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- Question
If you use either Telnet or FTP, which is the highest layer you are using to transmit data?
Options- A. Application
- B. Presentation
- C. Session
- D. Transport
- Correct Answer
- Application
ExplanationBoth FTP and Telnet use TCP at the Transport layer; however, they both are Application layer protocols, so the Application layer is the best answer. - 1. What is the problem with an interface if you type show interface serial 0 and receive the following message? "Serial0 is administratively down, line protocol is down."
Options- A. The keepalives are different times.
- B. The administrator has the interface shut down.
- C. The administrator is pinging from the interface.
- D. No cable is attached. Discuss
- 2. If you wanted administrators to see a message when logging into the router, which command would you use?
Options- A. message banner motd
- B. banner message motd
- C. banner motd
- D. message motd Discuss
- 3. If you want to have more than one Telnet session open at the same time, what keystroke combination would you use?
Options- A. Tab+Spacebar
- B. Ctrl+X, then 6
- C. Ctrl+Shift+X, then 6
- D. Ctrl+Shift+6, then X Discuss
- 4. Which command will show you whether a DTE or a DCE cable is plugged into serial 0?
Options- A. sh int s0
- B. sh int serial 0
- C. show controllers serial 0
- D. show serial 0 controllers Discuss
- 5. You type the following command into the router and receive the following output:
Why was this error message displayed?Router#show serial 0/0 ^ % Invalid input detected at '^' marker.
Options- A. You need to be in privileged mode.
- B. You cannot have a space between serial and 0/0.
- C. The router does not have a serial0/0 interface.
- D. Part of the command is missing. Discuss
- 6. What command do you type to save the configuration stored in RAM to NVRAM?
Options- A. Router(config)#copy current to starting
- B. Router#copy starting to running
- C. Router(config)#copy running-config startup-config
- D. Router#copy run startup Discuss
- 7. Which of the following commands displays the configurable parameters and statistics of all interfaces on a router?
Options- A. show running-config
- B. show startup-config
- C. show interfaces
- D. show versions Discuss
- 8. If your routing table has a static, a RIP, and an IGRP route to the same network, which route will be used to route packets by default?
Options- A. Any available route
- B. RIP route
- C. Static route
- D. IGRP route
- E. They will all load-balance. Discuss
- 9. What is route poisoning?
Options- A. It sends back the protocol received from a router as a poison pill, which stops the regular updates.
- B. It is information received from a router that can't be sent back to the originating router.
- C. It prevents regular update messages from reinstating a route that has just come up.
- D. It describes when a router sets the metric for a downed link to infinity. Discuss
- 10. What is split horizon?
Options- A. Information about a route should not be sent back in the direction from which the original update came.
- B. It splits the traffic when you have a large bus (horizon) physical network.
- C. It holds the regular updates from broadcasting to a downed link.
- D. It prevents regular update messages from reinstating a route that has gone down. Discuss
More questions
Correct Answer: The administrator has the interface shut down.
Explanation:
If an interface is shut down, the
show interface command will show the interface as administratively shut down. (It is possible that no cable is attached, but you can't tell that from this message.)
Correct Answer: banner motd
Explanation:
The typical banner is a message of the day (MOTD) and is set by using the global configuration mode command
banner motd.
Correct Answer: Ctrl+Shift+6, then X
Explanation:
To keep open one or more Telnet sessions, use the
Ctrl+Shift+6 and then
X keystroke combination.
Correct Answer: show controllers serial 0
Explanation:
The
show controllers serial 0 command will show you whether either a DTE or DCE cable is connected to the interface. If it is a DCE connection, you need to add clocking with the clock rate command.
Correct Answer: Part of the command is missing.
Explanation:
You can view the interface statistics from user mode, but the command is
show interface serial 0/0.
Correct Answer: Router#copy run startup
Explanation:
To copy the running-config to NVRAM so that it will be used if the router is restarted, use the
copy running-config startup-config command (
copy run start for short).
Correct Answer: show interfaces
Explanation:
With the
show interfaces command, you can view the configurable parameters, get statistics for the interfaces on the router, verify if the interfaces are shut down, and see the IP address of each interface.
Correct Answer: Static route
Explanation:
Static routes have an administrative distance of 1 by default. Unless you change this, a static route will always be used over any other found route. IGRP has an administrative distance of 100, and RIP has an administrative distance of 120, by default.
Correct Answer: It describes when a router sets the metric for a downed link to infinity.
Explanation:
Another way to avoid problems caused by inconsistent updates and to stop network loops is route poisoning. When a network goes down, the distance-vector routing protocol initiates route poisoning by advertising the network with a metric of 16, or unreachable (sometimes referred to as infinite).
Correct Answer: Information about a route should not be sent back in the direction from which the original update came.
Explanation:
A split horizon will not advertise a route back to the same router it learned the route from.
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