Answer / toni

A Firewall is usually a networking device that protects
networks by blocking unwanted traffic, and monitoring and
controlling useful, desirable traffic. The Firewall
functions as a filter as traffic moves from one network to
another. It blocks or allows specific protocols and data
types, and inspects permitted traffic flow for networking
protocol compliance as well as adherence to a business's
information systems usage policy. This ensures that network
traffic acts in its intended function.

Routers and switches run Cisco IOS, and the IOS Firewall is
a feature that can be configured on them by software. This
feature allows routers and switches to work on a stateful
firewall basis.

Answer / sandeep.p

to help secure various network environments.
Cisco offers several integrated network firewall solutions

ASA 5500 Series: Controls network access at the WAN edge or
within the LAN
Cisco IOS Firewall: Helps control application traffic
Firewall Services Module (FWSM) for Catalyst 6500 Series

Switches and 7600 Series Routers: Allows a port to act as a
firewall and protect traffic within the LAN or at the
network perimeter

Embedded Firewall Services in the ASR 1000 Series Routers:
Adds firewall functions at the network perimeter to protect
network services
Web Application Firewall: Helps XML-based application
traffic securely reach its destination

How do you display a routing table on a Cisco? On a host?

9 Answers  

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3 purposes of ICMP : a. router discovery b. gurantee of transport c. estimate of bandwidth d. error messaging e. diagnostics/testing f. gurantee of uniqueness of node addresses

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The following are the steps toward encapsulation. Put them in order: 1. User input 2. data 3. frame 4. segment 5. datagram 6. bits a. 1-4-2-5-3-6 b. 1-5-4-2-3-6 c. 1-2-3-5-4-6 d. 1-2-4-5-3-6

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Which layer does "timing" ? a. Physical b. MAC sublayer c. LLC sublayer d. Network Layer e. transport layer

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Hi Plze tell me what is scope of linux administrator in future and what is basic salary of linux for frasher I have two year experince of hardware & networking engineer

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Why application layer is given serial no 7 though it function starts from serial no 1 from

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Suppose a Router contain one First Ethernet port(F0/0) and two serial port(i.e S1/0,S1/1) and we want to assign IP address of Class A to all the ports. Let the IP address for F0/0 is 10.1.1.2 and 10.2.1.4 for S1/0 and 10.4.1.6 for S1/1, is it correct ? after that can we configure the router using the routring Protocol 'IGRP ' ?

4 Answers   HCL,

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udp means

9 Answers   CSC, CTS,

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what is dhcp server?

3 Answers   DELL,

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The last octet of the broadcast address of a Class B network is :

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Tell me what happens when you use cables longer than the prescribed length?

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First 4 bits of Class E IP address = ? a. 0001 b. 1100 c. 1110 d. 1111

1 Answers  

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