Network Setting Configuration

Question 1

ip

Answer 1

display ip address, subnet mask, MAC address settings

Question 2

ifconfig

Answer 2

display current ip address information for each NIC recognized by the system

Question 3

iwconfig

Answer 3

provide wireless NIC configurations and settings

Question 4

nmcli

Answer 4

view and manage network settings

Question 5

ethtool

Answer 5

manage NIC driver and network configurations

Question 6

hostnamectl

Answer 6

view systems hostname

Question 7

netcat

Answer 7

test connectivity and send data across network connections

Question 8

iftop

Answer 8

display bandwidth usage information

Question 9

traceroute

Answer 9

report the network path between the source and destination computers

Question 10

tracepath

Answer 10

report the network path between the source and destination computers

Question 11

resolvectl

Answer 11

manually query name resolution services

Question 12

dig

Answer 12

test name resolution

Question 13

nslookup

Answer 13

gather information about and test name resolution

Question 14

host

Answer 14

gather information about and test name resolution

Question 15

whois

Answer 15

display hostname, FQDN, ip, and other information about a given host

Question 16

arp

Answer 16

discover information about known MAC addresses

Question 17

iptables

Answer 17

manage packet filtering and stateful firewall functions

Question 18

firewall-cmd

Answer 18

configure firewall by querying and modifying zones or services as desired

Question 19

ufw

Answer 19

configure nftables or iptables

Question 20

ping

Answer 20

generate a response request form the sending computer, which should receive a reply from the destination computer

Question 21

mtr

Answer 21

test network connection quality and packet lost

Question 22

netstat

Answer 22

gater information about TCP connections to the system

Question 23

ss

Answer 23

gater information about TCP connections and display in a simple output

Question 24

tcpdump

Answer 24

determine traffic type and content

Question 25

nmap

Answer 25

report extremely detailed information about a network

Question 26

md5sum

Answer 26

calculate the hash value of a file with the MD5 hash function

Question 27

sha#sum

Answer 27

calculate the hash value of a file with the SHA hash function

Question 28

chcon

Answer 28

temporarily change the SELinux context of a resource

Question 29

apparmor_status

Answer 29

display the current status of AppArmor profiles

Question 30

aa-complain

Answer 30

place an AppArmor orfile in complain mode

Question 31

aa-enforce

Answer 31

place an AppArmor orfile in enforce mode

Question 32

aa-disable

Answer 32

Disable an AppArmor profile, unloading it from the kernel

Question 33

aa-unconfirmed

Answer 33

list processes with open network sockets that don’t have an AppArmor profile loaded

Question 34

Iftop