Computer Firewall Interview Preparation Guide
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Firewall guideline for job interview preparation. Explore list of Computer Firewall frequently asked questions(FAQs) asked in number of Firewall interviews. Post your comments as your suggestions, questions and answers on any Computer Firewall Interview Question or answer. Ask Computer Firewall Question, your question will be answered by our fellow friends.

45 Firewall Questions and Answers:

1 :: What is Log Processing?

How audit logs are processed, searched for key events, or summarized.
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2 :: What is IP Spoofing?

An attack whereby a system attempts to illicitly impersonate another system by using its IP network address.

In computer networking, the term IP address spoofing or IP spoofing refers to the creation of Internet Protocol (IP) packets with a forged source IP address, called spoofing, with the purpose of concealing the identity of the sender or impersonating another computing system
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3 :: What is Defense in Depth?

The security approach whereby each system on the network is secured to the greatest possible degree. May be used in conjunction with firewalls.
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4 :: What is uthentication?

The process of determining the identity of a user that is attempting to access a system.

authentication is a process that can verify pc identity(user name and pass etc).
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5 :: What is Least Privilege?

Designing operational aspects of a system to operate with a minimum amount of system privilege. This reduces the authorization level at which various actions are performed and decreases the chance that a process or user with high privileges may be caused to perform unauthorized activity resulting in a security breach.
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6 :: What is Cryptographic Checksum?

A one-way function applied to a file to produce a unique ``fingerprint'' of the file for later reference. Checksum systems are a primary means of detecting filesystem tampering on Unix.
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7 :: Explain You are currently designing your own Desktop Publishing application, as you have not found any that?

You are currently designing your own Desktop Publishing application, as you have not found any that do exactly what you want with existing applications. As part of the design you are using a Controller to which you send all GUI requests. Not all objects can process the same commands. For example you can?t select the spell check tool when an image has the focus. To stop any possible errors you would like to filter out some of the messages as they are passed from these objects to
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8 :: What is DNS spoofing?

Assuming the DNS name of another system by either corrupting the name service cache of a victim system, or by compromising a domain name server for a valid domain.
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9 :: What is Bastion Host?

A system that has been hardened to resist attack, and which is installed on a network in such a way that it is expected to potentially come under attack. Bastion hosts are often components of firewalls, or may be ``outside'' web servers or public access systems. Generally, a bastion host is running some form of general purpose operating system (e.g., Unix, VMS, NT, etc.) rather than a ROM-based or firmware operating system.
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10 :: What is Log Retention?

How long audit logs are retained and maintained.
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