Top Network Security Interview Questions That You Should Know
                     Top Network Security Interview Questions
 That You Should Know
www.infosectrain.com | [email protected]
As the world becomes more reliant on the internet and the World 
Wide Web, network security is becoming an increasingly important 
concern for organizations of all sizes to consider and plan for. Due to 
the over-reliance on various verticals for business and personal 
communication, network security is one of the essential parts of 
any information security process. To ensure optimum digital 
security and compliance, organizations of all sizes and scales should 
have proper strategies and mitigation processes in place to secure 
their networks. In this article, we will discuss the most frequently 
asked questions in a network security interview.
www.infosectrain.com | [email protected]
www.infosectrain.com | [email protected]
Question 1: What is the goal of network security in a company or organization, in your 
opinion?
Answer: Network security should include the following components:
 Ensure that all users have access to the network at all times
 Prevent unauthorized access to your network
 Maintain the privacy of all clients
 Protect networks from malware, hackers, and Distributed Denial-of-Service (DDoS) 
attacks
 Protect and secure all data from theft and corruption
Question 2: Define vulnerability, threat, and risk in the context of network security?
Answer: Vulnerability: A vulnerability is defined as a flaw or violation in your system or 
hardware like modems, routers, access points.
Threat: A threat is a method by which an incident is caused; for example, a virus attack is 
considered a threat.
Risk: A risk is an increase in the likelihood of a threat resulting from a secure but not 
sufficiently protected system.
www.infosectrain.com | [email protected]
Question 3: What are the possible consequences of a computer network attack?
Answer: The following are examples of potential outcomes:
 Data that is critical to a company’s survival and success is lost or corrupted
 Shareholder’s value has dropped
 Profit lowered
 Customer’s trust and reputation have deteriorated
 Decrease brand value
Question 4: What are the best ways to protect yourself from a brute force login 
attack?
Answer: You can take three significant steps to defend against a brute force login 
attack.
1.There is a lockout on your account. Infringing accounts are disabled until the 
executive chooses to reactivate them.
2.The progressive delay defense comes next. After a few unsuccessful login attempts, 
the account is locked for a specified number of days.
3.At last, the challenge-response check prevents the login page’s automatic 
submissions.
www.infosectrain.com | [email protected]
Question 5: Define the terms symmetric and asymmetric encryption.
Answer: Symmetric Encryption: The same key is used for both encryption and decryption in 
symmetric encryption. When it comes to symmetric, the process moves at a faster rate.
 Asymmetric Encryption: Different keys are used for the two processes in asymmetric encryption. 
This method of encryption is difficult and time-consuming.
Question 6: Define the terms white hat and black hat hacker.
Answer: White hat and Black hat hackers are two synonymous terms. Both groups are 
knowledgeable at breaking into networks and gaining access to otherwise secured data.
White Hat Hacker:  These are referred to as ethical hackers. Organizations or government agencies 
commonly use them to identify flaws.
Black Hat Hacker: The creation of malware is the responsibility of Black hat hackers. They gain 
unauthorized access to data or networks, causing severe damage and stealing sensitive 
information.
www.infosectrain.com | [email protected]
Question 7: Define the salting process and its application.
Answer: Salting adds special characters to a password to make it more secure. This 
strengthens the passcodes in two ways: it makes it longer and helps to add another 
set of characters from which a hacker would have to guess. It’s a reasonable 
precaution to take for users who have a habit of creating weak passwords. Still, it’s a 
low-level defense because many highly experienced hackers are already familiar with 
the process and consider it.
Question 8: What are your strategies for dealing with “Man-In-The-Middle” 
attacks?
Answer: A Man-in-the-Middle attack occurs when a third party monitors and 
controls communication between the two parties while the latter is utterly unaware 
of the situation. There are two approaches to dealing with this attack.
1.Stay away from open Wi-Fi networks
2.Both parties should use end-to-end encryption
www.infosectrain.com | [email protected]
Question 9: Which is the more secure option, HTTPS or SSL?
Answer: HTTPS (Hypertext Transfer Protocol Secure) combines HTTP and SSL (Secure 
Sockets Layer) to encrypt and secure a user’s browsing activity. SSL (Secure Sockets Layer) 
is a data encryption protocol that encrypts data sent over the internet among two or 
more entities. Though this is close, SSL comes out on top in terms of overall security, 
though any of these are useful to know for web development.
Question 10: What does AAA stand for?
Answer: AAA is an acronym for Authentication, Authorization, and Accounting.
Authentication: The procedure of determining whether a user is authorized to use the 
system and network is known as authentication. Login and password are commonly used 
for authentication.
Authorization: Access control rights are referred to as authorization. This means that, 
depending on the position in the organization, each user on the network has access to 
different portions of data, information, and applications.
Accounting: Network accounting is a type of accounting that collects all network activity 
for each user.
www.infosectrain.com | [email protected]
Network Security with InfosecTrain
Whether you are trying to break into the field of network security or just want to 
brush up on your skills, training and instruction are essential. It’s even better if 
you add certification courses to your knowledge base. The 
network security certification course by InfosecTrain gives you an advantage by 
demonstrating to potential employers that you know about network security.
www.infosectrain.com | [email protected]
About InfosecTrain
• Established in 2016, we are one of the finest 
Security and Technology Training and 
Consulting company
• Wide range of professional training programs, 
certifications & consulting services in the IT 
and Cyber Security domain
• High-quality technical services, certifications 
or customized training programs curated with 
professionals of over 15 years of combined 
experience in the domain
www.infosectrain.com | [email protected]
Our Endorsements
www.infosectrain.com | [email protected]
Why InfosecTrain Global Learning Partners
Certified and Flexible modes Access to the 
Experienced Instructors of Training recorded 
sessions
Post training Tailor Made 
completion Training
www.infosectrain.com | [email protected]
Our Trusted Clients
www.infosectrain.com | [email protected]

Contact us
Get your workforce reskilled 
by our certified and 
experienced instructors!
IND: 1800-843-7890 (Toll Free) / US: +1 657-221-
1127  / UK : +44 7451 208413
[email protected]
www.infosectrain.com