Technology Questions

Constructor chaining is the process of calling one constructor from another constructor with respect to current object.

Within same class: It can be done using this() keyword for constructors in same class

From base class: by using super() keyword to call constructor from the base class.

The emulator lets developers “play” around an interface that acts as if it were an actual mobile device. They can write and test codes, and even debug. Emulators are a safe place for testing codes especially if it is in the early design phase.

RTTI is available only for classes which are polymorphic, which means they have at least one virtual method.

DDE (Dynamic Data Exchange) a communication protocol that let applications call each other.

OLE was the first protocol that enabled users and programmers to create compound documents?that is documents that contain data from different applications (for example an Excel worksheet inside a Word document).

Algorithm header file contain the supporting files needed for the execution of these functions.

TYPERUN=SCAN on the JOB card or use JSCAN.

TYPERUN=HOLD on the job card.

it is used for syntatical checks and direct job to spool and hold it.

Social engineering is the art of tricking users into performing certain harmful activities or attacks, users must be trained to identify social engineering. Social engineering attacks typically involve some form of psychological manipulation, fooling otherwise unsuspecting users or employees into handing over confidential or sensitive data. Commonly, social engineering involves email or other communication that invokes urgency, fear, or similar emotions in the victim, leading the victim to promptly reveal sensitive information, click a malicious link, or open a malicious file. Because social engineering involves a human element, preventing these attacks can be tricky for enterprises.