Network for you IT Institute. (Popular for free Cisco CCNA 200-301 Training.)

We are Team of Senior Engineers have more than 12 years experiences and providing CISCO Training classroom, on-site and online training on various Networks, Python for Network Engineer, CISCO Certifications Like CCNA 200-301, CCNP ENCOR 350-401, CCNP ENARSI 300-410 and Firewall etc. Also working as full time as MSO (Mobile Switching Office) Engineer.
Certifications:
Cisco Certified Network Professional CCNP (350-401-ENCOR and 300-410-ENARSI)

Our mission is to explain complex networking topics as simple as possible for you.
This site is dedicated to helping students understand complex networking topics. We do our level best to explain things as simple as possible to help people who want to pass the Cisco CCNA 200-301, CCNP and Firewall.

For More detail email us: networkforyou4@gmail.com
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What is TTL?
TTL (Time To Live) is a value in an IP packet that tells how long the packet is allowed to stay in the network before being discarded.
๐Ÿ‘‰ Simple definition: TTL = Maximum number of hops (routers) a packet can travel. How TTL works: When a packet is sent, it has a TTL value (e.g., 64, 128, 255) Each time the packet passes through a router (one hop), the TTL decreases by 1 When TTL becomes 0, the packet is dropped

16 hours ago | [YT] | 74

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What is Routing?
Routing is the process of selecting a path for data (or traffic) to travel from a source to a destination across a network.
In simple terms, itโ€™s like deciding which roads to take to get from your home to a specific location. In computer networks: Routing is used to send data packets from one device to another (e.g., from your phone to a website server).
Devices called routers handle this job.
Router = a device that directs data
Routing table = a list of possible paths
Best path = chosen based on speed, distance, or cost

1 day ago | [YT] | 121

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What is L2 Switch?
An L2 Switch (Layer 2 Switch) is a network device that works at the Data Link Layer (Layer 2) of the OSI model and is used to connect devices within a LAN.
It forwards data using MAC addresses.
๐Ÿ‘‰ Simple Definition L2 Switch = A device that connects devices in a LAN and forwards data using MAC addresses.

2 days ago | [YT] | 117

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๐Ÿ”— What is LACP?
LACP stands for Link Aggregation Control Protocol
๐Ÿ‘‰ It is a protocol used to automatically create and manage EtherChannel (Port-Channel).

3 days ago | [YT] | 110

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๐Ÿ”— What is EtherChannel?
EtherChannel is a technology used to combine multiple physical Ethernet links into one logical link.

๐Ÿ‘‰ So instead of using 1 cable, you can use 2, 4, 8 cables together as one.

4 days ago | [YT] | 104

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LLDP stands for Link Layer Discovery Protocol
LLDP is a network protocol that helps devices identify and share information with directly connected neighbors.

5 days ago | [YT] | 151

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What is a NIC Card?
NIC stands for:
๐Ÿ‘‰ Network Interface Card
๐Ÿ‘‰ It is a hardware device that allows a computer to connect to a network. Simple Meaning
๐Ÿ‘‰ NIC = Device that connects your computer to network Without NIC:
โŒ No internet
โŒ No communication with other devices

6 days ago | [YT] | 116

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What is CIDR?
CIDR stands for:
๐Ÿ‘‰ Classless Inter-Domain Routing Simple Meaning CIDR is a way to write subnet masks using "/number" format instead of long numbers.
๐Ÿ‘‰ It tells how many bits are used for the network Example Instead of writing: Subnet Mask: 255.255.255.0 We write:
๐Ÿ‘‰ /24

1 week ago | [YT] | 145

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What is a Subnet Mask?
A subnet mask is a number used in networking to tell:
๐Ÿ‘‰ Which part of an IP address is the network
๐Ÿ‘‰ Which part is the host (device) Easy Example IP Address: 192.168.1.10 Subnet Mask: 255.255.255.0
๐Ÿ‘‰ Here: 192.168.1 โ†’ Network part .10 โ†’ Host (device) part So this device belongs to the 192.168.1.0 network

1 week ago | [YT] | 138

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๐Ÿ“˜ What is TCP and UDP?

TCP (Transmission Control Protocol) is a connection-oriented protocol that ensures reliable and accurate data delivery.

๐Ÿ”น Key Features of TCP
โœ… Reliable โ†’ Data reaches destination correctly
๐Ÿ”„ Acknowledgment (ACK) โ†’ Confirms data received
๐Ÿ” Retransmission โ†’ Lost packets are resent
๐Ÿ“ฆ Ordered delivery โ†’ Data arrives in sequence
๐Ÿ›ก๏ธ Error checking โ†’ Detects and corrects errors
๐Ÿ”น Where TCP is Used
๐ŸŒ Web browsing (HTTP/HTTPS)
๐Ÿ“ง Email (SMTP, IMAP, POP3)
๐Ÿ“ File transfer (FTP)
๐Ÿ“˜ What is UDP?

UDP (User Datagram Protocol) is a connectionless protocol that sends data without reliability checks, making it much faster.

๐Ÿ”น Key Features of UDP
โšก Fast โ†’ No connection setup
โŒ No acknowledgment
โŒ No retransmission
โŒ No ordering guarantee
๐Ÿ” Minimal error checking
๐Ÿ”น Where UDP is Used
๐ŸŽฅ Video streaming
๐ŸŽฎ Online gaming
๐Ÿ“ก VoIP (voice calls)
๐Ÿ“บ Live broadcasts

1 week ago | [YT] | 111