Answer : C,D,E
Explanation: #show ip mroute
Which two statements regarding Auto RP operations and implementations are correct?
Answer : A,D
Explanation: Auto-RP Automatic route processing (Auto-RP) is a feature that automates the distribution of group- to-RP mappings in a PIM network. This feature has these benefits: It is easy to use multiple RPs within a network to serve different group ranges. It allows load splitting among different RPs. It facilitates the arrangement of RPs according to the location of group participants. It avoids inconsistent, manual RP configurations that might cause connectivity problems. Multiple RPs can be used to serve different group ranges or to serve as hot backups for each other. To ensure that Auto-RP functions, configure routers as candidate RPs so that they can announce their interest in operating as an RP for certain group ranges. Additionally, a router must be designated as an RP-mapping agent that receives the RP- announcement messages from the candidate RPs, and arbitrates conflicts. The RPmapping agent sends the consistent group-to-RP mappings to all remaining routers. Thus, all routers automatically determine which RP to use for the groups they support auto- rp candidate-rp To configure a router as a Protocol Independent Multicast (PIM) rendezvous point (RP) candidate that sends messages to the well-known CISCO-RP-ANNOUNCE multicast group (188.8.131.52), use the auto-rp candidaterp command in PIM configuration mode. To return to the default behavior, use the no form of this command. auto-rp candidate-rp type interface-path-id scope ttl-value [ group-list access-listname ] [ interval seconds ] [bidir] no auto-rp candidate-rp type interface-path-id scope ttl-value [ group-list access-listname] [ interval seconds ] [bidir]
Which two options are characteristics ofconfiguration templates used by Cisco IOS XRto
optimize BGP peering implementations? (Choose two.)
Answer : C,D
Answer : A,E
Explanation: #show ip bgp
Which two BGP mechanisms are used to prevent routing loops when using a design with
redundant route reflectors? (Choose two.)
Answer : A,C
Explanation: http://www.cisco.com/en/US/docs/ios_xr_sw/iosxr_r3.7/routing/configuration/guide/rc37bgp .html As the iBGP learned routes are reflected, routing information may loop. The route reflector model has the following mechanisms to avoid routing loops: Originator ID is an optional, nontransitive BGP attribute. It is a 4-byte attributed created by a route reflector. The attribute carries the router ID of the originator of the route in the local autonomous system. Therefore, if a misconfiguration causes routing information to come back to the originator, the information is ignored. Cluster-list is an optional, nontransitive BGP attribute. It is a sequence of cluster IDs that the route has passed. When a route reflector reflects a route from its clients to nonclient peers, and vice versa, it appends the local cluster ID to the cluster-list. If the cluster-list is empty, a new cluster-list is created. Using this attribute, a route reflector can identify if routing information is looped back to the same cluster due to misconfiguration. If the local cluster ID is found in the cluster-list, the advertisement is ignored.
A network architect is responsible for the company's multicast network domain design.
Which multicast component acts as a meeting place for sources and receivers?
Answer : C
A network engineer for an ISP wants to reduce the number of iBGP adjacencies. A merge
is taking place with another ISP network, so the network engineer needs to make both
ASNs look like a single network for the Internet. Which BGP technology is most suitable?
Answer : B
Answer : C,E,F
Explanation: #sh ip bgp | be Network #sh ip bgp #show ip bgp neighbors
In secure multicast, which protocol is used to distribute secure keys to a multicast group?
Answer : D
Refer to the exhibit.
Answer : B
Refer to the exhibit.
Answer : D
With IPv6 multicast, which feature can be used as a replacement method for static RP
Answer : D
On Cisco IOS-XR, which BGP configuration group allows you to define address-family
independent commands and address-family dependent commands for each address
Answer : A
Explanation: Commands relating to a peer group found in Cisco IOS Release 12.2 have been removed from Cisco IOS XR software. Instead, the af-group, session-group, and neighbor-group configuration commands are added to support the neighbor in Cisco IOS XR software: The af-group command is used to group address family-specific neighbor commands within an IPv4 or IPv6 address family. Neighbors that have the same address family configuration are able to use the address family group name for their address family- specific configuration. A neighbor inherits the configuration from an address family group by way of the use command. If a neighbor is configured to use an address family group, the neighbor will (by default) inherit the entire configuration from the address family group. However, a neighbor will not inherit all ofthe configuration from the address family group if items are explicitly configured for the neighbor. The session-group command allows you to create a session group from which neighbors can inherit address family-independent configuration. A neighbor inherits the configuration from a session group by way of the use command. If a neighbor is configured to use a session group, the neighbor (by default) inherits the session group's entire configuration. A neighbor does not inherit all the configuration from a session group if a configuration is done directly on that neighbor. The neighbor-group command helps you apply the same configuration to one or more neighbors. Neighbor groups can include session groups and address family groups. This additional flexibility can create a complete configuration for a neighbor. Once a neighbor group is configured, each neighbor can inherit the configuration through the use command. If a neighbor is configured to use a neighbor group, the neighbor (by default) inherits the neighbor group's entire BGP configuration. However, a neighbor will not inherit all of the configuration from the neighbor group if items are explicitl
Refer to the Cisco IOS DHCPv6 configuration shown in the exhibit.
Answer : A
Explanation: Server Configuration In Global Configuration Mode ipv6 unciast-routing ipv6 dhcp pool <pool name> address prefix <specify address prefix> lifetime <infinite> <infinite> dns-server <specify the dns server address> domain-name <specify the domain name> exit In Interface Configuration Mode ipv6 address <specify IPv6 Address> ipv6 dhcp server <server name>rapid-commit Client Configuration In Global Configuration Mode enable configure terminal ipv6 unicast-routing In Interface Configuration Mode ipv6 address dhcp rapid commit ipv6 enable exit