Cisco Network Engineer Mock Interview
Master 30 Cisco Network Engineer interview questions covering routing protocols, network security, and troubleshooting scenarios.
Question 12 of 30
What is the function of a Firewall in a network environment?
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William Swansen has worked in the employment assistance realm since 2007. He is an author, job search strategist, and career advisor who helps individuals worldwide and in various professions to find their ideal careers.
A firewall is a standard piece of technology that is present in virtually every corporate network. As a networking engineer, you should be thoroughly familiar with this technology and describe its use. In addition, based on your research before the interview, you may know the type of firewalls Cisco uses and provide an answer related to these.
William Swansen has worked in the employment assistance realm since 2007. He is an author, job search strategist, and career advisor who helps individuals worldwide and in various professions to find their ideal careers.
"A Firewall is a network security system that protects computer networks from malicious or unauthorized access. It can also be configured to allow limited access to specific users. A firewall consists of a hardware device or software program or a combination of these. All the data that encounters the firewall are scanned against specified security criteria. Data packets meeting the criteria are allowed through the network, and those that don't meet the criteria are blocked. Firewalls can be configured and updated as Cisco's needs evolve and help to provide control over the network's access and security features."
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