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N10-005 · Question #772
N10-005 Question #772: Real Exam Question with Answer & Explanation
The correct answer is A: load balancing. Round-robin DNS distributes client requests across multiple server IP addresses by cycling through a list of DNS records, functioning as a basic form of load balancing.
Question
A public website using round robin DNS is an example of:
Options
- Aload balancing
- BQoS
- CCaching engines
- DTraffic shaping
Explanation
Round-robin DNS distributes client requests across multiple server IP addresses by cycling through a list of DNS records, functioning as a basic form of load balancing.
Common mistakes.
- B. QoS (Quality of Service) prioritizes specific types of network traffic to manage bandwidth and latency, and does not distribute requests across multiple servers.
- C. Caching engines store frequently requested content closer to the user to reduce origin server load, which is a different mechanism from distributing DNS-based requests.
- D. Traffic shaping controls the rate and flow of network traffic to enforce bandwidth policies, and is not related to distributing DNS queries across multiple hosts.
Concept tested. Round-robin DNS as load balancing mechanism
Reference. https://learn.microsoft.com/en-us/windows-server/networking/dns/deploy/dns-load-balancing
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