public static int factorial(int n) {
if (n >= 1 && n <=12) {
if (n == 1)
return 1;
else
return n * factorial(n - 1);
}
else
return -1;
}
Explanation: The factorial method takes a single integer n as input. It checks if n is within the range of 1 to 12. If it is, it further checks if n equals 1. If it is indeed 1, it returns 1 as the factorial. Otherwise, it recursively calls itself with n decreased by 1, multiplying the result by n. If n is outside this range, the method returns -1 indicating the input is invalid.
Answer:
Option (A) is the correct choice.
Explanation:
The situation describes an invalid boot disk error occurring during startup, indicating that the system fails to recognize the hard disk necessary for booting.
MBR / GPT is the partition layout that holds the essential code for system startup. Occasionally, the partition files that contain this code may become corrupt, causing an invalid boot disk error during the boot process.
Therefore, the most fitting answer is option (A).
The remaining choices are incorrect for these reasons:
- If the boot system malfunctions, it cannot produce an invalid boot disk error.
- If the files of the operating system are corrupted, the error will pertain to missing files.
- A device driver cannot influence the system's booting process.
Answer:
Port 3389 is designated for remote desktop access to graphical user interfaces.
The syntax for tracking ping traffic is " tcp.port eq 25 or icmp".
Explanation:
Wireshark serves as a network packet sniffer utilized for analyzing and troubleshooting packet transmission within a network.
The ping command is employed in networks to verify connectivity between two devices. It sends ICMP echo messages to an IP address and awaits their return if the connection exists. To filter ping traffic in Wireshark, the syntax " tcp.port eq 25 or icmp" is applied.
This port 3389 acts as a listening port for the Microsoft proprietary remote desktop protocol, allowing remote connections to graphical interfaces of systems running the RDP server.
