84 Tools · Diagnostics questions from the Networking bank, written for Indian campus drives and tech interviews. Every question has a verified answer and an AI-tutor explanation on placd.
Free to start: the 2-minute IT readiness check — six questions and a result.
A.send ICMP echo requests to test reachability and round-trip time
B.display the routing table on Windows
C.display the local system's network name
D.display IP configuration of interfaces on Windows
Answer + AI explanation with Pro
2. Which command will send ICMP echo requests to test reachability and round-trip time?
Junior
A.ping host
B.nmap host
C.curl -v url
D.ss -tan
Answer + AI explanation with Pro
3. Which statement is correct?
Junior
A.ping host — make an HTTP request showing verbose headers and connection details
B.ping host — measure achievable TCP or UDP throughput to a server
C.ping host — send ICMP echo requests to test reachability and round-trip time
D.ping host — trace the path using TCP SYN probes instead of UDP to bypass filters that block UDP
Answer + AI explanation with Pro
4. What does traceroute host do?
Junior
A.display or configure network interfaces on legacy Unix systems
B.display IP configuration of interfaces on Windows
C.show the network hops/path to a destination
D.send ICMP echo requests to test reachability and round-trip time
Answer + AI explanation with Pro
5. Which command will show the network hops/path to a destination?
Junior
A.ss -tan
B.hostname
C.traceroute host
D.tcpdump -i eth0
Answer + AI explanation with Pro
6. Which statement is correct?
Junior
A.traceroute host — measure achievable TCP or UDP throughput to a server
B.traceroute host — show the neighbor (ARP/NDP) table on Linux
C.traceroute host — show the network hops/path to a destination
D.traceroute host — list listening sockets with protocol, port, and owning process
Answer + AI explanation with Pro
7. What does nslookup name do?
Junior
A.trace the path using TCP SYN probes instead of UDP to bypass filters that block UDP
B.query DNS to resolve a hostname to an IP address
C.measure achievable TCP or UDP throughput to a server
D.scan a host and probe open ports to identify service versions
Answer + AI explanation with Pro
8. Which command will query DNS to resolve a hostname to an IP address?
Junior
A.traceroute -T host
B.nslookup name
C.dig +short name
D.ping host
Answer + AI explanation with Pro
9. Which statement is correct?
Junior
A.nslookup name — display or modify the Linux kernel routing table
B.nslookup name — query DNS to resolve a hostname to an IP address
C.nslookup name — scan a host and probe open ports to identify service versions
D.nslookup name — show the neighbor (ARP/NDP) table on Linux
Answer + AI explanation with Pro
10. What does ipconfig do?
Junior
A.display IP configuration of interfaces on Windows
B.capture and decode packets from the command line using the Wireshark engine
C.combine ping and traceroute to continuously report per-hop loss and latency
D.perform a flexible DNS lookup showing detailed query and answer sections
Answer + AI explanation with Pro
11. Which command will display IP configuration of interfaces on Windows?
Junior
A.ipconfig
B.ipconfig /flushdns
C.dig +trace name
D.dig +short name
Answer + AI explanation with Pro
12. Which statement is correct?
Junior
A.ipconfig — show and manage IP addresses on Linux interfaces
B.ipconfig — measure achievable TCP or UDP throughput to a server
C.ipconfig — display IP configuration of interfaces on Windows
D.ipconfig — query DNS to resolve a hostname to an IP address
Answer + AI explanation with Pro
13. What does ifconfig do?
Junior
A.write captured packets to a file for later analysis
B.trace the path using TCP SYN probes instead of UDP to bypass filters that block UDP
C.display or configure network interfaces on legacy Unix systems
D.send exactly four ICMP echo requests then stop
Answer + AI explanation with Pro
14. Which command will display or configure network interfaces on legacy Unix systems?
Junior
A.ifconfig
B.dig +short name
C.ping host
D.iperf3 -c host
Answer + AI explanation with Pro
15. Which statement is correct?
Junior
A.ifconfig — query DNS to resolve a hostname to an IP address
B.ifconfig — display the local system's network name
C.ifconfig — display or configure network interfaces on legacy Unix systems
D.ifconfig — show and manage IP addresses on Linux interfaces
Answer + AI explanation with Pro
16. What does dig name do?
Mid
A.perform a flexible DNS lookup showing detailed query and answer sections
B.query or set NIC settings like speed, duplex, and link status
C.capture and display packets on an interface for analysis
D.show the network hops/path to a destination
Answer + AI explanation with Pro
17. Which command will perform a flexible DNS lookup showing detailed query and answer sections?
Mid
A.ifconfig
B.mtr host
C.tcpdump -i eth0
D.dig name
Answer + AI explanation with Pro
18. Which statement is correct?
Mid
A.dig name — display or configure network interfaces on legacy Unix systems
B.dig name — measure achievable TCP or UDP throughput to a server
C.dig name — perform a flexible DNS lookup showing detailed query and answer sections
D.dig name — display TCP socket statistics quickly on modern Linux
Answer + AI explanation with Pro
19. What does ip addr do?
Mid
A.send ICMP echo requests to test reachability and round-trip time
B.show and manage IP addresses on Linux interfaces
C.trace the path using TCP SYN probes instead of UDP to bypass filters that block UDP
D.display the routing table on Windows
Answer + AI explanation with Pro
20. Which command will show and manage IP addresses on Linux interfaces?
Mid
A.nmap -sV host
B.dig +trace name
C.ip addr
D.dig name
Answer + AI explanation with Pro
21. Which statement is correct?
Mid
A.ip addr — make an HTTP request showing verbose headers and connection details
B.ip addr — show and manage IP addresses on Linux interfaces
C.ip addr — clear the local DNS resolver cache on Windows
D.ip addr — send ICMP echo requests to test reachability and round-trip time
Answer + AI explanation with Pro
22. What does ip route do?
Mid
A.show and manage IP addresses on Linux interfaces
B.display or modify the Linux kernel routing table
C.send ICMP echo requests to test reachability and round-trip time
D.capture and decode packets from the command line using the Wireshark engine
Answer + AI explanation with Pro
23. Which command will display or modify the Linux kernel routing table?
Mid
A.dig +short name
B.ss -tan
C.dig +trace name
D.ip route
Answer + AI explanation with Pro
24. Which statement is correct?
Mid
A.ip route — display the local system's network name
B.ip route — display or modify the Linux kernel routing table
C.ip route — capture and decode packets from the command line using the Wireshark engine
D.ip route — show and manage IP addresses on Linux interfaces
Answer + AI explanation with Pro
25. What does netstat -tulpn do?
Mid
A.scan a host for open ports and running services
B.display the local system's network name
C.display the routing table on Windows
D.list listening sockets with protocol, port, and owning process
Answer + AI explanation with Pro
26. Which command will list listening sockets with protocol, port, and owning process?
Mid
A.traceroute -T host
B.arp -a
C.netstat -tulpn
D.iperf3 -c host
Answer + AI explanation with Pro
27. Which statement is correct?
Mid
A.netstat -tulpn — capture and decode packets from the command line using the Wireshark engine
B.netstat -tulpn — list listening sockets with protocol, port, and owning process
C.netstat -tulpn — follow the DNS delegation from the root servers down to the authoritative answer
D.netstat -tulpn — display TCP socket statistics quickly on modern Linux
Answer + AI explanation with Pro
28. What does ss -tan do?
Mid
A.show the network hops/path to a destination
B.trace the path using TCP SYN probes instead of UDP to bypass filters that block UDP
C.display TCP socket statistics quickly on modern Linux
D.display or modify the Linux kernel routing table
Answer + AI explanation with Pro
29. Which command will display TCP socket statistics quickly on modern Linux?
Mid
A.ss -tan
B.mtr host
C.netstat -tulpn
D.ip addr
Answer + AI explanation with Pro
30. Which statement is correct?
Mid
A.ss -tan — display TCP socket statistics quickly on modern Linux
B.ss -tan — display or modify the Linux kernel routing table
C.ss -tan — capture and decode packets from the command line using the Wireshark engine
D.ss -tan — query or set NIC settings like speed, duplex, and link status
Answer + AI explanation with Pro
Showing 30 of 84 Tools · Diagnostics questions — the full set, with answers, explanations and an AI tutor on every question, is inside.
Free to start
Start with a free readiness check
Sign up free for the 2-minute IT readiness check and a scored result. Answers, explanations and the AI tutor on every Tools · Diagnostics question come with Pro.