Ch. 12 Questions Linux+

*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/hosts c. /etc/resolve.conf d. /etc/dns.conf

/etc/nsswitch.conf

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

/etc/resolv.conf

*Which file would you modify to permanently change the TCP/IP address of the first NIC on a Fedora 20 system? a. /etc/sysconfig/network-scripts/ifcfg-eth1 b. /etc/sysconfig/network-scripts/ifcfg-eth0 c. /etc/sysconfig/network-scripts/ipcfg-eth0 d. /etc/sysconfig/network-scripts/ipcfg-eth1

/etc/sysconfig/network-scripts/ifcfg-eth0

*Which of the following port numbers is associated with telnet? a. 49 b. 20 c. 137 d. 23

23

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

Apache DNS

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

DNS /etc/hosts

*Stand-Alone daemons are started on demand using inetd or xinetd. True or False?

False

*The daemons associated with network services listen for network traffic associated with a particular___. a. port b. allocation number c. station d. TCP/IP address

Port

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

Putty

*A subnet Mask is used to differentiate the host portion from the network portion in a TCP/IP address. True or False?

True

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

True

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

True

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

default gateway

*To test DNS configuration by resolving a host name to an IP address, which command or commands can you use? a. dig hostname b. host hostname c. nslookcup hostname d. resolve hostname

dig hostname host hostname nslookcup hostname

*Which of the following utilities can be used to check TCP/IP configuration and test network connectivity? (choose all that apply.) a. ipconfig b. ifconfig c. ping d. netstat -i

ifconfig ping netstat -i

*Which command would be used to activate the NIC aliased as eth0? a. ifup eth0 b. ifdown eth0 c. ifup d. ipup eth0

ifup eth0

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

loopback address

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

route ip

*What devices are used to transfer information from one network to another? a. DNS servers b. LANs c. DHCP servers d. routers

routers

*Which of the following are graphical remote administration technologies? (choose all that apply) a. ssh -X b. telnet c. ssh d. VNC

ssh -X VNC