Computer MCQ . (1 Marks)

What is the collective name of both cryptography and cryptanalysis?

Cryptanalysis is also called

Which of the followings is known as the process of converting a cipher-text into original plain text?

Which of the following is an application of various techniques and principles to transform simple message into uninteffigible secret message and to retransform the message back to its original form?

Which of the following is used to transform the original message into unintelligible message by some logic?

Which of the following is a parasite program that comes along with software that does some harm to the system?

Which of the followings is needed to send an e-mail besides computers and basic Internet facilities?

What is an alternative name of Junk mails?

What type of information can be send through an E-mail?

When objects are sent via network, they have to be ………. in order to save memory and bandwidth.

Encryption of the text “My school name is New School” is ……….

Both cryptography and cryptanalysis together is known as ……….

………. is the study of principles and methods of transforming an encrypted message back into meaningful information without the knowledge of the key.

Encrypted text can be retrieved but cannot be decoded in the absence of ……….

The above mentioned critical information is also known as ………. key.

The critical information used for encoding or decoding of messages is called as ……….

The process of converting cipher-text into plain text is known as ……….

The process of converting plain text to cipher-text is known as ……….

In Cryptography Terminology, an algorithm for transforming the original message into unintelligible message is known as ……….

In Cryptography Terminology the transformed secret message is called ……….

In Cryptography Terminology, the original message is called ………

Cryptography can be used as a tool to ……….

………. is an application of various techniques and principles to transform simple message into unintelligible secret message.

………. is a method of secret writing.

Many times spam emails are used as carriers of ………. attacks.

The ……… attacks are used to shut down or make the system inoperable.

……… is renaming the infrastructure such as server.

……… can be defined as listening to various ports and network resources.

Unauthorized access to any system can be made possible through computers unique ………. address scanning.

A ……… is a program that triggers when some logical conditions are met.

A ………. is a way of accessing system or resources of the system using an undocumented way.

The ……… virus hybridizes characteristics of viruses and worms.

A Virus is an independent program whereas a Worm is an independent ……….

The difference between a ……… and a Worm is the ability to propagate itself independently.

A ………. is an independent program containing harmful software that usually propagates itself on networked systems connected to infected systems.

Popular example of a Trojan horse is the ……… grabber.

The name “……….” is given from Greek Mythology and the story of Troy.

A ………. is a program or code segment that hides inside a program and performs a harmful function to computer resources.

Antivirus software is available at ………

……….. antivirus software is an example of free and open source antivirus software.

When the ……… program is executed, the virus is spread.

A parasite program is usually attached to some fancy and attractive software.

A ………. is a parasite program that comes along with software.

While working online, people like to go for safe and ………. operations.

………. systems are difficult to survive without proper security provisions

……….. security counts much when it comes to financial and e-commerce application.

By developing proper ………. measures any organization can improve its brand image and quality of services.

The Information in the form of ……… must be protected and kept hidden from public.

Organization resources include not only hardware and software but ……… also

An organization in a shared environment has to keep the information secured against ………. users.