Objective 2.04 Given a Scenario Select the Appropriate Deployment Type: Screening Mode, DNS Delegation, Caching Resolver, and DNS 6 to 4 302 Practice Questions (Page 2)

Questions 6–10

1. 6foundation · easy

   A company wants to deploy BIG-IP DNS to improve the performance of its existing authoritative DNS infrastructure by answering queries from a local cache while still forwarding unresolved queries to the original DNS servers. Which deployment type matches this requirement?

   • AScreening mode
   • BDNS 6 to 4
   • CDNS delegation
   • DCaching resolver
   Reveal Solution Discussion Select an answer first
2. 7foundation · easy

   In a DNS delegation deployment, what is the role of the BIG-IP DNS system?

   • AIt becomes the authoritative server for a delegated zone.
   • BIt acts as a caching-only resolver for internal clients.
   • CIt translates IPv6 addresses to IPv4 for DNS queries.
   • DIt forwards all queries to an upstream ISP resolver.
   Reveal Solution Discussion Select an answer first
4. 8foundation · easy

   When is DNS 6 to 4 deployment most applicable?

   • AWhen an organization wants to delegate a subdomain to another DNS server.
   • BWhen an organization has IPv6-only clients that need to access IPv4-only services.
   • CWhen an organization wants to filter DNS queries based on geographic location.
   • DWhen an organization wants to cache DNS responses for a mix of IPv4 and IPv6 clients.
   Reveal Solution Discussion Select an answer first
5. 9application · medium

   A small branch office has a slow WAN link and frequently resolves the same set of public hostnames. The company wants to reduce DNS lookup latency for users at this branch and decrease the load on the upstream DNS servers. There is no requirement for GSLB or authoritative DNS at the branch. Which deployment type should be implemented at the branch office?

   • ADNS 6 to 4
   • BScreening mode
   • CDNS delegation
   • DCaching resolver
   Reveal Solution Discussion Select an answer first
6. 10application · medium

   An organization is deploying BIG-IP DNS to manage GSLB for its primary domain 'example.com'. The existing DNS infrastructure is split across multiple internal servers, and the team wants BIG-IP DNS to be the authoritative source for the domain so it can directly control all DNS records and GSLB responses. The team also wants to use ZoneRunner to simplify record management. Which deployment type and record-management approach should be used?

   • ADNS delegation with ZoneRunner for zone transfers
   • BDNS 6 to 4 with ZoneRunner for IPv6 records
   • CScreening mode with manual record creation
   • DCaching resolver with ZoneRunner for forwarding
   Reveal Solution Discussion Select an answer first