Ch. 12 Systems Admin Lunix
True
A subnet mask is used to differentiate the host portion from the network portion in a TCP/IP address.
default gateway
Before a computer can use a router, it must be provided what configuration information?
True
SSH encrypts all traffic that passes across the network, whereas telnet and rlogin do not.
False
Stand-alone daemons are started on demand using the Internet Super Daemon (xinetd).
loopback address
The TCP/IP address of 127.0.0.1 is also referred to as the __________.
port
The daemon associated with network services listen for network traffic associated with a particular _______.
True
The line that configures the host name for the computer at boot time can be found in /etc/sysconfig/network.
host hostname or dig hostname
To test DNS configuration by resolving a host name to IP address, which command or commands can you use?
DNS or /etc/hosts
What are two means available to resolve a host name to the appropriate TCP/IP address?
router
What device can be used to transfer information from one network to another?
ifup eth0
Which command would be used to activate the NIC aliased as eth0?
/etc/hosts
Which file holds the method to be used and the order in which they will be applied for host name resolution?
/etc/resolv.conf
Which file stores the TCP/IP addresses of the DNS servers used to resolve host names?
/etc/sysconfig/network-scripts/ifcfg-eth0
Which file would you modify to change the TCP/IP address of the first aliased NIC on the system the next time the system is booted or the card is brought up?
NFS
Which networking service allows you to share files with other computers on the network?
X Windows and VNC
Which of the following are graphical route administration technologies?
Apache and Telnet
Which of the following are stand-alone daemons?
23
Which of the following port numbers is associated with telnet?
ifconfig, ping, or netstat -i
Which of the following utilities can be used to check TCP/IP configuration and test network connectivity?
Route and IP
Which two commands can be used to modify the route table on a Linux computer?
