9. In USB, identify which of the following statements is not true: a. During normal transmission USB hubs are transparent. b. A USB host contains either a USB controller or a root hub. c. There can only be one USB host. d. USB Endpoints can be sources or sinks of data. Reason for your ans answer: 10. In USB, which one of the following statements is true? a. A transfer consists of only one transaction at a time. b. A transaction can have up to 4 packets at a time. c. Isochronous transfers have guaranteed delivery times. d. Bulk transfers always include a status transaction Reason for your answer: 11. In the context of the difference in power consumption between SRAM and DRAM memory systems: a. A DRAM memory cell consumes less power than an SRAM memory cell. b. A DRAM memory chip consumes more power than an SRAM memory chip. C. SRAM cells don't need power for refreshing. d. All of the above. ason for your answer: 12. DRAM cells suffer from destructive readout. This means that: a. Every write cycle is followed by a read cycle. b. Every read cycle is followed by a write cycle. c. Access time is shorter for DRAM compared to SRAM. d. None of the above. Reason for your