It is often irritating to have to wait for DNS records to update around the world when you change DNS entries. You could prevent this delay by setting the TTL to a small number. Why is setting the TTL to a small number a bad idea?
What will be an ideal response?
Setting the TTL to a small number prevents DNS caches from holding DNS
entries for very long. Small TTL values place a large load on the local DNS
server because every query about the domain is forwarded to the local
server.
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