A company has a legacy network in which all devices receive all messages transmitted by a central wire.Which network topology is described?
Answer(s): C
A Bus topology is a network setup in which all devices share a single communication channel (central wire), and data is transmitted along this cable. Each device listens for data but only processes packets addressed to it. This topology was widely used in older Ethernet networks.Star topology uses a central switch or hub, not a shared wire.Point-to-point topology involves a direct link between two devices, not multiple devices sharing a medium.Ring topology connects each device to two adjacent devices in a circular path, not a single shared bus.
A person is troubleshooting a network issue and needs to see details about network adapters and their settings.Which Windows command should be used?
Answer(s): A
The ipconfig command in Windows provides details about a computer's network adapters, including IP addresses, subnet masks, default gateways, and DNS settings. It is particularly useful for troubleshooting connectivity issues.traceroute (or tracert in Windows) is used to trace the path packets take to a destination.nslookup is used for querying DNS records.netstat provides details about active network connections and listening ports, but not adapter configurations.
In the process of setting up a Linux-based network system, a technician needs to determine if there is connectivity to a hostname.Which command should be used?
The ping command in Linux is used to check network connectivity to a specific hostname or IP address. It sends ICMP Echo Request packets and measures response times.nslookup is used for DNS lookups, not connectivity testing.ifconfig displays network interface configurations but does not test connectivity.dig is used for detailed DNS queries.
A person is troubleshooting a network issue and needs to see a list of all active network connections.Which Linux command should be used?
Answer(s): B
The netstat command in Linux displays active network connections, listening ports, and network statistics. It is useful for diagnosing network issues and identifying open connections.nslookup is for DNS queries.dig provides DNS information, not network connection status.ifconfig shows network interface details but does not list active connections.
Users of a network have been experiencing issues. In the course of troubleshooting, an administrator wants to test DNS resolution against a host.Which command in Linux should be used for this purpose?
The dig command in Linux is used for DNS troubleshooting. It queries DNS records and provides detailed information about domain name resolutions.traceroute tracks the path packets take to a destination but does not diagnose DNS.netstat lists active connections, not DNS records.ifconfig is used for managing network interfaces.
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