COMPUTER ETHICS AND SECURITY
TYPES OF THREATS AND ATTACKS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Bit
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Packet
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Segmant
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Datagram
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Detailed explanation-1: -OSI model. Protocol data units of the OSI model are: The Layer 4: transport layer PDU is the segment or the datagram.
Detailed explanation-2: -PDU is a significant term related to the initial four layers of the OSI model. In Layer 1, PDU is a bit, in Layer 2 it is a frame, in Layer 3 it is a packet and in Layer 4 it is a segment. In Layer 5 and above, PDU is referred to as data.
Detailed explanation-3: -Layer 4 of the OSI Model: Transport Layer provides transparent transfer of data between end users, providing reliable data transfer services to the upper layers. The transport layer controls the reliability of a given link through flow control, segmentation and desegmentation, and error control.
Detailed explanation-4: -Transmission Control Protocol (TCP) operates at the transport layer (Layer 4).
Detailed explanation-5: -What do you call data that includes the Layer 4 protocol header, and data given to Layer 4 by the upper layers, not including any headers and trailers from Layers 1 to 3? (Choose two answers.) C (Segment) and F (L4PDU) . The terms packet and L3PDU refer to the header plus data encapsulated by Layer 3.