1) In a computer network all devices necessarily should operate on Application Layer. False. Routers and bridges need not have application layer. 2) Find the odd man out SMTP,FTP, MP3, SNMP MP3 is the odd man out. This is because SMTP, FTP and SNMP are protocols while MP3 is a format for media files. 3) Amount of work a computer can do in a given period is called a)Task b)Throughput c)Context d)logic Throughput is the amount of work a computer can do in a given period of time.