Which utility is used to verify that another computer is online and connected to the network?
1. TRACERT
2. TELNET
3. >>PING
4. FTP
Explanation : The PING utility (for example, ping 208.160.120.17) is used to send test data packets to verify connectivity to another computer using ICMP. The Internet Control Message Protocol (ICMP) is part of the TCP/IP suite of protocols. It is an error-reporting protocol. PING sends an ICMP Echo Request to a target name (like computer2) or IP address. The resulting ICMP Echo Reply verifies that a TCP/IP configuration is set up properly and that the destination host is online and connected to the network.
TRACERT is also a TCP/IP utility. It uses ICMP echo requests to trace the route a data packet takes to its destination. The TRACERT command displays the hop count (also called the metric, the number of routers the signal must pass through to get to the destination), the time each hop takes (in milliseconds), the name of the computer or router passed through (optional), and the IP address of each router in the hop. TRACERT works with IP addresses, host names, and domain names. Like PING, TRACERT can verify a system is online, but that is not its primary purpose.
FTP (File Transfer Protocol) is a utility program that allows the bi-directional transfer (uploading and downloading) of files between two networked hosts. A small FTP client program runs on the remote computer and accesses a larger FTP server running on a host. FTP is not used to verify that another system is online.
The TELNET utility allows a computer to connect to a UNIX host by emulating a terminal (such as a DEC VT100) and establishing a remote command-line window. TELNET is not used to verify that another system is online.
Objective: Networks
