Answer:
Revisiting "Build a Tower"
Recall in the last section how we made Karel make a tower of tennis balls. We told Karel to move() and turnLeft() and putBall() until we had a tower. At the end of the program, Karel was still at the top of the tower, like as in the picture below.
Stuck at top
Suppose that now we want Karel to come back down from the top of the tower. The first thing we need to do is get Karel facing in the right direction. One way to do this is to tell Karel
turnLeft();
turnLeft();
turnLeft();
And then tell Karel to
move();
move();
move();
back to the bottom of the tower.
However, telling Karel to turnLeft() three times is not very readable. That's a lot of writing when all we really want is to tell Karel to "turn right."
Explanation:
Hopefully it would help.
 
        
             
        
        
        
Answer:
nslookup ifconfig. 
Explanation:
The nslookup is used a number of times by network admins to troubleshoot DNS related problems. In addition, this command finds IP addresses and name servers of hosts. This utility command queries the DNS database tables from every host in a network. It then determines the host name and issues an IP. It sort of converts your domain name into an IP addresses. This command combined with ifconfig finds the correct DNS servers and assigns the correct DNS server IP.
 
        
             
        
        
        
the answer is they often contain biases :)
 
        
             
        
        
        
The organizational structure described here, which is known as vertical organizational structure, is also commonly identified as tall organizations. 
They usually have hierarchical structures, with the CEO being at the very top of the layer. Tall organization have multiple levels, compared to its counterpart, the flat organization or horizontal, which would only have one level.  
 
        
                    
             
        
        
        
Answer: c)Roaming user profiles
Explanation:Roaming user profiles are those profiles that creates the copy from the local profile and get stored in the network server. Roaming user profiles haves the function of getting logged in any computer system that the user is processing by getting downloaded.
It has the advantage of not creating profiles on every computer system that user wants to login .Thus, the correct answer is option(c) because other profiles mentioned in the option cannot copy the profile in the server and so do not have capability to be accessed in other computer system.