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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

Other Networking Security Interview Questions
  Question Asked @ Answers
What is phishing?   4
How to make a system in Network secure?   3
What is Secure Sockets Layer (SSL)?   3
what purpose we are using the ARP ? what purposes we are using ip config?   7
Why LDAP is called light weight? Symantec 8
What are the possible means of Internet attacks?   2
What is a wild card certificate ? can I use it for all my appliance in the network ? HCL 2
My System Loaded Cyber Crome ,Whom i can't Access proper Internet , so plz give me some idea .whom i will can access proper internet .my e mail id   1
What defensive mechanisms for viruses can be encountered?   1
How do you Trace a person with IP Address? How do you detect a person using Fake IP (Proxy IP)?   4
What is the purpose of a firewall?   4
What protects and describes the Chinese Wall model?   1
For more Networking Security Interview Questions Click Here 

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