Answer:
D. BGP
Explanation:
In order to exchange routing information with another AS (Autonomous Systems) only, exterior routers use an exterior routing protocol, like BGP (Border Gateway Protocol) or EGP (Exterior Routing Protocol).
BGP is an application-layer protocol in the TCP/IP suite, that uses a well-known TCP port (179) in order to deliver information reliably.
It is important to note that in order to exchange routing data within his own AS, the router uses an interior routing protocol, like OSPF.
A Would be the answer, Sir.!
#1) If a function is legally prototyped to return an integer value, it can return a structure member that is an integer data type.
Answer: True. Any method that is not declared void must contain a return statement with a corresponding return value. The data type of the return value must match the method's declared return type; you can't return an integer value from a method declared to return a boolean.
The answer is : 2001:DB80:1470::200
A double colon ( :: ) can replace any single, contiguous string of one or more 16-bit segments (hextets) which is consist of all 0s, and it can only be used once per IPv6 address. Therefore,any leading 0s (zeros) in any 16-bit section or hextet can be omitted.