问题：单选题What is the proper way to refresh sendmail？（）A sendmail -btB sendmail -baC refresh -s sendmailD startsrc -s sendmail...
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问题：单选题Which of the following commands should be used to open a tty port configured in the /etc/uucp/Devices file as： Direct tty2 - 9600 direct in debug mode， ignoring modem control signal data carrier detect （DCD）？（）A cu -l tty2B cu -dml tty2C cu -dht Direct...
问题：单选题Which of the following Class A networks is reserved for "private networks" use only？（）A network 10.0.0.0B network 127.0.0.0C network 129.135.0.0D network 192.168.0.0...
问题：单选题To disable all tcpip deamons that are not required on a server， which of the following files should be edited？（）A /etc/rc.nfsB /etc/rc.tcpipC /etc/rc.netD /etc/inetd.conf...
问题：单选题An application or user experiences poor performance， yet examination of the nfsstat -c output indicates no or very few timeouts and retransmits. This means that the client is receiving responses from the server as fast as it is asking for them. What is...
问题：单选题NFS is experiencing name service resolution difficulties. Which command reports the LEAST useful information in trouble-shooting this problem？（）A nfsstat -sB lssrc -s namedC ls -l /etc/resolv.confD nslookup hostname...
问题：单选题Which of the following functions does the "ifconfig en4 down" perform？（）A Removes the en4 interfaceB Removes the en4’s network routeC Stops all traffic through the en4 interfaceD Stops all traffic through the en4 and removes its network route from the ...
问题：单选题To enable a tty port to be used for a cu session what must be done to the system？（）A smit tty； take the defaults and create the desired ttyB In the /etc/uucp Devices add a line similar to： Direct ttyX - 9600 directC Install bos.net.uucp and the first a...
问题：单选题Which of the following local files is used to run the date command on the remote machine "Earth" using the following rexec command without request for a password？ rexec Earth date（）。A ~/ .rhostsB $HOME/.netrcC /etc/hosts.equivD /etc/security/user...
问题：单选题A modem is set up for a remote TTY connection that will become the system console. How should one verify that the console is enabled as the system console after the next reboot？（）A lscons -bB lscons -dC lscons -sD swcons /dev/tty0...
问题：单选题Which of the following cable types can cause interference on the network when disconnecting any one machine？（）A CoaxialB Cat 1 UTPC Cat 3 UTPD Cat 5 UTP...
问题：单选题Which command can be used to verify all the filesystems that are exported by an NFS server？（）A showmount -e hostnameB showmount -d hostnameC showmount -a hostnameD showmount...
问题：单选题Users complain they cannot communicate with a server. The system administrator suspects there may be a problem with the Ethernet adapter or with the way it is configured. Which command can be run to verify the adapter is configured correctly？（）A nets...
问题：单选题Which of the following interfaces is appropriate for an Ethernet adapter that is configured with an IEEE 802.3 frame type？（）A at0B en0C et0D tr0...
问题：单选题When an ICMP redirect is received from a host that is not the current gateway for the route it is redirecting， which of the following options is the most appropriate to conclude？（）A The redirect will be ignoredB The routing table will be alteredC The p...
问题：单选题Which command is used to turn ipforwarding on or off？（）A ifconfigB noC chdevD netstat...
问题：单选题When choosing a hostname， which of the following naming conventions is most important to consider？（）A The name is unique globallyB The name is unique in a specified domainC The name is not named after a person， place or thingD The name has special mean...
问题：单选题Which daemon is required to be running for Primary Domain Name Servers？（）A gatedB routedC iptraceD named...
问题：单选题When configuring an interface using SMIT and Further Configuration with an IP address and netmask， which of the following outcomes indicates how the routing tables will be affected？（）A A subnet route is automatically addedB A default route is automatic...
问题：单选题When dividing an existing Class B network into 2 subnets of 32，766 hosts each， which of the following subnet masks should be used？（）A 128.0.0.0B 255.128.0.0C 255.254.0.0D 255.255.128.0...
