Consider the network shown below. Suppose AS3 and AS2 are running OSPF for their intra-AS routing protocol. Suppose AS 1 and AS4 are running RIP might for their intra-AS routing protocol. Suppose eBGP and iBGP are used for the peering inter-AS routing protocol. Initially suppose there is no physical link between specification. AS2 and AS4.
a. Router 3c learns about prefix x from which routing protocol: OSPF, RIP, eBGP, or iBGP?
b. Router 3a learns about x from which routing protocol?
c. Router 1 c learns about x from which routing protocol?
d. Router Id learns about x from which routing protocol?

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4b 4c 3c AS4 2c За 3b 2a 1c 2b 1b AS3 1a AS2 1d AS1