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Submitted byheartin
onTue, 11/26/2019 - 21:48
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Let us quickly go through some important concepts related to subnets:

  • A network may be divided into sub networks for easy maintenance and security concerns. These sub networks are referred to as subnets.

  • Additional bits from the HID will be used for subnetting. The netmask for a subnet will represent the combination of NID bits (without subnet identifier bits) and subnet identifier bits, and this combined bit mask is usually called a subnet mask. 

Submitted byheartin
onTue, 11/26/2019 - 21:32
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Let us first quickly go through some important concepts related to IP addresses and CIDR:

  • An IPv4 address has 32 bits divided into 4 octets (Each octet consist of 8 bits). Each part (octet of bits) is represented in their decimal form separated by dots. E.g. 10.12.14.16. This format is referred to as dotted decimal format

  • The maximum decimal number that any of the four parts of an IPv4 address can hold is 255 as the largest binary number that can be represented by 8 bits is 11111111.

Submitted byheartin
onThu, 11/14/2019 - 12:01
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Following are some of the most important points related to Public Key Infrastructure (PKI) for passing exams and for general understanding.

  • Public Key Infrastructure (PKI) is a set of tools, protocols, processes, polices etc. that can help us to do secure communication using public key encryption.

Submitted byheartin
onThu, 11/14/2019 - 11:54
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Following are some of the most important points related to encryption for passing exams and for general understanding.

Submitted byheartin
onThu, 11/14/2019 - 11:45
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Following are some of the most important points related to digital certificates and hashing, for passing exams and for general understanding.

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