Free 300-410 Exam Braindumps (page: 35)

Page 35 of 156

In which two ways does the IPv6 First-Hop Security Binding Table operate? (Choose two.)

  1. by IPv6 HSRP to make sure neighbors are authenticated before being used as gateways
  2. by various IPv6 guard features to validate the data link layer address
  3. by the recovery mechanism to recover the binding table in the event of a device reboot
  4. by IPv6 routing protocols to securely build neighborships without the need of authentication
  5. by storing hashed keys for IPsec tunnels for the built-in IPsec features

Answer(s): B,C



Refer to the exhibit. The engineer configured and connected Router2 to Router1. The link came up but could not establish a Telnet connection to Router1 IPv6 address of 2001:DB8::1.


Which configuration allows Router2 to establish a Telnet connection to Router1?

  1. ipv6 unicast-routing
  2. permit ICMPv6 on access list INGRESS for Router2 to obtain IPv6 address
  3. permit ip any any on access list EGRESS2 on Router1
  4. IPv6 address on GigabitEthernet0/0

Answer(s): C



An engineer configured Reverse Path Forwarding on an interface and noticed that the routes are dropped when a route lookup fails on that interface for a prefix that is available in the routing table.

Which interface configuration resolves the issue?

  1. ip verify unicast source reachable-via l2-src
  2. ip verify unicast source reachable-via allow-default
  3. ip verify unicast source reachable-via any
  4. ip verify unicast source reachable-via rx

Answer(s): C



Refer to the exhibit. When monitoring an IPv6 access list, an engineer notices that the ACL does not have any hits and is causing unnecessary traffic through the interface


Which command must be configured to resolve the issue?

  1. ip access-group INTERNET in
  2. ipv6 traffic-filter INTERNET in
  3. ipv6 access-class INTERNET in
  4. access-class INTERNET in

Answer(s): B


Reference:

https://www.cisco.com/c/en/us/support/docs/ip/ip-version-6/113126-ipv6-acl-00.html



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