Question: What is a virus, worms and Trojan horses?
Answer:
A computer virus attaches itself to a program or file
enabling it to spread from one computer to another, leaving infections as it
travels. Like a human virus, a computer virus can range in severity: some may
cause only mildly annoying effects while others can damage your hardware, software
or files.
A
worm is similar to a virus by design and is considered
to be a sub-class of a virus. Worms spread from computer to computer, but
unlike a virus, it has the capability to travel without any human action.
A
Trojan Horse is full of as much trickery as the
mythological Trojan Horse it was named after. The Trojan Horse, at first glance
will appear to be useful software but will actually do damage once installed or
run on your computer.
Question:
What is Anti-Virus Software?
Answer:
Antivirus or anti-virus software (often abbreviated as AV),
sometimes known as anti-malware software, is computer software used to prevent,
detect and remove malicious software. Antivirus software was originally
developed to detect and remove computer viruses, hence the name.
Question: What
is Spyware?
Answer: Software
that enables a user to obtain covert information about another's computer
activities by transmitting data covertly from their hard drive.
Question:
What is Malware Virus?
Answer:
Software which is specifically designed to disrupt or damage a computer system.
Question:
What is Spam?
Answer:
It is irrelevant or unsolicited messages sent over the Internet, typically to
large numbers of users, for the purposes of advertising, phishing, spreading
malware, etc.
Question:
Define Data Backup and recovery tools and methods?
Answer:
A backup, or the process of backing up, refers to the copying and
archiving of computer data so it may be used to restore
the original after a data loss event.
- Normal (Full) Backups
- Incremental Backups
- Differential Backups
- Mirror Backups
A data recovery
is a process of salvaging inaccessible data from corrupted or damaged secondary
storage, removable media or files, when the data they store cannot be accessed
in a normal way.
Four
phases of data recovery
Phase 1: Repair the hard disk drive
Phase 2: Image the drive to a new
drive or a disk image file
Phase 3: Logical recovery of files,
partition, MBR and MFT
Phase 4: Repair damaged files that
were retrieved
Question:
What is Online Backups?
Answer:
Online backup, also known as remote backup,
is a method of offsite data storage in which files, folders, or the entire
contents of a hard drive are regularly backed up on a remote server or computer
with a network connection.
Question: What
is Hacker and Cracker?
Answer:
Hacker is a term used by some to
mean "a clever programmer" and by others, especially those in popular
media, to mean "someone who tries to break into computer systems."
A cracker is someone who breaks
into someone else's computer system, often on a network; bypasses passwords or
licenses in computer programs; or in other ways intentionally breaches computer
security.
Question:
Define Social Networking Information security Provisions in e-commerce?
Answer:
E-commerce
is defined as the buying and selling of products or services over electronic
systems such as the Internet and to a lesser extent, other computer networks.
Any E-Commerce system must
meet four integral requirements:
a) Privacy – information
exchanged must be kept from unauthorized parties
b) Integrity – the exchanged
information must not be altered or tampered with
c) Authentication – both
sender and recipient must prove their identities to each other and
d) Non-repudiation – proof
is required that the exchanged information was indeed received.
Question: Extract Benefits of ICT in Education?
Answer:
Information and
Communication Technologies have recently gained groundswell of interest. It is
a significant research area for many scholars around the globe. Their
nature has highly changed the face of education over the last few decades.
For most Asian countries,
the use of ICT in education and training has become a priority during the last
decade. However, very few have achieved progress. Indeed, a small percentage of
schools in some countries achieved high levels of effective use of ICT to
support and change the teaching and learning process in many subject areas.
Others are still in the early phase of Information and Communication
Technologies adoption.
In addition, schools with
sufficient ICT resources achieved better results than those that are not
well-equipped. There is a significant improvement on learners’
performances. Finally, teachers become more convinced that educational
achievements of pupils are due to good ICT use. In fact, high percentage of
teachers in India (86%) states that pupils are more motivated when computers
and Internet are being used in class.
Question:
Define Impact of ICT on Society: Knowledge based society, Infomania, Digital
Unity and Digital Divide?
Answer:
The growth of Information and
communication technology (ICT) has significantly increased the world’s capacity
for creation of raw data and the speed at which it is produced. The advent of
the internet delivered unheard of quantities of information to people.
The evolution of the internet
from Web 1.0 to Web 2.0 offered individuals tools to connect with each other
worldwide as well as become content users and producers. Innovation in digital
technologies and mobile devices offers individuals a means to connect anywhere
anytime where digital technologies are accessible. Tools of ICT have the
potential to transform education, training, employment and access to
life-sustaining resources for all members of society.
The emergence f IT has impacted
human lives on a grand scale by influencing all spheres of human’s life and all
sectors of society. The IT society has resulted into many new concepts and
terms, some of which we are discussing below.
Knowledge Based Society
A knowledge based society is the
one that lays maximum emphasis on knowledge. This is it, it creates, shares and
uses the knowledge for the prosperity and well-being of its people. Thus the
Knowledge Based Society is a society where knowledge is the primary production
resources instead of labor and capital. A knowledge society generates,
processes, shares and makes available to all members of the society knowledge
that may be used to improve the human condition.
Infomania
Oxford
dictionaries describe the Infomania as the compulsive desire to check or
accumulate news and information, typically via mobile or computer. Young
people are finding it increasingly harder to switch off smart phones and
internet access, and are suffering as a result.
The
constant urge and need to check emails or social media could classify a person
as infomaniac. The infomaniacs are mostly sleep-deprived and they have
compromised diets resulting, into bad physical and mental health.
Digital Unity
Digital
Unity or digital inclusion is the ability of individuals to access and use
information and communication technologies. The access and use of information
and communication technologies impacts individuals and the community as a
whole. Digital Unity ensures that all stake-holders of the society get equal
and fair share of technology use in their lives.
Digital Divides
The
Digital Divides refers to the difference between people who have easy access to
the internet and those who do not. A lack of access is believed to be
disadvantage to those on the disadvantaged side of the Digital Divide because
of huge knowledge base that can only be found online.
