F5
101 · Question #455
101 Question #455: Real Exam Question with Answer & Explanation
The correct answer is A: DNS Express. DNS Express is a feature in F5 BIG-IP GTM that loads DNS zone data into memory, allowing it to serve queries far faster and at higher volume than traditional DNS servers like BIND.
Question
Select the best word or phrase to complete the following sentence. Using the _______ feature in GTM, F5's Application Delivery Firewall solution can handle a significantly higher number of queries than traditional DNS servers.
Options
- ADNS Express
- BBIND
- CSite availability request
- DLocation-based routing
Explanation
DNS Express is a feature in F5 BIG-IP GTM that loads DNS zone data into memory, allowing it to serve queries far faster and at higher volume than traditional DNS servers like BIND.
Common mistakes.
- B. BIND is a traditional DNS server software that GTM can query or pull zone data from - it is a source of zone data, not a GTM feature that improves query capacity.
- C. Site availability request is not a recognized GTM feature name and has no relevance to DNS query volume or performance.
- D. Location-based routing is a GTM load-balancing method for directing users to resources based on geographic proximity, not a feature related to DNS query throughput.
Concept tested. F5 GTM DNS Express high-performance query handling
Reference. https://techdocs.f5.com/en-us/bigip-14-1-0/big-ip-dns-implementations/using-dns-express.html
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