No business organization can imagine running their business without keeping their data secure.
That is the reason why cybersecurity has emerged as a good career option nowadays. If you are also preparing for an interview in this field, here is a list of top 10 cyber-security interview questions that you must prepare.
What is the difference between Asymmetric encryption?
Asymmetrical encryption is additionally referred to as public-key cryptography, which may be a relatively new method, compared to symmetric encryption. Asymmetric encryption uses two keys to encrypt cleartext. Secret keys are exchanged over the web or an outsized network. It ensures that malicious persons don't misuse the keys. it's important to notice that anyone with a secret key can decrypt the message and this is often why asymmetrical encryption uses two related keys to boosting security. A public key's made freely available to anyone who might want to send you a message. The second private key's kept a secret so that only you get access to it.
What is an IPS and how does it differs from IDS?
IDS requires a person's or another system to seem at the results and determine what actions to require next, which might be a full-time job counting on the quantity of network traffic generated every day. IDS makes a far better post-mortem forensics tool for the CSIRT to use as a part of their security incident investigations.
The purpose of the IPS, on the opposite hand, is to catch dangerous packets and drop them before they reach their target. It’s more passive than an IDS, simply requiring that the database gets regularly updated with new threat data.
What is XSS, how will you mitigate it?
Cross-site scripting (also referred to as XSS) may be a web security vulnerability that permits an attacker to compromise the interactions that users have with a vulnerable application. It allows an attacker to bypass an equivalent origin policy, which is meant to segregate different websites from one another. Cross-site scripting vulnerabilities normally allow an attacker to masquerade as a victim user, to hold out any actions that the user is in a position to perform, and to access any of the user's data. If the victim user has privileged access within the appliance, then the attacker could be ready to gain full control over all of the application's functionality and data.
What is CSRF?
Cross-site request forgery (also referred to as CSRF) may be a web security vulnerability that permits an attacker to induce users to perform actions that they are unable to perform. It allows an attacker to partially circumvent an equivalent origin policy, which is meant to stop different websites from interfering with one another.
What is Security Misconfiguration?
Security Misconfiguration arises when Security settings are defined, implemented, and maintained as defaults. Good security requires a secure configuration defined and deployed for the appliance, web server, database server, and platform. it's equally important to possess the software up so far.
What is a firewall?
A firewall may be a network security device that monitors incoming and outgoing network traffic and decides whether to permit or block specific traffic supported an outlined set of security rules.
Firewalls are a primary line of defense in network security for over 25 years. They establish a barrier between secured and controlled internal networks which will be trusted and untrusted outside networks, like the web.
A firewall is often hardware, software, or both.
HIDS vs NIDS and which one is better and why?
HIDS is a host intrusion detection system and NIDS is a network intrusion detection system. Both systems work on similar lines. It’s just that the location in several. HIDS is placed on each host whereas NIDS is placed within the network. For an enterprise, NIDS is preferred as HIDS is difficult to manage, plus it consumes the processing power of the host also.
What is port scanning?
Each individual computer runs on multiple ports. as an example, when an individual opens his or her email, the computer's server will open a port through which new mail is going to be downloaded through a connection to the e-mail server. Certain ports on a person's pc are open continually, making them a target for any potential hacker who is checking out individuals to victimize. this will cause one's sensitive and private information falling into the hands of these who intend on using it for criminal activity. Unfortunately, criminals and computer hackers are always trying to find new victims to take advantage of, and port scanning is one of the ways through which this will be accomplished.
What is a WAF?
By definition (per OWASP), a WAF may be a piece of software intended to guard an internet app that's on the extent of the appliance. Nonetheless, a WAF isn't defined by the online app: it’s not a customized solution specific thereto application but – similarly to a general software firewall – one that contains parameters to guard against intrusion during a big variety of frameworks and scripts.
How does one govern various security objects?
Various security objects are governed with the assistance of KPI (Key Performance Indicators). allow us to take the instance of windows patch, agreed KPI is often 99%. It means 99% of the PCs will have the newest or last month’s patch. On similar lines, various security objects are often managed.
What is the difference between policies, processes, and guidelines?
A security policy defines the safety objectives and therefore the security framework of an organization. A process may be a detailed step by step the way to document that specifies the precise action which can be necessary to implement important security mechanism. Guidelines are recommendations that may be customized and utilized in the creation of procedures.
2 quick points on Web server hardening?
Web server hardening is the filtering of unnecessary services running on various ports and removal of default test scripts from the servers. Although web server hardening may be a lot quite this and typically organizations have a customized checklist for hardening the servers. Any server gets created needs to be hardened and hardening and should be re-confirmed on a yearly basis. Even the hardening checklist ought to be reviewed on a yearly basis for brand spanking new add-ons.
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