Chapter 12 linux+ guide to linux certification review
3. Stand-alone daemons are started on demand using the Internet Super Daemon (xinetd). True or False?
False
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
c. /etc/hosts
18. 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
c. default gateway
4. Which file stores the TCP/IP addresses of the DNS servers used to resolve host names? a. /etc/hosts b. /etc/host.conf c. /etc/resolve d. /etc/resolv.conf
d. /etc/resolv.conf
15. Which command would be used to activate the NIC aliased as eth0? a. ifup b. ifup eth0 c. ipup eth0 d. ifdown eth0
b. ifup eth0
1. A subnet mask is used to differentiate the host portion from the network portion in a TCP/IP address. True or False?
True
14. The line that configures the host name for the computer at boot time can be found in /etc/sysconfig/network. True or False?
True
9. SSH encrypts all traffic that passes across the network, whereas telnet and rlogin do not. True or False?
True
19. 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)
a. Apache (httpd) c. telnet (in.telnetd)
20. Which of the following utilities can be used to check TCP/IP configuration and test network connectivity? (Choose all that apply.) a. ifconfig b. ipconfig c. ping d. netstat -i
a. ifconfig c. ping d. netstat -i
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
a. route c. ip
10. What devices are used to transfer information from one network to another? a. routers b. LANs c. DNS servers d. DHCP servers
a. routers
17. Which file would you modify to change the TCP/IP address of the first wired NIC on the system the next time the system is booted or the card is brought up? 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
b. /etc/sysconfig/network-scripts/ifcfg-eth0
8. What are two means available to resolve a host name to the appropriate TCP/IP address? (Choose two answers.) a. DHCP b. DNS c. /etc/hosts d. /etc/resolve.conf
b. DNS c. /etc/hosts
2. Which networking service allows you to share files with other computers on the network? a. NIS b. NFS c. POP3 d. BIND
b. NFS
11. Which of the following are graphical remote administration technologies? (Choose all that apply.) a. telnet b. X Windows c. rlogin d. VNC
b. X Windows d. VNC
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
b. dig hostname c. host hostname
12. The daemons associated with network services listen for network traffic associated with a particular ________________. a. station b. port c. TCP/IP address d. allocation number
b. port
16. Which of the following port numbers is associated with telnet? a. 20 b. 137 c. 49 d. 23
d. 23
13. The TCP/IP address 127.0.0.1 is also referred to as the ________________. a. local address b. lookup address c. local host d. loopback address
d. loopback address
