COMPUTER FUNDAMENTALS

COMPUTER NETWORKS AND COMMUNICATIONS

NETWORK TOPOLOGIES AND PROTOCOLS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which network layer does Ethernet operate at?
A
Transport Layer
B
Data Link Layer
C
Network Layer
D
Application Layer
Explanation: 

Detailed explanation-1: -The foremost data link layer protocol is the Ethernet protocol. The most significant protocol at layer 3 (also called the network layer) is the Internet Protocol, or IP.

Detailed explanation-2: -The foremost data link layer protocol is the Ethernet protocol. Like the check being placed into the envelope, the Ethernet protocol encapsulates data passed to it from higher layers. It also does the reverse: it decapsulates data that is presented to it from the physical layer.

Detailed explanation-3: -The Data Link layer is where the Ethernet protocol works.

Detailed explanation-4: -At the data link layer, Ethernet specifies what the data should look like, including the header and trailer. The protocol is defined by IEEE 802.3 and divides the data link layer into two sublayers: the Logical Link Control (LLC) sublayer and the Media Access Control (MAC) sublayer.

Detailed explanation-5: -Layer 2 Ethernet refers to the second layer of the OSI model, which is the data link layer of the network. Layer 2 is where data packets are encoded and decoded into bits. The protocol layer enables the transfer of data between adjacent network nodes in a network segment, such as a LAN.

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