Cisco 350-501 Practice Test - Questions Answers, Page 31
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Refer to the exhibit.
Refer to the exhibit. A network engineer configures CPE-1 for QoS with these requirements:
IPv4 and IPv6 traffic originated by the CPE-1 WAN IP address must be marked with DSCP CS3.
IPv4 LAN traffic must be marked with DSCP CS1.
IPv6 LAN traffic must be marked with DSCP default.
Which configuration must the engineer implement on CPE-1?
class-map match-any SELF_TRAFFIC
match access-group name SELF_V4
match access-group name SELF_V6
class-map match-all V4_ TRAFFIC
match protocol ip
class-map match-all V6_TRAFFIC
match protocol ipv6
class-map match-all QG_4
match qos-group 4
class-map match-all QG_6
match qos-group 6
!
policy-map LAN-INPUT
class V4_TRAFFIC
set qos-group 4
class V6_TRAFFIC
set qos-group 6
!
policy-map WAN-OUTPUT
class SELF_TRAFFIC
set ip dscp cs3
class QG_4
set ip dscp cs1
class QG_6
set ip dscp default
class-map match-all SELF_TRAFFIC
match access-group name SELF_V4
match access-group name SELF_V6
class-map match-all V4_ TRAFFIC
match protocol ip
class-map match-all V6_TRAFFIC
match protocol ipv6
class-map match-all QG_4
match qos-group 4
class-map match-all QG_6
match qos-group 6
!
policy-map LAN-INPUT
class V4_TRAFFIC
set qos-group 4
class V6_TRAFFIC
set qos-group 6
!
policy-map WAN-OUTPUT
class SELF_TRAFFIC
set dscp cs3
class QG_4
set ip dscp cs1
class QG_6
set dscp default
class-map match-all SELF_TRAFFIC
match access-group name SELF_V4
match access-group name SELF_V6
class-map match-all V4_ TRAFFIC
match protocol ip
class-map match-all V6_TRAFFIC
match protocol ipv6
class-map match-all QG_4
match qos-group 4
class-map match-all QG_6
match qos-group 6
!
policy-map LAN-INPUT
class V4_TRAFFIC
set qos-group 4
class V6_TRAFFIC
set qos-group 6
!
policy-map WAN-OUTPUT
class SELF_TRAFFIC
set ip dscp cs3
class QG_4
set ip dscp cs1
class QG_6
set ip dscp default
class-map match-any SELF_TRAFFIC
match access-group name SELF_V4
match access-group name SELF_V6
class-map match-all V4_ TRAFFIC
match protocol ip
class-map match-all V6_TRAFFIC
match protocol ipv6
class-map match-all QG_4
match qos-group 4
class-map match-all QG_6
match qos-group 6
!
policy-map LAN-INPUT
class V4_TRAFFIC
set qos-group 4
class V6_TRAFFIC
set qos-group 6
!
policy-map WAN-OUTPUT
class SELF_TRAFFIC
set dscp cs3
class QG_4
set ip dscp cs1
class QG_6
set dscp default
Refer to the exhibit.
router(config-route-map)# match tag 777
router(config-route-map)# set ip next-hop 10.0.1.1
router(config-route-map)# set origin igp
router{config-route-map)# set community no-export
Refer to the exhibit. EIGRP is running across the core to exchange internal routes, and each router maintains iBGP adjacency with the other routers on the network. An operator has configured static routes on the edge routers R1 and R2 for
IP address 10.0.1.1, which is used as a black hole route as shown. Which configuration should the operator implement to the management router to create a route map that will redistribute tagged static routes into BGP and create a static route to blackhole traffic with tag 777 that is destined to the server at 192.168.10.100?
router(config)# router bgp 55100
router(config-router)# redistribute static route-map blackhole-trigger
router(config)# ip route 10.0.1.1 255.255.255.255 Null0 tag 777
router(config)# router bgp 55100
router(config-router)# redistribute static route-map blackhole-trigger
router(config)# ip route 192.168.10.100 255.255.255.255 Null0 tag 777
router(config)# router bgp 55100
router(config-router)# redistribute connected
router(config)# ip route 192.168.10.100 255.255.255.255 tag 777
router(config)# router bgp 55100
router(config-router)# redistribute connected route-map blackhole-trigger
router(config)# ip route 192.168.10.100 255.255.255.255 Null0 tag 777
Refer to the exhibit.
Refer to the exhibit. Routers P4 and P5 receive the 0.0.0.0/0 route from the ISP via eBGP peering. P4 is the primary Internet gateway router, and P5 is its backup. P5 is already advertising a default route into the OSPF domain. Which configuration must be applied to P4 so that it advertises a default route into OSPF and becomes the primary Internet gateway for the network?
configure terminal
router ospfv3 100
address-family ipv4 unicast
default-information originate metric 40 metric-type 2
end
configure terminal
router ospfv3 100
address-family ipv4 unicast
default-information originate metric 40 metric-type 1
end
configure terminal
router ospfv3 100
address-family ipv4 unicast
redistribute bgp 65500 metric 40 metric-type 1
end
configure terminal
router ospfv3 100
address-family ipv4 unicast
default-information originate always metric 40 metric-type 1
end
Refer to the exhibit.
Refer to the exhibit. The network engineer who manages ASN 65001 is troubleshooting suboptimal routing to the 198.18.15.0/24 prefix. According to the network requirements:
Routing to IP destinations in the 198.18.15.0/25 block must be preferred via the EDGE-1 PE.
Routing to IP destinations in the 198.18.15.128/25 block must be preferred via the EDGE-2 PE.
More specific prefixes of the 198.18.15.0/24 block must not be advertised beyond the boundaries of ASN 64611.
Routing to 198.18.15.0/24 must be redundant in case one of the uplinks on INT-R1 fails.
Which configuration must the network engineer implement on INT-R1 to correct the suboptimal routing and fix the issue?
configure terminal
route-policy ASN65001-SPECIFIC-OUT
if destination in (198.18.15.0/25) then
set community (no-export, peeras:65001)
done
endif
if destination in (198.18.15.0/24) then
prepend as-path 65001 3
done
endif
drop
end-policy
!
router bgp 65001
neighbor 100.65.0.1
address-family ipv4 unicast
route-policy ASN65001-SPECIFIC-OUT out
end
configure terminal
route-policy ASN65001-SPECIFIC-OUT
if destination in (198.18.15.0/25) then
set community (internal, peeras:65001)
done
endif
if destination in (198.18.15.0/24) then
done
endif
drop
end-policy
!
router bgp 65001
neighbor 100.65.0.1
address-family ipv4 unicast
route-policy ASN65001-SPECIFIC-OUT out
end
configure terminal
route-policy ASN65001-SPECIFIC-OUT
if destination in (198.18.15.0/25) then
set community (no-advertise, peeras:65001)
done
endif
if destination in (198.18.15.128/25) then
prepend as-path 65001 3
done
endif
drop
end-policy
!
router bgp 65001
neighbor 100.65.0.1
address-family ipv4 unicast
route-policy ASN65001-SPECIFIC-OUT out
end
configure terminal
route-policy ASN65001-SPECIFIC-OUT
if destination in (198.18.15.0/25) then
set community (no-export, peeras:65001)
done
endif
if destination in (198.18.15.128/25) then
prepend as-path 65001 3
done
endif
drop
end-policy
!
router bgp 65001
neighbor 100.65.0.1
address-family ipv4 unicast
route-policy ASN65001-SPECIFIC-OUT in
end
A network architect plans to implement MPLS OAM to provide additional troubleshooting functionality for the NOC team. After analyzing the configuration on the MPLS P/PE nodes, the architect decides to revise the CoPP policies. Which two actions ensure that the new solution is secure? (Choose two.)
Allow port 3505 in the outbound direction only.
Allow the ICMP protocol only.
Allow the TCP and UDP protocols.
Allow the UDP protocol only.
Allow port 3503 in the inbound direction only.
What is a feature of model-driven telemetry?
It occasionally streams to multiple servers in the network.
It is less secure because it uses community strings.
It uses the pull model to send requested data to a client when polled.
It uses the push model to stream data to desired destinations.
Refer to the exhibit.
Refer to the exhibit. The link between Office A and Office B is running at 90% load, and occasionally the CPU on router R1 is overloaded. The company implemented QoS for business-critical applications at both offices as a temporary solution. A network engineer must update the R1 configuration to 600 ms to reduce CPU load and limit downtime after connection failure to avoid data loss. Which action meets this requirement?
Configure the fast-hello feature for OSPF with the command ip ospf dead-interval minimal hellomultiplier 3.
Configure BFD demand mode with the command bfd-demand timer 150 interval 250 retransmit 5.
Configure BFD non-echo mode with the command echo interval 250 minimal 300 echo-multiplier 2.
Configure BFD echo mode with the command bfd interval 150 min_rx 200 multiplier 3.
Refer to the exhibit.
Refer to the exhibit. A network engineer is configuring a new router for iBGP to improve the capacity of a growing network. The router must establish an iBGP peer relationship with its neighbor. The underlay network is already configured with the correct IP addresses. Which step should the engineer apply to complete this task?
Implement multicast routing on the router to support BGP hellos.
Configure the AS number for the router to share with its iBGP peers.
Configure the new router as an iBGP route reflector to support multiple iBGP peers.
Activate the BGP peers under the correct address family on the router.
Refer to the exhibit.
Refer to the exhibit. The application server in the data center hosts voice, video, and data applications over the internet. The data applications run more slowly than the voice and video applications. To ensure that all applications run smoothly, the service provider decided to implement a QoS policy on router PER 2 to apply traffic shaping. Which two actions must an engineer take to implement the task? (Choose two.)
Configure the scheduling function to handle delayed packets.
Enable packet remarking for priority traffic.
Configure a queue to buffer excess traffic.
Set the token value for secondary traffic.
Set a threshold to discard excess traffic.
FRR is configured on a network. What occurs when the headend router on the path is alerted to a link failure over IGP?
LSP attempts fast switching on the backup path until the primary path returns to the active state.
The headend router uses a presignaled LSP to bypass the failure point.
A new backup tunnel is established past the PLR to pass through the protected nodes
Backup tunnel is established and intersects with the primary tunnel at the headend.
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