PPT Slide
True or False? [2.5*10 = 25]
T or F [0.5 points ]. Either way, state the correct explanation/reason. [2 pts]. Right ideas earn partial (or even full) credit.
????Cumulative acks are used in TCP because other types of ACKs or NAKs do not work for TCP.
No. Because other types of ACKs or NAKs are inefficient in terms of overhead, or providing reliability on the reverse channel.
????When a 900-byte packet is fragmented at a link whose MTU = 576 bytes, the fragment offset field in the second fragment is set to 68.
No. The offset is set to 552/8 = 69. 552 is the nearest multiple of 8 to 576-20 = 556.
? ??If variable length subnet masks (VLSM) are used in a network, it means that a single subnet can be configured with multiple masks.
No. It means that different subnets can have different length masks.