CompTIA Linux+ Chp12-Homework

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

/etc/nsswitch.conf

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

/etc/resolv.conf

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

22

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

Putty

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. resolvectl query hostname

dig hostname resolvectl query hostname nslookup hostname host hostname

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

loopback address

Which of the following utilities can be used to view and configure a network renderer? (Choose all that apply.) a. ifconfig b. ip c. networkctl d. nmcli

networkctl nmcli

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

port

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

ssh -X VNC

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

ssh-keygen ssh-copy-id

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)

DNS (named) Apache (httpd)

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

ss -t netstat -t

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

route ip

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

default gateway

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

False

Which file would you modify to permanently change the IP configuration of a network interface on a modern Fedora Workstation system? a. /etc/NetworkManager/system-connections/name.nmconnection b. /etc/sysconfig/network c. /etc/netplan/00-installer-config.yaml d. /etc/network/interfaces

/etc/NetworkManager/system-connections/name.nmconnection

Network daemons are started on demand using inetd, xinetd, or Systemd socket units. a. True b. False

True

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

True

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

True

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

DNS /etc/hosts