1. DNS protocol can run over UDP or TCP. Most DNS servers use UDP consuming fewe

Question

1. DNS protocol can run over UDP or TCP. Most DNS servers use UDP consuming fewer server resources. When is using TCP useful for DNS? How can you force utilization of TCP with DNS within your enterprise network?

2. Quality of Service (QoS) is important for availability of network services. Yet wireless transmissions being sent by radio waves have potential of interference from many sources. Pick a wireless standard and discuss techniques used for QoS to appropriately deliver best effort availability withing your enterprise network.

3, Network security mechanisms are important for confidentiality, integrity & availability (CIA) of network communications. Discuss considerations to deliver network security against known network vulnerabilities and provide CIA of organizational information accessible through enterprise networks. Explain why you are confident in your recommendations to protect your enterprise networks.

Explanation / Answer

Hi,

Since you have asked 3 questions, I am gonna answer only one of them (first one). for other questions, please ask seperately.

1) TCP is useful for DNS when the size of the request/response is greater than a single packet. The Transmission Control Protocol (TCP) is used when the response data size exceeds 512 bytes, or for tasks such as zone transfers.

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