Ccna 3 capitulo 1

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  • Publicado : 31 de diciembre de 2010
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1.- Which layer of the hierarchical network design model is refered to as the high-speed backbone of the internetwork, where high availability and redundancy are critical?
access layer
core layer
data-link layer
distribution layer
network layer
physical layer
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  | Observable | Description | Max Value | Earned Value |
1 | correctness of response | 2 points for Option 2
0points for any other option | 2 | 2 |
|

2.- Which layer of the hierarchical design model provides a means of connecting devices to the network and controlling which devices are allowed to communicate on the network?
application
Access
distribution
network
core
|

  | Observable | Description | Max Value | Earned Value |
1 | correctness of response | 2 points for Option 2
0points for any other option | 2 | 2 |
|

3.- Which hierarchical design model layer controls the flow of network traffic using policies and delineates broadcast domains by performing routing functions between virtual LANs (VLANs)?
application
Access
distribution
network
core
  | Observable | Description | Max Value | Earned Value |
1 | correctness of response | 2 points forOption 3
0 points for any other option | 2 | 2 |
|
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4.- What is the likely impact of moving a conventional company architecture to a completely converged network?
Local analog phone service can be completely outsourced to cost-effective providers.
The Ethernet VLAN structure is less complex.
A shared infrastructure is created resulting in a single network to manage.
QoS issuesare greatly reduced.
There is less bandwidth competition between voice and video streams.
|
  | Observable | Description | Max Value | Earned Value |
1 | correctness of response | 2 points for Option 3
0 points for any other option | 2 | 2 |
|
|

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5.- Link aggregation should be implemented at which layer of the hierarchical network?
core only
distribution and coreaccess and distribution
access, distribution, and core
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  | Observable | Description | Max Value | Earned Value |
1 | correctness of response | 2 points for Option 4
0 points for any other option | 2 | 2 |
|
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6.- What statement best describes a modular switch?
a slim-line chassis
allows interconnection of switches on redundant backplane
defined physical characteristicsflexible characteristics
  | Observable | Description | Max Value | Earned Value |
1 | correctness of response | 2 points for Option 4
0 points for any other option | 2 | 2 |
|
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7.- Which feature supports higher throughput in switched networks by combining multiple switch ports?
convergence
redundant links
link aggregation
network diameter
|
  | Observable |Description | Max Value | Earned Value |
1 | correctness of response | 2 points for Option 3
0 points for any other option | 2 | 2 |
|
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8.- Configuring communication between devices on different VLANs requires the use of which layer of the OSI model?
Layer 1
Layer 3
Layer 4
Layer 5
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  | Observable | Description | Max Value | Earned Value |
1 | correctness ofresponse | 2 points for Option 2
0 points for any other option | 2 | 2 |
|

9.- Which two characteristics are associated with enterprise level switches? (Choose two.)
low port density
high forwarding rate
high latency level
support link aggregation
predefined number of ports
|
  | Observable | Description | Max Value | Earned Value |
1 | correctness of response | Option 2 andOption 4 are correct.
1 point for each correct option.
0 points if more options are selected than required. | 2 | 2 |
|
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10.- Which two features are supported at all three levels of the Cisco three-layer hierarchical model? (Choose two.)
Power over Ethernet
load balancing across redundant trunk links
redundant components
Quality of Service
link aggregation
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  |...
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