Deck 20: Implementing OSPF

Question 1

Refer to the figure. Assuming what is shown is the extent of the OSPF configuration on a device, what is the RID of the local OSPF process?

A) 10.10.10.1
B) 172.16.1.2
C) 172.16.1.1
D) 172.16.0.1

Answer 1

172.16.1.2

Question 2

Which OSPF network statement will correctly include all the interfaces on a device that begin with an IP address of 172.16.0.0/16?

A) network 0.0.16.172 255.255.0.0 area 0
B) network 172.16.0.0 0.0.255.255 area 0
C) network 172.16.0.0 255.255.0.0 area 0
D) network 0.0.16.172 0.0.255.255 area 0

Answer 2

network 172.16.0.0 0.0.255.255 area 0

Question 3

Which single OSPF network statement will correctly include all the interfaces on a device whose IP addresses only begin with a 10.10.8, 10.10.9, 10.10.10, or 10.10.11?

A) network 10.10.8.0 0.0.7.255 area 0
B) network 10.10.0.0 0.0.0.255 area 0
C) network 10.10.8.0 0.0.3.255 area 0
D) network 10.10.0.0 0.0.7.255 area 0

Answer 3

network 10.10.8.0 0.0.3.255 area 0

Question 4

Which Cisco IOS commands can be used to display the interfaces that have been enabled into the local OSPF process?

A) show ip ospf interface brief
B) show ip ospf
C) show ip ospf enabled
D) show ip ospf interface

Question 5

When viewing the Cisco IOS routing table with the show ip route command, what code is used to denote OSPF routes that are not within the local area?

A) E2
B) IA
C) E1
D) E

Question 6

What default reference bandwidth does OSPF use when calculating the metric?

A) 10 Mbps
B) 1 Gbps
C) 100 Mbps
D) 100 Gbps

Question 7

Which Cisco IOS command is used to configure the OSPF reference bandwidth setting?

A) ospf reference-bandwidth speed
B) reference-bandwidth speed
C) ip ospf reference bandwidth speed
D) auto-cost reference-bandwidth speed

Question 8

Which Cisco IOS command is used to prevent a configured OSPF interface from forming a neighborship with any potential neighbors?

A) passive-interface interface
B) ip ospf process-id passive
C) ip ospf process-id no-advertise
D) advertise interface disable

Question 9

Which Cisco IOS command lists a group of messages for each IPv4 routing protocol running on a router?

A) show ip routing
B) show ip protocols
C) show ip configuration
D) show ip route configuration

Question 10

Which Cisco IOS command is used to alter the default behavior and configure all interfaces as passive?

A) passive-interface default disable
B) passive-interface default
C) ip routing passive enable
D) ip routing passive-interface

Question 11

Which Cisco IOS command can be used to display whether an interface is configured as passive?

A) show ip ospf interface passive
B) show ip ospf interface brief
C) show ip ospf interface
D) show ip ospf passive

Question 12

Which Cisco IOS command is used to advertise a default route into OSPF regardless of whether a default static route is configured?

A) ospf default-route advertise always
B) ospf advertise default-route permanent
C) default-information originate
D) default-information originate always

Question 13

By default, what is the maximum number of equal-cost OSPF routes that will be inserted into the routing table?

A) 4
B) 6
C) 1
D) 2

Question 14

Which Cisco IOS command is used to alter the maximum number of equal-cost OSPF routes that are inserted into the routing table?

A) ospf-paths max
B) maximum-paths max
C) ospf maximum-paths max
D) ospf load-balance max

Question 15

Which Cisco IOS command is used to enable OSPF on an interface using interface configuration mode commands?

A) ip ospf area
B) ospf process-id area area
C) ip ospf process-id area area
D) ospf area area

Question 16

An engineer used the Cisco IOS show ip ospf neighbor command and received the following output:

$\begin{array}{lclccl} \text {Neighbor ID }&\text { Pri} &\text { State} &\text { Dead Time }&\text { Address} &\text { Interface} \\3.3.3.3 & 1 &\text { FULL/DR }& 00: 00: 37 & 10.1 .13 .3 &\text { GigabitEthernet0/1/0 }\\4.4.4.4 & 1 & \text {FULL/BDR} & 00: 00: 34 & 10.1 .14 .4 & \text {GigabitEthernet0/2/0}\end{array}$

What does the state field tell us about the router with the Neighbor ID 4.4.4.4?

A) The neighbor state is full, and the neighbor is neither the designated router or backup designated router.
B) The neighbor state is full, and the neighbor is the backup designated router.
C) The neighbor state is full, and the neighbor is the designated router.
D) The neighbor state is 2-way, and the neighbor is neither the designated router or the backup designated router.

Question 17

An engineer would like to remove the network commands in OSFP configuration mode. What Cisco IOS command does this engineer need to use?

A) no network network-id area area-id
B) remove network network-id area area-id
C) disable network network-id area area-id
D) stop network network-id area area-id

Question 18

An engineer would like to set the cost of an OSPF interface directly on her router. Which interface subcommand allows the engineer to set the cost directly?

A) cost ospf x
B) cost x ip ospf
C) modify cost ospf x
D) ip ospf cost x

Question 19

An engineer needs to ensure that a specific OSPF interface is not set to passive. Which Cisco IOS command could this engineer use to change the configuration for the interface?

A) disable passive interface
B) no passive-interface type number
C) passive-interface no type number
D) config interface passive disable