Network Command Utilities and Functions

The video tutorial covers various command-line tools used for network troubleshooting and analysis. It explains the ping command for testing reachability, ipconfig and ifconfig for IP configuration, nslookup and dig for DNS lookups, and traceroute for tracing network paths. It also discusses ARP for resolving MAC addresses, netstat for viewing network connections, hostname for identifying the current host, and routing table commands. Additionally, it covers telnet for checking open ports, tcpdump for packet capturing, and Nmap for network scanning. The tutorial highlights the importance of these tools in diagnosing and resolving network issues.

What is the primary purpose of the ping command?

• To monitor network bandwidth

• To test network reachability

• To encrypt network traffic

• To configure network settings

Which command is used in Windows to view detailed IP configuration?

• ifconfig

• ping -t

• netstat -a

• ipconfig /all

What is the main function of the traceroute command?

• To encrypt data packets

• To test DNS server responses

• To configure network interfaces

• To map the path packets take through a network

Which command can be used to view the ARP cache on a local machine?

• arp -a

• netstat -r

• tracert -a

• ping -a

What does the netstat -n command display?

• Open ports on a device

• DNS server configurations

• Network interface statistics

• IP addresses without domain names

What is a key limitation of using the telnet command?

• It requires a graphical user interface

• It cannot connect to remote devices

• It sends data in clear text, making it insecure

• It only works on Linux systems

Which utility is used for capturing packets from the command line?

• nslookup

• tracert

• ping

• tcpdump

What is the primary function of the Nmap utility?

• To configure network interfaces

• To test DNS server responses

• To encrypt network traffic

• To scan networks for open ports and services

Which command provides terminal access to a remote device but is considered insecure?

• telnet

• ssh

• scp

• ftp

What does the tcpdump utility allow you to do?

• Monitor network bandwidth

• Configure network interfaces

• Encrypt network traffic

• Capture and analyze network packets