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CSCI463: Introduction to Computer Networks-2025FALL-LECT-02
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If an organization has been allocated 200.23.16.0/20, how many /24 subnets can they create?
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In TCP, a cumulative acknowledgment acknowledges only the last received packet with no existing gaps
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30. A network has 250 hosts per subnet. What is the smallest CIDR mask that can accommodate this?
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9. If α=0.1, the current Estimated RTT is 100 ms, and the Sample RTT is 200 ms, what is the new Estimated RTT?
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If the receiver advertises an rwnd of 8 KB and the congestion window is 4 KB, what is the effective window size?
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What happens in TCP when packet loss is detected via triple duplicate ACKs?
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What does a NAT router do to outgoing datagrams?
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If a router receives a packet for 192.168.10.15 with a /24 mask, which subnet is it in?
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A TCP sender has a congestion window (cwnd) of 16 KB and a round-trip time (RTT) of 50 ms. What is the TCP sending rate?
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A TCP sender sends a packet with a sequence number of 4000 and 1000 bytes of data. What will be the sequence number of the next packet?
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