Which of the following is related to TCP fast retransmission?

In BGP, exterior BGP (eBGP) propagates reachability information to all the routers within an AS. 

Consider an HTTP Web server using persistent connections. Suppose the server spawns a separate thread for each client that connects to the server. Then each of these spawned threads will use different server port numbers.

Which of the following is NOT a routing protocol?

Which of the following is NOT correct about ICMP?

As part of hierarchical routing, hot-potato routing does the following:

The value of “Receive Window” in TCP header never changes throughout the duration of the connection.

Which of the following is NOT included in the DHCP ACK message?

For the outgoing datagrams, NAT replaces both the internal source IP address and the port number to a globally unique NAT IP address and port number. 

Intra-AS routing focuses more on AS policy than performance.