ACE Test series

Question

In the network 202.10.4.230/27  the last but one valid IP which can be assigned to a host from the last subnet is

___________.

Comments

@Gupta731 why you answered for 2nd last it is not mentioned in the question. @Shadan Karim is 253 correct I think it should be 254 (11111110)??

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@Peeyush Pandey it is given in question that you have to find last but one, which means second last host. You need to interpretate the question statement properly :)

@Shadan Karim The first octet is 202 which is of class C. Go through the range of IP addresses in diff classes.

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I read it, it is not a commonly used phrase hope gate authorities are not going to use such Shashi Tharoor level English. :)

And yes 253 is correct last but one means second last, last but two means 3rd last and so on.

Answer 1

202.10.4.230/27

every octet made up of bits

8+8+8 = 24

BUT IN THE ABOVE QUESTION IT IS GIVEN 27 AND HENCE FROM THE LAST OCTET 3 BITS ARE GIVEN

230 IN BINARY 111(00110) MAKE EVRY BIT ONE IN THE BRACKET THAT WILL BE THE BROADCAST ADDRESS

1(111111) - 254 THIS IS LAST HOST

SO 202.104.253 IS LAST BUT ONE HOST