Have you got a call for an interview as a network security engineer? Are you looking for ways that can assist you in preparing well for the interview and eventually cracking it? You have arrived at the right page.
To get the best result out of your interview, it is essential to prepare well by assessing frequently asked network security questions for the interview. This makes you feel a lot more confident, but it also assists in building better know-how of the subject.
This post is regarding the same. We are here to assist you with some of the top interview questions asked for a network security engineer post.
Competition Make Things Tougher
It is an exercise that allows the protection of information available on networks shared by different business systems when it comes to network security. The primary responsibility of the network security engineer is to assess, configure and maintain the software and hardware systems that let the network contain the information security. This ensures that the business network is safeguarded from all the possible threats and the confidential business data remains protected. Every enterprise and organization needs a Network Security Engineer as a CCISO.
This shows why the demand for network security engineers is getting higher with every passing day. With competition getting up, the chances of cracking the interview are also getting challenging. So, you need to be at your best to have an outside chance of making it to your dream company.
Network Security Interview Questions That Can Make You Feel Confident
Now we are proceeding ahead with an integral part of this post. Below we present you a few of the frequently asked network security interview questions to prepare for the big day. Let’s get started:
1. What is the definition of Network Security?
Network security is acknowledged as a term that envelopes different domains of devices, technologies, and procedures. To be precise, it is a configuration made to secure the accessibility and confidentiality of the computer networks using both hardware and software technologies.
2. What are the primary objectives of network security?
The objective of network security is only to block any unauthorized access to the network. It conserves any attacks or threats to data available on the network.
3. What are the functionalities in network security?
The different functionalities in network security are
- Access control
- Email security
- Network segmentation
- Web security
- Behavioral analytics
- Data loss prevention
4. Explain the most reliable measure against a Cross-Site Request Forgery(CSRF)?
There are two ways to protect against CSRF, and they are:
First, using different names for every single field of the respective form,
Secondly, with each request, getting an accidental coin.
5. What is Firewall?
When it comes to a firewall, it is software that cuts off unauthorized users from connecting with the computer.
6. What is VPN?
A virtual private network assists in providing private networks that help users receive and send data on different networks connected through private networks.
7. What is Phishing?
When it comes to Phishing, it is an unethical exercise of sending messages and communications that are deceptive and come out of a supposed source.
8. Explain secure remote access?
Secure remote access allows a secure way to connect devices and users directly through a commercial network.
9. What is a DDoS attack?
When it comes to DDoS attacks, it is flooding the central server with data requests. It works to disturb the business operation and objective system.
10. Explain Shadow IT?
When it comes to Shadow IT, it uses different business systems and devices without the approval of the IT department.
11. Explain Network Access Control?
Network Access Control is a process of accomplishing contact management and network visibility with the answers that define policy enforcement on devices and users following business networks.
12. What is Ransomware?
When it comes to Ransomware, it is basically malware that makes encryption to attain a user’s details at ransom.
13. Explain a proxy firewall?
It is basically a firewall machine that is considered in the initial stages and helps one exacting application by offering the way from one network to another.
14. Explain data loss prevention?
When it comes to data loss prevention, it is basically acknowledged as a gathering of products, practices, techniques, and technologies to get secure or receptive information so that no data is leaked.
15. What is an Intrusion Prevention System?
It is a system that is tailor-made to scan network traffic and attacks vigorously.
16. Name different layers of OSI
The different OSI layers are:
- Data Link Layer
- Presentation Layer
- Session Layer
- Application Layer
- Transport Layer
17. What is the difference between switch and hub?
When it comes to a Hub, it is a networking machine that allows computers to connect. When it is about a switch, it is basically a managing unit that lets the electricity pour into a circuit.
18. Explain RIP?
When it comes to RIP, it is acknowledged as Routing Information Protocol. It is a straightforward process taken into consideration for swapping the data between routers.
19. What are the different types of errors?
The two types of errors are:
- Single bit error
- Burst error
20. Define Intranet?
Intranet is basically a confidential network that is completely based on TCP/IP protocols accessible only by the company’s authorized users.
21. What is a protocol?
It is basically a set of rules that administers all forms of information communication when it comes to protocol.
22. What is pipelining?
The pipeline is a process that defines that a task is initiated before the task has come to an end.
23. What are the layers referred to as network support layers?
- Network layer
- Physical layer
- Data Link layer
24. Explain simplex?
Simplex is basically a communication type where the data is shared only in one direction.
25. Name the factors that can have an impact on the performance of the network?
The factors that can have an impact on the network’s performance are:
- Software
- Transmission media category
- Hardware
- Number of users
26. Explain the difference between a wireless LAN and a wired LAN?
When it comes to wired LAN, it uses Ethernet devices that include a hub, router, and switch. But, when it comes to wireless LAN, it is using devices like WLAN routers and WiFi routers.
27. Explain the usage of TCP in IP packets?
TCP or Transmission control protocol is taken into consideration in a private network as a communication protocol.
28. Explain ALOHA?
When it comes to ALOHA, it is basically a system that assists in arbitrating and coordinating the accessibility to the shared communication platform. It helps in resolving channel allocation problems.
29. What are the different types of ALOHA?
- Slotted Aloha
- Pure Aloha
30. What are the protocols used in the application layer?
- DNS
- SMTP
- FTP
- TELNET
Wrap Up
These are a few of the interview questions and answers that can assist you in getting ready for the upcoming networking security engineer interview. Go through it and search more if you have time, you might indeed get the upper hand over other candidates. Good luck!