Module 12 Review Quiz

Question 1

The NetworkManager or Systemd-networkd components must be installed on a Linux system in order to configure an IP address on a network interface. True or False?
a. True
b. False

Answer 1

b. False

Question 2

Which Windows program is often used to connect to a Linux server via SSH?
a. SSHD
b. Putty
c. Rdesktop
d. mstsc

Answer 2

b. Putty

Question 3

Standalone daemons are started on demand using xinetd. True or False?
a. True
b. False

Answer 3

b. False

Question 4

Which file stores the IP addresses of the DNS servers used to resolve host names if no DNS servers are specified within the network configuration file for the network interface?
a. /etc/hosts
b. /etc/host.conf
c. /etc/resolve
d. /etc/resolv.conf

Answer 4

d. /etc/resolv.conf

Question 5

To test DNS configuration by resolving a host name to an IP address, which command or commands can you use? (Choose all that apply.)
a. nslookup hostname
b. dig hostname
c. host hostname
d. resolve hostname

Answer 5

a. nslookup hostname
b. dig hostname
c. host hostname

Question 6

SSH encrypts all traffic that passes across the network, whereas telnet does not. True or False?
a. True
b. False

Answer 6

a. True

Question 6

Which two commands can be used to modify the route table on a Linux computer? (Choose two answers.)
a. route
b. ipconfig
c. ip
d. traceroute

Answer 6

a. route
c. ip

Question 6

What are two means available to resolve a host name to the appropriate IP address? (Choose two answers.)
a. DHCP
b. DNS
c. /etc/hosts
d. /etc/resolve.conf

Answer 6

b. DNS
c. /etc/hosts

Question 7

Which file holds the methods to be used and the order in which they will be applied for host name resolution?
a. /etc/nsswitch.conf
b. /etc/resolve.conf
c. /etc/hosts
d. /etc/dns.conf

Answer 7

a. /etc/nsswitch.conf

Question 8

You want to generate SSH keys for your user account and copy them to a remote computer to simplify future SSH authentication. What two commands can you use to perform these actions? (Choose two answers.)
a. ssh-keygen
b. ssh-add
c. ssh-copy-id
d. ssh-agent

Answer 8

a. ssh-keygen
c. ssh-copy-id

Question 9

Which of the following can be used to provide graphical remote administration? (Choose all that apply.)
a. telnet
b. ssh -X
c. ssh
d. VNC

Answer 9

b. ssh -X
d. VNC

Question 10

The daemons associated with network services listen for network traffic associated with a particular _____.
a. station
b. port
c. IP address
d. allocation number

Answer 10

b. port

Question 11

The IP address of 127.0.0.1 is also referred to as the _____.
a. local address
b. lookup address
c. local host
d. loopback address

Answer 11

d. loopback address

Question 12

The line that configures the host name for the computer at boot time can be found in /etc/hostname. True or False?
a. True
b. False

Answer 12

a. True

Question 13

Which commands can be used to display TCP/IP connections on your Linux system? (Choose all that apply.)
a. netstat -t
b. mtr
c. traceroute show
d. ss -t

Answer 13

a. netstat -t
d. ss -t

Question 14

Which of the following port numbers is associated with SSH?
a. 22
b. 137
c. 49
d. 23

Answer 14

a. 22

Question 15

Which file would you modify to permanently change the IP address of a network interface on a Fedora 28 system?

a. /etc/sysconfig/network-scripts/ifcfg-enp8s0

b. /etc/sysconfig/network

c. /etc/netplan/50-cloud-init.yaml

d. /etc/network/interfaces

Answer 15

a. /etc/sysconfig/network-scripts/ifcfg-enp8s0

Question 16

Before a computer can use a router, what configuration information must it be provided?
a. routing table
b. subnet mask
c. default gateway
d. default router

Answer 16

c. default gateway

Question 17

Which of the following are stand-alone daemons? (Choose all that apply.)
a. Apache (httpd)
b. Washington University FTP (in.ftpd)
c. telnet (in.telnetd)
d. DNS (named)

Answer 17

a. Apache (httpd)
d. DNS (named)

Question 18

Which of the following utilities can be used to check TCP/IP configuration and test network connectivity? (Choose all that apply.)
a. ifconfig
b. iwconfig
c. ping
d. nmcli

Answer 18

a. ifconfig
b. iwconfig
c. ping
d. nmcli