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Which of the following IP addresses can be used as (a) loop-back addresses?
- a)0.0.0.0
- b)127.0.0.1
- c)255.255.255.255
- d)0.255.255.255
Correct answer is option 'B'. Can you explain this answer?
Most Upvoted Answer
Which of the following IP addresses can be used as (a) loop-back addre...
Loopback Addresses
Loopback addresses are special IP addresses that are used to test network interfaces or network applications on a local machine. These addresses are used to send network traffic to the same machine it originated from, allowing the machine to communicate with itself.
Available Loopback Addresses
Out of the given options, the correct answer is option 'B' - 127.0.0.1. Let's understand why:
Explanation
1. 0.0.0.0: This IP address is used to represent an invalid, non-routable address. It is often used to indicate the default route or an uninitialized address. However, it is not a loopback address.
2. 127.0.0.1: This is the loopback address commonly used for loopback testing. It is reserved specifically for loopback purposes and always refers to the local machine. When a network application sends traffic to this address, it is immediately received and processed by the same machine.
3. 255.255.255.255: This IP address is used to represent a broadcast address. It is used to send a message to all devices on the network, rather than a specific device. However, it is not a loopback address.
4. 0.255.255.255: This IP address is an invalid address because it starts with 0 and is not reserved for any specific purpose. It is not a loopback address.
Conclusion
In conclusion, the loopback address that can be used is 127.0.0.1. This address is reserved for loopback testing, allowing network applications to communicate with themselves on the local machine.
Loopback addresses are special IP addresses that are used to test network interfaces or network applications on a local machine. These addresses are used to send network traffic to the same machine it originated from, allowing the machine to communicate with itself.
Available Loopback Addresses
Out of the given options, the correct answer is option 'B' - 127.0.0.1. Let's understand why:
Explanation
1. 0.0.0.0: This IP address is used to represent an invalid, non-routable address. It is often used to indicate the default route or an uninitialized address. However, it is not a loopback address.
2. 127.0.0.1: This is the loopback address commonly used for loopback testing. It is reserved specifically for loopback purposes and always refers to the local machine. When a network application sends traffic to this address, it is immediately received and processed by the same machine.
3. 255.255.255.255: This IP address is used to represent a broadcast address. It is used to send a message to all devices on the network, rather than a specific device. However, it is not a loopback address.
4. 0.255.255.255: This IP address is an invalid address because it starts with 0 and is not reserved for any specific purpose. It is not a loopback address.
Conclusion
In conclusion, the loopback address that can be used is 127.0.0.1. This address is reserved for loopback testing, allowing network applications to communicate with themselves on the local machine.
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Which of the following IP addresses can be used as (a) loop-back addre...
A loopback address is a special IP address whose IP address is between 127.0.0.1 to 127.255.255.255. It is reserved for loopback. It doesn't require a physical connection to a network.
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