This study discusses inflationary models supported by Cosmic Microwave Background (CMB) measurements from Wilkinson Microwave Anisotropy Probe (WMAP), such as the Lambda Cold Dark Matter model, also referred to be the modern standard model of cosmology. The prevailing Big Bang model is complemented by the inflationary model, which solves monopole, flatness, and horizon paradoxes and makes important predictions about the geometry of the universe and the Gaussianity of the primordial spectrum of density fluctuations. The goal of WMAP is to measure key parameters including the Hubble constant, cosmological density parameter, anisotropy spectral index, and others in order to investigate the structure, evolution, and composition of the universe. The inflationary concept, especially the ΛCDM model, is further strengthened by the CMB data from WMAP, which agrees well with it.
