what is the default administrative distance assigned to all ospf routes
Administrative distance On Cisco routers, routes issued by OSPF have a lower default administrative distance than routes issued by the Routing Information Protocol. By default, OSPF has a default administrative distance of 110 and RIP has a default administrative of 120.
Observable universe According to calculations, the comoving distance (current proper distance) to particles from which the CMBR was emitted, which represent the radius of the visible universe, is about 14.0 billion parsecs (about 45.7 billion light years), while the comoving distance to the edge of the observable universe is about 14.3 billion parsecs (about 46.6 billion light years),[13] about 2% larger. The radius of the observable universe is therefore estimated to be about 46.5 billion light-years[14][15] and its diameter about 28.5 gigaparsecs (93 billion light-years 8.8×1023 kilometres or 5.5×1023 miles).[16] The total mass of ordinary matter in the universe can be calculated using the critical density and the diameter of the observable universe to be about 1.5×1053 kg.[17]