OSPF Routing Protocol Flashcards
The senior network engineer typed the following commands on the R1.
R1# conf t Enter configuration commands, one per line. End with CNTL/Z.
R1(config)# interface g0/0/0
R1(config-if)# ip ospf cost 6
R1(config-if)# interface g0/1/0
R1(config-if)# ip ospf cost 7
R1(config-if)# ^Z
What command will you type in order to confirm the OSPF interface costs?
(A) show ip ospf
(B) show ip ospf interface brief
(C) show ospf brief
(D) show ospf interface brief
The senior network engineer typed the following commands on the R1.
R1# conf t Enter configuration commands, one per line. End with CNTL/Z.
R1(config)# interface g0/0/0
R1(config-if)# ip ospf cost 6
R1(config-if)# interface g0/1/0
R1(config-if)# ip ospf cost 7
R1(config-if)# ^Z
What command will you type in order to confirm the OSPF interface costs?
(A) show ip ospf
(B) show ip ospf interface brief
(C) show ospf brief
(D) show ospf interface brief
Per the command output, with how many
routers is router R4 full adjacent over its Gi0/1 interface?
R4# show ip ospf interface brief
(A) 1
(B) 5
(C) 2
(D) 0
Per the command output, with how many
routers is router R4 full adjacent over its Gi0/1 interface?
R4# show ip ospf interface brief
(A) 1
(B) 5
(C) 2
(D) 0
You have been tasked to list the OSPF neighbors off interface serial 0/1. Which command will you type to complete the task?
(A) show ip ospf neighbor serial 0/1
(B) show ip ospf neighbor serial 1/0
(C) show ip ospf neighbor fastethernet 0/1
(D) show ip ospf serial 0/1
You have been tasked to list the OSPF neighbors off interface serial 0/1. Which command will you type to complete the task?
(A) show ip ospf neighbor serial 0/1
(B) show ip ospf neighbor serial 1/0
(C) show ip ospf neighbor fastethernet 0/1
(D) show ip ospf serial 0/1
The routing protocol that was designed and intended for use between different autonomous systems is called ____________________________.
(A) interior gateway protocol
(B) different gateway protocol
(C) autonomous gateway protocol
(D) exterior gateway protocol
The routing protocol that was designed and intended for use between different autonomous systems is called ____________________________.
(A) interior gateway protocol
(B) different gateway protocol
(C) autonomous gateway protocol
(D) exterior gateway protocol
Given the following OSPF network commands, type the wildcard masks to match the requirement.
Requirement:
Match addresses that begin with 110.20
Command: network 110.20.0.0 {wildcard mask}
Which of the following wildcard mask will you use to meet the requirement?
(A) 0.0.255.255
(B) 0.0.0.255
(C) 0.255.255.255
(D) 0.0.0.0
Given the following OSPF network commands, type the wildcard masks to match the requirement.
Requirement:
Match addresses that begin with 110.20
Command: network 110.20.0.0 {wildcard mask}
Which of the following wildcard mask will you use to meet the requirement?
(A) 0.0.255.255
(B) 0.0.0.255
(C) 0.255.255.255
(D) 0.0.0.0
Which of the following commands produces the output below?
Codes: L – local, C – connected, S – static, R – RIP, M – mobile, B – BGP D – EIGRP, EX – EIGRP external, O – OSPF, IA – OSPF inter area N1 – OSPF NSSA external type 1, N2 – OSPF NSSA external type 2 E1 – OSPF external type 1, E2 – OSPF external type 2
! Additional lines omitted for brevity
Gateway of last resort is not set
10.0.0.0/8 is variably subnetted, 9 subnets, 2 masks 10.1.1.0/24 [110/2] via 10.1.14.1, 00:19:24, GigabitEthernet0/0/0
10.1.2.0/24 [110/2] via 10.1.14.1, 00:19:24, GigabitEthernet0/0/0
C 10.1.4.0/24 is directly connected, Vlan3
L 10.1.4.4/32 is directly connected, Vlan3
10.1.12.0/24 [110/2] via 10.1.14.1, 00:17:24, GigabitEthernet0/0/0
10.1.13.0/24 [110/2] via 10.1.14.1, 00:14:15, GigabitEthernet0/0/0
C 10.1.14.0/24 is directly connected, GigabitEthernet0/0/0
L 10.1.14.4/32 is directly connected, GigabitEthernet0/0/0 10.1.23.0/24 [110/3] via 10.1.14.1, 00:15:35, GigabitEthernet0/0/0
(A) show ip codes
(B) show ip route
(C) show ip interfaces
(D) show ip connected
Which of the following commands produces the output below?
Codes: L – local, C – connected, S – static, R – RIP, M – mobile, B – BGP D – EIGRP, EX – EIGRP external, O – OSPF, IA – OSPF inter area N1 – OSPF NSSA external type 1, N2 – OSPF NSSA external type 2 E1 – OSPF external type 1, E2 – OSPF external type 2
! Additional lines omitted for brevity
Gateway of last resort is not set
10.0.0.0/8 is variably subnetted, 9 subnets, 2 masks 10.1.1.0/24 [110/2] via 10.1.14.1, 00:19:24, GigabitEthernet0/0/0
10.1.2.0/24 [110/2] via 10.1.14.1, 00:19:24, GigabitEthernet0/0/0
C 10.1.4.0/24 is directly connected, Vlan3
L 10.1.4.4/32 is directly connected, Vlan3
10.1.12.0/24 [110/2] via 10.1.14.1, 00:17:24, GigabitEthernet0/0/0
10.1.13.0/24 [110/2] via 10.1.14.1, 00:14:15, GigabitEthernet0/0/0
C 10.1.14.0/24 is directly connected, GigabitEthernet0/0/0
L 10.1.14.4/32 is directly connected, GigabitEthernet0/0/0 10.1.23.0/24 [110/3] via 10.1.14.1, 00:15:35, GigabitEthernet0/0/0
(A) show ip codes
(B) show ip route
(C) show ip interfaces
(D) show ip connected
Routing protocol is a set of rules, and algorithms used by routers for the overall purpose of learning routes. This process includes the exchange and analysis of routing information.
(A) TRUE
(B) FALSE
Routing protocol is a set of rules, and algorithms used by routers for the overall purpose of learning routes. This process includes the exchange and analysis of routing information.
(A) TRUE
(B) FALSE
Routed protocol is a protocol that defines a packet structure and logical addressing, allowing routers to
forward or route the packets.
(A) TRUE
(B) FALSE
Routed protocol is a protocol that defines a packet structure and logical addressing, allowing routers to
forward or route the packets.
(A) TRUE
(B) FALSE
Which of the following network commands following the command router ospf 1, tells the router to start using OSPF on interfaces whose IP addresses are 20.1.20.1, 20.1.30.1, and 20.1.40.1?
(A) network 20.0.0.1 0.0.255.255 area 0
(B) network 20.0.0.1 0.0.0.255 area 0
(C) network 20.0.0.0 255.0.0.0 area 0
(D) network 20.0.0.0 0.255.255.255 area 0
Which of the following network commands following the command router ospf 1, tells the router to start using OSPF on interfaces whose IP addresses are 20.1.20.1, 20.1.30.1, and 20.1.40.1?
(A) network 20.0.0.1 0.0.255.255 area 0
(B) network 20.0.0.1 0.0.0.255 area 0
(C) network 20.0.0.0 255.0.0.0 area 0
(D) network 20.0.0.0 0.255.255.255 area 0
The network designer provides the following network diagram for OSPF Single-Area to start the configuration
Based on the diagram, configure the R2 following the details below.
1. Enable OSPF process 2
2. Enable OSPF on all interfaces with a single command
(A) R2# router ospf 3
R2# network 0.0.0.0 255.255.255.255 area 0
R2# interface GigabitEthernet0/0
R2(config-if)# ip address 158.159.170.2 255.255.255.0
R2# interface GigabitEthernet0/1/0
R2(config-if)# ip address 158.159.160.2 255.255.255.0
(B) R2# router ospf 2
R2# network 0.0.0.0 255.255.255.255 area 0
R2# interface GigabitEthernet0/0
R2(config-if)# ip address 158.159.170.2 255.255.255.0
R2# interface GigabitEthernet0/1/0
R2(config-if)# ip address 158.159.160.2 255.255.255.0
(C) R2# router ospf 2
R2# network 0.0.0.0 255.255.255.255 area 0
R2# interface GigabitEthernet0/0
R2(config-if)# ip address 158.159.170.2 255.255.0.0
R2# interface GigabitEthernet0/1/0
R2(config-if)# ip address 158.159.160.2 255.255.0.0
R2# router ospf 2
R2# network 0.0.0.0 255.255.255.255 area 1
R2# interface GigabitEthernet0/0
R2(config-if)# ip address 158.159.170.2 255.255.255.0
R2# interface GigabitEthernet0/1/0
R2(config-if)# ip address 158.159.160.2 255.255.255.0
The network designer provides the following network diagram for OSPF Single-Area to start the configuration
Based on the diagram, configure the R2 following the details below.
1. Enable OSPF process 2
2. Enable OSPF on all interfaces with a single command
(A) R2# router ospf 3
R2# network 0.0.0.0 255.255.255.255 area 0
R2# interface GigabitEthernet0/0
R2(config-if)# ip address 158.159.170.2 255.255.255.0
R2# interface GigabitEthernet0/1/0
R2(config-if)# ip address 158.159.160.2 255.255.255.0
(B) R2# router ospf 2
R2# network 0.0.0.0 255.255.255.255 area 0
R2# interface GigabitEthernet0/0
R2(config-if)# ip address 158.159.170.2 255.255.255.0
R2# interface GigabitEthernet0/1/0
R2(config-if)# ip address 158.159.160.2 255.255.255.0
(C) R2# router ospf 2
R2# network 0.0.0.0 255.255.255.255 area 0
R2# interface GigabitEthernet0/0
R2(config-if)# ip address 158.159.170.2 255.255.0.0
R2# interface GigabitEthernet0/1/0
R2(config-if)# ip address 158.159.160.2 255.255.0.0
(D) R2# router ospf 2
R2# network 0.0.0.0 255.255.255.255 area 1
R2# interface GigabitEthernet0/0
R2(config-if)# ip address 158.159.170.2 255.255.255.0
R2# interface GigabitEthernet0/1/0
R2(config-if)# ip address 158.159.160.2 255.255.255.0
Given the following OSPF network diagram, what router will be added to R1’s routing table as a next-hop?
(A) R2
(B) R4
(C) R7
(D) R5
Given the following OSPF network diagram, what router will be added to R1’s routing table as a next-hop?
(A) R2
(B) R4
(C) R7
(D) R5
You have been task to list the interfaces on which the OSPF protocol is enabled. Which of the following command will you type?
(A) show ip ospf brief
(B) show ip ospf interface brief
(C) show ip interface brief
(D) show ospf interface brief
You have been task to list the interfaces on which the OSPF protocol is enabled. Which of the following command will you type?
(A) show ip ospf brief
(B) show ip ospf interface brief
(C) show ip interface brief
(D) show ospf interface brief
A network engineer connects routers R5 and R6 to the same Ethernet LAN and configures them to use OSPFv2. Which answers describe a combination of settings that would prevent the two routers from becoming OSPF neighbors?
(A) Both routers’ interface IP addresses are in the same subnet
(B) Both routers’ OSPF process uses process ID 3
(C) Both routers’ OSPF process uses router ID 42.42.42.42
(D) Both routers’ interfaces use an OSPF Dead interval of 80
A network engineer connects routers R5 and R6 to the same Ethernet LAN and configures them to use OSPFv2. Which answers describe a combination of settings that would prevent the two routers from becoming OSPF neighbors?
(A) Both routers’ interface IP addresses are in the same subnet
(B) Both routers’ OSPF process uses process ID 3
**(C) Both routers’ OSPF process uses router ID 42.42.42.42 **
(D) Both routers’ interfaces use an OSPF Dead interval of 80
Which of the following terms described as an OSPF router with interfaces connected to the backbone area and to at least one other area?
(A) Backbone area
(B) Internal router
(C) Backbone router
(D) Area Border Router
Which of the following terms described as an OSPF router with interfaces connected to the backbone area and to at least one other area?
(A) Backbone area
(B) Internal router
(C) Backbone router
(D) Area Border Router
Which of the following route types has 110 as default Administrative Distance (AD)?
(A) IGRP
(B) OSPF
(C) RIP
(D) IS-IS
Which of the following route types has 110 as default Administrative Distance (AD)?
(A) IGRP
(B) OSPF
(C) RIP
(D) IS-IS
