Alcatel-lucent Scalable IP Networks Exam A

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1. 1. The original network that ultimately became the Internet was called ______.  

Explanation

NSFNET was the follow-on network, DARPA is an organization, and DoDnet
does not exist.

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About This Quiz
Alcatel-lucent Scalable IP Networks Exam A - Quiz

Preparing for the Network Routing Specialist I (NRS I)
Certification Exam (4A0-100)

2. 2. The primary organization behind the development of the original Internet was ______.  

Explanation

All of the other answers are incorrect.

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3. What command would you use to enable an interface the first time you initialized an Alcatel-Lucent 7750 SR/7450 ESS?        

Explanation

By default, all the ports and cards on an Alcatel-Lucent 7750 SR/7450 ESS are
down and need to have the no shutdown command used to enable them.

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4.  Which of the following commands is not correctly described?        

Explanation

The exit all command takes you to the root context but does not log you out.

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5.  Which of the following is the correct provisioning order you should follow when configuring an Alcatel-Lucent 7750 SR/7450 ESS for the first time?        

Explanation

This is the correct provisioning order.

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6.  What are the two main types of Ethernet frames?        

Explanation

These are the two main types of Ethernet frames. The other answers are incorrect.

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7. 7. ISPs connect to each other at well-defined network locations to exchange information. These connection points are known as ______.  

Explanation

The other answers don’t address the question.

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8. 9. Which of the following services would likely be offered by a content provider but not a service provider?  

Explanation

Live streaming video for sports events would clearly fall into the content scope of
services. The other services are all commonly offered by all service providers.

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9. 12. When an HTTP packet needs to be forwarded over the Internet, which of the following accurately describes the order of the headers as they would be placed in front of each other in the packet (assume that the originating device is on an Ethernet network)?    

Explanation

The headers are placed in front of each other in order of the protocol stack from
the highest layer down, so the order would be application, Layer 4 (TCP), Layer 3
(IP), and then Layer 2 (Ethernet).

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10.  When an Ethernet station wants to transmit information, the process it follows is ______.        

Explanation

This is a brief description of the “carrier sense multiple access” part of the CSMA/
CD protocol.

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11. 10. Which of the following accurately describes the TCP protocol?

Explanation

“Connection-oriented with guarantee of delivery” describes the basic functions of
using TCP. The other answers are incorrect.

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12.  Which of the following descriptions of hardware for the Alcatel-Lucent 7750 SR/7450 ESS is correct?        

Explanation

An IOM card supports two MDAs that provide the physical ports for a chassis.

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13.  What file contains the system bootstrap image?        

Explanation

This is the file that contains the bootstrap image, and it is the first file that is read
upon system startup.

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14.  Which of the following values is not stored in the bof.cfg?        

Explanation

This value is not stored in the bof.cfg.

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15.  Which of the following is not a data link layer (OSI Layer 2) protocol?          

Explanation

There is no protocol called Cell-Relay; the other answers are all Data Link
protocols.

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16.  Which of the following is not a product in the Alcatel-Lucent 7750 SR/7450 ESS family?        

Explanation

This is not a product in the SR line; the SR line contains SR-12, SR-7, and SR-1.

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17. 14. What happens when two or more Ethernet stations attempt to transmit at the same time?              

Explanation

This is a brief description of how Ethernet stations retransmit after collision. They
wait a random amount of time to try to ensure that the same stations don’t transmit
at the same time again.

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18. 5. Which of the following OSI layers is not paired with the correct implementation?    

Explanation

TCP is a Layer 4 protocol. The other answers are incorrect.

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19. 6. Part of the growth of the ARPANET was driven by the ability of anyone to create and disseminate information about potential protocols and applications in a particular kind of document. These documents are known as ______.  

Explanation

The other answers are incorrect.

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20. 8. A company that has locations throughout the country can obtain service at each location from a Tier 1, Tier 2, or Tier 3 provider. What is one reason a company might choose to connect all locations to a Tier 1 provider despite the higher costs involved?  

Explanation

A single provider can offer SLAs because the traffic would be contained entirely
within its own network;

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21.  What command would you use to display the configuration of your Alcatel-Lucent 7750 SR/7450 ESS?        

Explanation

This is used to show the configuration of your Alcatel-Lucent device.

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22.  Which of the following technologies ensures that a unicast packet is visible only to the device with the specific destination address?        

Explanation

An Ethernet switch will forward the frame to the correct port based on a destination
address in its FDB; all the other technologies broadcast all frames to all
devices.

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23.  Which of the following is not a log stream type?        

Explanation

This is not a valid log stream type.

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24.  The SF/CPM card has its own Ethernet interface for out-of-band management. This interface has its own IP address and default route. Where is this information stored?          

Explanation

The bof.cfg stores the boot file configuration parameters such as the Ethernet
management IP, the location of the config file, and the system image file.

Submit
25. 15. Most of the OSI-created protocols are no longer in use, although a few still provide some critically important functions. Which of the following describes an OSI protocol that is still in use?  

Explanation

IS-IS is a routing protocol developed by the ISO that is still in use in many provider
networks. The other answers are either not ISO protocols or are no longer in use.

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26.  During the boot process, an Alcatel-Lucent 7750 SR/7450 ESS checks to see if persistence is enabled. What is the purpose of persistence?        

Explanation

The persistence option is only needed if the 5620 SAM is used to manage your
Alcatel-Lucent device.

Submit
27. The original Thicknet standard had a maximum cable length as well as a minimum distance for stations to tap into the cable. Based on the description of CSMA/CD, what is the most likely reason for these distance requirements?            

Explanation

Based on our description of CSMA/CD, it is implied that each station needs to be
able to determine when other stations are transmitting, which means that each
station needs to be within a certain distance of other stations so

Submit
28. 3. Which of the following was not a primary design concern during the development of the original Internet?  

Explanation

The network needed to support diverse systems in a reliable manner over diverse
media. There was not a great need for large amounts of bandwidth.

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29. Which of the following statements is false regarding the Alcatel-Lucent 7450 ESS series?        

Explanation

The Alcatel-Lucent 7450 ESS is designed primarily as an Ethernet aggregation
point and so it does not support provider protocols like BGP.

Submit
30.  Which of the following descriptions is correct?        

Explanation

This is the only correct pairing.

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31.  Which of the following correctly lists the order in which files are read by the Alcatel-Lucent 7750 SR/7450 ESS upon bootup?        

Explanation

This is the correct order.

Submit
32. What is the purpose of the ATM Adaptation Layer?        

Explanation

ATM supports many classes of service, but data from upper-layer protocols must be
mapped to the 53-byte ATM cells For example, IP datagrams are encapsulated in
an AAL5 frame, which is then encapsulated in individual ATM cells.

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33. An Ethernet MAC address consists of ______.          

Explanation

The two parts are the vendor OUI and the vendor-chosen hardware address.

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34.  Which of the following is not a function of PPP?     .  

Explanation

There is an address field, but it is not used as there is no need for addressing on a
point-to-point link.

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35.  Which of the following is false regarding the logging mechanisms in the Alcatel- Lucent 7750 SR/7450 ESS?        

Explanation

Configuration of a filter for a log-id is optional.

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36.  Which of the following values for the Ethertype/length fields indicates an 802.3 frame (numbers are in decimal)?        

Explanation

A value less than 1536 indicates an 802.3 frame.

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37.  Which of the following Ethernet standards is not matched correctly?        

Explanation

Gigabit Ethernet can run over copper cabling as well.

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38.  A PPP frame has several fields that are not used, like addressing. Why do these fields exist in the frame?        

Explanation

The HDLC protocol used the fields that PPP does not, and the fields are a legacy
of this.

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39.  ATM uses 53-byte cells, which is quite a bit smaller than the maximum Ethernet frame. What is the purpose of having such a small cell size?        

Explanation

This is the primary factor behind the small size of the cells. The other answers
don’t address the core reason for the size of the cells.

Submit
40. 4. Which of the following was not a reason TCP was a superior transport protocol to NCP?  

Explanation

NCP provided support for applications like email; it did not provide any of the
features in the other answers.

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41. 14. What would a router processing the packet described in Question 12 do with the Layer 2 header of the incoming packet?  

Explanation

Answer B is incorrect because the next-hop interface might be a different layer
technology so the router cannot simply replace addresses; it must create a new
Layer 2 header. The other answers don’t describe the forwarding process correctly.

Submit
42. Which of the following ATM AAL types is associated with an incorrect description?        

Explanation

AAL1 is constant bit rate traffic.

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43. 13. A router processing the packet described in Question 12 would need to examine and/or manipulate which headers?  

Explanation

A router would remove the Ethernet (Layer 2) header, examine the IP (Layer 3)
address to determine how to forward the packet, and then replace the Layer 2
header for the appropriate next-hop interface.

Submit
44. 11. O riginally the IP protocol functions were performed by ______.  

Explanation

Originally the functions of both TCP and IP were in a single TCP protocol.

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45. The advantage of using multicast packets instead of broadcast packets is:          

Explanation

Depending on the switch technology in use, multicast packets might also be
received by every host, but every host would not process the multicast packets if
they are not in the multicast group. Every device must strip the Ethernet header
and examine the contents of the upper layers of a broadcast to determine if the
packet is intended for it or not. This is a major disadvantage for broadcast traffic.

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1. The original network that ultimately became the Internet was called...
2. The primary organization behind the development of the original...
What command would you use to enable an interface the first time you...
 Which of the following commands is not correctly described? ...
 Which of the following is the correct provisioning order you...
 What are the two main types of Ethernet frames? ...
7. ISPs connect to each other at well-defined network locations to...
9. Which of the following services would likely be offered by a...
12. When an HTTP packet needs to be forwarded over the Internet, which...
 When an Ethernet station wants to transmit information, the...
10. Which of the following accurately describes the TCP protocol?
 Which of the following descriptions of hardware for the...
 What file contains the system bootstrap image? ...
 Which of the following values is not stored in the bof.cfg? ...
 Which of the following is not a data link layer (OSI Layer 2)...
 Which of the following is not a product in the Alcatel-Lucent...
14. What happens when two or more Ethernet stations attempt to...
5. Which of the following OSI layers is not paired with the correct...
6. Part of the growth of the ARPANET was driven by the ability of...
8. A company that has locations throughout the country can obtain...
 What command would you use to display the configuration of your...
 Which of the following technologies ensures that a unicast...
 Which of the following is not a log stream type? ...
 The SF/CPM card has its own Ethernet interface for out-of-band...
15. Most of the OSI-created protocols are no longer in use, although a...
 During the boot process, an Alcatel-Lucent 7750 SR/7450 ESS...
The original Thicknet standard had a maximum cable length as well as a...
3. Which of the following was not a primary design concern during the...
Which of the following statements is false regarding the...
 Which of the following descriptions is correct? ...
 Which of the following correctly lists the order in which files...
What is the purpose of the ATM Adaptation Layer? ...
An Ethernet MAC address consists of ______. ...
 Which of the following is not a function of PPP? ...
 Which of the following is false regarding the logging mechanisms...
 Which of the following values for the Ethertype/length fields...
 Which of the following Ethernet standards is not matched...
 A PPP frame has several fields that are not used, like...
 ATM uses 53-byte cells, which is quite a bit smaller than the...
4. Which of the following was not a reason TCP was a superior...
14. What would a router processing the packet described in Question 12...
Which of the following ATM AAL types is associated with an incorrect ...
13. A router processing the packet described in Question 12 would need...
11. O riginally the IP protocol functions were performed by ______....
The advantage of using multicast packets instead of broadcast packets...
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