The data link layer software would replace the MAC address of the next hop or gateway when the destination address of a network packet is to a remote network.
<h3>What is a
data link layer?</h3>
The data link layer is the second layer of the OSI model and it can be defined as an interface between the network and physical layer. Also, it comprises two (2) main sublayers and these include the following:
- Logical link control (LLC) layer.
- Media access control (MAC) layer.
In Computer networking, the data link layer software would replace the MAC address of the next hop or gateway when the destination address of a network packet is to a remote network.
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Answer:
Crossover Error Rate(CER)
Explanation:
Crossover Error Rate is an important metrics in the biometric systems.It is the value of FRR and FAR when the sensitivity is framed so that FRR and FAR are equal. The Crossover Error Rate(CER) is suitable for quantitative comparison of different biometric devices, applications or solutions.
Answer: Preamble
Explanation:
Preamble is a 7- octet pattern of alternating the 0's and 1's and it allow devices in the network to easily synchronized the receiver clock. It also provide the bit level synchronization.
It basically allow the start of frame delimiter to provide the byte synchronization and assign a new frame. The bits are transmit orderly from left to right in the frame.
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