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Questions and Answers
What is the purpose of the network part of an IP address?
What is the purpose of the network part of an IP address?
- Determine the class of the IP address
- Identify the specific host within the network
- Represent the physical (link-layer) network to which the devices are connected (correct)
- Identify the loopback interface
What is the purpose of limited broadcast in IP addressing?
What is the purpose of limited broadcast in IP addressing?
- Identify the loopback interface
- Identify all the hosts in a local network (correct)
- Identify all the hosts in a specific network
- Communicate with itself for debugging purposes
What was used in the past to divide the network part from the host part in IP addressing?
What was used in the past to divide the network part from the host part in IP addressing?
- CIDR notation
- IP addressing classes (correct)
- Subnet masks
- Limited broadcast addresses
How many available networks are there in Class B IP addressing?
How many available networks are there in Class B IP addressing?
What does the loopback interface in IP addressing allow a host to do?
What does the loopback interface in IP addressing allow a host to do?
What is the purpose of the network part of an IP address?
What is the purpose of the network part of an IP address?
What does the loopback interface in IP addressing allow a host to do?
What does the loopback interface in IP addressing allow a host to do?
How many available networks are there in Class B IP addressing?
How many available networks are there in Class B IP addressing?
What is the purpose of limited broadcast in IP addressing?
What is the purpose of limited broadcast in IP addressing?
What was used in the past to divide the network part from the host part in IP addressing?
What was used in the past to divide the network part from the host part in IP addressing?
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Study Notes
Network Part of an IP Address
- Identifies the specific network within a larger routing structure.
- Ensures data packets are sent to the correct destination network.
Limited Broadcast in IP Addressing
- Allows a message to be sent to all hosts on the local network segment.
- Uses the broadcast address 255.255.255.255 for this purpose.
- Facilitates communication when the specific IP addresses of hosts are unknown.
Division of Network and Host Parts in IP Addressing
- Historically, the separation used subnet masks and classes (A, B, C).
- Classful addressing defined fixed boundaries between network and host portions.
Class B IP Addressing
- Supports a total of 16,384 available networks.
- Each Class B network can contain up to 65,534 hosts, promoting scalability.
Loopback Interface in IP Addressing
- Designated IP address 127.0.0.1 is used for testing and diagnostics.
- Allows a host to communicate with itself, enabling software and protocols to be tested without requiring a physical network connection.
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