CCNA Guide to Cisco Networking, Fourth Edition Chapter 12 Solutions
Chapter 12 Solutions
Review Questions
1. What address does a switch build into its table to successfully send data to that device?
2. Which of the following types of switching methods reads the first 64 bytes of a frame before
forwarding it?
3. The ____________ provides sufficient spacing between frames so that network interfaces have time
to process a packet before receiving another.
4. Which devices look at a MAC address when making their forwarding decision? (Choose all that
5. Which of the following network media provides the lowest latency?
6. Which of the following correctly describes microsegmentation?
7. Which of the following Ethernet errors describes a packet that has a bad FCS and is over 1518
bytes?
8. When two Ethernet stations can send more than 64 bytes of their data frames before detecting a
collision, this is called a _____________.
9. The minimum size of an Ethernet frame should be _____ bytes.
a. 32
10. Collisions and Ethernet errors typically occur within the first _____ bytes of an Ethernet frame, which
is why fragment-free switching catches most Ethernet errors.
11. Which of the following describes a method of Ethernet networking that does not have collisions?
12. Which of the following switching types has the highest latency?
13. If a broadcast from one computer causes multiple stations to respond with additional broadcast
traffic, and the level of broadcast traffic goes above 126 broadcasts per second, the situation is deemed
14. Which of the following fall under the heading of Fast Ethernet? (Choose all that apply.)
15. Which IEEE standard governs Fast Ethernet?
a. 802.3a
c. 802.3g
16. Which of the following can divide a collision domain? (Choose all that apply.)
17. What command allows you to limit the number of MAC addresses learned by a switch port?
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18. What benefits would your network have by replacing all 10Mbps hubs with 10Mbps Catalyst
switches?(Choose all that apply).
19. Which statements are true about half-duplex Ethernet?
20. Which statement is true about store-and-forward switching? (Choose all that apply).
21. When collisions are above 5%, you should consider _______________.
a. segmenting the LAN
22. Which of the following advantages can Cisco switches provide over hubs? (Choose all that apply.)
23. Which of the following are true of half-duplex operation on a CSMA/CD network? (Choose all that
24. The ____________ switching method begins forwarding the incoming frame immediately after
reading the destination address.
25. What command is used to set a port on a switch to full-duplex mode.
a. mode full-duplex
CCNA Guide to Cisco Networking, Fourth Edition Chapter 12 Solutions
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Case Projects
Case Project 1
Necessary information includes broadcast levels, Ethernet error rates and types of errors. Other
information would include the number of nodes, types of devices in use, protocols in use, media type
implemented, and network access method.
Case Project 2
Case Project 3
You can use port security. The unique address that allows this to be possible is the MAC address.