The statements that describe features of an ipv4 routing table on a router include:
- Directly connected interfaces will have two route source codes in the routing table.
- If a default static route is configured in the router, an entry will be included in the routing table with source code.
It should be noted that the IPv4 route table is important for listing entries that are in the routing table.
The routing table of every router is unique and can be stored in the read access memory (RAM) of the device.
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The question is asking us to swap the values of xp and yp while not changing where they point to. Setting xp equal to yp would not work because then we couldn't change yp since the value for xp was overwritten. We can use a third variable to swap them.
int zp = xp;
xp = yp;
yp= zp;
