Archive for the ‘ENSA’ Category

Channel Management | WLAN

Posted: 17th October 2021 by ccna7guru in ENSA
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Frequency Channel Saturation If the demand for a specific wireless channel is too high, the channel may become oversaturated, degrading the quality of the communication. Channel saturation can be mitigated using techniques that use the channels more efficiently. •Direct-Sequence Spread Spectrum (DSSS) – A modulation technique designed to spread a signal over a larger frequency […]

Device Discovery with LLDP

Posted: 10th October 2021 by ccna7guru in ENSA
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LLDP Overview Link Layer Discovery Protocol (LLDP) is a vendor-neutral neighbor discovery protocol similar to CDP. LLDP works with network devices, such as routers, switches, and wireless LAN access points. This protocol advertises its identity and capabilities to other devices and receives the information from a physically-connected Layer 2 device. Configure and Verify LLDP •LLDP […]

Core Components of ACI

Posted: 19th September 2021 by ccna7guru in ENSA
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There are three core components of the ACI architecture: •Application Network Profile (ANP) – An ANP is a collection of end-point groups (EPG), their connections, and the policies that define those connections. •Application Policy Infrastructure Controller (APIC) – APIC is a centralized software controller that manages and operates a scalable ACI clustered fabric. It is designed for […]

Network Virtualization Technologies

Posted: 19th September 2021 by ccna7guru in ENSA
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Two major network architectures have been developed to support network virtualization: •Software-Defined Networking (SDN) – A network architecture that virtualizes the network, offering a new approach to network administration and management that seeks to simplify and streamline the administration process. •Cisco Application Centric Infrastructure (ACI) – A purpose-built hardware solution for integrating cloud computing and data center […]

User Mode [Cisco Router]

Posted: 1st April 2021 by ccna7guru in SRWE, ENSA, ITN

<1-99> connect [ WORD ] disable disconnect <1-16> enable [ <0-15> | view [ WORD ] ] exit logout ping [ ip | ipv6 ] WORD resume [ <1-16> | WORD ] show arp cdp entry * [ protocol | version ] WORD [ protocol | version ] interface Ethernet <0-9>/<0-24>[ . ][ <0-4294967295> ] FastEthernet <0-9>/<0-24>[ . ][ <0-4294967295> […]

Static NAT

Posted: 17th November 2020 by ccna7guru in ENSA

Now that you have learned about NAT and how it works, this topic will discuss the many versions of NAT that are available to you. Static NAT uses a one-to-one mapping of local and global addresses. These mappings are configured by the network administrator and remain constant. In the figure, R2 is configured with static […]

In the Answer Network panel, you construct the answer network, and mark the elements of the network on which you want to assess the students. Click on the Show Answer Network button to view the workspace for the answer network. If you chose to convert the existing workspace to the answer network when you first entered the […]

Enterprise Networking, Security, and Automation (ENSA)

Posted: 28th June 2020 by ccna7guru in ENSA

These course materials will assist you in developing the skills necessary to do the following: Explain how single-area OSPF operates in both point-to-point and broadcast multiaccess networks. Verify single-area OSPFv2 in both point-to-point and broadcast multiaccess networks. Explain how vulnerabilities, threats, and exploits can be mitigated to enhance network security. Explain how ACLs are used […]


Posted: 21st June 2020 by ccna7guru in ENSA

OSPFv3 is the OSPFv2 equivalent for exchanging IPv6 prefixes. Recall that in IPv6, the network address is referred to as the prefix and the subnet mask is called the prefix-length. Similar to its IPv4 counterpart, OSPFv3 exchanges routing information to populate the IPv6 routing table with remote prefixes. Note: With the OSPFv3 Address Families feature, […]

Link-State Operation of OSPF

Posted: 21st June 2020 by ccna7guru in ENSA

To maintain routing information, OSPF routers complete a generic link-state routing process to reach a state of convergence. The figure shows a five router topology. Each link between routers is labeled with a cost value. In OSPF, cost is used to determine the best path to the destination. The following are the link-state routing steps […]