  We study the periodic cosmic transit behavior of accelerated universe in the
framework of symmetric teleparallelism. The exact solution of field equations
is obtained by employing a well known deceleration parameter (DP) called
periodic varying deceleration parameter (PVDP), $q = m cos kt-1$. The viability
and physical reliability of the DP are studied by using the observational
constraint. The dynamics of periodicity and singularity are addressed in
details with respect to time and redshift parameter. Several ECs are discussed
in this setting.
