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WorksheetsIP Routing + OSPF
Total questions: 40
Worksheet time: 1hrs 20mins
Which statement about static and dynamic routes is true?
A. Dynamic routes are manually configured by a network administrator, while static routes are automatically learned and adjusted by a routing protocol
B. Static routes are manually configured by a network administrator, while dynamic routes are automatically learned and adjusted by a routing protocol
C. Static routes tell the router how to forward packets to networks that are not directly connected, while dynamic routes tell the router how to forward packets to networks that are directly connected
D. Dynamic routes tell the router how to forward packets to networks that are not directly connected, while static routes tell the router how to forward packets to networks that are directly connected
Refer to the exhibit. When PC 1 sends a packet to PC2, the packet has which source and destination IP address when it arrives at interface Gi0/0 on router R2?
A. source 192.168.10.10 and destination 10.10.2.2
B. source 192.168.20.10 and destination 192.168.20.1
C. source 192.168.10.10 and destination 192.168.20.10
D. source 10.10.1.1 and destination 10.10.2.2
Which of the following dynamic routing protocols are Distance Vector routing protocols? (Choose two)
A. IS-IS
B. EIGRP
C. OSPF
D. BGP
E. RIP
Refer to the exhibit. With which metric was the route to host 172.16.0.202 learned?
A. 0
B. 110
C. 38443
D. 3184439
Refer to the exhibit. Which command would you use to configure a static route on Router 1 to network 192.168.202.0/24 with a nondefault administrative distance?
A. router1(config)#ip route 192.168.202.0 255.255.255.0 192.168.201.2 1
B. router1(config)#ip route 192.168.202.0 255.255.255.0 192.168.201.2 5
C. router1(config)#ip route 1 192.168.201.1 255.255.255.0 192.168.201.2
D. router1(config)#ip route 5 192.168.202.0 255.255.255.0 192.168.201.2
Refer to the exhibit. Which type of route does R1 use to reach host 10.10.13.10/32?
A. floating static route
B. host route
C. default route
D. network route
Refer to the exhibit. If configuring a static default route on the router with the ip route 0.0.0.0 0.0.0.0 10.13.0.1 120 command, how does the router respond?
Gateway of last resort is 10.12.0.1 to network 0.0.0.0
O*E2 0.0.0.0/0 [110/1] via 10.12.0.1, 00:00:01, GigabitEthernet0/0
10.0.0.0/8 is variably subnetted, 2 subnets, 2 masks
C 10.0.0.0/24 is directly connected, GigabitEthernet0/0
L 10.0.0.2/32 is directly connected, GigabitEthernet0/0
C 10.13.0.0/24 is directly connected, GigabitEthernet0/1
L 10.13.0.2/32 is directly connected, GigabitEthernet0/1
A. It ignores the new static route until the existing OSPF default route is removed
B. It immediately replaces the existing OSPF route in the routing table with the newly configured static route
C. It starts load-balancing traffic between the two default routes
D. It starts sending traffic without a specific matching entry in the routing table to GigabitEthernet0/1
When a floating static route is configured, which action ensures that the backup route is used when the primary route falls?
A. The floating static route must have a higher administrative distance than the primary route so it is used as a backup
B. The administrative distance must be higher on the primary route so that the backup route becomes secondary
C. The floating static route must have a lower administrative distance than the primary route so it is used as a backup
D. The default-information originate command must be configured for the route to be installed into the routing table
Which attribute does a router use to select the best path when two or more different routes to the same destination exist from two different routing protocols?
A. dual algorithm
B. metric
C. administrative distance
D. hop count
Refer to the exhibit. Which route does R1 select for traffic that is destined to 192.168.16.2?
R1#show ip route
D 192.168.16.0/26 [90/2679326] via 192.168.1.1
R 192.168.16.0/24 [120/3] via 192.168.1.2
O 192.168.16.0/21 [110/2] via 192.168.1.3
i L1 192.168.16.0/27 [115/30] via 192.168.1.4
A. 192.168.16.0/21
B. 192.168.16.0/24
C. 192.168 26.0/26
D. 192.168.16.0/27
Refer to the exhibit. Which prefix does Router 1 use for traffic to Host A?
Router1#show ip route
Gateway of last resort is 10.10.11.2 to network 0.0.0.0 209.165.200.0/27 is sudnetted, 1 subnets
B 209.165.200.224 [20/0] via 10.10.12.2, 03:03:03
209.165.201.0/27 is sudnetted, 1 subnets
B 209.165.201.0 [20/0] via 10.10.12.2, 03:03:03
209.165.202.0/27 is subnetted, 1 subnets
B 209.165.202.128 [20/0] via 10.10.12.2, 03:03:03
10.0.0.0/8 is variably subnetted, 8 subnets, 4 masks
C 10.10.10.0/28 is directly connected, GigabitEthernet0/0
C 10.10.11.0/30 is directly connected, FastEthernet2/0
C 10.10.12.0/30 is directly connected, GigabitEthernet0/1
O 10.10.13.0/25 [110/2] via 10.10.10.1, 00:00:03, GigabitEthernet0/0
O 10.10.13.128/28 [110/2] via 10.10.10.1, 00:00:03, GigabitEthernet0/0
O 10.10.13.144/28 [110/2] via 10.10.10.1, 00:00:03, GigabitEthernet0/0
O 10.10.13.160/29 [110/2] via 10.10.10.1, 00:00:03, GigabitEthernet0/0
O 10.10.13.208/29 [110/2] via 10.10.10.1, 00:00:03, GigabitEthernet0/0
S* 0.0.0.0/0 [1/0] via 10.10.11.2
A. 10.10.10.0/28
B. 10.10.13.0/25
C. 10.10.13.144/28
D. 10.10.13.208/29
Router A learns the same route from two different neighbors, one of the neighbor routers is an OSPF neighbor and the other is an EIGRP neighbor. What is the administrative distance of the route that will be installed in the routing table?
A. 20
B. 90
C. 110
D. 115
Refer to the exhibit. How does router R1 handle traffic to 192.168.10.16?
R1# show ip route
D 192.168.10.0/24 [90/2679326] via 192.168.1.1
R 192.168.10.0/27 [120/3] via 192.168.1.2
O 192.168.10.0/28 [110/2] via 192.168.1.3
i L1 192.168.10.0/13 [115/30] via 192.168.1.4
A. It selects the IS-IS route because it has the shortest prefix inclusive of the destination address
B. It selects the RIP route because it has the longest prefix: inclusive of the destination address
C. It selects the OSPF route because it has the lowest cost
D. It selects the EIGRP route because it has the lowest administrative distance
Refer to the exhibit. Which path is used by the router for Internet traffic?
R1#show ip route
Gateway of last resort is 10.10.11.2 to network 0.0.0.0
209.165.200.0/27 is subnetted, 1 subnets
B 209.165.200.224 [20/0] via 10.10.12.2, 00:10:34
10.0.0.0/8 is variably subnetted, 4 subnets, 3 masks
C 10.10.10.0/28 is directly connected, GigabitEthernet0/0
C 10.10.11.0/30 is directly connected, FastEthernet2/0
C 10.10.13.0/30 [110/2] via 10.10.10.1, 00:03:34, GigabitEthernet0/0
C 10.10.12.0/30 is directly connected, GigabitEthernet0/1
S* 0.0.0.0/0 [1/0] via 10.10.11.2
Switch1#show ip route
Gateway of last resort is not set
10.0.0.0/8 is variably subnetted, 2 subnets, 2 masks
C 10.10.10.0/28 is directly connected, FastEthernet0/1
C 10.10.13.0/24 is directly connected, VLAN20
A. 209.165.200.0/27
B. 10.10.10.0/28
C. 0.0.0.0/0
D. 10.10.13.0/24
Refer to the exhibit. A router reserved these five routes from different routing information sources. Which two routes does the router install in its routing table? (Choose two)
IBGP route 10.0.0.0/30
RIP route 10.0.0.0/30
OSPF route 10.0.0.0/16
OSPF route 10.0.0.0/30
EIGRP route 10.0.0.1/32
A. RIP route 10.0.0.0/30
B. iBGP route 10.0.0.0/30
C. OSPF route 10.0.0.0/30
D. EIGRP route 10.0.0.1/32
E. OSPF route 10.0.0.0/16
A packet is destined for 10.10.1.22. Which static route does the router choose to forward the packet?
A. ip route 10.10.1.0 255.255.255.240 10.10.255.1
B. ip route 10.10.1.16 255.255.255.252 10.10.255.1
C. ip route 10.10.1.20 255.255.255.252 10.10.255.1
D. ip route 10.10.1.20 255.255.255.254 10.10.255.1
Refer to the exhibit. Router R1 Fa0/0 cannot ping router R3 Fa0/1. Which action must be taken in router R1 to help resolve the configuration issue?
A. set the default network as 20.20.20.0/24
B. set the default gateway as 20.20.20.2
C. configure a static route with Fa0/1 as the egress interface to reach the 20.20.20.0/24 network
D. configure a static route with 10.10.10.2 as the next hop to reach the 20.20.20.0/24 network
Refer to the exhibit. Router R1 is running three different routing protocols. Which route characteristic is used by the router to forward the packet that it receives for destination IP 172.16.32.1?
A. longest prefix
B. metric
C. cost
D. administrative distance
Refer to the exhibit. How does router R1 handle traffic to 192.168.12.16?
EIGRP: 192.168.12.0/24
RIP: 192.168.12.0/27
OSPF: 192.168.12.0/26
A. It selects the IS-IS route because it has the shortest prefix inclusive of the destination address
B. It selects the EIGRP route because it has the lowest administrative distance
C. It selects the OSPF route because it has the lowest cost
D. It selects the RIP route because it has the longest prefix inclusive of the destination address
R1 has learned route 10.10.10.0/24 via numerous routing protocols. Which route is installed?
A. route with the lowest cost
B. route with the next hop that has the highest IP
C. route with the shortest prefix length
D. route with the lowest administrative distance
What are two reasons for an engineer to configure a floating static route? (Choose two)
A. to automatically route traffic on a secondary path when the primary path goes down
B. to route traffic differently based on the source IP of the packet
C. to enable fallback static routing when the dynamic routing protocol fails
D. to support load balancing via static routing
E. to control the return path of traffic that is sent from the router
Refer to the exhibit. Router R2 is configured with multiple routes to reach network 10 1.1 0/24 from router R1. What protocol is chosen by router R2 to reach the destination network 10.1 1 0/24?
A. OSPF
B. static
C. EIGRP
D. eBGP
Question 2 Which two minimum parameters must be configured on an active interface to enable OSPFv2 to operate? (Choose two)
A. OSPF area
B. OSPF MD5 authentication key
C. IPv6 address
D. OSPF process ID
E. OSPF stub flag
Refer to the exhibit. After the configuration is applied, the two routers fail to establish an OSPF neighbor relationship. what is the reason for the problem?
A. The OSPF router IDs are mismatched
B. Router2 is using the default hello timer
C. The network statement on Router1 is misconfigured
D. The OSPF process IDs are mismatched
Refer to the exhibit. If the switch reboots and all routers have to re-establish OSPF adjacencies, which routers will become the new DR and BDR?
A. Router R3 will become the DR and router R1 will become the BDR.
B. Router R4 will become the DR and router R3 will become the BDR.
C. Router R1 will become the DR and router R2 will become the BDR.
D. Router R3 will become the DR and router R2 will become the BDR.
Refer to the exhibit. What action establishes the OSPF neighbor relationship without forming an adjacency?
A. modify priority
B. modify process ID
C. modify hello interval
D. modify network type
Refer to the exhibit. What is the next hop address for traffic that is destined to host 10.0.1.5?
A. Loopback 0
B. 10.0.1.4
C. 10.0.1.50
D. 10.0.1.3
An engineer must configure an OSPF neighbor relationship between router R1 and R3. The authentication configuration has been configured and the connecting interfaces are in the same 192.168.1.0/30 subnet. What are the next two steps to complete the configuration? (Choose two)
A. configure the hello and dead timers to match on both sides
B. configure the same process ID for the router OSPF process
C. configure the same router ID on both routing processes
D. configure the interfaces as OSPF active on both sides
E. configure both interfaces with the same area ID
What is the purpose of the show ip ospf interface command?
A. displaying OSPF-related interface information
B. displaying general information about OSPF routing processes
C. displaying OSPF neighbor information on a per-interface basis
D. displaying OSPF neighbor information on a per-interface-type basis
When OSPF learns multiple paths to a network, how does it select a route?
A. It multiple the active K value by 256 to calculate the route with the lowest metric.
B. For each existing interface, it adds the metric from the source router to the destination to calculate the route with the lowest bandwidth.
C. It divides a reference bandwidth of 100 Mbps by the actual bandwidth of the existing interface to calculate the router with the lowest cost.
D. It count the number of hops between the source router and the destination to determine the router with the lowest metric
A user configured OSPF and advertised the Gigabit Ethernet interface in OSPF. By default, which type of OSPF network does this interface belong to?
A. point-to-multipoint
B. point-to-point
C. broadcast
D. nonbroadcast
You have configured a router with an OSPF router ID, but its IP address still reflects the physical interface. Which action can you take to correct the problem in the least disruptive way?
A. Reload the OSPF process
B. Reload the router
C. Save the router configuration
D. Specify a loopback address
An engineer configured an OSPF neighbor as a designated router. Which state verifies the designated router is in the proper mode?
A. Exchange
B. 2-way
C. Full
D. Init
Refer to the exhibit. If OSPF is running on this network, how does Router 2 handle traffic from Site B to 10.10.13.128/25 at Site A?
A. It sends packets out of interface Fa0/2 only
B. It sends packets out of interface Fa0/1 only
C. It cannot send packets to 10.10.13.128/25
D. It load-balances traffic out of Fa0/1 and Fa0/2
A user configured OSPF in a single area between two routers. A serial interface connecting R1 and R2 is running encapsulation PPP. By default which OSPF network type is seen on this interface when the user types show ip ospf interface on R1 or R2?
A. point-to-multipoint
B. broadcast
C. point-to-point
D. non-broadcast
Refer to the exhibit. What does router R1 use as its OSPF router-ID?
A. 10.10.1.10
B. 10.10.10.20
C. 172.16.15.10
D. 192.168.0.1
Refer to the exhibit. The “show ip ospf interface” command has been executed on R1. How is OSPF configured?
Designated Router (ID) 10.11.11.11, Interface address 10.10.10.1
Backup Designated router (ID) 10.3.3.3, Interface address 10.10.10.3
Timer intervals configured, Hello 10, Dead 40, Wait 40, Retransmit 5
oob-resync timeout 40
Hello due in 00:00:08
Supports Link-local Signaling (LLS)
Cisco NSF helper support enabled
IETF NSF helper support enabled
Index 1/1/1, flood queue length 0
Next 0x0(0)/0x0(0)/0x0(0)
Last flood scan length is 1, maximum is 6
Last flood scan time is 0 msec, maximum is 1 msec
Neighbor Count is 3, Adjacent neighbor count is 3
Adjacent with neighbor 10.1.1.4
Adjacent with neighbor 10.2.2.2
Adjacent with neighbor 10.3.3.3 (Backup Designated Router)
Suppress hello for 0 neighbor(s)
A. The interface is not participating in OSPF
B. A point-to-point network type is configured
C. The default Hello and Dead timers are in use
D. There are six OSPF neighbors on this interface
R1 has learned route 192.168.12.0/24 via IS-IS, OSPF, RIP and Internal EIGRP. Under normal operating conditions, which routing protocol is installed in the routing table?
A. IS-IS
B. RIP
C. Internal EIGRP
D. OSPF
Refer to the exhibit. The default-information originate command is configured under the R1 OSPF configuration. After testing, workstations on VLAN 20 at Site B cannot reach a DNS server on the Internet.
Which action corrects the configuration issue?
A. Add the default-information originate command on R2
B. Add the always keyword to the default-information originate command on R1
C. Configure the ip route 0.0.0.0 0.0.0.0 10.10.10.18 command on R1
D. Configure the ip route 0.0.0.0 0.0.0.0 10.10.10.2 command on R2
Refer to the exhibit. To which device does Router1 send packets that are destined to host 10.10.13.165?
Router1#show ip route
Gateway of last resort is 10.10.11.2 to network 0.0.0.0
209.165.200.0/27 is subnetted, 1 subnets
B 209.165.200.224 [20/0] via 10.10.12.2,03:32:14
209.165.201.0/27 is subnetted, 1 subnets
B 209.165.201.0 [20/0] via 10.10.12.2,02:26:53
209.165.202.0/27 is subnetted, 1 subnets
B 209.165.202.128 [20/0] via 10.10.12.2,02:46:03
10.0.0.0/8 is variably subneted, 10 subnets, 4 masks
O 10.10.13.0/25 [110/2] via 10.10.10.1,00:00:04, GigabitEthernet0/0
O 10.10.13.128/28 [110/2] via 10.10.10.5,00:00:12, GigabitEthernet0/1
O 10.10.13.144/28 [110/2] via 10.10.10.9,00:01:57, GigabitEthernet0/2
O 10.10.13.160/29 [110/2] via 10.10.10.5,00:00:12, GigabitEthernet0/1
O 10.10.13.208/29 [110/2] via 10.10.10.13,00:01:57, GigabitEthernet0/3
S* 0.0.0.0/0 [1/0] via 10.10.11.2
A. Router2
B. Router3
C. Router4
D. Router5
