Cyber Security Interview Questions 100% Correct
What is cybersecurity?
Cybersecurity refers to the protection of hardware, software, and data from attackers. The primary purpose of cyber security is to protect against cyberattacks like accessing, changing, or destroying sensitive information.
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What is cybersecurity? - answer Cybersecurity refers to the protection of hardware,
software, and data from attackers. The primary purpose of cyber security is to protect
against cyberattacks like accessing, changing, or destroying sensitive information.
What are the elements of cybersecurity? - answer Major elements of cybersecurity are:
Information security
Network security
Operational security
Application security
End-user education
Business continuity planning
What are the advantages of cyber security? - answer It protects the business against
ransomware, malware, social engineering, and phishing.
It protects end-users.
It gives good protection for both data as well as networks.
Increase recovery time after a breach.
Cybersecurity prevents unauthorized users.
Define Cryptography. - answerIt is a technique used to protect information from third
parties called adversaries. Cryptography allows the sender and recipient of a message
to read its details.
Differentiate between IDS and IPS. - answerIntrusion Detection System (IDS) detects
intrusions. The administrator has to be careful while preventing the intrusion.
In the Intrusion Prevention System (IPS), the system finds the intrusion and prevent it.
What is CIA? - answerConfidentiality, Integrity, and Availability (CIA) is a popular model
which is designed to develop a security policy. CIA model consists of three concepts
:
Confidentiality: Ensure the sensitive data is accessed only by an authorized user.
Integrity: Integrity means the information is in the right format.
Availability: Ensure the data and resources are available for users who need them.
, What is a Firewall? - answerIt is a security system designed for the network. A firewall is
set on the boundaries of any system or network which monitors and controls network
traffic. Firewalls are mostly used to protect the system or network from malware, worms,
and viruses. Firewalls can also prevent content filtering and remote access.
Explain Traceroute - answerIt is a tool that shows the packet path. It lists all the points
that the packet passes through. Traceroute is used mostly when the packet does not
reach the destination. Traceroute is used to check where the connection breaks or
stops or to identify the failure.
Differentiate between HIDS and NIDS. - answerHIDS is used to detect the intrusions.
It monitors suspicious system activities and traffic of a specific device.
NIDS is used for the network.
It monitors the traffic of all device on the network.
Explain SSL - answerSSL stands for Secure Sockets Layer. It is a technology creating
encrypted connections between a web server and a web browser. It is used to protect
the information in online transactions and digital payments to maintain data privacy.
What do you mean by data leakage? - answerData leakage is an unauthorized transfer
of data to the outside world. Data leakage occurs via email, optical media, laptops, and
USB keys.
Explain the brute force attack. How to prevent it? - answerIt is a trial-and-error method
to find out the right password or PIN. Hackers repetitively try all the combinations of
credentials. In many cases, brute force attacks are automated where the software
automatically works to login with credentials. There are ways to prevent Brute Force
attacks. They are:
Setting password length.
Increase password complexity.
Set limit on login failures.
What is port scanning? - answerIt is the technique for identifying open ports and service
available on a specific host. Hackers use port scanning technique to find information for
malicious purposes.
Name the different layers of the OSI model. - answerSeven different layers of OSI
models are as follows:
Physical Layer
Data Link Layer
Network Layer
Transport Layer
Session Layer
Presentation Layer
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