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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.
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Access Control Lists Wildcard Masking and Abbreviation

After completing this topic, you should be able to determine the wildcard mask for a range of IP subnets and when to use abbreviation.
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OSPF LSA Types

After completing this topic, you should be able to match LSA types used in OSPF designs with their descriptions.
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Understanding WAN Technologies

This lesson is all about wide-area network fundamentals.
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Starting a Router

The Cisco router startup sequence is similar to that of a Catalyst switch. You can use the setup utility to provide an initial configuration and then go into privileged mode and start configuring it.
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Constructing an IP Network Addressing Scheme

Subnetting as a key function on any IP network that does not want to remain flat. The concept of subnets and the design guidelines of subnets.
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Latest security threats

2021-09-22 23:00:00.0

Cisco Aironet Access Points WLAN Control Protocol Packet Buffer Leak Denial of Service Vulnerability

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2021-09-22 23:00:00.0

Cisco SD-WAN Software Command Injection Vulnerability

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2021-09-22 23:00:00.0

Cisco SD-WAN vManage Software Cypher Query Language Injection Vulnerability

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2021-09-22 23:00:00.0

Cisco SD-WAN vManage Software Disaster Recovery Feature Password Exposure Vulnerability

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2021-09-22 23:00:00.0

Cisco SD-WAN Software Information Disclosure Vulnerability

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2021-09-22 23:00:00.0

Multiple Cisco Operating Systems Unidirectional Link Detection Denial of Service Vulnerability

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