Pass the Cisco CCNP Service Provider 300-510 Questions and answers with CertsForce

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Viewing questions 51-60 out of questions
Questions # 51:

A network administrator is planning an upgrade for a PE router that has BGP peering sessions with several CE routers. The SLA has stringent uptime requirements, so the administrator wants to implement BGP NSR with SSO to provide fast convergence during the upgrade. Which action must the engineer take as part of the NSR implementation?

Options:

A.

Configure a VRF on each CE router on the interface that connects to the PE router.


B.

Configure the bgp graceful-restart command on the PE router.


C.

Configure the clear ip bgp 65514 soft in command on the PE and CE routers.


D.

Configure MPLS on the link between the PE and CE routers.


Expert Solution
Questions # 52:

Refer to the exhibit.

Question # 52

A network engineer configured routers R1 and R5 to run in IS-IS Level 1 mode and router R6 to run in IS-IS Level 2 mode. All other routers are running as Level 1 / Level 2 routers. An engineer expects traffic from R1 to R6 to pass via R2, but IS-IS routing has calculated the best path via R4. Which action corrects the problem?

Options:

A.

Configure all routers as Level 1 routers.


B.

Remove the link metric for the link from router R1 to router R2.


C.

Change the link metric for the link from router R1 to router R2 to 1.


D.

Configure all routers as Level 1 / Level 2 routers.


Expert Solution
Questions # 53:

Question # 53

Refer to the exhibit Networks 172.16.31.0/24 and 172 16 30.0/24 are advertised in area 34. and network 172.22 10.0/24 is advertised in area 0. A recent security review discovered that users connected to routers R1 and R2 have been making unauthorized access to an application running on network 172 16 31 0/24 An engineer determined that routers R1 and R2 are receiving updates for network 17 16 31 0/24 Which action resolves the issue?

Options:

A.

Apply route filtering on routers R3 and R4.


B.

Apply route filtering on router R3 only.


C.

Apply route filtering on routers RI and R2


D.

Apply route filtering on router R4 only.


Expert Solution
Questions # 54:

What is a restriction of 6PE?

Options:

A.

It is implemented only over eBGP peers.


B.

It is implemented only over iBGP peers.


C.

It adds a value of ::FFFf:: on the IPv4 next hop address.


D.

It cannot be implemented on VRFs.


Expert Solution
Questions # 55:

Which IPv6 prefix format defines the destination of a dynamic 6to4 tunnel?

Options:

A.

2001:db8::/32


B.

2002::/16


C.

fe80::/10


D.

ff00::/8


Expert Solution
Questions # 56:

A network engineer is troubleshooting OSPF multiareA. Which Cisco IOS XR feature should the engineer use in order to streamline OSPF issue?

Options:

A.

hierarchical CLI


B.

DR support for topology management


C.

routing process enabled by default on all interfaces


D.

show ip ospf topology command


Expert Solution
Questions # 57:

Question # 57

Refer to the exhibit. This network is deployed with all connected links configured to run IS-IS. The routing protocol is enacted globally on each router, and the network engineer expects full routing Information to be shared among all routers. R5 is receiving routes from R4 but is missing routes from R1. Which action corrects the issue so that all routes are shared among the routers?

Options:

A.

Configure all routers to reside in toe area.


B.

Configure RI and RS as Level 1"Level 2


C.

Configure R3 as a Level 2 we.


D.

Configure R5 in the same as RI,


Expert Solution
Questions # 58:

Which two statements about mapping multicast IP addresses to MAC addresses are true? (Choose two.)

Options:

A.

All mapped multicast MAC addresses begin with 0x0100.5E


B.

The router performs the mapping before it hands the packet off to a switch


C.

All multicast MAC addresses end with 0x0100.5E


D.

The mapping process may generate overlapping addresses, which can cause receivers to receive

unwanted packets


E.

All destination MAC addresses begin with an octet of binary 1s


Expert Solution
Questions # 59:

Question # 59

Refer to the exhibit. R21 is a multicast source sending multicast traffic 224.1.1.1 to R23, with RP22 serving as the rendezvous point inside AS65222. A network engineer noticed that when R21 goes down, R12 in AS65111 starts to send the same multicast group 224.1.1.1 through RP11. Which action resolves the issue ?

Options:

A.

Block service groups 224.0.1.39 and 224.0.1.40 between the two autonomous systems


B.

Disable PIM parse mode between RP11 and RP22 in the two autonomous systems.


C.

Advertise RP2 with a high local preference in AS65222.


D.

Enable passive intertaoe under EIGRP between the two autonomous systems.


Expert Solution
Questions # 60:

Question # 60

Refer to the exhibit The branch office in area 10 is connected to HQ via Frame Relay uplinks with bandwidth constraints After a recent implementation of QoS on the R2 and R3 networks the system has been logging %SYS-2-MALLOCFAIL: Memory allocation of 65536 bytes failed from 0x224E321, alignment 0 messages To reduce traffic load and memory utilization on R2 and R3 the network engineer configured R1 to announce only one user subnet per location by issuing the summary address 192.168.0.0 255.255.248.0 command en R1 However, the engineer noticed that router R2 still has two routes and a summary address from HQ and R3 also has two routes from HQ Which two actions must the engineer take on R1 to fix the issue so that only one route is announced’ (Choose two.)

Options:

A.

Configure the subnet range with the network command under the IS-IS process.


B.

Configure RI as a Level 1 device.


C.

Redistribute both routes into the ISIS process.


D.

Configure a summary route for Level 1-Level 2 devices.


E.

Configure a summary route for Level 1 devices.


Expert Solution
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