GTM

Question 1

GTM has 3 types of DNS cache

Answer 1

• transparent cache
• resolver cache
• validating resolver cache

Question 2

GTM has 3 methods of accelerating DNS

Answer 2

• load balanced DNS (tcp/udp 53) against a pool of DNS servers. added in 10.2
• DNS Express, performs zone transfer from a Primary DNS server, and accepts notifies from the Primary DNS server. May use TSIG to secure
• Caching -
• Remote DNS Resolution - if a query does not pertain to a WideIP, a DNS Express zone, or a load balanced pool, or a cache, GTM can forward the query to a

Question 3

Order of options

(when handling a DNS query)

Answer 3

1. is name a Wide-IP?
2. is name in a DNS Express zone?
3. is name in DNS cache?
4. does listener have a pool of DNS servers?
5. 6.