| Question 1 | Data formatting, such as encryption and decryption, are found at which layer of the OSI Reference model? |
| A1: | Answer: D. The Presentation layer of the OSI Reference model defines data formatting, including the formatting for encryption and decryption. |
| Question 2 | Which layer of the Cisco Hierarchical model should not have access lists controlling policies in the network? |
| A2: | Answer: B. The Core layer of the Cisco Hierarchical model should route data as quickly as possible. Access lists or policies require processing that slows down devices handling heavy network traffic. Therefore, these lists shouldn't be included in the Core layer. |
| Question 3 | Hierarchical network models provide which of the following? (Choose all that apply.) -
A. A way to identify placement of devices in the network -
B. Simplification of complexities in networks -
C. Compatibility between computer vendors -
D. All of the above |
| A3: | Answer: D. All of the above are true. Hierarchical network models help us to decide where equipment and policies are placed, simplify the complexities of networks, and make sure that one vendor's hardware operating at one layer will not affect hardware operating at another layer. |
| Question 4 | The Physical layer is part of which hierarchical model? -
A. Peer-to-Peer Networking model -
B. Troubleshooting model -
C. Internetwork Cabling model -
D. Internetwork Troubleshooting model -
E. OSI Reference model |
| A4: | Answer: E. The Physical layer is the layer that transmits and receives data in 1s and 0s and is the last layer in the OSI Reference model. |
| Question 5 | Which step of the Cisco Internetwork Troubleshooting model is used for collecting additional information from devices and users experiencing a reported network problem or issue? |
| A5: | Answer: C. By gathering facts you can collect information from the users having problems, as well as collect information on your own from prior problem tickets. You can also use show and debug commands on Cisco equipment to locate and retrieve information to add to your facts. |
| Question 6 | If you add a new workgroup-class switch to the network, in which layer of the Cisco Hierarchical Model would you place that switch? -
A. Core Layer -
B. Network layer -
C. Distribution layer -
D. Access layer -
E. Primary layer |
| A6: | Answer: D. The Access layer is where users and workgroups should be placed in the network. |
| Question 7 | Which layer of the OSI Reference model is where users interact with applications? |
| A7: | Answer: E. The Application layer is the layer where users interact with the applications in the OSI Reference model. |
| Question 8 | In which layer of the OSI Reference Model would IP addresses be found? -
A. The TCP layer -
B. The Core layer -
C. The Network layer -
D. The IP layer -
E. The Application layer -
F. The Physical layer |
| A8: | Answer: C. The Network layer of the OSI Reference model is where network addressing using IP addresses are defined. |
