What is the key distribution problem of the symmetric (secret) key encryption?

1 answer:

6 0

When encrypting content with a symmetric key, the receiving party needs to have this key in order to decrypt. However, there is a fundamental problem that the key itself cannot be easily shared with the receiver over an unsafe channel, where attackers could eavesdrop and capture it as well.

The solution for this is either to use asymmetric key encryption, or to use a key exchange algorithm such as the one devised by Diffie-Hellman.

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"Switches break up _______________ domains and routers break up _____________ domains."

mel-nik [20]

Answer:

Switches break up collision domains and routers break up broadcast domains.

Explanation:

Collision domain depicts the part within a network where a collision can happen.
Collision occurs when two hosts transmit data packet at the same time within a network. Theses packets collide and the hosts have to resend the data after some time.
Too many collisions can result in slow traffic speed and can effect network performance.
So switches break up collision domains between the devices on a network and each port in a switch depicts a collision domain. This reduces the chance of packet collisions between the devices or hosts.
When data is to be sent to a host, the switch keeps that data frame and waits for availability of the destination host before sending the data frame.
Moreover full duplex switch mode there is not chance of collision as the transmitting path on one host is the receiving path on other host.

Broadcast domain contains all the hosts that can reach each other at the Data Link layer via broadcast.
Routers break up broadcast domains as routers contain separate broadcast domains for each interface.
Routers do not forward broadcasts from one broadcast domain to other and drop the packet when they detect a broadcast address.

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3 years ago

What acronym is used to reference the data link sublayer that identifies the network layer protocol encapsulated in the frame?

juin [17]

Logical Link Control is the data link sublayer that identifies the network layer protocol encapsulated in the frame. The acronym of Logical Link Control is LLC.

Therefore, the answer is LLC.

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3 years ago

A start-up is expanding overseas and spends an excessive amount of time on recruiting and hiring activities, hindering its abili

leva [86]

HCM is a word for Human Capital Management

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3 years ago

Printed versions of your presentation that contain the slides and blank lines below are called speakers notes

Vadim26 [7]

No, printed versions of your presentation that contain the slides and blank lines below are not called speakers notes.

Speakers notes are notes that are hidden within a PowerPoint presentation and allowing the speaker to refer back to them during the presentation.

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3 years ago

Read 2 more answers

How can people efficiently and effectively influence lots of people throughout the world

tatuchka [14]

Answer:

The word efficient denotes the ability to achieve a good goal toward a person, and effectiveness denotes reliable production or achievement.

Explanation:

Many people around the world can set efficient goals, that is, to influence or encourage other people to make good projects or changes in their lives, by example or simply teach them with patience and altruism.

In this way effectiveness will be seen, that is, the product or the achievement precisely when we observe how people undertake new projects in their lives

3 0

3 years ago