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NEW QUESTION: 1
Examine this code:
Why does this code cause an error when compiled?
A. Variable v_name should be declared before declaring the LOG_EXEC procedure.
B. The LOG_EXEC procedure should be invoked as EXECUTE log_exec within the AUDIT_EMP procedure.
C. An insert statement is not allowed in a subprogram declaration.
D. Procedure LOG_EXEC should be declared before any identifiers.
Answer: A
NEW QUESTION: 2
You are developing an ASP.NET MVC application that uses forms authentication. The application uses SQL queries that display customer order data.
Logs show there have been several malicious attacks against the servers.
You need to prevent all SQL injection attacks from malicious users against the application.
How should you secure the queries?
A. Implement parameterization of all input strings.
B. Filter out prohibited words in the input submitted by the users.
C. Check the input against patterns seen in the logs and other records.
D. Escape single quotes and apostrophes on all string-based input parameters.
Answer: A
Explanation:
SQL Injection Prevention, Defense Option 1: Prepared Statements (Parameterized Queries) The use of prepared statements (aka parameterized queries) is how all developers should first be taught how to write database queries. They are simple to write, and easier to understand than dynamic queries. Parameterized queries force the developer to first define all the SQL code, and then pass in each parameter to the query later. This coding style allows the database to distinguish between code and data, regardless of what user input is supplied.
Prepared statements ensure that an attacker is not able to change the intent of a query, even if SQL commands are inserted by an attacker.
References:
NEW QUESTION: 3
DRAG DROP
You are developing a shared library to format information. The library contains a method named _private.
The _private method must never be called directly from outside of the shared library.
You need to implement an API for the shared library.
How should you complete the relevant code? (Develop the solution by selecting the required code segments and
arranging them in the correct order. You may not need all of the code segments.)
Answer:
Explanation:
Box 1:
Box 2:
Box 3:
Box 4:
Note:
* Here there is a basic example:
// our constructor
function Person(name, age){
this.name = name;
this.age = age;
};
// prototype assignment
Person.prototype = (function(){
// we have a scope for private stuff
// created once and not for every instance
function toString(){
return this.name + " is " + this.age;
};
// create the prototype and return them
return {
// never forget the constructor ...
constructor:Person,
// "magic" toString method
toString:function(){
// call private toString method
return toString.call(this);
}
};
})();
* Example:
You can simulate private methods like this:
function Restaurant() {
}
Restaurant.prototype = (function() {
var private_stuff = function() {
// Private code here
};
return {
constructor:Restaurant,
use_restroom:function() {
private_stuff();
}
};
})();
var r = new Restaurant();
// This will work:
r.use_restroom();
// This will cause an error:
r.private_stuff();
NEW QUESTION: 4
展示を参照してください。
ネットワークダイアグラムに関する説明として正しいものはどれですか。 （2つ選択してください。）
A. PC-AとPC-Bは同じサブネットにあります。
B. PC-Bのサブネットアドレスは、ネットワーク部分専用の18ビットです。
C. ルーターの1つに2つのシリアルインターフェイスが接続されています。
D. R1とR3は同じサブネットにあります。
E. PC-Cのサブネットには256台のホストを含めることができます。
Answer: C,E