31. Demodulation is the process of

A. converting digital signals to analog signals
B. converting analog signals to digital signals
C. combining many low speed channels into one high speed channel
D. dividing the high-speed signals into frequency bands
E. None of the above

32. Which of the following statement is incorrect?

A. The Addresses Resolution Protocol, ARP, allows a host to find the physical address of a target host on the same physical network, given only the target IP address.
B. The sender’s IP – to- physical address binding is included in every ARP broadcast; receivers update the IP-to-Physical address binding information in their cache before processing an ARP packet.
C. ARP is a low-level protocol that hides the underlying network physical addressing, permitting us to assign IP-addresses of our choice to every machine.
D. All of the above
E. None of the above

33. You are working with a network that has the network ID 192.168.10.0. What subnet should you use that supports up to 25 hosts and a maximum number of subnets?

A. 255.255.255.192
B. 255.255.255.224
C. 255.255.255.240
D. 255.255.255.248
E. 255.255.255.252

34. Which of the following best illustrates the default subnet mask for a class A,B, and C Network?

A. 0.0.0.0, 0.0.0.1, 0.0.1.1
B. 255.255.255.0, 255.255.0.0, 255.0.0.0
C. 255.0.0.0, 255.255.0.0, 255.255.255.0
D. 255.255.0.0, 255.255.255.0, 255.255.255.255
E. None of the above

35. Modulation is the process of

A. converting analog signals to digital signals
B. converting digital signals to analog signals
C. Multiplexing various signals into high speed line signals
D. performing data encryption.