Q & A

Cisco Certified Network Associate Security (CCNA Security) is a certification program from Cisco that validates a network professional’s skills in securing Cisco networks. It focuses on areas such as implementing security in routers and switches, using Security Protocols and Firewalls, configuring and troubleshooting network access, and implementing virtual private networks (VPNs). The CCNA Security certification is a prerequisite for higher level security certifications including the Cisco Certified Security Professional (CCSP) and Cisco Certified Network Professional Security (CCNP Security).

Firewall hardware is hardware designed to protect a network from unauthorized access and malicious attacks. Firewall hardware is typically a specialized computer that inspects all incoming and outgoing traffic and allows or denies access based on a set of predetermined rules. Firewall hardware is often deployed at the perimeter of a network and is typically part of a larger security strategy.

Network service is a type of service provided by a network provider to connect two or more computers, devices, or networks together. It includes, but is not limited to, internet access, file sharing, voice over IP, web hosting, and virtual private networks. Network services can be provided by a variety of technologies, such as cable, DSL, fiber optics, wireless, and satellite.

A Virtual Private Network (VPN) is a private network technology that creates a secure connection over a public network, such as the Internet. A VPN encrypts data and routes it through secure tunnels to hide the information from prying eyes. By using a VPN, businesses and individuals can securely access private networks and share data over public networks as if their computing devices were directly connected to the private network.