IPv6 NAT JN0-637 Practice Questions (Page 1)

Questions 1–5

1. 1foundation · easy

   What is a key characteristic of NPTv6?

   • AIt is stateful and translates the entire IPv6 address.
   • BIt is stateless and translates only the IPv6 prefix, preserving the host portion.
   • CIt is used to hide the entire IPv6 address for security.
   • DIt is used to translate between IPv6 and IPv4.
   Reveal Solution Discussion Select an answer first
2. 2foundation · easy

   In NPTv6, what happens to the host portion of an IPv6 address during translation?

   • AIt is preserved and remains unchanged.
   • BIt is masked and hidden from the external network.
   • CIt is translated using a stateful mapping table.
   • DIt is replaced with a new host identifier generated by the translator.
   Reveal Solution Discussion Select an answer first
4. 3foundation · easy

   How does NAT64 enable an IPv6-only client to communicate with an IPv4-only server?

   • AThe client uses a tunnel to encapsulate IPv6 packets in IPv4 to reach the server.
   • BThe client sends IPv6 packets to a NAT64 device, which translates them to IPv4 packets and forwards them to the server.
   • CThe client uses a dual-stack interface to communicate directly with the IPv4 server.
   • DThe client sends IPv4 packets to a NAT64 device, which translates them to IPv6 packets and forwards them to the server.
   Reveal Solution Discussion Select an answer first
5. 4application · medium

   A company operates a dual-stack network and wants to hide the internal IPv6 addresses of servers in a DMZ when they communicate with the internal corporate network. The internal network uses ULA addresses (fd00::/8), and the DMZ uses globally routable addresses (2001:db8:10::/64). The company wants to translate the DMZ servers' addresses to a different range when they initiate sessions to internal hosts. Which Junos configuration approach should be used?

   • AConfigure a static route on the SRX to redirect DMZ traffic to the internal network.
   • BConfigure an NPTv6 rule that translates the DMZ prefix to the ULA prefix.
   • CConfigure a NAT64 rule that translates the DMZ servers' IPv6 addresses to IPv4 addresses.
   • DConfigure a stateful NAT66 source NAT rule that translates the DMZ servers' source addresses to a pool of addresses from the internal ULA range.
   Reveal Solution Discussion Select an answer first
6. 5foundation · easy

   Which Junos command displays the current IPv6 NAT translations?

   • Ashow security nat translations
   • Bshow security nat rule
   • Cshow security flow session
   • Dshow security nat pool
   Reveal Solution Discussion Select an answer first