<span>If a user name can have seven letters (with no distinction between upper and lower case), and if a letter can be repeated, then the maximum number of names is 26x26x26x26x26x26x26, or 8,031,810,176. That is, slightly more than eight billion names are possible.</span>
Answer:
True
Explanation:
Some collection of classes or library functions grouped as one name space. A class which belongs to one namespace is different from the class which belongs to another namespace. we can identify a class uniquely with it's namespace .
for ex:
in c#.net
using system;
System.IO;
here System is the namespace which contains class IO
namespace contains any number of classes . In one namespace we can't define two classes with same Name. We can define two classes with same name in different namespaces
Answer:
Im unclear exactly what it is saying but i think its 2
Answer:
B) wireless local area network (WLAN)
Explanation:
WLAN which fully meaning is WIRELESS LOCAL AREA NETWORK is a network provider that enables two or more mobile phone user , desktop or computer user to connect and have access to the internet by simply connecting to the local area wireless network and this type of wireless network are more cheaper to install.
Example of where WIRELESS LOCAL AREA NETWORK can be found are : School building, Office building, School campus, home, among others.
Answer: much too long to write here: see attached
Explanation: