IPv6 NAT JN0-637 Practice Questions (Page 2)

Questions 6–10

1. 6foundation · easy

   What is the primary purpose of NAT66 in an enterprise network?

   • ATo provide stateful security by hiding all internal IPv6 addresses behind a single global address.
   • BTo translate between IPv6 and IPv4 to allow communication with legacy IPv4 servers.
   • CTo translate an IPv6 address to another IPv6 address, typically for network renumbering or topology hiding.
   • DTo translate only the prefix of an IPv6 address while preserving the host portion.
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2. 7application · medium

   A service provider is migrating a customer's internal network from a private IPv6 prefix (2001:db8:1::/48) to a new globally routable prefix (2001:db8:2::/48). The customer wants to avoid renumbering all internal hosts and does not require address hiding. They also want to preserve the host portion of each address so that internal logging and monitoring tools continue to work. Which IPv6 translation technique should the Junos device use?

   • ANPTv6
   • BNAT64
   • CNAT66
   • DStatic NAT
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4. 8expert · hard

   A company is deploying IPv6 in a new branch office. The branch has a small number of internal hosts and needs to access the corporate network, which uses a different IPv6 prefix. The company wants to minimize the use of global IPv6 addresses and also wants to preserve the host portion of the internal addresses for logging purposes. Which IPv6 translation technique should be used?

   • ANPTv6
   • BStatic NAT
   • CNAT66
   • DNAT64
   Reveal Solution Discussion Select an answer first
5. 9application · medium

   A network engineer is troubleshooting an NPTv6 configuration on a Junos SRX. The internal network uses prefix 2001:db8:1::/48, and the external network uses prefix 2001:db8:2::/48. The engineer notices that traffic from the internal network is not being translated. Which show command should be used to verify the NPTv6 configuration and translation?

   • Ashow security nptv6 translations
   • Bshow security flow session
   • Cshow security nat source
   • Dshow security nat64 translations
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6. 10expert · hard

   A service provider is deploying NAT64 on a Junos SRX to allow IPv6-only customers to access IPv4-only content. The provider has multiple IPv4 servers and wants to use a single NAT64 prefix for all customers. The provider also wants to ensure that customers can reach the servers using hostnames. Which configuration approach should be used?

   • AConfigure a single NAT64 prefix and a single IPv4 pool, and enable DNS64 for all customer domains.
   • BConfigure a separate NAT64 prefix for each customer and a separate IPv4 pool for each server.
   • CConfigure NAT64 with a static route for each IPv4 server.
   • DConfigure NAT64 without DNS64 and require customers to use IPv4 addresses in the URL.
   Reveal Solution Discussion Select an answer first