Chapter 12

Pataasin ang iyong marka sa homework at exams ngayon gamit ang Quizwiz!

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

b. Putty

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

False

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

True

A subnet mask is used to differentiate the host portion from the network portion in a TCP/IP address. 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

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 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 hostnam

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 file would you modify to permanently change the TCP/IP address of the first wired 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

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

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

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

b. ssh -X d. VNC

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

c. default gateway

Which file stores the TCP/IP addresses of the DNS servers used to resolve host names if no DNS servers are specified within the network configuration file for the NIC? 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

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


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