Practice Free 300-410 Exam Online Questions
A customer is running an mGRE DMVPN tunnel over WAN infrastructure between hub and spoke sites. The existing configuration allows NHRP to add spoke routers automatically to the multicast NHRP mappings. The customer is migrated the network from IPv4 to the IPv6 addressing scheme for those spokes’ routers that support IPv6 and can run DMVPN tunnel over the IPv6 network.
Which configuration must be applied to support IPv4 and IPv6 DMVPN tunnel on spoke routers?
- A . Tunnel mode ipv6ip 6to4
- B . Tunnel mode ipv6ip isatap
- C . Tunnel mode ipv6ip auto-tunnel
- D . Tunnel mode ipv6ip 6rd
Refer to the exhibit.
What is the result of applying this configuration?
- A . The router can form BGP neighborships with any other device.
- B . The router cannot form BGP neighborships with any other device.
- C . The router cannot form BGP neighborships with any device that is matched by the access list named “BGP”.
- D . The router can form BGP neighborships with any device that is matched by the access list named “BGP”.
C
Explanation:
after bgp session are UP.I configured the CoPP to drop 10.3.3.3 bgp traffic (R3).
R3 bgp traffic that matched the ACL 100 is dropped and the state is in IDLE
——————————————–
access-list 100 permit tcp host 10.3.3.3 any eq bgp
access-list 100 permit tcp host 10.3.3.3 eq bgp any
!
class-map match-all class-bgp
match access-group 100
!
policy-map policy-bgp
class class-bgp
drop
!
control-plane
service-policy input policy-bgp
!
The 10.3.3.3 neighbor goes to IDLE
Refer to the exhibit.
ISP 1 and ISP 2 directly connect to the Internet. A customer is tracking both ISP links to achieve redundancy and cannot see the Cisco IOS IP SLA tracking output on the router console.
Which command is missing from the IP SLA configuration?
- A . Start-time 00:00
- B . Start-time 0
- C . Start-time immediately
- D . Start-time now
D
Explanation:
Reference: https://www.cisco.com/c/en/us/td/docs/ios-xml/ios/ipsla/configuration/15-mt/sla-15-mt-book/sla_icmp_echo.html
Refer to the exhibit.
A bank ATM site has difficulty connecting with the bank server. A network engineer troubleshoots the issue and finds that R4 has no active route to the bank ATM site.
Which action resolves the issue?
- A . Advertise 10.10.30.0/24 subnet in R1 EIGRP AS.
- B . EIGRP peering between R3 and R4 to be fixed.
- C . EIGRP peering between R1 and R2 to be fixed.
- D . Advertise 10.10.30.0/24 subnet in R3 EIGRP AS.
Refer to the exhibit.
An engineer is trying to add an encrypted user password that should not be visible in the router configuration.
Which two configuration commands resolve the issue? (Choose two)
- A . password encryption aes
- B . username Admin password Cisco@maedeh motamedi
- C . username Admin password 5 Cisco@maedeh motamedi
- D . username Admin secret Cisco@maedeh motamedi
- E . no service password-encryption
- F . service password-encryption
Refer to the exhibit.
When the FastEthemet0/1 goes down, the route to 172.29.0 0/16 via 192.168.253 2 is not installed in the RIB.
Which action resolves the issue?
- A . Configure reported distance greater than the feasible distance
- B . Configure feasible distance greater than the successor’s feasible distance.
- C . Configure reported distance greater than the successor’s feasible distance.
- D . Configure feasible distance greater than the reported distance
D
Explanation:
From the exhibit, we notice network 172.29.0.0/16 was learned via two routes:
+ From 192.168.254.2 with FD = 307200 and AD = 281600
+ From 192.168.253.2 with FD = 410200 and AD = 352300
The first route is installed into the RIB as the successor route because of lower FD.
When the first route fails, router will not use the second route as it does not satisfy the feasibility condition. The feasibility condition states that, the Advertised Distance (AD, also called the reported distance) of a route must be lower than the feasible distance of the current successor route.
Which label operations are performed by a label edge router?
- A . SWAP and POP
- B . SWAP and PUSH
- C . PUSH and PHP
- D . PUSH and POP
D
Explanation:
A label edge router (LER, also known as edge LSR) is a router that operates at the edge of an MPLS network and acts as the entry and exit points for the network. LERs push an MPLS label onto an incoming packet and pop it off an outgoing packet.
Reference: https://www.cisco.com/c/en/us/td/docs/switches/datacenter/sw/nx-os/mpls/configuration/guide/mpls_cg/mp_mpls_overview.pdf
Which control plane process allows the MPLS forwarding state to recover when a secondary RP takes over from a failed primary RP?
- A . MP-BGP uses control plane services for label prefix bindings in the MPLS forwarding table
- B . LSP uses NSF to recover from disruption *i control plane service
- C . FEC uses a control plane service to distribute information between primary and secondary processors
- D . LDP uses SSO to recover from disruption in control plane service
Which MPLS value is combined with the IP prefix to convert to a VPNv4 prefix?
- A . 16-byte Route Distinguisher
- B . 8-byte Route Target
- C . 16-byte Route Target
- D . 8-byte Route Distinguisher
Which two protocols can cause TCP starvation? (Choose two)
- A . TFTP
- B . SNMP
- C . SMTP
- D . HTTPS
- E . FTP