Free Implementing Cisco Service Provider Advanced Routing Solutions 300-510 Exam Practice Test

An engineer is troubleshooting slow performance issues on a customer's network after the last multicast configuration change was applied on it While checking the running configuration on the router the engineer notices there are many ip igmp join-group commands applied on several interfaces of the router which caused the high CPU utilization usage. What action must the engineer take to solve this issue?

• Configure ip igmp static-group command on all interfaces
• Remove ip igmp join-group command on all unnecessary interfaces
• Configure all router interfaces to be process-switched by increasing the query interval
• Remove unnecessary members from the IGMP group

What is the difference between a source tree and a shared tree in a multicast environment?

• To route traffic from source to receiver a source tree uses a link-state routing protocol and a shared tree uses a distance-vector routing protocol.
• A source tree has its root at the source, and a shared tree has its root at a designated rendezvous point.
• To stream multicast from source to receiver, a source tree uses PIM-SM and a shared tree uses PIM-DM.
• Source trees are the default type for bidirectional PIM. and PIM-DM uses shared trees by default.

What is the purpose of a BGP confederation?

• It limits the number of routes a device receives from its peers, which reduces CPU load.
• It improves service by increasing the number of simultaneous iBGP peering sessions.
• It redirects traffic away from route reflectors, which reduces their operating load.
• It reduces the number of iBGP peers and increases stability.

Which keyword is used with the match route-type command to redistribute the external BGP and IGP routes using route map?

• match route-type type-1
• match route-type nssa-external
• match route-type type-2
• match route-type external

An engineer is troubleshooting a connectivity issue across the MPLS network and is verifying the forwarding behavior of packets. Which table does the engineer look at to verify the forwarding behavior of an IP packet as it enters the MPLS network at the ingress LSR?

• LFIB
• LIB
• RIB
• FIB

How does SRv6 function on the control plane?

• It enables SRH-capable nodes to terminate IPv6 packets at the network egress to carry the SRv6 locator.
• The Ingress node of the SR domain adds a uSlD format IPv6 header to carry the SRv6 locator.
• The ingress node of the SR domain swaps the SRv6 header for the IPv6 header
• The egress node of SR domain imposes a new outer header

In a PIM-SM environment, which mechanism determines the traffic that a receiver receives?

• The receiver explicitly requests its desired traffic from the RP on the shared tree.
• The receiver explicitly requests traffic from a single source, which responds by forwarding all traffic.
• The RP on the shared tree floods traffic out of all PIM configured interfaces.
• The receiver explicitly requests traffic from each desired source, which responds by sending all traffic.

What is the difference between RPL and route-maps?

• Unlike RPL. route-maps are supported with IPv4 address families only
• Unlike route-maps, only RPL supports extcommunity sets to group extended communities.
• Unlike RPL. route-maps are designed for BGP protocol only.
• Unlike route-maps, only RPL is designed for bulk configuration of multiple devices.

Which statement about enabling segment routing for IGPs is true?

• Segment routing must first be enabled under then routing process and then globally
• Segment routing must first be enabled globally and then under the routing process
• Segment routing can be enabled only under the routing process
• Segment routing can be enabled only globally

An ISP has an MPLS VPN-based network with 12 PE routers. How many peerings are required between the 12 routers if the engineer has not configured route reflectors?

• 60
• 66
• 78
• 84