Top 50 Cybersecurity Interview Questions – Blog

Top 50 Cybersecurity Interview Questions – Blog

Cyber security is one of the most sought-after IT jobs. As people increasingly shop online, the demand for cyber security professionals is increasing. This raises the question of data asset security which the industry must address to prevent data misuse. Major corporations are now concerned about cybercrime and have begun to hire Cyber Security specialists to protect their assets and ensure their economic success. You can make a living as a Cyber Security expert and reap the benefits of this industry growth. These top 50 Cyber Security interview questions are helpful for you to prepare.
1. What is cryptography? How does it work?
Cryptography is used for data protection against adversaries. Only the sender or the recipient have access to the data.
2. What is a traceroute in Cyber Security? It can be used in a variety of ways.
Traceroute is a network troubleshooting program. It tracks a packet’s progress over an IP network. It displays all routers it pings between source and destination, along their IP addresses.
Uses:
It shows how long the packet spent on each hop during transmission.
If a packet is lost in transmission, the traceroute will identify the source of failure.
3. Define Firewall in cyber security, and give some examples of its uses.
A firewall is a network security system or device that stops harmful traffic, such as hackers, worms and viruses, from entering the network.
Uses:
It tracks all network traffic, both outgoing and incoming. It will only accept or allow data packets that meet a set security requirements.
It also serves as a firewall between traffic coming in from the outside and the internal network.
4. What does a three-way handshake mean?
This is what happens when you connect a local host and a server over a TCP/IP connection. To establish communication, there are three steps.
The client establishes an SYN connection to the server.
The server responds to the client’s request with a SYN+ACK.
The server responds to the client with an ACK, and the data transmission starts.
5. What is the meaning and purpose of a response code. Make a list.
The HTTP response codes are the response of a server to a client who sends a request. It indicates whether an HTTP request was completed.
1xx: Informational
The request has been received and the process continues. Here are some examples codes:
100 (continue)
101 (switching protocol)
102 (processing)
103 (early hints)
2xx: Success
The action is accepted, understood, and received successfully. Here are some examples of codes:
200 (OK)
202 (accepted)
205 (reset content)
208 (already reported)
3xx: Redirection
Further action is required in order to complete the request. Here are some examples of codes:
300 (multiple choice)
302 (found)
308 (permanent redirect)
4xx: Client Error
The request is invalid or not fulfilled. These are some examples of codes:
400 (bad request)
403 (forbidden)
404 (not found)
5xx: Server Error
The server failed to process a valid request. These are some examples of codes:
500 (internal server error)
502 (bad gateway)
511 (network authentication required)
6. What does the CIA triumvirate entail, you ask?
It is a model to ensure IT security. The CIA is known for its confidentiality, integrity, and availability.
Confidentiality: To prevent unauthorised access of sensitive information.
Integrity: To prevent data from being deleted or modified without authorization.
Accessibility: To ensure that data is always available.
7. What are the most common cyber-attacks?
Here is a list containing common cyberattacks that aim to cause system harm.
Man in the Middle: The attacker inserts his self between the sender’s and the