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Need to know

Managing Cisco IOS Image Files

Describe the process of locating the Cisco IOS image. Explain an IOS image filename. Sequence the steps to upgrade Cisco IOS images.

Configuring Single Area OSPF

After completing this topic, you should be able to configure a single-area OSPF network in Cisco environment.

Dynamic Trunking Protocol (DTP) Configuration

After completing this topic, you should be able to recognize the characteristics of Dynamic Trunking Protocol (DTP).

Discovering Neighbors on the Network

This lesson introduces the Cisco discovery protocol, or CDP. Describe the features and functions of Cisco discovery protocol. Learn how to configure it.

Understanding Ethernet

Identify the components and functions of the local area network. Ethernet frame, types of Ethernet frame addressing, role of the Ethernet address, MAC address.

Exploring the Packet Delivery Process

How packets go through devices at layers 1, 2, and 3. Mapping between layer 2 and 3 addresses by using ARP. Common tools to determine the path across the network.

Latest security threats

Wed, 18 Apr 2018 16:00:00 PDT

Cisco Firepower Detection Engine Secure Sockets Layer Denial of Service Vulnerability

Fri, 18 Oct 2019 18:18:39 PDT

Cisco Adaptive Security Appliance Software and Firepower Threat Defense Software FTP Inspection Denial of Service Vulnerability

Fri, 18 Oct 2019 18:18:13 PDT

Cisco Adaptive Security Appliance Software and Firepower Threat Defense Software OSPF LSA Processing Denial of Service Vulnerability

Fri, 18 Oct 2019 16:08:02 PDT

Cisco REST API Container for IOS XE Software Authentication Bypass Vulnerability

Thu, 17 Oct 2019 17:16:22 PDT

Cisco Firepower Management Center Remote Code Execution Vulnerability

Wed, 16 Oct 2019 17:21:26 PDT

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