You work as the developer in an IT company. Recently your company has a big customer. The customer runs a large supermarket chain. You're appointed to provide technical support for the customer. Now according to the customer requirement, you are creating a method to hash data with the Secure Hash Algorithm. The data is passed to your method as a byte array named message. You have to use SHA1 to compute the hash of the incoming parameter. Besides this, the result has to be placed into a byte array named hash. In the options below, which code segment should you use?

• A. SHA1 sha = new SHA1CryptoServiceProvider();byte[] hash = BitConverter.GetBytes(sha.GetHashCode());
• B. SHA1 sha = new SHA1CryptoServiceProvider();byte[] hash = null;sha.TransformBlock( message, 0, message.Length, hash, 0);
• C. SHA1 sha = new SHA1CryptoServiceProvider();sha.GetHashCode();byte[] hash = sha.Hash;
• D. SHA1 sha = new SHA1CryptoServiceProvider();byte[] hash = sha.ComputeHash(message);

You have just graduated from college, now you are serving the internship as the software developer in an international company. According to the requirements of the company CIO, you are creating a method to call a COM component. You have to explicitly request the runtime to perform a full stack walk by using declarative security. You must make sure that before the callers execute your method, all callers have the required level of trust for COM interop. So on the method, which attribute should you place?

• A. <SecurityPermission( _ SecurityAction.Demand, _ Flags:=SecurityPermissionFlag.UnmanagedCode) _>
• B. <SecurityPermission( _ SecurityAction.Assert, _ Flags:=SecurityPermissionFlag.UnmanagedCode) _>
• C. <SecurityPermission( _ SecurityAction.Deny, _ Flags:=SecurityPermissionFlag.UnmanagedCode) _>
• D. <SecurityPermission( _ SecurityAction.LinkDemand, _ Flags:=SecurityPermissionFlag.UnmanagedCode) _>

You work as the developer in an IT company. Recently your company has a big client. The client runs a large supermarket chain. According to the business requirement, the client needs a method to clear a Queue named q. Your company asks you to serve this client. You have to create the method for the client. In the options below, which code segment should you use?

• A. q.Dequeue();
• B. q.Clear();
• C. foreach (object e in q) { q.Dequeue();}
• D. foreach (object e in q) { Enqueue(null);}

You have just graduated from college, now you are serving the internship as the software developer in an international company. According to the requirements of the company CIO, you create a Web Form which allows users to log on to an application. On the Web Form, you include a Login control named LoginA. In one of LoginA's event handlers, you have to write code which must implement your custom logic that validates the user's credentials. In which event handler should you write the code?

• A. You should write the code in LoginA_Authenticate
• B. You should write the code in LoginA_LoginError
• C. You should write the code in LoginA_LoggedIn
• D. You should write the code in LoginA_LoggingIn

You work as the developer in an IT company. Recently your company has a big customer. The customer runs a large supermarket chain. You're appointed to provide technical support for the customer. Now according to the customer requirement, a Web site has been created. An EditorZone control has been added to the home page on the Web site. Now the customer wants to enable users to customize the size and location of the Web Parts on their home pages. You have to achieve this for the customer. In the options below, which control should be added to the EditorZone control? (choose more than one)

• A. You should add LayoutEditorPart to the EditorZone control.
• B. You should add BehaviorEditorPart to the EditorZone control.
• C. You should add PropertyGridEditorPart to the EditorZone control.
• D. You should add AppearanceEditorPart to the EditorZone control.