题目
The word "scan" in the second paragraph probably means______.
A. reading carefully
B. reading quickly and not word by word
C. reading by repeating some important words
D. reading more than one article at the same time
第4题
A.O (sort(N))
B.O(scan(N))
C.O(scan(N))IO
D.IO(scan(N))
第7题
A.cfgmgr -f scsi5
B.cfgmgr -i scsi5
C.cfgmgr -t scsi5
D.cfgmgr -l scsi5
第8题
若输入1,2,下列程序的运行结果为______。 #define SWAP(a,b) t=b;b=a;a=t main () { int a,b, t; scanf ("%d, %d", &a, &b); SWAP (a,b); printf ("a=%d,b=%d\n", a,b); }
A.a=1,b=2
B.a=2,b=1
C.a=1,b=1
D.a=2,b=2
第9题
The objectives of early hackers are a far cry from the goals of today's hacker. The motivation of the new breed of hackers appears not to be curiosity, or a hunger for knowledge, as it used to be. Instead, most of today's hackers are driven by greed, power, revenge, or some other malicious intent, treating hacking as a game or sport, employing the tools that are readily available via the Internet.
The rate of security attacks is actually outpacing the growth of the Internet. This means that something besides the growth of the Internet is driving the rise in security attacks. Here are some realities you should know about: Operating systems and applications will never be secure. New vulnerabilities will be introduced into your environment every day. And even if you ever do get one operating system secure, there will be new operating systems with new vulnerabilities—phones, wireless devices, and network appliances. Employees will never keep up with security polices and awareness. It doesn't matter how much you train and educate your employees. If your employees disregard warnings about the hazards of opening questionable email attachments, how are you going to educate them about properly configuring firewalls and intrusion detection systems for their PCs? Managers have more responsibility than ever. And on top of the realities listed above. security managers are being asked to support increasing degrees of network availability and access.
There are some good security measures you can take: Employ a layer 7, full-inspection firewall. Automatically update your anti-virus at the gateway, server and client. Keep all of your systems and applications updated. Hackers commonly break into a Web site through known security holes, so make sure your servers and applications are patched and up to date. Turn off unnecessary network services. Eliminate all unneeded programs. Scan network for common backdoor services—Use intrusion detection systems, vulnerability scans, antivirus protection.
第31题:Which of the following statements of Steve Wozniak, Bill Gates and Linus Torvalds is TRUE?
[A] They are all good examples of today's computer users.
[B] They are driven by greed, power, revenge, or some other malicious intent.
[C] Their goal is to push programs beyond what they are designed to do.
[D] They are all dead.
第10题
有如下程序段: OPEN DATABACE xsxk USE学生IN 0 SELECT学生 STORE 0 TO m,w SCAN FOR______ IF 性别=.T. m=m+1 ELSE w=w+1 ENDIF EDNSCAN CLEAR ?'男生人数',m ?'女生人数',w CLOSE DATABASE RETURN 功能说明:本程序段是统计专业代码(学号的第3、4位)为03的男、女生人数,则画横线处应填
A.SUBSTR(学号,1,2)='03'
B.SUBSTR(学号,2,2)='03'
C.SUBSTR(学号,3,2)='03'
D.SUBSTR(学号,4,2)='03'
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