CCNA: Scaling Networks
Skills Assessment (OSPF) Student Training Exam
Topology
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CCNA: Scaling Networks SA Exam
Addressing Table
Device Interface IP Address Subnet Mask Default Gateway
R1 G0/1 172.27.0.1 255.255.255.0 N/A
S0/0/0 172.27.123.1 255.255.255.252 N/A
Lo1 172.27.1.1 255.255.255.0 N/A
Lo2 172.27.2.1 255.255.255.0 N/A
Lo3 172.27.3.1 255.255.255.0 N/A
R2 S0/0/0 172.27.123.2 255.255.255.252 N/A
S0/0/1 172.27.123.5 255.255.255.252 N/A
Lo0 209.165.200.225 255.255.255.248 N/A
R3 G0/1 172.27.0.3 255.255.255.0 N/A
S0/0/1 172.27.123.6 255.255.255.252 N/A
Lo4 172.27.4.1 255.255.255.0 N/A
Lo5 172.27.5.1 255.255.255.0 N/A
Lo6 172.27.6.1 255.255.255.0 N/A
S1 VLAN 1 172.27.0.11 255.255.255.0 172.27.0.2
S2 VLAN 1 172.27.0.12 255.255.255.0 172.27.0.2
S3 VLAN 1 172.27.0.13 255.255.255.0 172.27.0.2
PC-A NIC 172.27.0.21 255.255.255.0 172.27.0.2
PC-B NIC 172.27.0.22 255.255.255.0 172.27.0.2
PC-C NIC 172.27.0.23 255.255.255.0 172.27.0.2
Assessment Objectives
Part 1: Initialize Devices (10 points, 5 minutes)
Part 2: Configure Device Basic Settings (45 points, 30 minutes)
Part 3: Configure LAN Redundancy and Link Aggregation (28 points, 25 minutes)
Part 4: Configure OSPFv2 Dynamic Routing Protocol (51 points, 30 minutes)
Part 5: Verify Network Connectivity and HSRP Configuration (10 points, 15 minutes)
Part 6: Display IOS Image and License Information (6 points, 5 minutes)
Scenario
In this Skills Assessment (SA), you will create a small network. You must connect the network devices, and
configure those devices to support IPv4 connectivity, LAN redundancy, and link aggregation. You will then
configure OSPFv2 and HSRP on the network and verify connectivity. Finally, you will demonstrate your
knowledge of IOS images and licensing.
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CCNA: Scaling Networks SA Exam
Required Resources
·ð 3 Routers (Cisco 1941 with Cisco IOS Release 15.2(4)M3 universal image or comparable)
·ð 3 Switches (Cisco 2960 with Cisco IOS Release 15.0(2) lanbasek9 image or comparable)
·ð 3 PCs (Windows 7, Vista, or XP with terminal emulation program, such as Tera Term)
·ð Console cable to configure the Cisco IOS devices via the console ports
·ð Ethernet and Serial cables as shown in the topology
Part 1: Initialize Devices
Total points: 10
Time: 5 minutes
Step 1: Initialize and reload the routers and switches.
Erase the startup configurations and reload the devices.
Before proceeding, have your instructor verify device initializations.
Task IOS Command Points
Erase the startup-config file on all (2 points)
routers.
Reload all routers. (2 points)
Erase the startup-config file on all (2 points)
switches and remove the old
VLAN database.
Reload all switches. (2 points)
Verify VLAN database is absent (2 points)
from flash on all switches.
Instructor Sign-off Part 1: _________________________
Points: __________ of 10
Part 2: Configure Device Basic Settings
Total points: 45
Time: 30 minutes
Step 1: Configure R1.
Configuration tasks for R1 include the following:
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CCNA: Scaling Networks SA Exam
Configuration Item or Task Specification Points
Disable DNS lookup (1/2 point)
Router name R1 (1/2 point)
Encrypted privileged EXEC password class (1/2 point)
Console access password cisco (1/2 point)
Telnet access password cisco (1/2 point)
Encrypt the plain text passwords. (1/2 point)
MOTD banner Unauthorized Access is Prohibited! (1/2 point)
Set the description
Set the Layer 3 IPv4 address. Refer to the
Interface G0/1 (1 point)
Addressing Table for IPv4 address information.
Activate Interface
Set the description
Set the Layer 3 IPv4 address. Refer to the
Addressing Table for IPv4 address information.
Interface S0/0/0 (1 points)
Set a clocking rate of 128000.
Activate Interface
Set the Layer 3 IPv4 address. Refer to the
Interface Loopback 1 (LAN) (1/2 point)
Addressing Table for IPv4 address information.
Set the Layer 3 IPv4 address. Refer to the
Interface Loopback 2 (LAN) (1/2 point)
Addressing Table for IPv4 address information.
Set the Layer 3 IPv4 address. Refer to the
Interface Loopback 3 (LAN) (1/2 point)
Addressing Table for IPv4 address information.
Step 2: Configure R2.
Configuration tasks for R2 include the following:
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CCNA: Scaling Networks SA Exam
Configuration Item or Task Specification Points
Disable DNS lookup (1/2 point)
Router name R2 (1/2 point)
Encrypted privileged EXEC password class (1/2 point)
Console access password cisco (1/2 point)
Telnet access password cisco (1/2 point)
Encrypt the plain text passwords. (1/2 point)
MOTD banner Unauthorized Access is Prohibited! (1/2 point)
Set the description
Set the Layer 3 IPv4 address. Refer to the
Interface S0/0/0 (1 point)
Addressing Table for IPv4 address information.
Activate Interface
Set the description
Set the Layer 3 IPv4 address. Refer to the
Addressing Table for IPv4 address information.
Interface S0/0/1 (1 point)
Set a clocking rate of 128000.
Activate Interface
Set the description.
Interface Loopback 0 (Simulated
(1 point)
Internet connection)
Set the Layer 3 IPv4 address to 209.165.200.225/29.
Default route Configure a default route out Lo0. (1/2 point)
Step 3: Configure R3.
Configuration tasks for R3 include the following:
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CCNA: Scaling Networks SA Exam
Configuration Item or Task Specification Points
Disable DNS lookup (1/2 point)
Router name R3 (1/2 point)
Encrypted privileged EXEC password class (1/2 point)
Console access password cisco (1/2 point)
Telnet access password cisco (1/2 point)
Encrypt the plain text passwords. (1/2 point)
MOTD banner Unauthorized Access is Prohibited! (1/2 point)
Set the description
Set the Layer 3 IPv4 address. Refer to the
Interface G0/1 (1 point)
Addressing Table for IPv4 address information.
Activate Interface
Set the description
Set the Layer 3 IPv4 address. Refer to the
Interface S0/0/1 (1 point)
Addressing Table for IPv4 address information.
Activate Interface
Set the Layer 3 IPv4 address. Refer to the
Interface Loopback 4 (LAN) (1/2 point)
Addressing Table for IPv4 address information.
Set the Layer 3 IPv4 address. Refer to the
Interface Loopback 5 (LAN) (1/2 point)
Addressing Table for IPv4 address information.
Set the Layer 3 IPv4 address. Refer to the
Interface Loopback 6 (LAN) (1/2 point)
Addressing Table for IPv4 address information.
Step 4: Configure S1.
Configuration tasks for S1 include the following:
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CCNA: Scaling Networks SA Exam
Configuration Item or Task Specification Points
Disable DNS lookup (1/2 point)
Switch name S1 (1/2 point)
Encrypted privileged EXEC password class (1/2 point)
Console access password cisco (1/2 point)
Telnet access password cisco (1/2 point)
Encrypt the plain text passwords. (1/2 point)
MOTD banner Unauthorized Access is Prohibited! (1/2 point)
Assign an IPv4 address to the default Refer to the Addressing Table for IPv4 address
(1/2 point)
SVI. information.
Assign the default-gateway. Refer to the Addressing Table. (1/2 point)
Force trunking on interfaces
(1 point)
connected to S2 and S3. Use VLAN 1 as the native VLAN.
Disable the Dynamic Trunking
(1 point)
Protocol (DTP) on all other ports. Make sure ports are configured as access ports.
Shutdown all unused ports. (1 point)
Step 5: Configure S2.
Configuration tasks for S2 include the following:
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CCNA: Scaling Networks SA Exam
Configuration Item or Task Specification Points
Disable DNS lookup (1/2 point)
Switch name S2 (1/2 point)
Encrypted privileged exec password class (1/2 point)
Console access password cisco (1/2 point)
Telnet access password cisco (1/2 point)
Encrypt the clear text passwords. (1/2 point)
MOTD banner Unauthorized Access is Prohibited! (1/2 point)
Assign an IPv4 address to the default Refer to the Addressing Table for IPv4 address
(1/2 point)
SVI. information.
Assign the default-gateway. Refer to the Addressing Table. (1/2 point)
Force trunking on interfaces
(1 point)
connected to S1 and S3. Use VLAN 1 as the native VLAN.
Disable the Dynamic Trunking
(1 point)
Protocol (DTP) on all other ports. Make sure ports are configured as access ports.
Shutdown all unused ports. (1 point)
Step 6: Configure S3
Configuration tasks for S3 include the following:
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CCNA: Scaling Networks SA Exam
Configuration Item or Task Specification Points
Disable DNS lookup (1/2 point)
Switch name S3 (1/2 point)
Encrypted privileged EXEC password class (1/2 point)
Console access password cisco (1/2 point)
Telnet access password cisco (1/2 point)
Encrypt the plain text passwords. (1/2 point)
MOTD banner Unauthorized Access is Prohibited! (1/2 point)
Assign an IPv4 address to the default Refer to the Addressing Table for IPv4 address
(1/2 point)
SVI. information.
Assign the default-gateway. Refer to the Addressing Table. (1/2 point)
Force trunking on interfaces
(1 point)
connected to S1 and S2. Use VLAN 1 as the native VLAN.
Disable the Dynamic Trunking
(1 point)
Protocol (DTP) on all other ports. Make sure ports are configured as access ports.
Shutdown all unused ports. (1 point)
Step 7: Configure IPv4 addresses on PCs.
Configuration Item or Task Specification Points
Configure static IPv4 address
(1/2 point)
information on PC-A Refer to Addressing Table for IPv4 address information.
Configure static IPv4 address
(1/2 point)
information on PC-B Refer to Addressing Table for IPv4 address information.
Configure static IPv4 address
(1/2 point)
information on PC-C Refer to Addressing Table for IPv4 address information.
Instructor Sign-off Part 2: ______________________
Points: _________ of 45
Part 3: Configure LAN Redundancy and Link Aggregation
Total points: 28
Time: 25 minutes
Step 1: Configure Spanning Tree on S1.
Configuration tasks for S1 include the following:
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CCNA: Scaling Networks SA Exam
Configuration Item or Task Specification Points
Configure Rapid PVST+. (2 points)
Configure as primary root bridge for
(2 points)
VLAN 1.
Configure PortFast and BPDU Guard
(2 points)
on the interface connected to PC-A.
Step 2: Configure Spanning Tree on S2.
Configuration tasks for S2 include the following:
Configuration Item or Task Specification Points
Configure Rapid PVST+. (2 points)
Configure PortFast and BPDU Guard
(2 points)
on the interface connected to PC-B.
Step 3: Configure Spanning Tree on S3.
Configuration tasks for S3 include the following:
Configuration Item or Task Specification Points
Configure Rapid PVST+. (2 points)
Configure as secondary root bridge for
(2 points)
VLAN 1.
Configure PortFast and BPDU Guard
(2 points)
on the interface connected to PC-C.
Step 4: Configure HSRP on R1.
Configuration tasks for R1 include the following:
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CCNA: Scaling Networks SA Exam
Configuration Item or Task Specification Points
Group: 1
Configure the HSRP virtual IP address
Virtual IP address: 172.27.0.2 (2 points)
on interface G0/1.
Make this the primary HSRP router. (2 points)
Configure so this router becomes the
(2 points)
primary HSRP router on a reboot.
Step 5: Configure HSRP on R3.
Configuration tasks for R3 include the following:
Configuration Item or Task Specification Points
Group: 1
Configure the HSRP virtual IP address
(2 points)
on interface G0/1.
Virtual IP address: 172.27.0.2
Step 6: Configure an LACP EtherChannel between S1 and S3.
Configuration tasks include the following:
Configuration Item or Task Specification Points
On S1, configure an LACP EtherChannel
(2 points)
on interfaces connected to S3. Use group 1 and enable LACP unconditionally.
On S3, configure an LACP EtherChannel Use group 1 and enable LACP only if a LACP
(2 points)
on interfaces connected to S1. device is detected.
Instructor Sign-off Part 3: ______________________
Points: _________ of 28
Part 4: Configure OSPFv2 Dynamic Routing Protocol
Total points: 51
Time: 30 minutes
Step 1: Configure OSPFv2 on R1.
Configuration tasks for R1 include the following:
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CCNA: Scaling Networks SA Exam
Configuration Item or Task Specification Points
OSPF Process ID 1 (1 point)
Router ID 1.1.1.1 (1 point)
Use classless network addresses.
Assign S0/0/0 and G0/1 interfaces
to Area 0. (2 points)
Assign Loopback interfaces to
Advertise directly connected networks. Area 1.
Set all LAN interfaces as passive. (2 points)
Configure an inter-area summary route for the networks
(2 points)
in area 1.
Change the default cost reference bandwidth to support
(2 points)
Gigabit interface calculations. 1000
Set the bandwidth on S0/0/0. 128 Kb/s (1 point)
Adjust the metric cost of S0/0/0. Cost: 7500 (1 point)
Key: 1
Create an OSPF MD5 key on S0/0/0. (2 points)
Password: CISCO
Apply MD5 authentication to S0/0/0. (2 points)
Step 2: Configure OSPFv2 on R2.
Configuration tasks for R2 include the following:
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CCNA: Scaling Networks SA Exam
Configuration Item or Task Specification Points
OSPF Process ID 1 (1 point)
Router ID 2.2.2.2 (1 point)
Use classless network addresses.
All connected networks should be
(2 points)
assigned to Area 0 except the Lo0
Advertise directly connected networks. network.
Propagate the default route to all other OSPF routers. (2 points)
Change the default cost reference bandwidth to allow for
(2 points)
Gigabit interfaces. 1000
Set the bandwidth on all serial interfaces. 128 Kb/s (1 point)
Adjust the metric cost of S0/0/0. Cost: 7500 (1 point)
Key: 1
Create an OSPF MD5 key on the serial interfaces. (2 points)
Password: CISCO
Apply MD5 authentication on the serial interfaces. (2 points)
Step 3: Configure OSPFv2 on R3.
Configuration tasks for R3 include the following:
Configuration Item or Task Specification Points
OSPF Process ID 1 (1 point)
Router ID 3.3.3.3 (1 point)
Use classless network addresses
Assign S0/0/1 and G0/1 interfaces
to Area 0 (2 points)
Assign Loopback interfaces to Area
Advertise directly connected networks. 3
Set all LAN interfaces as passive. (2 points)
Configure an inter-area summary route for the
(2 points)
networks in area 3.
Change the default cost reference bandwidth to
(2 points)
support Gigabit interface calculations. 1000
Set the serial interface bandwidth. 128 Kb/s (1 point)
Key: 1
Create an OSPF MD5 key on S0/0/1. (2 points)
Password: CISCO
Apply MD5 authentication to S0/0/1. (2 points)
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CCNA: Scaling Networks SA Exam
Step 4: Verify network connectivity.
Verify that OSPF is functioning as expected. Enter the appropriate CLI command to discover the following
information:
Question Response Points
What command will display all connected OSPFv2 routers? (1 point)
What command displays a summary list of OSPF interfaces (1 point)
that includes a column for the cost of each interface?
What command displays the OSPF Process ID, Router ID, (1 point)
Address summarizations, Routing Networks, and Passive
Interfaces configured on a router?
What command displays only OSPF routes? (1 point)
What command displays detailed information about the (1 point)
OSPF interfaces, including the authentication method?
What command displays the OSPF section of the running- (1 point)
configuration?
Instructor Sign-off Part 4: ______________________
Points: _________ of 51
Part 5: Verify Network Connectivity and HSRP Configuration
Total points: 10
Time: 15 minutes
Use the listed command to verify that network is working as expected.
Step 1: Verify end-to-end connectivity.
Take corrective action if results are other than expected.
From Command To Expected Results Points
PC-A ping PC-C Ping should be successful. (1 point)
PC-B ping PC-A Ping should be successful. (1 point)
PC-B ping PC-C Ping should be successful. (1 point)
PC-B ping Default Gateway Ping should be successful. (1 point)
PC-B ping 209.165.200.225 Ping should be successful. (1 point)
PC-B tracert 209.165.200.225 Trace should route through R1. (1 point)
Note: It may be necessary to disable the PC firewall for pings to be successful.
Step 2: Verify HSRP is working as expected.
Issue the shutdown command on R1 G0/1, and then re-issue the following commands to verify that HSRP is
working as expected:
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CCNA: Scaling Networks SA Exam
From Command To Expected Results Points
PC-B ping 172.27.0.1 Ping should not be successful. (1 point)
PC-B ping Default Gateway Ping should be successful. (1 point)
PC-B ping 209.165.200.225 Ping should be successful. (1 point)
PC-B tracert 209.165.200.225 Trace should route through R3. (1 point)
Note: Wait a few seconds before testing after shutting down the interface on R1.
Instructor Sign-off Part 5: ______________________
Points: _________ of 10
Part 6: Display IOS Image and License Information
Total points: 6
Time: 5 minutes
Enter the appropriate CLI command to discover the following information:
Question Response Points
What command displays the IOS image that is (1 point)
currently being used by the network device?
What command displays the size of an IOS image (1 point)
loaded on a network device?
What command displays a summary list of the (1 point)
Technology Package licenses on an ISR-G2 device
that includes the current the state of each of those
licenses?
What command displays the amount of space available (1 point)
to install an additional IOS image to a network device?
What command displays a list of all the licenses on an (1 point)
ISR-G2 device?
What command would you use to accept the end user (1 point)
license agreement?
Instructor Sign-off Part 6: ______________________
Points: _________ of 6
Part 7: Cleanup
NOTE: DO NOT PROCEED WITH CLEANUP UNTIL YOUR INSTRUCTOR HAS GRADED YOUR SKILLS
EXAM AND HAS INFORMED YOU THAT YOU MAY BEGIN CLEANUP.
Before turning off power to the routers, remove the NVRAM configuration files (if saved) from all devices.
Disconnect and neatly put away all cables that were used in the SA exam.
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CCNA: Scaling Networks SA Exam
Router Interface Summary Table
Router Interface Summary
Router Model Ethernet Interface #1 Ethernet Interface #2 Serial Interface #1 Serial Interface #2
1800 Fast Ethernet 0/0 Fast Ethernet 0/1 Serial 0/0/0 (S0/0/0) Serial 0/0/1 (S0/0/1)
(F0/0) (F0/1)
1900 Gigabit Ethernet 0/0 Gigabit Ethernet 0/1 Serial 0/0/0 (S0/0/0) Serial 0/0/1 (S0/0/1)
(G0/0) (G0/1)
2801 Fast Ethernet 0/0 Fast Ethernet 0/1 Serial 0/1/0 (S0/1/0) Serial 0/1/1 (S0/0/1)
(F0/0) (F0/1)
2811 Fast Ethernet 0/0 Fast Ethernet 0/1 Serial 0/0/0 (S0/0/0) Serial 0/0/1 (S0/0/1)
(F0/0) (F0/1)
2900 Gigabit Ethernet 0/0 Gigabit Ethernet 0/1 Serial 0/0/0 (S0/0/0) Serial 0/0/1 (S0/0/1)
(G0/0) (G0/1)
Note: To find out how the router is configured, look at the interfaces to identify the type of router and how many
interfaces the router has. There is no way to effectively list all the combinations of configurations for each router
class. This table includes identifiers for the possible combinations of Ethernet and Serial interfaces in the device.
The table does not include any other type of interface, even though a specific router may contain one. An
example of this might be an ISDN BRI interface. The string in parenthesis is the legal abbreviation that can be
used in Cisco IOS commands to represent the interface.
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