Answer:
Auto-negotiation protocol is the modern technology in the networking. This protocol allow the ethernet equipment for automate different instillation steps. This type of protocol use by interconnecting various electronic devices for negotiating the speed of the link.
Advantages:
- The auto negotiation protocol features used to maximize the throughput of data link layer.
- This protocol are basically useful in the local area network (LAN), with multiple capability of connections.
- The auto negotiation protocol extremely useful in twisted pair which are based on ethernet.
Disadvantages:
- This type of protocol are not fixed data links and not used as backbone of the networks.
- Duplex mismatch occur then, it cause significant loss in the packets.
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Answer:
Incomplete Question.
I'll answer this question based on general terms
Explanation:
Two Factor Authentication, abbreviated as 2FA.
It is a type of authentication that requires the presentation of two credentials for access to personal data and information.
The credentials needed for a 2FA are
1. Either of the following; PIN, Password or Pattern
2. Your device or gadget which could be an ATM Card, Mobile Phone
3. Biometrics such as fingerprint, voice input
Number one is often referred to as "Something you know"
Number two is referred to as "Something you have"
Number three is referred to as "Something you are"
The 2FA doesn't require the three aforementioned credentials. It only needs just two of the credentials to provide its authentication.
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