CCNA3 Chap1 practice testanswers by 7quuZVN2

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									CCNA3 Chapter 1 Practice Test Answers
At which layer of the hierarchical network design would you find switches that
use access control lists to implement security?

          Core
          Distribution
          Access
          All 3 layers

At which layer of the hierarchical network design would you find switches that
use port-based security to control which devices connect to the network?

          Core
          Distribution
          Access
          All 3 layers

At which layer of the hierarchical network design would you find switches that
do not implement security measures, but switch packets as fast as possible?

          Core
          Distribution
          Access
          All 3 layers

At which layer of the hierarchical network design would it be useful to have
switches that implement PoE?

          Core
          Distribution
          Access
          All 3 layers

At which layer of the hierarchical network design would it be useful to have
switches that implement QoS?

          Core
          Distribution
          Access
          All 3 layers




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At which layer of the hierarchical network design is it least important to have a
switch whose forwarding rate equals the combined wire speed of all the ports?

          Core
          Distribution
          Access
          All 3 layers

At which layer of the hierarchical network design would it be useful to have
switches that implement link aggregation?

          Core
          Distribution
          Access
          All 3 layers

At which layer of the hierarchical network design are you least likely to find
redundancy?

          Core
          Distribution
          Access
          All 3 layers

At which layer of the hierarchical network design would a server in a data
centre connect to the network?

          Core
          Distribution
          Access

At which layer of the hierarchical network design are you most likely to find
switches that do not have OSI layer 3 features?

          Core
          Distribution
          Access


What is the reason for not having redundancy at every layer?

          Efficiency
          Availability
          Scalability
          Cost


What is link aggregation?



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          Load balancing across different routes that have the same number of
           hops
          Two or more links acting as a single virtual link with the combined
           bandwidth
          Sending alternate packets on different links
          Using a single physical interface with subinterfaces to connect to
           different devices

What is another name for the core layer of the network?

          Vertical cabling
          Horizontal cabling
          High-speed backbone
          WAN link

Which of these processes is an OSI layer 3 process carried out by distribution
layer switches?

          Routing between VLANs
          Switching using MAC addresses
          Link aggregation
          Provision of PoE

Which feature of network switches is particularly important in a converged
network?

          Port security
          Quality of service
          Link aggregation
          Modularity

How might a company save money by having a converged network in their
new premises rather than having separate data, phone and video networks?

          Networking devices designed for converged networks are cheaper
          They need only one set of network cables installed instead of
           three
          They can re-use all their old PCs, phones and videoconferencing
           equipment
          Management is easier, so they can employ staff with fewer
           qualifications

Which type of switch has a chassis into which line cards can be installed?

          Stackable switch
          Fixed configuration switch
          Multilayer switch
          Modular switch



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What is a characteristic of a fixed configuration switch?

          You cannot alter the number of ports
          You cannot alter how it is connected to other switches
          It has a fixed size of one rack unit
          It has line cards fixed into its chassis

Which is a desirable characteristic of an access layer switch allocated to a
department where there are a large number of computer users?

          Multilayer capabilities
          High port density
          High latency
          Ability to route between VLANs

What is special about stackable switches?

          They can be fitted easily into a switch cabinet
          They can be connected through special ports and act as a single
           switch
          They have a modular construction so that they can have extra ports if
           required
          They have a strengthened case that is able to take extra weight

The Catalyst Express 500 switch is the cheapest switch in the Catalyst range.
This is a fixed configuration switch with up to 24 10/100 ports and optional
PoE. It offers forwarding rates from 8.8 Gb/s to 24 Gb/s, web-based
management, and converged data/IP communications support. Where would
it best be used?

          For home use to allow 3 PCs to share access to a broadband router.
          The only switch in the network of a small company with 10-15
           employees.
          One of a group of access layer switches providing connectivity for a
           single department within a larger company.
          As a distribution layer switch in a small to medium sized company.

Which features of switches at the core layer promote availability and
reliability? (Choose 2)

          Redundancy
          Hot-swappable hardware components
          Modularity
          PoE




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The network manager analyses the use that the HR department makes of the
network: how many workstations they have, what applications they use, which
servers they use, how much bandwidth they use. What type of analysis is
this?

          Traffic Flow Analysis
          User Communities Analysis
          Data Store and Servers Analysis
          Local Department Analysis




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