Linux Ch. 12

Standalone daemons are started on demand using the Internet Super Daemon (xinetd). (True or False?)

False

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

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

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

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

d.) 23

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

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

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

The TCP/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

d.) loopback address

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 and rlogin do not. (True or False?)

True

The line that configures the host name for the computer at boot time can be found in /etc/sysconfig/network. (True or False?)

True

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

a.) /etc/nsswitch.conf

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) d.) DNS (named)

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

To test DNS configuration by resolving a host name to 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

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

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

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

a.) routers

Which networking service allows you to share files to other computers on the network? a.) NIS b.) NFS c.) POP3 d.) BIND

b. NFS

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