July 2018 - Cyber security & Technology

July 2018 - Cyber security & Technology

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File management in an operating system, and what is the file concept? FIle naming and file attributes.
what is dispatcher? three functions of it and scheduling criteria and its algorithms.?
Preemptive and non preemptive scheduling .. Comparison between both
what is CPU scheduling? definition and types of schedulars.
Multithreading models and its types, comparison between process and thread.
what are threads and processes? types of threads and advantages and disadvantages.
what are threads? what is multithreading? definition with examples and advantages of multithreading.
What are operating system services? Get know more about Operating system.
Operating system as a Resourse Manager.
what is an Operation system and operating system as an extented machine.
What is DIffie Hellman Algorithm ?? Definition with example. Encryption and decryption.
what are data encryption methods or traditional ciphers? substitution ciphers, Transposition ciphers , Monoalphabetic cipher, shift cipher and polyalbhabetic cipher
Advantages and disadvantages of e-mail?
what is MIME? multipurpose internet mail extensions. how is works?
What is Simple Mail Transfer Protocol? what is SMTP?SMTP commands, SMTP responses and mail transfer phases.
what is email adddress? what is user @ domain name? what is the format of a mail?
Services Provided by e-mail system, components of the e-mail system..
What is DNS (Domain name server or system)? working of DNS, types of domain names?
Routing algorithms , types of routing algorithms, Optimality Principle ?
What are peer to peer networks, client server networks, hybrid networks and what are the basis relationship of network classification with advantages and disadvantages?
What is IPv4 and its addressing? Subnet mask ? supernetting ? classless addressing? IP address format?
IPv6 , define IPv6 , what is IPv6 ? , structure of IPv6 and packet format.
What is POP3 ? Post office protocol
What is message integrity? How it works and comes in use?
What is digital signature? how it works?

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Tuesday, July 31, 2018

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What is DIffie Hellman Algorithm ?? Definition with example. Encryption and decryption.

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What is DIffie Hellman Algorithm ?? Definition with example. Encryption and decryption.

Manveer Singh July 31, 2018 0 Comments

Diffie-Hellman Algorithm · Whitefield Diffie and Martin Hellman developed algorithm for key exchange in 1976. · D...

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Labels: . protocols, algorithm, cyber security, decryption, diffie hellmain algorithm, email, encryption, ftp, information security, network security, SMTP, tcp, udp

Sunday, July 29, 2018

what are data encryption methods or traditional ciphers? substitution ciphers, Transposition ciphers , Monoalphabetic cipher, shift cipher and polyalbhabetic cipher

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what are data encryption methods or traditional ciphers? substitution ciphers, Transposition ciphers , Monoalphabetic cipher, shift cipher and polyalbhabetic cipher

Manveer Singh July 29, 2018 1 Comments

Data Encryption Methods or Traditional Ciphers The traditional ciphers are character-oriented and are organized into two categories (s...

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Labels: . protocols, ciphers substitution ciphers Transposition ciphers Monoalphabetic cipher, encryption, polyalbhabetic cipher, shift cipher

Saturday, July 28, 2018

Advantages and disadvantages of e-mail?

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Advantages and disadvantages of e-mail?

Manveer Singh July 28, 2018 0 Comments

Advantages of E-mails: 1. E-mails provide easy and faster mean of communication. One can send a message to any corner of the world...

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Labels: advantages and disadvantages of email, cyber security, e-mail, ftp, IMAP, information security, network security, pop3, protocols, services of e-mail, SMTP, technology

Friday, July 27, 2018

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what is MIME? multipurpose internet mail extensions. how is works?

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what is MIME? multipurpose internet mail extensions. how is works?

Manveer Singh July 27, 2018 0 Comments

MULTIPURPOSE INTERNET MAIL EXTENSIONS (MIME) · Multipurpose Internet Mail Extensions (MIME) is a supplementary protocol that a...

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Labels: #protocols, #technology, cyber security, email, information security, mail, MIME, MIME header, MTA, MTA client, MTA Server, multipurpose internet mail extensions, pop3, SMTP, tcp, udp

Tuesday, July 24, 2018

What is Simple Mail Transfer Protocol? what is SMTP?SMTP commands, SMTP responses and mail transfer phases.

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What is Simple Mail Transfer Protocol? what is SMTP?SMTP commands, SMTP responses and mail transfer phases.

Manveer Singh July 24, 2018 0 Comments

SIMPLE MAIL TRANSFER PROTOCOL (SMTP) · SMTP is a simple ASCII protocol that is based on client server model. · ...

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Labels: #informationsecurity, #protocols, cyber security, e-mail, mail, mail transfer phases, MTA client, MTA Server, network security, pop3, simple mail transfer protocol, SMTP, smtp commands, smtp responses, technology

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File management in an operating system, and what is the file concept? FIle naming and file attributes.

FILE MANAGEMENT · File management is the process of storing, controlling and managing data stored on disks or secondary s...

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What is DATA COMMUNICATION? How data communicates or transfers?

DATA COMMUNICATION 1. Definition Data communication refers to the exchange of data between two devices via same form of trans...
Port scanning

PORT SCANNING Concept: In a computer system there are 65535 ports which are used for data packets,information receiving and sending ...
what are threads and processes? types of threads and advantages and disadvantages.

Threads and Processes An idea of how threads and processes can be related to each other is depicted in fig. There are several similariti...
Routing algorithms , types of routing algorithms, Optimality Principle ?

ROUTING ALGORITHMS · One of the important functions of network layer is routing the packets from source machine to the destinat...

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