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Question 421 - 220-1102 discussion

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A systems administrator is troubleshooting network performance issues in a large corporate office.

The end users report that traffic to certain internal environments is not stable and often drops. Which of the following command-line tools can provide the most detailed information for investigating the issue further?

A.
ipconfig
Answers
A.
ipconfig
B.
arp
Answers
B.
arp
C.
nslookup
Answers
C.
nslookup
D.
pathping
Answers
D.
pathping
Suggested answer: D

Explanation:

Pathping is the best command-line tool to provide the most detailed information for investigating the network performance issue further. Pathping is a utility that combines the functions of ping and tracert, which are two other command-line tools that test network connectivity and latency.

Pathping sends packets to each router on the path to a destination and then computes results based on the packets returned from each hop. Pathping can show the route taken by the packets, the number of hops, the latency of each hop, and the packet loss percentage. This information can help the systems administrator identify where the network problem occurs and how severe it is. Ipconfig, arp, and nslookup are not as useful as pathping for this task. Ipconfig shows the configuration of the network interface card, such as IP address, subnet mask, and default gateway. Arp shows the mapping of IP addresses to MAC addresses in the local network. Nslookup queries DNS servers for

domain name resolution. Reference: Official CompTIA learning resources CompTIA A+ Core 1 and Core 2, page 21

CompTIA A+ Core 1 (220-1101) and Core 2 (220-1102) Cert Guide, page 457

asked 02/10/2024
Richard Villanueva
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