A CRS router that runs Cisco IOS XR has dual routing processors installed. Which solution should be implemented to prevent OSPF adjacency flapping if the primary routing processor fails? A. NSR B. OSPF Fast Timers C. OSPF RE Sync D.…
Which command set implements BGP support for NSF/SSO on Cisco IOS XE between a PE and a route reflector? A. On RR:router bgp 300 no synchronization bgp log-neighbor-changes bgp graceful-restart restart-time 120 bgp graceful-restart stalepath-time 360 bgp graceful-restart neighbor 10.20.20.2…
In which four ways does DHCPv6 differ from DHCPv4? (Choose four.) A. DHCPv6 uses the same message types as DHCPv4. B. DHCPv4 functions without external protocols. C. A host discovers a DHCPv6 server by using a DHCP Discover packet. D.…
Which two specific characteristics categorize traceroute in an IPv6 routing environment? (Choose two.) A. Traceroute can show the path to reach any destination IPv6 address. B. Traceroute returns an error for a link-local IPv6 address. C. Traceroute is based on…
Which two actions result when a network administrator attempts to ping an IPv6 host on the LAN? (Choose two.) A. ARP is used to determine the MAC address of the destination host. B. Neighbor Discovery is used to determine the…
An engineer is providing DNS for IPv6 over a currently working IPv4 domain. Which three changes are needed to offer DNS functionality for IPv6? (Choose three.) A. Define a new record that stores the 128-bit IPv6 address. B. Expand the…
Which two methods represent IPv6 tunneling implementations? (Choose two.) A. IPv6 over GRE tunneling B. manually configured tunnels C. automatic tunnels D. 6to4 tunneling E. IPv6 over an IPv4 tunnel over MPLS
In which three cases is a dual-stack IPv6/IPv4 router required? (Choose three.) A. tunnel endpoint routers in the case of IPv6 over GRE B. transit routers in case of an IPv6 over GRE implementation C. 6to4 implementation border routers D.…
Which two options are advantages of an IPv6 dual-stack implementation in an enterprise environment? (Choose two.) A. simplifies the route redistribution policies complexity B. requires IPv6-to-IPv4 translation on the uplinks to the service providers C. provides built-in support for Kerberos…
Which command configures a Source Specific Multicast on a Cisco IOS XR router? A. configuremulticast-routing address-family ipv4interface all enableexitrouter igmpversion 3commit B. configuremulticast-routing address-family ipv4interface all enableexitrouter igmpversion 2commit C. configuremulticast-routing address-family ipv4interface all enableexitrouter igmpversion 1commit D. configureinterface all…