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Categories >> Software >> Networking >> Networking Security


 Networking Protocols interview questions  Networking Protocols Interview Questions (284)
 Networking Administration interview questions  Networking Administration Interview Questions (352)
 Networking Security interview questions  Networking Security Interview Questions (68)
 Networking AllOther interview questions  Networking AllOther Interview Questions (282)
What is the purpose of a firewall?
 Question Submitted By :: Networking-Security
I also faced this Question!!     Answer Posted By  
# 1
Firewalls are used to mediate and control all information
that is communicated between an external (untrusted) network
and an
internal (trusted) network. Firewalls make use of IP
filtering and application proxies to implement firewall
security policies.
Is This Answer Correct ?    17 Yes 1 No
# 2
Firewall is basically used to prevent the network from
unauthorised access.
Firewall are basically 2 types
1) Hardware Firewall:-Its works on network layer and used
for packet filtering usually used for network security. Its
only allow/deny packets(ports).
eg- Cisco pix, checkpoint,juniper,netgear are vendors of
H/W firewall
2) Software Firewall:- Its work at application level.It is
signature based firewall it does not bloks malicious
packets. Its only blocks predefined malicious signature.
eg- Antivirus like Mcafee, Symantech, Quick Heal
Is This Answer Correct ?    11 Yes 0 No
# 3
The foremost purpose of Firewall is to prevent the
unauthenticated access of several resources of your network
as well as protection from ID-Theft scams such as spoofing
and phishing
Is This Answer Correct ?    8 Yes 3 No
# 4
firewall is protected the system in the threads. 
Is This Answer Correct ?    3 Yes 6 No

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What are the vulnerabilities according to the extended CERT Taxonomy?   1
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A System programmer have access to computer room, it is possible that he may undertake some unauthorised activities at any time, due to his deep knowledge how can a control build to avoid the risk? Wipro 3
Why LDAP is called light weight? Symantec 8
What is the principle of least privilege?   1
What is Firewall? I saw in one website Firewall is software and hardware and combination of software and hardware.It is used to protect user information or avoiding it is?Whether it is hardware?If not then why the images are like that?(a wall ).Please help me by answering this question.Advance thanks. Excel 4
What is dss? HCL 3
What is a security mechanism?   1
Name firewall architectures?   4
For more Networking Security Interview Questions Click Here 

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