Which statement describes the ping and tracert commands?
Ping shows whether the transmission is successful; tracert does not.
Tracert shows each hop, while ping shows a destination reply only.
Both ping and tracert can show results in a graphical display.
Tracert uses IP addresses; ping does not.
The Correct Answer and Explanation is:
Correct Answer: Tracert shows each hop, while ping shows a destination reply only.
Explanation:
The ping and tracert (or traceroute on Linux/Mac) commands are commonly used network diagnostic tools. Although they are both used to test network connectivity, they serve different purposes and provide different types of information.
Ping Command:
The ping command is used to check if a particular device (host) on a network is reachable. When a user runs ping, it sends ICMP (Internet Control Message Protocol) echo request packets to the destination address. If the destination is reachable and configured to respond, it sends back echo replies. The primary data provided by the ping command includes:
- Confirmation of connectivity to the target device.
- Round-trip time (latency) for the packets.
- Packet loss information, if any.
Key Point: Ping only tells you if a device is reachable and how long it takes for the packets to travel to and from that device. It does not show the route the packets take.
Tracert Command:
The tracert command is used to determine the path data takes from your computer to a specified destination. It works by sending ICMP packets with gradually increasing Time To Live (TTL) values. Each router along the way decrements the TTL and returns an error message when the TTL reaches zero. By analyzing these error messages, tracert identifies:
- The IP address or hostname of each router (hop) the packet passes through.
- The number of hops to reach the destination.
- The time it takes to reach each hop.
Key Point: Tracert maps the route data takes across the network and provides detailed hop-by-hop latency statistics.
Summary of the Answer:
- Ping checks whether the destination is reachable and measures round-trip time.
- Tracert provides a detailed route, listing each hop along the way to the destination.
- Therefore, the most accurate statement is:
“Tracert shows each hop, while ping shows a destination reply only.”