Types Of Network Protocol | TCP | IP | UDP | POP | SMTP | FTP | HTTPS |Computer Networks|Simplilearn

Summary

This video script offers an insightful overview of network protocols, essential for enabling communication across devices and the internet. It delves into the history of protocols like TCP/IP, their importance for data transfer, and security. The script introduces various protocols including TCP, UDP, IP, POP, SMTP, FTP, and HTTPS, explaining their unique functions and roles in networking. The video also promotes a cybersecurity postgraduate program, highlighting its practicality and the career advancement opportunities it offers.

Takeaways

• 🌐 Network protocols are essential for communication over a network, enabling different devices to communicate and share resources.
• 📚 The history of network protocols dates back to the development of TCP/IP in the late 1970s by engineers at the University of California Berkeley.
• 🔄 Network protocols establish rules for data formatting, transmission, and interpretation, ensuring devices can understand each other.
• 🗣️ Protocols serve as a common language for devices, allowing them to successfully share information and work together effectively.
• 🔒 Network protocols provide security measures to protect data from unauthorized access and ensure confidentiality.
• 🔄 Ethernet is a network protocol used in local area networks (LANs) to transmit data packets between devices.
• 🔗 TCP (Transmission Control Protocol) ensures reliable and ordered delivery of data, handling error detection and re-transmission.
• 🌐 IP (Internet Protocol) assigns unique addresses to devices and routes data packets across the internet to their destinations.
• 🚀 UDP (User Datagram Protocol) offers a faster, less reliable method of data transmission, used in time-sensitive applications like streaming.
• 📧 POP (Post Office Protocol) allows for the retrieval of emails from a mail server to a client device for local management.
• 💌 SMTP (Simple Mail Transfer Protocol) is used for sending emails from a client to a mail server, ensuring reliable email delivery.
• 🔒 FTP (File Transfer Protocol) provides a standard method for uploading and downloading files between devices over a network.
• 🔒 HTTPS (Hypertext Transfer Protocol Secure) is a secure version of HTTP that encrypts data to protect it from unauthorized access.

Q & A

What are network protocols and why are they essential for communication over a network?

Network protocols are a set of rules and standards that govern how devices communicate with each other over a network. They are essential because they allow different devices to understand each other, ensuring data is formatted, transmitted, and interpreted correctly, which is crucial for the functioning of the internet.

What problem were TCP and IP designed to address in the late 1970s?

TCP (Transmission Control Protocol) and IP (Internet Protocol) were designed to address the problem of enabling reliable communication between different devices over a network. They established a standard for data transmission, ensuring data packets are correctly formatted, addressed, and routed to their destinations.

What is the role of Ethernet in a Local Area Network (LAN)?

Ethernet is a network protocol that facilitates communication between devices within a Local Area Network (LAN). It operates like a highway for data, ensuring packets of information are sent and received in the correct order and reach the intended destination.

What is the main difference between TCP and UDP in terms of data transmission?

TCP (Transmission Control Protocol) ensures reliable and ordered delivery of data, handling error detection and re-transmission. In contrast, UDP (User Datagram Protocol) provides a faster but less reliable method of data transmission, without establishing a connection or guaranteeing packet delivery or order.

How does the Post Office Protocol (POP) function in email retrieval?

POP is used for retrieving emails from a mail server to a client device. It allows users to download emails and manage them locally, typically used by email clients like Outlook or Thunderbird.

What is the purpose of the Simple Mail Transfer Protocol (SMTP)?

SMTP is used for sending emails from a client device to a mail server. It handles the transmission of email messages and ensures they are delivered to the appropriate recipients' mail servers, providing a reliable email transfer mechanism.

What is File Transfer Protocol (FTP) and how does it facilitate file transfers?

FTP is a network protocol used for transferring files between devices over a network. It provides a standard method for uploading and downloading files to and from a remote server, allowing users to navigate directories, transfer files, and manage file permissions.

What does HTTPS provide that HTTP does not, and why is it important?

HTTPS (Hypertext Transfer Protocol Secure) is a secure version of HTTP that provides encryption and authentication. It ensures that data transmitted between a web browser and a web server is encrypted, protecting it from unauthorized access, which is important for secure online transactions and sensitive data transfers.

Why are network protocols necessary for ensuring interoperability among devices?

Network protocols are necessary for interoperability because they provide a common language or set of rules that different devices, regardless of manufacturer or function, can follow to communicate and work together seamlessly.

What are some of the key historical developments in network protocols mentioned in the script?

One of the key historical developments mentioned is the creation of TCP and IP by a team of engineers at the University of California Berkeley, led by Vince Cerf and Bob Kahn, which quickly became the de facto standard for networking on the internet.

How does the script suggest one can advance their career in cybersecurity?

The script suggests that one can advance their career in cybersecurity by enrolling in a postgraduate program, such as the one offered by SimplyLearn, which includes modules from MIT Schwarzman College of Engineering and is led by highly skilled, certified instructors.

Outlines

00:00

🌐 Introduction to Network Protocols

This paragraph introduces the concept of network protocols, emphasizing their necessity for communication across networks and data sharing between devices. It explains that without these protocols, the internet as we know it would not exist. The paragraph also delves into the history of network protocols, highlighting the development of TCP/IP by engineers at the University of California, Berkeley, and their widespread adoption as the standard for internet networking. The video promises to cover various important network protocols and their functionalities, starting with an interactive question about the common use of Ethernet in different types of networks.

05:02

📦 Understanding Ethernet and Network Protocol Types

This paragraph delves deeper into Ethernet, describing it as a network protocol facilitating communication within a Local Area Network (LAN). It compares Ethernet to a highway for data packets, ensuring their correct delivery and order. The paragraph then lists various types of network protocols, including TCP for reliable data transmission, IP for addressing and routing, UDP for faster but less reliable data transfer, POP for email retrieval, SMTP for email sending, FTP for file transfers, and HTTPS for secure web transactions. Each protocol is briefly explained in terms of its purpose and application, showcasing their collective importance in facilitating communication and data transfer across networks.

10:03

🎓 Advancing Careers with Cyber Security Education

The final paragraph shifts focus from technical details to the importance of continuous learning and upskilling in the field of cyber security. It promotes a postgraduate program in cyber security offered by SimplyLearn, mentioning its collaboration with MIT Schwarzman College of Engineering. The paragraph includes a testimonial from a learner who successfully completed the program and passed certification exams, highlighting the practicality and effectiveness of the course. The video concludes with an invitation to explore SimplyLearn's catalog of certification programs in various domains and a call to action for viewers to subscribe to their YouTube channel for more informative content.

Keywords

💡Network Protocols

Network protocols are a set of rules governing data communication within a network. They are essential for enabling different devices to communicate and share resources. In the video, network protocols are likened to a common language that devices must follow to understand each other, ensuring reliable data transfer and establishing the foundation of internet communication.

💡Transmission Control Protocol (TCP)

TCP is a network protocol designed to ensure reliable and ordered delivery of data between devices. It breaks down data into packets, sends them across the network, and reassembles them correctly at the receiving end. The script mentions TCP as one of the earliest efforts to standardize internet communication, highlighting its role in error detection and re-transmission.

💡Internet Protocol (IP)

IP is responsible for addressing and routing of packets across the internet. It assigns unique IP addresses to devices and determines the path data takes from the source to the destination. The video emphasizes IP's role in ensuring that data packets reach their intended destination by routing them through network devices like routers.

💡User Datagram Protocol (UDP)

UDP is a faster but less reliable method of data transmission compared to TCP. It does not guarantee packet delivery or order, making it suitable for time-sensitive applications such as video streaming or online gaming where minor data loss is tolerable. The script positions UDP as an alternative to TCP for specific use cases.

💡Ethernet

Ethernet is a type of network protocol used in Local Area Networks (LANs) to connect devices and enable communication. It operates by transmitting data in the form of packets, ensuring delivery to the correct destination and in the right order. The video describes Ethernet as a 'highway' for data to travel between devices like computers and printers.

💡Post Office Protocol (POP)

POP is a network protocol used for retrieving emails from a mail server to a client device. It allows users to download and manage emails locally. The script introduces POP as part of the discussion on different types of network protocols, illustrating its specific function in email retrieval.

💡Simple Mail Transfer Protocol (SMTP)

SMTP is the protocol responsible for sending emails from a client device to a mail server. It ensures the reliable transfer of email messages to the appropriate recipients. The video mentions SMTP in the context of network protocols that facilitate email communication over the internet.

💡File Transfer Protocol (FTP)

FTP is a protocol used for transferring files between devices over a network. It provides a standard method for uploading and downloading files to and from a remote server, allowing users to navigate directories and manage file permissions. The script highlights FTP as a crucial protocol for file management across networks.

💡Hypertext Transfer Protocol Secure (HTTPS)

HTTPS is a secure version of HTTP that provides encryption and authentication for data transmitted between a web browser and a web server. It is used to protect sensitive information during online transactions and data transfers. The video emphasizes the importance of HTTPS in ensuring privacy and security in internet communication.

💡Interoperability

Interoperability refers to the ability of different devices, from various manufacturers and with different functions, to work together seamlessly. Network protocols facilitate interoperability by providing a common set of rules for communication. The script explains that interoperability is one of the key needs that network protocols address, allowing diverse devices to connect and interact.

💡Cybersecurity

Cybersecurity is the practice of protecting networks, devices, programs, and data from digital attacks. Network protocols play a significant role in cybersecurity by including measures to protect data from unauthorized access. The video touches on cybersecurity in the context of a postgraduate program, suggesting the importance of understanding network protocols for a career in this field.

Highlights

Network Protocols are essential for communication over a network, enabling different devices to communicate and share resources.

Without network protocols, the transfer of data between different devices would be impossible, making the modern internet infeasible.

The history of network protocols dates back to the earliest days of computers and the internet, with the development of TCP/IP in the late 1970s.

TCP/IP was designed by a team at the University of California Berkeley, led by Vince Cerf and Bob Kahn, and became the standard for internet networking.

Network protocols establish rules for data formatting, transmission, and interpretation, ensuring reliable communication between devices.

Ethernet is a network protocol used in Local Area Networks (LANs) to connect and communicate between devices.

Ethernet functions like a highway for data, ensuring packets are delivered correctly and in order.

Network protocols are necessary for ensuring devices understand each other, similar to humans needing a common language.

Protocols ensure data is transmitted reliably, with mechanisms to detect and correct errors in data packets.

Network protocols provide security measures to protect data from unauthorized access, maintaining confidentiality.

Interoperability is facilitated by network protocols, allowing devices from different manufacturers to work together seamlessly.

TCP (Transmission Control Protocol) ensures reliable and ordered delivery of data, handling error detection and re-transmission.

IP (Internet Protocol) is responsible for addressing and routing packets across the internet, assigning unique IP addresses to devices.

UDP (User Datagram Protocol) offers a faster, less reliable method of data transmission, suitable for time-sensitive applications.

POP (Post Office Protocol) is used for retrieving emails from a mail server to a client device, allowing local email management.

SMTP (Simple Mail Transfer Protocol) is used for sending emails from a client to a mail server, ensuring reliable email delivery.

FTP (File Transfer Protocol) enables file transfers between devices over a network, providing standard methods for file management.

HTTPS (Hypertext Transfer Protocol Secure) is a secure version of HTTP, providing encryption and authentication for secure online transactions.

The video also promotes a postgraduate program in cybersecurity from SimplyLearn, featuring modules from MIT and testimonials from learners.

Transcripts

Network Protocols are needed to enable

communication over a network which

allows different devices to communicate

with each other and share resources

without network protocols networks would

not be able to transfer data between

different devices making the internet as

we know it today impossible when two

devices connect to a network they need a

way to communicate with each other

network protocols provide this method of

communication by establishing rules and

protocols they must be followed when

transmitting data they Define how data

should be formatted how it should be

transmitted and how it should be

interpreted among other things in fact

the history of network protocols is a

fascinating one too that stretches back

to the earliest days of computers and

the internet one of the earliest efforts

to address this problem was the

development of transmission control

protocol TCP and the Internet Protocol

IP back in the late 1970s these

protocols were designed by a team of

Engineers at the University of

California Berkeley led by Vince kuff

and Bob Khan and they quickly became the

de facto standard for networking on the

internet since then there have been many

advances and improvements to network

protocols and in this video we will be

discussing all of the important

networking protocols and their

functionality so grab onto your seats

and stay tuned till the end to learn

everything there is to know about

networking protocols all right so in

this video we will cover topics like

introduction to network protocols need

of network protocols what is ethernet

then types of network protocols like TCP

UDP IP post office protocol pop and smtv

and much more now before moving forward

let me ask you a quick question so

ethernet is commonly used in which type

of network option is Lan local linear

Network option b is w-a-n wide area

network options C is pan personal area

network and option D is m a n

metropolitan area network now you can

pause this video and answer in the

comment section below so let's start

with the first topic which is

Introduction to network protocol a

network protocol is like a set of rules

that govern how devices in a network

communicate with each other these rules

are like instructions that specify how

data should be sent received and

understood by the devices Network

Protocols are formalized requirements

and plans that consist of rules and

procedures that describe how devices

should interact with each other over a

network they provide a communication

system to exchange information using

various physical means such as cables or

wireless connections just like humans

follow certain protocols when they

interact with each other network

protocols Define a specific steps and

guidelines for devices to follow these

rules ensure that information is sent

and received correctly and that all

devices involved understand each other

in essence Network Protocols are a way

for devices to speak the same language

and follow a common set of guidelines so

that they can successfully share

information and work together

effectively now let's understand the

need of network protocols all right so

let me explain this to you in simple

terms Network Protocols are like

guidelines that devices follow when they

communicate with each other over a

network these Protocols are needed for

several reasons firstly Network

protocols ensure that devices understand

each other imagine if you and your

friend were speaking different languages

and had no way to understand each other

communication would be impossible

similarly devices from different

manufacturers and with different

functions need a Common Language or

protocol to understand each other's

signals and data secondly Network

protocols ensure that data is

transmitted reliably when you send a

message or a browser a website you want

to make sure that the information

reaches its destination accurately and

without errors Network protocols help in

breaking down data into smaller packets

sending them across the network and

reassembling them correctly at the

receiving end thirdly Network protocols

provide security they include measures

to protect data from unauthorized access

and ensure that sensitive information

remains confidential this is

particularly important when you make

online transactions or share personal

information over the Internet lastly

Network protocols allow for

interoperability this means that devices

from different manufacturers and with

different functions can work together

seamlessly for example your computer can

connect to a printer and your smartphone

can access a Wi-Fi network because they

follow the same protocols so these were

some of the needs of network protocols

now before understanding the types of

network protocols we must to understand

about ethernet so ethernet is a type of

network protocol that helps devices

connect and communicate with each other

in a local area network Lan it is like a

highway that allows data to travel

between devices such as computers

printers and routers ethernet uses a set

of rules and procedures to transmit data

in the form of packets these packets are

like small packages of information that

are sent from one device to another

ethernet ensures that these packets are

delivered to the right destination and

in the correct order think of ethernet

as the road system that connects all the

devices in our Network it ensures that

data can flow smoothly between devices

enabling them to share information and

work together efficiently now let's have

a look at the types of network protocols

here we will cover some of the types of

network protocols we'll start with the

first one which is TCP that is

transmission control protocol TCP is a

network protocol that ensures reliable

and order delivery of data between

devices it breaks down data into smaller

packets sends them across the network

and ensures that they are reassembled

correctly to the receiving end TCP also

handles error detection and

re-transmission if any packets are lost

or corrupted during transmission so this

was about TCP or transmission control

protocol now second is IP that is

Internet Protocol IP is another Network

protocol that handles the addressing and

routing of packets across the internet

it assigns unique IB addresses to

devices and determines how data is sent

from The Source device to the

destination device IP ensures that the

data packets reach the right destination

by routing them through various network

devices like routers third is UDP or

user datagram protocol you UDP is a

network protocol that provides a faster

but less reliable method of data

transmission compared to TCP it does not

establish a connection or guarantee

packet delivery or order

UDP is commonly used for time sensitive

applications like video streaming or

online gaming where a small amount of

data loss is acceptable next is pop that

is post office protocol pop is a network

protocol used for retrieving emails from

a mail server to a client device it

allows users to download emails from the

server onto their device and manage them

locally pup is typically used by email

clients like Outlook or Thunderbird next

we have is SMTP or simple mail transfer

protocol SMTP is a network protocol used

for sending emails from a client device

to a mail server it handles the

transmission of email messages and

ensure that they are delivered to the

appropriate recipients mail server SMTP

is responsible for the reliable transfer

of email across different mail Reserves

so this was about simple make transfer

protocol now let's understand the sixth

one which is file transfer protocol or

FTP FTP is a network protocol used for

transferring files between devices over

a network it provides a standard method

for uploading and downloading files to

and from a remote server FTP allows

users to navigate directories transfer

files and manage file permissions now

coming to the next which is hypertext

transfer protocol secure that is https

HTTP is a secure version of HTTP that

provides encryption and authentication

it ensures that the data transmitted

between a web browser and a web server

is encrypted and protected from

unauthorized access http

s is commonly used for secure online

transactions sensitive data transfers

and protecting users privacy so these

were some of the types of network

protocols so basically Network protocols

play a crucial role in enabling

communication and data transfer across

various computer networks we have

explored several types of network

protocols each serving specific purpose

and operating at different layers of

networking model so if you are someone

who is interested in building a career

in cyber security by graduating from the

best universities then try giving a shot

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Schwartzman College of Engineering also

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our first alright guys with that we have

come to the end of this video If you

like this video please give it a thumbs

up I hope it really helped you all

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