ISRO CSE 2007 | Question: 73

Question

Range of IP Address from $224.0.0.0$ to $239.255.255.255$ are

• A. Reserved for loopback
• B. Reserved for broadcast
• C. Used for multicast packets
• D. Reserved for future addressing

Comments

1–126 → Class A
127 → Reserved for loopback
128–191 → Class B
192–223 → Class C
224–239 → (Class D)  - Used for multicast packets
240–255 → Class E     - Reserved for future addressing
255.255.255.255 → Broadcast

Answer 1

class D(224.0.0.0-239.255.255.255) reserved for multicast  so ans should be C

Answer 2

Class D addresses are 32-bit network addresses, meaning that all the values within the range of 224.0.0.0 – 239.255.255.255 are used to uniquely identify multicastgroups. There are no host addresses within the Class D address space, since all the hosts within a group share the group's IP address for receiver purposes

https://www.paessler.com/info/ip_address_basics_ii

Answer 3

http://www.vlsm-calc.net/ipclasses.php

(C) will be answer

Answer 4

Octet 224 corresponds to 1110 which corresponds to Class D which is used for Multicast netwroking.

Option C

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Bonus: Octet 1111 corresponds to Class E which is reserved for experimental purposes.

Answer 5

Reserved for future addressing