010-160 010-160 - LPI Linux Essentials Networking Basics Questions and Answers

Question 1

Which command displays the IP address and network interface configuration on a Linux system?

Accepted Answer

ip addr

Answer

ifconfig -a

Answer

netstat -i

Answer

route -n

Question 2

What command is used to test basic network connectivity by sending ICMP echo requests to a host?

Accepted Answer

ping

Answer

traceroute

Answer

netstat

Answer

curl

Question 3

Which file on a Linux system maps hostnames to IP addresses locally without using DNS?

Accepted Answer

/etc/hosts

Answer

/etc/hostname

Answer

/etc/resolv.conf

Answer

/etc/networks

Question 4

What does the acronym DHCP stand for in Linux networking?

Accepted Answer

Dynamic Host Configuration Protocol

Answer

Direct Host Control Protocol

Answer

Distributed Host Connection Protocol

Answer

Dynamic Hardware Configuration Program

Question 5

Which file specifies the DNS nameserver(s) that a Linux system should use for hostname resolution?

Accepted Answer

/etc/resolv.conf

Answer

/etc/hosts

Answer

/etc/nsswitch.conf

Answer

/etc/dns.conf

Question 6

What is the loopback IP address in IPv4 that always refers to the local machine?

Accepted Answer

127.0.0.1

Answer

192.168.0.1

Answer

0.0.0.0

Answer

255.255.255.255