EC-COUNCIL 312-92 問題集

質問 1：
In the following socket programming code, who will the server allow connections from?
int main(void)
{
int s1, s2;
s1 = socket(AF_INET, SOCK_STREAM, 0);
sin.sin_port = htons(30);
sin.sin_family = AF_INET;
sin.sin_addr.s_addr = 0;
bind(sockfd, (struct sockaddr *)&sin, sizeof(sin));
listen(sockfd, 10);
s2 = accept(sockfd, 10);
write(s2, "hello\n", 6)
}
A. Only those coming in on TCP port 10
B. Anyone
C. Only those coming in on UDP port 10
D. Only those on the same subnet as the server
正解：B

質問 2：
Processes having the "CAP_NET_BIND_SERVICE" can listen on which ports?
A. Any UDP port under 1024
B. Any UDP port over 1024
C. Any TCP port under 1024
D. Any TCP port over 1024
正解：C

質問 3：
Peter is writing a program that has a GUI front-end and uses a MS SQL database as a backend. Peter's application will repeatedly update and call upon specific tables in the database on a regular basis. Peter wants to make sure that his program always has the ability to update the database and that no other calls or updates can touch the database tables used at the same time. How could Peter accomplish this in his application?
A. SET TRANSACTION EXCLUSIVE
B. SET TRANSACTION WRITE
C. Implicit lock
D. Explicit lock
正解：D

質問 4：
Harold is programming an application that needs to be incorporate data encryption. Harold decides to utilize an encryption algorithm that uses 4-bit working registers instead of the usual 2-bit working registers. What encryption algorithm has Harold decided to use?
A. Blowfish
B. RC5
C. RC4
D. RC6
正解：D

質問 5：
Gregory is a system administrator who oversees 15 Mac OS X servers for his company.
Three of his servers are at remote sites, but they still need to replicate and communicate with the servers at the main office. Gregory wants to use SSL to protect the LDAP traffic between all servers for security. For this to work properly, what port must be opened on the firewalls so that the SSL LDAP traffic can pass through?
A. 443
B. 636
C. 139
D. 22
正解：B

質問 6：
Fred has just finished developing a number of ASP pages that will be posted to his company's website. Fred does not want the page's source code viewed by anyone, so he decided to encode the pages to make the source code unusable. What will the following command accomplish?
screnc /e asp *.* c:\tmp
A. Encode all ASP files in in the c:\tmp and place them in the default IIS virtual directory
B. Create an MD5 hash for all ASP files in the c:\tmp directory
C. Encode all ASP files and place them in the c:\tmp directory
D. Encode all ASP files in current directory as ASP files and place them in the c:\tmpdirectory
正解：D

質問 7：
What type of error will result from the following statement?
int main(int argc, char* argv[])
{
char i[7];
strncpy(i, "sdfusdofof", sizeof(i));
}
A. Null-termination
B. Unbounded string copy
C. String-termination
D. String truncation
正解：A

質問 8：
Sherry is programming an online game and is trying to prevent security threats from being introduced into the game. She is also trying to prevent any kind of online cheating by searching for possible anomalies. Sherry especially wants to prevent cheating where a program or application is used to replace human reaction to produce superior results. What category of online cheating is she most concerned about?
A. Authoritative clients
B. Vector-time augmentation
C. Reflex augmentation
D. Artificial intelligence intervention
正解：D

質問 9：
John is creating a website using ASP. John's web pages will have a number of calculations, so he decides to create an include file that the pages will call so he does not have to rewrite the formula numerous times. John's website will be hosted by a server running IIS. John wants to ensure that the include source code is not revealed when the pages are viewed, so he gives the include an .asp extension.
When IIS processes the include file, which system file will be used to hide the include source code?
A. Include.dll
B. ASP.dll
C. IIS.dll
D. IISASP.dll
正解：B