A BIG-IP DNS profile has BIND enabled, DNS cache enabled, GTM disabled, and DNS Express disabled. A client sends a query for a domain that is not in the cache and not in BIND's zone data. What will happen?

The query is dropped because BIND cannot answer

The query is answered from the DNS cache

BIND forwards the query to its configured resolver

A BIG-IP DNS profile has GTM enabled, DNS Express disabled, and DNS cache disabled. A client sends a query for a domain that is configured as a wide IP in GTM. What will the response be?

A GTM-selected IP address based on load-balancing logic

What is the primary role of DNS Express in a BIG-IP DNS profile?

To integrate with the underlying BIND server for query processing.

To cache responses from upstream servers.

To forward queries to the GTM process for load balancing.

To serve authoritative responses from memory for configured zones.

How does DNS Express impact query resolution for authoritative zones?

It forwards queries to the GTM process for wide-IP resolution.

It answers queries directly from memory, reducing upstream query load.

It caches responses from previous queries to speed up future responses.

It sends all queries to the BIND server for processing.

F5Certified Technology Specialist, BIG-IP DNS

Domain 1Objective 13

Objective 1.13 Given a Scenario Determine the Impact of a Custom DNS Profile for Various Types of Queries, Determine What Response Will Be Given and Where It Will Come From 302 Practice Questions (Page 4)

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Questions 16–20

16application · medium
A BIG-IP DNS profile has BIND enabled, DNS cache enabled, GTM disabled, and DNS Express disabled. A client sends a query for a domain that is not in the cache and not in BIND's zone data. What will happen?
Select an answer first
17foundation · easy
A BIG-IP DNS profile has DNS cache enabled, DNS Express disabled, GTM disabled, and BIND enabled. A query arrives for a record that is not in the cache. Where will the response come from?
Select an answer first
18application · medium
A BIG-IP DNS profile has GTM enabled, DNS Express disabled, and DNS cache disabled. A client sends a query for a domain that is configured as a wide IP in GTM. What will the response be?
Select an answer first
19foundation · easy
What is the primary role of DNS Express in a BIG-IP DNS profile?
Select an answer first
20foundation · easy
How does DNS Express impact query resolution for authoritative zones?
Select an answer first

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