Applied Test Series: CN

Question

Which of the following options is/are false?

1. If the maximum value sequence number in the GBN is n, then the maximum sender window is n-1.

2. The size of fragments in IPv4 packet fragmentation payload is always divisible by 8 except the last fragment.

3. DF bit is called do not fragment bit and its value is 1 when there is no    fragmentation.

4. Identification number for every fragment of the IPV4 packet is different.

They have provided the ans as 1, 3 and 4. Can someone explain me how option 3 is false?

Comments

DF Bit $\overset{0}{\rightarrow}$ Fragmentation

DF Bit $\overset{1}{\rightarrow}$ No Fragmentation

---

So Applied people gave wrong ans. it should be Option A and D which are false right. C is true.

Answer 1

Only option D is false bcoz all fragments are the same I'd nos