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IBM(000-236)單項選擇題每日一練(2019.03.21)

單項選擇題
Which of the following entries is INVALID in the /etc/resolv.conf file？（）
A.nameserver 127.0.0.1
B.# gargoyl is128.66.12.1
C.domainname peanut.com
D.search peanut.com cashew.com brazil.com almond.com
單項選擇題
Which of the following files contains the settings for the system’s DNS domain name and DNS servers？（）
A./etc/hosts
B./etc/resolv.conf
C./etc/netsvc.conf
D./etc/named.boot
單項選擇題
A network administrator provides an IP address of 128.135.0.142 and a subnet mask of 255.0.0.0. Once a ping is attempted， it fails. Which of the following options is the most probable cause of the failed ping？（）
A.0 is not valid in an IP address
B.128 is a reserved network
C.The subnet mask should be 255.255.0.0. since it is a class B
D.A network problem has occurred since IP and subnet are valid
單項選擇題
Which of the following options best justifies why a DNS server should be run in a large network system？（）
A.To use ftp and telnet
B.To perform NFS mounts
C.To make /etc/hosts files unnecessary
D.To reduce network traffic and save bandwidth
單項選擇題
Which of the following SMIT panel screens are used to configure a system’s basic network parameters for the very first time only？（）
A.Change System User Interface
B.TCP/IP Further Configuration
C.TCP/IP Minimum Configuration
D.Network Installation Management