Incremental and snapshot
Full and differential
Full and incremental
Differential and incremental
第1题：
（）is not included in the main contents of the operation and maintenance of the information system.
A.Daily operation and maintenance
B.System change
C.Security management
D.Business change
第2题：
The owner or Master of a towing vessel shall ensure that all tests and inspections of gear take place and are logged ______.
A.when a new Master assumes command
B.daily，at 0800 local zone time
C.weekly，before 2400 Saturday
D.immediately after assuming the watch
第3题：
A.Thedirectorymustexistwithonesubdirectory（general）.
B.Thedirectorymustexistwithtwosubdirectories（daily，weekly）.
C.Thedirectorymustexistwiththreesubdirectories（daily，weekly，monthly）.
D.Thedirectorymustexistwithfoursubdirectories（general，daily，weekly，monthly）.
第4题：
public class A extends Thread { A（） { setDaemon（true）； } public void run（） { （new B（））.start（）； try { Thread.sleep（60000）； } catch （InterruptedException x） {} System.out.println（“A done”）； } class B extends Thread { public void run（） { try { Thread.sleep（60000）； } catch （InterruptedException x） {} System.out.println（“B done”）； } } public static void main（String[] args） { （new A（））.start（）； } } What is the result？（）
第5题：
第6题：
Admiralty Notices to Mariners，containing important information for the mariners and enabling them to keep their charts and books corrected for the latest information，are issued daily and published in ______.
A.Weekly Editions
B.Quarterly Editions
C.Annual Editions
D.Monthly Editions
第7题：
第8题：
The document management of information system engineering supervision is an important work, among them, information the （） is a general class file.
A.supervision summary report
B.weekly report
C.meeting summary
D.daily log
第9题：
第10题：
Weekly backups of the system are done on Sundays， and daily backups are done the rest of the week. Which of following backup methods were used if the system crashes on Friday and only requires two backup sets to recover the system？（）