Archive for the ‘ITN’ Category

PacketTracer 8.0.1

Posted: 23rd July 2021 by ccna7guru in ITN

New release! Check out the updated login experience with Cisco#PacketTracer 8.0.1. Plus you’ll get security improvements and more bug fixes. NEW RELEASE OF CISCO PACKET TRACER 8.0.1 What’s New in Packet Tracer 8.0.1? Login experience now provides options to sign in with or credentials Removed guest login option to provide a faster and better user […]

Transport Layer Responsibilities

Posted: 21st May 2021 by ccna7guru in ITN

The transport layer has the following responsibilities: •Tracking individual conversations •Segmenting data and reassembling segments •Adds header information •Identify, separate, and manage multiple conversations •Uses segmentation and multiplexing to enable different communication conversations to be interleaved on the same network

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> […]

Free DEVASC 200-901 Course

Posted: 3rd February 2021 by ccna7guru in ITN

Download Full Course here

The OWASP Top 10

Posted: 31st January 2021 by ccna7guru in ITN

Now that you know about three of the most well-known attacks, here is the entire OWASP Top 10 list. Injection – This item consists of all sorts of injection attacks. We talked earlier about SQL injection, but this is only the most common. All databases, such as LDAP databases, Hibernate databases, and others, are potentially vulnerable. […]

STP Port States and BPDU Timers

Posted: 13th December 2020 by ccna7guru in ITN

To facilitate the learning of the logical spanning tree and avoid loops, each switch port transitions through five possible port states and uses three BPDU timers.The five STP port states are as follows:■ Blocking: The port is a non-designated port and does not participate in frame forwarding. The port continues to process received BPDU frames […]

Spanning-Tree Algorithm

Posted: 13th December 2020 by ccna7guru in ITN

STP ensures that there is only one logical path between all destinations on the network by intentionally blocking redundant paths that could cause a loop. A switch port is considered blocked when network traffic is prevented from entering or leaving that port. STP uses the spanning-tree algorithm (STA) to determine which switch ports on a […]

NEW CCNA 200-301 PATTERN IN EXAMINATION Network Fundamentals: Includes basic fundamentals of networking 20% Network Access: How to connect to a network 20% IP Connectivity: Basics of Routing and Switching 25% IP Services: Includes services DNS, DHCP, FTP… 10% Security Fundamentals: Foundational knowledge 15% Automation and Programmability: Importance, basics and application 10%

Port Address Translation

Posted: 17th November 2020 by ccna7guru in ITN

Port Address Translation (PAT), also known as NAT overload, maps multiple private IPv4 addresses to a single public IPv4 address or a few addresses. This is what most home routers do. The ISP assigns one address to the router, yet several members of the household can simultaneously access the internet. This is the most common […]

Dynamic NAT

Posted: 17th November 2020 by ccna7guru in ITN

Dynamic NAT uses a pool of public addresses and assigns them on a first-come, first-served basis. When an inside device requests access to an outside network, dynamic NAT assigns an available public IPv4 address from the pool. In the figure, PC3 has accessed the internet using the first available address in the dynamic NAT pool. […]