In this article we are going to see cybersecurity interview questions that are asked irrespective of your working field.
What Do You Mean by Cybersecurity?
The field of cybersecurity encompasses infrastructure security, network security, cloud security, and application security. Cybersecurity encompasses security engineering and architecture, incident response, consulting, testing, and ethical hacking. It is responsible for preventing security breaches that could compromise an organization’s data and infrastructure.
What Is the Difference Between a Threat, a Vulnerability, and a Risk?
A threat exploits a vulnerability and can damage or destroy an asset. Vulnerability refers to a weakness in your hardware, software, or procedures. (In other words, it’s a way cyber criminals could easily find their way into your system.) And risk refers to the potential for lost, damaged, or destroyed assets.
What Is Cryptography?
Cryptography is a secure communication technique that prevents parties outside of the sender and intended recipient from accessing the contents of a confidential transmission. The process of cryptography uses an algorithm to convert plaintext input into an encrypted ciphertext output. The message can be converted back into readable plaintext by authorized recipients who possess the necessary key.
What Is a Firewall?
A firewall is a hardware or software network security device that monitors inbound and outbound network traffic. Firewalls, which block the flow of traffic flagged as suspicious or malicious, are considered the first line of defense in the field of network security.
What are the necessary steps for setting up a firewall?
To configure a firewall, you’ll need to:
- Secure the firewall. Only authorized administrators should have access.
- Designate firewall zones. Evaluate assets of values and group them together according to function and sensitivity. Create a corresponding IP address schema.
- Build access control lists. These rules dictate which traffic is permitted to flow in and out of different zones.
- Configure related firewall services and logging. Set up your firewall to report to your logging server and disable any services you don’t plan to use.
- Test. Use vulnerability assessments to check that the firewall is behaving according to the parameters of your access control lists.
What is encryption ?
Encryption is changing the information in efforts to hide the original message. It is done using the encryption algorithms.
What are types of Encryption?
An encryption key is a series of numbers used to encrypt and decrypt data. Encryption keys are created with algorithms. Each key is random and unique. There are two main types of encryption systems: symmetric encryption and asymmetric encryption. Here’s how they’re different.
- Symmetric encryption uses a single password to encrypt and decrypt data.
- Asymmetric encryption uses two keys for encryption and decryption. A public key, which is shared among users, encrypts the data. A private key, which is not shared, decrypts the data.
Explain the working of Encryption.
Encryption takes plain text, like a text message or email, and scrambles it into an unreadable format — called “cipher text.” This helps protect the confidentiality of digital data either stored on computer systems or transmitted through a network like the Internet.
When the intended recipient accesses the message, the information is translated back to its original form. This is called decryption.
To unlock the message, both the sender and the recipient have to use a “secret” encryption key — a collection of algorithms that scramble and unscramble data back to a readable format.
What is the strongest encryption method?
There are several encryption methods that are considered effective. Advanced Encryption Standard, better known as AES, though, is a popular choice among those who want to protect their data and messages. This form of encryption has been the U.S. government standard as of 2002. AES is used worldwide.
With these questions we end this article here but stay connected for next articles on the interview questions series we will be posting soon…