
4. IANA

ICANN is responsible for DNS at a global level

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- Wolf