当前分类： IBM(000-236)
问题：单选题Which of the following files contains the settings for the system’s DNS domain name and DNS servers？（）A /etc/hostsB /etc/resolv.confC /etc/netsvc.confD /etc/named.boot...
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问题：单选题In a DNS environment， the zone file that maps hostnames to IP address （sometimes called the named.hosts file）， is created on which of the following servers？（）A CacheB PrimaryC SecondaryD Primary and secondary...
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 daemon is required to be running for Primary Domain Name Servers？（）A gatedB routedC iptraceD named...
问题：单选题What is the purpose of /etc/uucp/Devices？（）A Defines permissions for remote machines contacting the local machine through BNUB Specifies dialer and modem types for uucp connectionsC Defines basic communication parametersD Assigns alternate or additiona...
问题：单选题Which of the following files should contain the statement "hosts=local， bind"？（）A /etc/hostsB /etc/irs.confC /etc/netsvc.confD /etc/resolv.conf...
问题：单选题Which of the following "no options" controls the maximum value of mbufs？（）A mtuB sb_maxC thewallD tcp_sendspace...
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 command is used to turn ipforwarding on or off？（）A ifconfigB noC chdevD netstat...
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A DNS server for a large network is experiencing performance problems. Which of the following options is the best solution to fix the problem？（）A Enable NISB Purchase a larger serverC Use /etc/hosts on all of the systemsD Create secondary name servers...
问题：单选题All of the following commands could be used to verify availability of tty devices on the system EXCEPT：（）。A lsttyB lsconsC lsdevD lscfg...
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A system administrator has added a new port entry in /etc/services for a new application to be tested. Which of the following commands should be used to activate this port？（）A telinit -qB refresh -s inetdC startsrc -g servicesD refresh -s portmap...
问题：单选题Which of the following options best justifies why a DNS server should be run in a large network system？（）A To use ftp and telnetB To perform NFS mountsC To make /etc/hosts files unnecessaryD To reduce network traffic and save bandwidth...
