(Solved): Question IV: Answer the following questions [20 marks]. Q4.1: Look at the scenario below, where Alic ...
Question IV: Answer the following questions [20 marks]. Q4.1: Look at the scenario below, where Alice sends an email to Bob. [5 marks] . a) At point 2 in the figure, what protocol is being used? [1 mark] b) At point 4 in the figure, what protocol is being used? [1 mark]. c) Is SMTP a 'push' or 'pull' protocol? [1 mark]. d) List two protocols that can be used at Point 6. [1 mark] - e) What port does SMTP use? [1 mark]. Q4.2: A combination of IP address and subnet mask is given below. Find the network prefix and the mask length. Select the correct answer in the CIDR address format. [2 masks]. \table[[,In binary],[IP address: 217.114.49.5,11011001.01110010 .00110001 .00000101],[Subnet mask: 255.255 .252 .0,11111111.11111111 .11111100 .00000000]] Q4.2: A combination of IP address and subnet mask is given below. Find the network prefix and the mask length. Select the correct answer in the CIDR address format. [2 masks] \table[[,In binary],[IP address: 217.114.49.5,11011001.01110010 .00110001 .00000101],[Subnet mask: 255.255 .252 .0,11111111.11111111 .11111100 .00000000]] A.
217.114.(48.0)/(22)B.
217.114.(49.0)/(22)C.
255.255.(252.0)/(24). D.
217.114.(49.0)/(8).
