Let us understand the concepts of data security and data privacy.Data SecurityIt uses physical and logical strategies to protect information from cyber attacks, and accidental or intentional data loss.It is a technology and technique which is use to prevent the following −Unauthorized accessIntentional loss of sensitive dataAccidental loss or corruption of sensitive dataSo, data security is a technologically sophisticated, holistic approach which secures every network, application, device and data repository in an enterprise IT infrastructure.Data security includes the followingPhysical access controls to serversMulti-factor Authentication (MFA) requirementsLeast-privilege access controlsPassword complexity requirementsData encryptionIdentification and remediation of stale dataData PrivacyData privacy is defined ... Read More

To begin with, let us learn the concepts of data protection and data privacy.Data ProtectionData protection is inclusive of the strategies that we can use to secure the privacy, availability, and integrity of our data. It is also called data security or information privacy.Data protection is important for any organization which collects, handles, or stores sensitive data. This strategy can help prevent data loss, theft, or corruption and can help minimize damage caused by disaster.Data PrivacyData privacy is defined as only the authorised person can access the data. It is typically applied to personal health information (PHI), personally identifiable information ... Read More

The three types of Carrier Sense Multiple Access (CSMA) Protocols are as follows −1-persistent CSMANon- Persistent CSMAp-persistent CSMAp-persistent CSMAThe p-persistent CSMA is used whenever the channel has time slots so that the time slot duration is equal to or greater than the maximum propagation delay time. The p-persistence senses the channel whenever a station becomes ready to send.Suppose if the channel is busy, then the station has to wait till the next slot is available.The p-persistence transmits with a probability p when the channel is idle. With a probability q=1-p, the station has to wait for the beginning of the ... Read More

The three types of Carrier Sense Multiple Access (CSMA) Protocols are as follows −1-persistent CSMANon- Persistent CSMAp-persistent CSMA1-persistent CSMAIn this method, to transmit data the station wants to continuously sense the channel to check whether the channel is busy or idle.Suppose, if the channel is busy, then the station will wait until it becomes idle. Whenever the station detects an idle-channel, then it transmits the frame with probability. Therefore this persistence is called 1-persistent CSMA.The 1-persistent CSMA has the highest chance of collision because two or more stations identify a channel to be idle at the same time and transmit ... Read More

The three types of Carrier Sense Multiple Access (CSMA) Protocols are as follows −1-persistent CSMANon- Persistent CSMAp-persistent CSMA1-persistent CSMAIn this method, to transmit data the station wants to continuously sense the channel to check whether the channel is busy or idle.Suppose, if the channel is busy, then the station will wait until it becomes idle. Whenever the station detects an idle-channel, then it transmits the frame with probability. Therefore this persistence is called 1-persistent CSMA.The 1-persistent CSMA has the highest chance of collision because two or more stations identify a channel to be idle at the same time and transmit ... Read More

Let us understand the concepts of Amazon S3 and MiMedia before learning about their differences.Amazon S3It is a database service offered by the Amazon Company as a repository for the internet. It provides quick access to data objects along with their storage along with security, performance reliability and at economical prices. S3 is a Simple Storage Service.FeaturesThe features of Amazon S3 are as follows −In order to access S3 Storage you need to have an AWS account.It offers a pay per use model where you need to pay for only the storage space which you have actually used.It can be ... Read More

The Name Binding Protocol (NBP) allows you to bind a name to the internal storage address of the entity and register that mapping so that other entities can follow.An NBP name was displayed by the applications to the users and used addresses internally to locate entities. When we register the entity's name and address, NBP validates its uniqueness.Generally, an entity name consists of three fields, which are as follows −The object − Object field is used to identify the user of the system. Because of the applications this value is set to the owner name, where the user specifies with ... Read More

Let us understand the concepts of Thunderbolt 2 and 3 respectively.Thunderbolt 2Thunderbolt 2 connector is a Mini DisplayPort connector developed by Apple. It allows a maximum throughput of 20 gigabits per second, whereas the original Thunderbolt port can deliver up to a maximum of 10 Gbps. It achieves over the USB 3.0 technology that has a maximum speed of only 5 Gbps.Given below is the image of thunderbolt 2 −Thunderbolt 3It is the latest and the fastest version of the Thunderbolt provides a maximum throughput of 40 gigabits per second. It was introduced in 2015, by Intel’s. It proves to ... Read More

A VLAN is called a subnetwork that can group together devices on separate physical local area networks. A LAN is a group of computers or devices that share a communications line/wireless link to a server within the same geographical area.VLANs provide security on larger networks by allowing a higher degree of control over which devices have access to each other. They are flexible because VALNs are based on logical connections, rather than physical.Working of VLANWhen a switch receives an Ethernet frame, the frame will either already have a VLAN tag or switch will insert a VLAN tag into the Ethernet ... Read More

The transmission technologies are divided into two types −Broadcast networks andPoint-to-point networks.Let us begin by learning about broadcast networks.Broadcast NetworksTransmitting data from one source host to all other hosts present in the same or other network is called broadcast. It is called a one to all transmission.Types of broadcastBroadcast is classified into two types, which are as follows −Limited BroadcastTransmitting data from one source host to all other hosts present in the same network is called a limited broadcast. Given below is the diagram of limited broadcast −In Limited Broad casting if the destination address is 255.255.255.255 then the packet ... Read More