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Home ‣ Networking ‣ Spanning Tree Protocol See What Others Are Saying!
- Question
Layer 2 switching provides which of the following?
- Hardware-based bridging (ASIC)
- Wire speed
- Low latency
- Low cost
Options- A. 1 and 3
- B. 2 and 4
- C. 1, 2 and 4
- D. All of the above
- Correct Answer
- All of the above
ExplanationSwitches, unlike bridges, are hardware based. Cisco says its switches are wire speed and provide low latency, and I guess they are low cost compared to their prices in the 1990s. - 1. A default Frame Relay WAN is classified as what type of physical network?
Options- A. Point-to-point
- B. Broadcast multi-access
- C. Non-broadcast multi-access
- D. Non-broadcast multipoint Discuss
- 2. What layer of the OSI model would you assume the problem is in if you type show interface serial 1 and receive the following message? "Serial1 is down, line protocol is down."
Options- A. Physical layer
- B. Data Link layer
- C. Network layer
- D. None. It is a router problem. Discuss
- 3. You want to totally reinitialize the router and replace the current running-config with the current startup-config. What command will you use?
Options- A. replace run start
- B. copy run start
- C. copy start run
- D. reload Discuss
- 4. You type Router#sh ru and receive an % ambiguous command error. Why did you receive this message?
Options- A. The command requires additional options or parameters.
- B. There is more than one show command that starts with the letters ru.
- C. There is no show command that starts with ru.
- D. The command is being executed from the wrong router mode. Discuss
- 5. What command will display the forward/filter table?
Options- A. show mac filter
- B. show run
- C. show mac address-table
- D. show mac filter-table Discuss
- 6. What is the maximum distance with maximum data rate for 802.11b?
Options- A. About 65-75 feet
- B. About 90-100 feet
- C. About 150 feet
- D. Over 200 feet Discuss
- 7. You have two switches connected together with two crossover cables for redundancy, and STP is disabled. Which of the following will happen between the switches?
Options- A. The routing tables on the switches will not update.
- B. The MAC forward/filter table will not update on the switch.
- C. Broadcast storms will occur on the switched network.
- D. The switches will automatically load-balance between the two links. Discuss
- 8. Which command will show you all the translations active on your router?
Options- A. show ip nat translations
- B. show ip nat statistics
- C. debug ip nat
- D. clear ip nat translations * Discuss
- 9. You telnet to a router and make your necessary changes; now you want to end the Telnet session. What command do you type in?
Options- A. close
- B. disable
- C. disconnect
- D. exit Discuss
- 10. Port Address Translation is also termed what?
Options- A. NAT Fast
- B. NAT Static
- C. NAT Overload
- D. Overloading Static Discuss
More questions
Correct Answer: Non-broadcast multi-access
Explanation:
Frame Relay, by default, is a non-broadcast multi-access (NBMA) network, which means that broadcasts, such as RIP updates, will not be forwarded across the link by default.
Correct Answer: Physical layer
Explanation:
If you see that a serial interface and the protocol are both down, then you have a Physical layer problem. If you see
serial1 is up,
line protocol is down, then you are not receiving (Data Link) keepalives from the remote end.
Correct Answer: reload
Explanation:
To completely replace the running-config with the startup-config, you must reload the router. Note : You may have picked option C, which isn't a bad answer. Remember, though, it doesn't replace the configuration, it appends it.
Correct Answer: There is more than one show command that starts with the letters ru.
Explanation:
The
% ambiguous command error means that there is more then one possible command that starts with
ru. Use a question mark to find the correct command.
Correct Answer: show mac address-table
Explanation:
The command
show mac address-table displays the forward/filter table on the switch.
Correct Answer: About 150 feet
Explanation:
The IEEE 802.11b standard provides a maximum data rate of up to only 11Mbps, and you can be around 150 feet, maybe farther, depending on conditions.
Correct Answer: Broadcast storms will occur on the switched network.
Explanation:
If spanning tree is disabled on a switch and you have redundant links to another switch, broadcast storms will occur, among other possible problems.
Correct Answer: show ip nat translations
Explanation:
The command
show ip nat translations will show you the translation table containing all the active NAT entries.
Correct Answer: exit
Explanation:
Since the question never mentioned anything about a suspended session, you can assume that the Telnet session is still open, and you would just type
exit to close the session.
Correct Answer: NAT Overload
Explanation:
Another term for port address translation is NAT Overload because that is the command used to enable port address translation.
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