在信息系统联网测试期间不得采用真实业务数据。如因联网测试发生安全事件,将追究()相关责任。
A、信息通信系统业务主管部门
B、信息通信系统运维单位
C、信息通信系统研发单位
D、信息通信系统测评单位
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若在程序中变量均已定义成int类型,且已赋大于1的值,则下列选项中能正确表示代数式1/abc的表达式是( )。
A、1.0/a/b/c
B、1/(a*b*c)
C、1.0/a*b*c
D、1/a/b/(double)c
What is the role of route preference?()
A、It is used as a tie breaker when the same prefix is available through multiple sources
B、It is used to determine which routes to accept into the routing table
C、It is used to select the best route between multiple equal-cost paths
D、It is used to select which routing table to use for forwarding
Given the following scripts, what output would be generated?()
A、 The sky is red.
B、 The sky is blue.
C、 The sky is green.
D、 The sky is yellow.
For security reasons, an administrator is asked to modify the system to prevent someone from leaving a terminal logged in. To enable a five minute timeout for all users, what would need to be done to accomplish this task?()
A、Add the following line to /etc/environment: TMOUT=300
B、Add the following lines to /.profile TMOUT=5 export TMOUT
C、Execute the following command: chuser -u ALL -a TIMEOUT=5M
D、Execute the following command: chsec -u ALL -a TIMEOUT=600
A remote user is trying to telnet to the production server. The session is getting a timeout error. Which command should the user issue to verify the network connection?()
A、iptrace
B、nslookup
C、netstat
D、traceroute