CCNA4 MODULE 7

Posted by WebDeveloper on Friday, January 2, 2009,
From: http://ccna-4.blogspot.com

1. Why is it important to record baseline measurements of a prototype network?

Test results show security weaknesses after the baseline tests are run.

The baseline is the point at which the network is operating at its fullest potential.

Baseline measurements define a point at which network traffic has exceeded the designed capabilities of the network.

Test results are compared to the baseline to see how the test conditions increase processor use or decrease availab...
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CCNA4 MODULE 6

Posted by WebDeveloper on Friday, January 2, 2009,

From: http://ccna-4.blogspot.com

1. Which two statements about DSL are true? (Choose two.)

users are on a shared medium

uses RF signal transmission

local loop can be up to 3.5 miles (5.5km)

physical and data link layers are defined by DOCSIS

user connections are aggregated at a DSLAM located at the CO

2. Which two Layer 1 requirements are outlined in the Data-over-Cable Serv...


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CCNA4 MODULE 5

Posted by WebDeveloper on Friday, January 2, 2009,

From: http://ccna-4.blogspot.com

1. By default, how is IP traffic filtered in a Cisco router?


blocked in and out of all interfaces


blocked on all inbound interfaces, but permitted on all outbound interfaces


permitted in and out of all interfaces


blocked on all outbound interfaces, but permitted on all inbound interfaces


2. Which three parameters can ACLs use to filter traffic? (Choose three.)


packet size


protocol suite


source address


destination address


source router interface


desti...


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CCNA4 MODULE 4

Posted by WebDeveloper on Friday, January 2, 2009,

From: http://ccna-4.blogspot.com

1. Which two statements are true regarding network security? (Choose two.)


Securing a network against internal threats is a lower priority because company employees represent a low security risk.


Both experienced hackers who are capable of writing their own exploit code and inexperienced individuals who download exploits from the Internet pose a serious threat to network security.


Assuming a company locates its web server outside the firewall and has adequate ...


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CCNA4 MODULE3

Posted by WebDeveloper on Friday, January 2, 2009,

from: http://ccna-4.blogspot.com

1. Which best describes the benefit of using Frame Relay as opposed to a leased line or ISDN service?

Customers can define their virtual circuit needs in far greater combinations, with increments as small as 64 kbps.


Customers pay for an end-to-end connection that includes the local loop and the network link.


Customers only pay for the local loop and the bandwidth they purchase from the network...


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CCNA4 MODULE2

Posted by WebDeveloper on Friday, January 2, 2009,
From: http://ccna-4.blogspot.com

1. Which two statements are true about time-division multiplexing (TDM)? (Choose two.)

TDM relies on Layer 3 protocols to operate.
**Multiple sources can transmit over a single channel.
**Original data streams must be reconstructed at the destination.
TDM methods vary depending on the Layer 2 protocol that is used.
It allows information from multiple channels to be allocated bandwidth on multiple wires.

2. What does the demarcation point represent in data communicati...
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CCNA4 MODULE 1

Posted by WebDeveloper on Friday, January 2, 2009,
From: http://ccna-4.blogspot.com

1. At which two layers of the OSI model does a WAN operate? (Choose two.)

**Physical Layer
**Data Link Layer
Network Layer
Transport Layer
Presentation Layer
Application Layer

2. Why is the call setup time of a circuit-switched WAN implementation considered a drawback?

Routing protocols are incompatible with this function.
It restricts the communication sent to voice traffic only.
A telephone must be used to initially start transferring data.
**Data cannot be transferred ...
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CCNA Exploration 4 V4.0

Posted by WebDeveloper on Monday, December 29, 2008,

Here is a collection of allmodule exam for ccna3 version 4
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