单项选择题 A technician is attempting to use a command line prompt to continuously ping a remote server to check availability and reliability of the connection. Which of the following provides the ping command needed to continuously ping the system?（）

单项选择题 If a technician needs to convert a hard drive from Basic to Dynamic, which of the following utilities would the technician use?（）

单项选择题 Which of the following utilities will a technician use to determine how many partitions a hard drive has?（）