Problem Statement

Assume a network service requires fast, connectionless communication for simple query-response interactions, where the loss of an occasional packet is acceptable but retransmissions will introduce unacceptable delays. Which protocol is best suited for this type of service? HTTP FTP DNS SMTP In a computer system, data is transferred between the CPU and peripheral devices through a shared bus controlled by device controllers. To improve data transfer speed and reduce latency, the system incorporates controllers with dedicated high-speed buffers. Which of the following device controllers is most suitable for this purpose? Wireless controller USB (Universal Serial Bus) controller SATA (Serial Advanced Technology Attachment) controller Ethernet controller A startup is concerned about unpredictable expenses due to variable cloud usage. Which cloud feature should they implement to manage and predict costs more accurately? Auto-scaling Reserved instances Load balancing Content delivery network