
Banco de preguntas CCNP ENARSI 300-401 actualizado 25 de mayo 2026
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Preguntas
Las preguntas prácticas (simulaciones), pueden verlas en este curso: Laboratorios del examen CCNP ENARSI 300-410.
1. Refer to the exhibit. An engineer must troubleshoot a connectivity issue impacting the redistribution of the subnet 172.16.2.48/28 into the OSPF domain. Which configuration on router R1 advertises this subnet into the OSPF domain?
R1#show run | begin router eigrp 100
router eigrp 100
network 172.16.250.0 0.0.0.3
redistribute ospf 10 metric 1 1 1 1 1
!
router ospf 10
network 192.168.1.0 0.0.0.3 area 0
!
ip forward-protocol nd
!
!
no ip http server
R3# traceroute 172.16.2.48
type escape sequence to abort
Tracing the route to 172.16.2.48
VRF info: (vrf in name/id, vrf out name/id)
1 * * *
2 * * *
3 * * *
R3#show ip route
192.168.1.0/24 is variably subnetted, 2 subnets, 2 masks
C 192.168.1.0/30 is directly connected, GigabitEthernet0/1
L 192.168.1.2/32 is directly connected, GigabitEthernet0/1
192.168.2.0/24 is variably subnetted, 2 subnets, 2 masks
C 192.168.2.0/24 is directly conectede, Loopback2
L 192.168.2.33/32 is directly connected, Loopback2
192.168.3.0/24 is variably subnetted, 2 subnets, 2 masks
C 192.168.3.0/24 is directly connected, Loopback1
L 192.168.3.17/32 is directly connected, Loopback1
R4#show running-config | begin router eigrp
router eigrp 100
network 172.16.2.0 0.0.0.3
network 172.16.2.16 0.0.0.15
network 172.16.2.32 0.0.0.15
redistribute static metric 100 1 1 1 1 route-map CCNP
!
ip forward-protocol nd
!
no ip http server
no ip http sercure-server
ip route 172.16.2.48 255.255.255.240 172.16.2.34
!
route-map CCNP permit 10
match ip address 10
set tag 200
!
!
access-list 10 permit 172.16.2.48 0.0.0.15
A. R1(config)#route-map CCNP permit 10 R1(config-route-map)#match tag 200 R1(conflg-route-map)#exit R1(config)#router ospf 10 R1(config-router)#redistribute eigrp 100 subnets route-map CCNP
B.
R1(config)#route-map CCNP deny 10 R1(conflg-route-map)#match tag 200 R1(config)#route-map CCNP permit 10 R1(config)#router ospf 10 R1(conflg-router)#redistrlbute eigrp 100 subnets route-map CCNP
C.
R1(config)#route-map CCNP permit 10 R1(config-route-map)#match route-type internal R1(config)#router ospf 10 R1(config-router)#redistribute eigrp 100 subnets route-map CCNP
D.
R1(config)#route-map CCNP permit 10 R1(config-route-map)#match route-type level-2 R1(config)#router ospf 10 R1(config-router)#redistribute eigrp 100 subnets route-map CCNP
2. Refer to the exhibit. The services at branch B are down. An engineer notices that router A and router B are not exchanging any routes. Which configuration resolves the issue on router B?
RouterA#debug eigrp packets (UPDATE, REQUEST, QUERY, REPLY, HELLO, UNKNOWN, PROBE, ACK, STUB, SIAQUERY, SIAREPLY) EIGRP Packet debugging is on RouterA# *Jan 14 16:39:24.927: EIGRP: Gil: ignored packet from 192.168.168.2, opcode 5 (missing authentication) *Jan 14 16:39:25.619: EIGRP: Sending HELLO on Gil paklen 60 *Jan 14 16:39:25.619: AS 100, Flags 0x0: (NULL), Seq 0/0 interfaceQ 0/0 iidbo un/rely 0/0 RouterA#
A.
router eigrp 100 network 192.168.168.0 key chain EIGRP key 1 key-string CCNP interface serial 0/0/0 ip address 192.168.168.2 255.255.255.0 ip authentication key-chain eigrp 100 EIGRP negotiation auto
B.
router eigrp 100 network 192.168.168.0 key chain CCNP key 1 key-string EIGRP interface serial0/0/0 ip address 192.168.168.2 255.255.255.0 ip authentication mode eigrp 100 md5 ip authentication key-chain eigrp 100 EIGRP negotiation auto
C.
router eigrp 100 network 192.168.168.0 key chain EIGRP key 1 key-string CCNP interface serial0/0/0 ip address 192.168.168.2 255.255.255.0 ip authentication mode eigrp 100 md5 negotiation auto
D.
router eigrp 100 network 192.168.168.0 key chain EIGRP key 1 key-string CCNP interface serial0/0/0 ip address 192.168.168.2 255.255.255.0 ip authentication mode eigrp 100 md5 ip authentication key-chain eigrp 100 EIGRP negotiation auto
3. Refer to the exhibit. An engineer must troubleshoot an issue affecting the communication from router R2 to the TACACS server. Which configuration resolves the issue?
*Mar 10 20:13:58.156: AAA/BIND(00000055): Bind i/f *Mar 10 20:13:58.156: AAA/AUTHEN/LOGIN (00000055): Pick method list 'default' *Mar 10 20:13:58.156: TAC+: Queuing AAA Authentication request 85 for processing *Mar 10 20:13:58.156: TAC+:(00000055) login timer started 1020 sec timeout *Mar 10 20:13:58.156: TAC+: processing authentication start request id 85 *Mar 10 20:13:58.156: TAC+: Authentication start packet created for 85() *Mar 10 20:13:58.156: TAC+: Using server 10.106.60.182 *Mar 10 20:13:58.156: TAC+: (00000055)/0/NB_WAIT/225FE2DC: Started 5 sec timeout *Mar 10 20:13:58.156: TAC+:(00000055)/0/NB_WAIT: socket event 2 *Mar 10 20:13:58.156: TAC+:(00000055)/0/NB_WAIT: wrote entire 38 bytes request *Mar 10 20:13:58.156: TAC+:(00000055)/0/READ: socket event 1 *Mar 10 20:13:58.156: TAC+:(00000055)/0/READ: Would block while reading *Mar 10 20:13:58.156: TAC+:(00000055)/0/READ: socket event 1 *Mar 10 20:13:58.156: TAC+:(00000055)/0/READ: read entire 12 header bytes (expect 6 bytes data) *Mar 10 20:13:58.156: TAC+:(00000055)/0/READ: socket event 1 *Mar 10 20:13:58.156: TAC+:(00000055)/0/READ: read entire 18 bytes response *Mar 10 20:13:58.156: TAC+:(00000055)/0/225FE2 DC: Processing the reply packet *Mar 10 20:13:58.156: TAC+:: received bad AUTHEN packet: length = 6, expected 43974 *Mar 10 20:13:58.156: TAC+:: Invalid AUTHEN packet (check keys).
A.
R1 (config)#tacacs-server packet maxsize 43974
B.
R2(config)#tacacs server advrt R2 (config-server-tacacs)#key xyz123
C.
R2(config)#tacacs-server packet maxsize 43974
D.
R1 (config)#tacacs server advrt R1 (config-server-tacacs)#kty xyz123
4. Users report web connectivity problems on the server (10.1.1.10). Which IP SLA configuration captures the failure details through the network to resolve the issue?
A.
ip sla 5 icmp-echo 10.1.1.10 frequency 1 timeout 3 ip sla schedule 5 life forever start-time now
B.
ip sla 5 http get url http://10.1.1.10 frequency 60 timeout 3000 ! ip sla schedule 5 life forever start-time now
C.
ip sla 5 icmp-echo 10.1.1.10 frequency 60 timeout 3000 ip sla schedule 5 life forever start-time now
D.
ip sla 5 http get url http://10.1.1.10 frequency 1 timeout 3 ! ip sla schedule 5 life forever start-time now
5. Refer to the exhibit. The engineer configured route redistribution in the network but soon received reports that R2 cannot access 192.168.7.0/24 and 192.168.15.0/24 subnets. Which configuration resolves the issue?
R1#show route-map route-map FROM->EIGRP, permit, sequence 10 Match clauses: ip address (access-lists): 10 Set clauses: Policy routing matches: 0 packets, 0 bytes R1#show run | sec router router eigrp 100 network 10.96.69.0 0.0.0.3 no auto-summary eigrp router-id 1.1.1.1 router ospf 100 router-id 1.1.1.1 log-adjacency-changes redistribute eigrp 100 subnets route-map FROM->EIGRP network 10.99.69.0 0.0.0.3 area 0 R1#show ip access-list Standard IP access list 10 10 permit 192.168.16.0, wildcard bits 0.0.3.255 11 permit 192.168.0.0, wildcard bits 0.0.7.255 20 deny any
A.
R1 (config)#ip access-list standard 10 R1 (config-std-nacl) #no 10 permit R1 (config-std-nacl) #no 11 permit R1 (config-std-nacl) #10 permit 192.168.0.0 0.0.3.255 R1 (config-std-nacl) #11 permit 192.168.8.0 0.0.3.255
B.
R1 (config) #ip access-list standard 10 R1 (config-std-nacl) #no 10 permit R1 (config-std-nacl) #no 11 permit R1 (config-std-nacl) #10 permit 192.168.4.0 0.0.3.255 R1 (config-std-nacl) #11 permit 192.168.12.0 0.0.3.255
C.
R1 (config)#ip access-list standard 10 R1 (config-std-nacl) #no 10 permit R1 (config-std-nacl) #no 11 permit R1 (config-std-nacl) #10 permit 192.168.0.0 0.0.3.255 R1 (config-std-nacl) #11 permit 192.168.8.0 0.0.7.255
D.
R1 (config)#ip access-list standard 10 R1 (config-std-nacl) #no 10 permit R1 (config-std-nacl) #no 11 permit R1 (config-std-nacl) #10 permit 192.168.0.0 0.0.7.255 R1 (config-std-nacl) #11 permit 192.168.8.0 0.0.3.255
6. Refer to the exhibit. EIGRP adjacency between router A and router C is not working as expected. Which two configurations resolve the issue? (Choose two.)
RouterA#sh ip eigrp interfaces gigabitEthernet 0/0/1 EIGRP-IPv4 Interfaces for AS (1)
Interface Peers Xmit Queue PeerQ Mean Pacing Time Multicast Pending
Un/Reliable Un/Reliable SRTT Un/Reliable Flow Timer Routes
EIGRP-IPv4 VR (CCNP) Address-Family Interfaces for AS (100)
Interface Peers Xmit Queue PeerQ Mean Pacing Time Multicast Pending
Un/Reliable Un/Reliable SRTT Un/Reliable Flow Timer Routes
Gi0/0/1 0 0/0 0/0 0 0/0 50 0
A.
Router C router eigrp CCNP address-family ipv4 unicast autonomous-system 100 af-interface GigabitEthernet0/0/0 hold-time 90 exit-af-interface topology base exit-af-topology exit-address-family
B.
Router A router eigrp CCNP address-family ipv4 unicast autonomous-system 10 af-interface GigabitEthernet0/0/1 hello-interval 15 hold-time 90 exit-af-interface topology base exit-af-topology network 198.18.133.0 exit-address-family
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