IBM(000-234)单项选择题每日一练(2019.01.22)

单项选择题
Which command series should be used to determine whether file paging or paging space paging is a problem when running a program from an idle system？（）
A. foo ； lsps -s
B. tprof -kx ； foo
C. iostat ； foo ； iostat
D. vmstat -s ； foo ； vmstat s
单项选择题
Given the following on a system that is not a name server， which will be the first area searched to resolve a host name to an IP address？（） #cat /etc/resolv.conf domain abc.century.com nameserver 192.9.201.1 nameserver 192.9.201.2 #cat /etc/netsvc.conf hosts = bind，nis，local #echo $NSORDER local，bind
A. /etc/hosts on server 192.9.201.2
B. /etc/hosts on the local system
C. /etc/named.rev on 192.9.201.1
D. /etc/netsvc.conf on the NIS server
单项选择题
Which of the following commands will only provide a snapshot of average memory usage for a process？（）
A. vmtune
B. ps au
C. iostat
D. rmss -m
单项选择题
To examine the Exhibit， press the Exhibit button. While a developer is compiling a C program， "vmstat 120 10" is run to determine the cause of a performance problem. Using the vmstat output as shown in the exhibit， which of the following conclusions is most appropriate to draw about the machine？（）
A. The machine has too many users.
B. The machine has an I/O bottleneck.
C. The machine has a CPU bottleneck.
D. The machine has a memory bottleneck.
单项选择题
Which of the following commands is used to display detailed ethernet statistics for ent0？（）
A. ifconfig ent0
B. entstat -d ent0
C. netstat -i
D. lscfg -vl ent0