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101 · Question #455

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 tha

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.

Section 2: F5 Solutions and Technology

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

How the community answered

(55 responses)
  • A
    89% (49)
  • B
    7% (4)
  • C
    2% (1)
  • D
    2% (1)

Why each option

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.

ADNS ExpressCorrect

DNS Express loads authoritative zone data from a BIND server directly into BIG-IP GTM's high-performance memory cache, enabling the system to respond to DNS queries at wire speed without forwarding to an external DNS server. This architecture allows GTM to handle orders of magnitude more queries per second than a traditional DNS server, making it the correct answer for dramatically increasing query throughput.

BBIND

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.

CSite availability request

Site availability request is not a recognized GTM feature name and has no relevance to DNS query volume or performance.

DLocation-based routing

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

Source: https://techdocs.f5.com/en-us/bigip-14-1-0/big-ip-dns-implementations/using-dns-express.html

Topics

#DNS Express#GTM#DNS performance#Application Delivery Firewall

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