Routing
September 7, 2024Routing
September 7, 2024IP-Header
| Question 1 |
Every host in an IPv4 network has a 1-second resolution real-time clock with battery backup. Each host needs to generate up to 1000 unique identifiers per second. Assume that each host has a globally unique IPv4 address. Design a 50-bit globally unique ID for this purpose. After what period (in seconds) will the identifiers generated by a host wrap around?
| 256 | |
| 257 | |
| 258 | |
| 259 |
Question 1 Explanation:
Given that each host has a globally unique IPv4 Address and we have to design 50 bit unique Id. So, 50 bit in the sense (32 + 18). So, It is clearly showing that IP Address (32 bit) followed by 18 bits.
1000 unique Ids ⇒ 1Sec
218 unique Ids ⇒ 218/1000 = 28 = 256
1000 unique Ids ⇒ 1Sec
218 unique Ids ⇒ 218/1000 = 28 = 256
Correct Answer: A
Question 1 Explanation:
Given that each host has a globally unique IPv4 Address and we have to design 50 bit unique Id. So, 50 bit in the sense (32 + 18). So, It is clearly showing that IP Address (32 bit) followed by 18 bits.
1000 unique Ids ⇒ 1Sec
218 unique Ids ⇒ 218/1000 = 28 = 256
1000 unique Ids ⇒ 1Sec
218 unique Ids ⇒ 218/1000 = 28 = 256
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