His younger sister, Tisha, found him staring blankly at his laptop screen.
Three months later, Rafi walked into the Pearson VUE test center in Motijheel for the third time. The proctor, a stern man, handed him the scratchboard. As the first simulation question appeared—a complex multi-area OSPF configuration—Rafi closed his eyes for a second. ccna bangla book pdf
His heart skipped a beat. He opened it.
"Still no luck, bhai?" she asked.
For the first time, concepts clicked not as foreign jargon, but as familiar stories. His younger sister, Tisha, found him staring blankly