Answer:
A Subnet Mask
Explanation:
A Subnet mask is used by the TCP/IP protocol to determine whether a host is on the local Subnet or on a remote network.
In TCP/IP, the parts of the IP address that are used as the network and host addresses are not fixed, so the destination host address 192.168.10.100 cannot be determined by the network host (192.168.10.200) unless it has more information. This information is supplied in another 32-bit number called a Subnet mask.
I feel it is C, but I am not sure if it is correct, I can only apologize if it is wrong.
Answer:
b. the same data type
Explanation:
Any number of variables can be declared in a statement as long as the variables have the same data type. For example:
1) int a,b,c,d,e;
Here each of the declared variables a,b,c,d,e have the type int.
2) char p,q,r,s,t,u,v,w;
In this case variables p to w all have the type char.
3) float x,y,z;
x,y and z are all of type float.