Cisco CCNA 200-301 – WAN – Wide Area Networks Part 2

4. WAN Connectivity Options In this lecture you’ll learn about the different Wan connectivity options and there’s multiple wide area network options available. Not all options are going to be available in all locations. It really depends what region, what country you’re in. What is commonly used in one region may be considered legacy in… Read More »

Cisco CCNA 200-301 – WAN – Wide Area Networks

1. Introduction Section, you’ll learn about wide area networks. I remember when I was first learning networking, that how Wan technologies worked in the real world was quite hard to get a handle on. It was hard to learn it from the books. We didn’t have videos back then because my Wan connection was a… Read More »

Cisco CCNA 200-301 – The Security Threat Landscape Part 5

9. Remote Access VPN Virtual Private Networks In this lecture you’ll learn about client to site remote access VPNs with the Cisco Any Connect client. So the Cisco Any Connect client is a remote access VPN application which uses the ASA firewall. You saw in the last lecture when we configured the site to site… Read More »

Cisco CCNA 200-301 – The Security Threat Landscape Part 4

7. TLS Transport Layer Security You’ll learn about firewalls IDs, intrusion detection systems and IPS intrusion prevention systems. So I’ll tell you about the characteristics of each, the differences between them, and how they best work together to provide security for an organization. So starting off with the IDs and the IPS, IDs Transfer Intrusion… Read More »

Cisco CCNA 200-301 – The Security Threat Landscape Part 3

5. Firewalls vs Packet Filters You’ll learn how firewalls work and I’ll also compare them with packet filters. But your access control lists. So firewalls secure traffic passing through them by either permitting or denying it according to their rules stateful firewalls maintain a connection table which tracks the two way state of traffic passing… Read More »

Cisco CCNA 200-301 – The Security Threat Landscape Part 2

3. Common Attacks You’ll learn about the common attacks that hackers use in their attempts to compromise your systems. You learned in the last lecture that if it is a targeted attack, then the hacker will typically start off with doing reconnaissance of your organization. So we’ll start there reconnaissance, obtains information about the intended… Read More »

Cisco CCNA 200-301 – The Security Threat Landscape

1. Introduction In this section, you’ll learn about the It security threat landscape. I’ll start off by giving you the definitions that apply to general security. And then I’ll talk about the methodology that hackers follow when they are attacking you. I’ll tell you about the different devices that are available to provide protection, such… Read More »

Cisco CCNA 200-301 – QoS Quality of Service Part 4

5. Policing and Shaping In this lecture you’ll learn about traffic shaping and policing. When people talk about QoS in general, they’re probably talking about queuing, but there are other QoS mechanisms available like shaping and policing which are also commonly used. Traffic shaping and policing can be used to control traffic rate. Both measure… Read More »

Cisco CCNA 200-301 – QoS Quality of Service Part 3

4. Congestion Management In this lecture, you’ll learn about congestion management and how to configure queuing on your Cisco devices. When we talk about congestion management, we are talking about queuing. So there’s some congestion on the router or the switch, there’s more traffic coming in, then it’s able to send out. So it has… Read More »

Cisco CCNA 200-301 – QoS Quality of Service Part 2

3. Classification and Marking You’ll learn about classification and marking, which is part of your QoS configuration for a router or switch to give a particular level of service to a type of traffic, obviously it has to recognize that traffic first. Common ways to recognize the traffic are by Cost, which is class of… Read More »