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  1. What is a firewall? - Cisco

    A firewall is a network security device that separates a trusted internal network from an external network deemed untrustworthy, such as the internet. It regulates incoming and outgoing network traffic based …

  2. What Is Network Segmentation? - Cisco

    Some traditional technologies for segmentation included internal firewalls, and Access Control List (ACL) and Virtual Local Area Network (VLAN) configurations on networking equipment.

  3. What is a network gateway? - Cisco

    As an entry or exit point for data, a gateway can be used in a variety of security processes, such as a firewall to scan and filter data or a proxy server to maintain restricted access to certain applications …

  4. What is a Router? - Definition and Uses - Cisco

    Embedded firewall and content filtering software provide an additional protection from unwanted content and malicious websites without affecting your online experience.

  5. What Is Network Switching? - Cisco

    Networking experts need to configure managed switches, which are designed for use in large, complex networks that demand reliability and security. These switches offer more capacity than unmanaged …

  6. What is network security? - Cisco

    A firewall is a network security device that monitors incoming and outgoing network traffic and decides whether to allow or block specific traffic based on a defined set of security rules.

  7. What is an Access Point? - Cisco

    They enhance network performance by distributing the workload among multiple access points, reducing congestion and ensuring a stable connection. They also offer advanced security features, such as …

  8. What is a Network? A network refers to two or more connected computers that can share resources such as data, a printer, an Internet connection, applications, or a combination of these resources.

  9. Networking Basics: What You Need To Know - Cisco

    Depending on your security needs, for example, you can choose a router with a firewall, a virtual private network (VPN), or an Internet Protocol (IP) communications system.

  10. What Is Network Address Translation (NAT)? - Cisco

    Network Address Translation (NAT) is a service that operates on a router or edge platform to connect private networks to public networks like the internet. NAT is often implemented at the WAN edge …