640-822 test questions

Test 11
1. Which of the following would best describe what an administrative distance of 0 means?
0 is the administrative distance for EIGRP.
0 is the administrative distance for RIP.
0 is the default administrative distance for directly connected networks.
0 is the administrative distance for OSPF.
None of the above.
2. Which of the following commands will disable CDP on an interface?
Router(config-if)#no cdp run
Router(config-if)# no cdp enable
Router#no cdp enable
Router(config-if)#disable CDP
None of the above.
3. At which layer of the 7-layer OSI model is a virtual circuit established, maintained, and then terminated?
The Network layer is responsible for setting up, maintaining, and tearing down virtual circuits.
The Presentation layer is responsible for setting up, maintaining, and tearing down virtual circuits.
The Transport layer is responsible for setting up, maintaining, and tearing down virtual circuits.
The Session layer is responsible for setting up, maintaining, and tearing down virtual circuits.
4. As data moves from layer to layer through the OSI model (protocol stack), protocol information is added by each layer.
These added trailers and headers are referred to as protocol data units (PDUs). This is the information that the destination computer uses to define how the data should be processed and is known as encapsulation.
Which of the following statements hold true in regards to how upper layer data is segmented for the layer directly below it?
The Data Link layer takes the data from the layer above it and segments it with the MAC address for the receiving host.
Data from the upper layers is given to the Network layer where it is segmented with an IP field for each frame.
The Session layer determines how data should be segmented based on whether full duplex or half du-plex will be used for communication.
The Transport layer is responsible for segmenting upper layer data into MTUs of 1500 bytes by TCP which adds Sequence number fields, ACK\SYN fields and CRC fields for reliability.
5. You are presented with the following IP address. 192.37.13.66/26. Choose the correct network ID, and how many valid Hosts per network. (Choose 2)
64 hosts per network
62 hosts per network.
The network ID is 192.37.13.64
The network ID is 192.37.13.0
There is only one correct answer.
6. At the command prompt in user exec mode you have entered the (?) for help and at the bottom of the screen you notice the following at the bottom of the screen:
--more--
Which of the following statements would be accurate in reference to viewing more of the available help information?
Pressing the enter key will allow you to view one full screen at a time.
Pressing the tab key will allow you to view one line at a time.
Pressing the space bar will allow you to view one full screen at a time.
Pressing the tab key will allow you to view one full screen at a time.

7. It is early Monday morning when you find that your associate did not set CHAP properly on the in house router. The router is located in another building, so you call your coworker Joe on the phone to tell him which command is required to set CHAP on s1 of the router. Which of the following would it be?
router(config-if)#ppp chap
router(config-if)#ppp encapsulation chap
router(config-if)#ppp authentication chap
router(config-if)#ppp enable chap
8. Which of the following commands would be correct if you chose to identify the basic system configuration hardware as well as the software version?
The ‘router>show version’ command is used to identify the system hardware and software version.
The ‘router#show config’ command is used to identify the system hardware and software version.
The ‘router>show config’ command is used to identify the system hardware and software version.
The ‘router#show version’ command is used to identify the system hardware and software version.
9. Which of the following statements about bringing a the router up from user mode to privileged mode would be the most accurate?
Once the router interface message appears press the enter key to get a prompt similar to the following ‘router>’, and this is referred to as privileged mode.
When the router completes the POST process press the ‘Enter’ key for the interface message, followed by the ‘enable’ command to get to user exec mode.
Once the router interface message appears press the enter key to get a prompt similar to the following ‘router>’, and this is referred to as user exec mode.
When the router completes the POST process press the ‘Enter’ key for the interface message, followed by the ‘config’ command to get to user exec mode.
10. Windowing is the means by which the size of TCP segments is changed, and typically done dynamically. This is often referred to as source quenching or a sliding window.
Which of the following layers of the 7-layer OSI model is responsible for guaranteeing that data reaches its destination?
The Presentation layer has the responsible of ensuring that data arrives undamaged by determining the type of compression that will be used.
The Application layer is responsible for guaranteed delivery.
The Session layer ensures that that data arrives at its destination by controlling the session.
Transport layer has the responsible of ensuring that data arrives at its destination.

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