Answer:
Quality of service (QOS).
Explanation:
In recent computer networking, the convergence of voice, video and text data packet has been made possible. There is no need for a dedicated network for a particular type of packet.
QOS or quality of set is a service rendered to voice or audio packets in VoIP phones to enhance communication.
The email is a digital mailing system that can be used to send all three packets. It enjoys the QOS as voice packets. It is given high preference for transmission and uses the TCP protocol to transmit data reliably.
Answer:
public static boolean beginsWithZ(String word){
if(string == null || string.length() == 0)
return 0;
if(word.charAt(0) == 'Z' || word.charAt(0) == 'z')
return 1;
else
return 0;
}
Explanation:
This method is a boolean method, meaning it returns true if the string begins with Z or z and false otherwise. So:
The Java command charAt() let's you find the character at each position of the string, so i use it.
public static boolean beginsWithZ(String word){
if(string == null || string.length() == 0)
return 0;
if(word.charAt(0) == 'Z' || word.charAt(0) == 'z')
return 1;
else
return 0;
}
Answer: False
Explanation:
The given statement is false, as it is not compulsory that the default case is require in switch selection statement. If the default case are not properly specified in the statement then, there will be no execution occur in the switch selection statement.
It is sometimes good to have default case in switch selection statement, but it is not mandatory. The default case only executed when the correct case is present and none of the case matches in the given statement.
Answer: The correct answer is Mobile device
Explanation:
A Mobile device is any portable equipment that can be easily connected to an internet. Example of mobile devices include; smart phones, palmtop, smart watch and other computer gadgets. The use of touchscreen for input or output on mobile devices can not be overemphasized. Mobile devices are handy and can be used for making work easy. As such, in order to effectively use mobile devices, touchscreen can be primarily used.
