Lab Analysis 1. Janaye wants you to explain why DNS is said to be hierarchical. Can you help her out? 3. 2. Owen would like to know the purpose of the DNS resolver cache. What would you tell him? Robyn is interested in understanding the purpose of the nslookup utility. How do you respond? Charles wants to know why an NS query doesn't return an IP address. Can you explain it to him? 5. Alexandria wants to know what a zone is in relation to configuring a DNS server. What's your response? 4. Key Term Quiz Use the terms in this list to complete the sentences that follow. A FQDN (fully qualified domain name) ipconfig /displaydns ping 1. When troubleshooting DNS, you could use the _ 2. The 5. The ipconfig /flushdns nslookup your DNS server. record maps a name to an IPv4 address. 3. You can run the_ utility with the to test if DNS is configured correctly. If this task returns an error, you can run the command with the IP address to further clarify if there is a problem with DNS. 4. The utility to query a DNS server. command removes entries from RAM. command shows the names and IP addresses that have been resolved for you by

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Cloud Computing

Technology that makes use of the remote service over the internet to manage, access and store data online instead of local drives is known as cloud computing. Instead of maintaining physical servers’ data centers, users can use technology services. The data includes files, documents, images, video, audio, etc. However, the cloud refers to the internet or network.