Top 20 Network Security Interview Questions

1
Top 20 Network Security Interview Questions
www.infosectrain.com sales_at_infosectrain.com
2
www.infosectrain.com sales_at_infosectrain.com
3
As the world is becoming increasingly dependent
on technology, it is important to focus on the
need for securing almost every aspect of online
data. With the radical growth of the internet and
computer networks, data integrity has become one
of the critical concerns for enterprises
worldwide. Network security is undoubtedly a
significant aspect of operations over the
internet, LAN, or other methods. So, enterprises
need experts who could address their network
security issues and that too in a diverse range
of roles. Therefore, candidates often search for
common network security interview questions that
can help them in their preparations. Here is an
outline of the general network security interview
questions and answers.
www.infosectrain.com sales_at_infosectrain.com
4

• Top Network Security Interview Questions
• If you are aspiring to ace your Network security
  interview in the first go, you need to be
  prepared well. To help you in your interview
  preparation, here we bring the most frequently
  asked network security interview questions. Just
  go through these questions and answers, and be
  confident to crack the interview.
• What are the potential outcomes of a network
  security attack?
• The consequences of network security attacks can
  be irreversible in certain cases. The negative
  outcomes of such attacks include loss of value
  with shareholders, reduction of profits, loss of
  reputation, deterioration of brand value, loss of
  sensitive information, and proprietary data and
  reduced trust with customers.
• What is network security?
• Network security refers to the policies and
  practices tailored for prevention and monitoring
  of unauthorized access, modification, misuse, or
  denial of network-accessible resources and a
  computer network.

www.infosectrain.com sales_at_infosectrain.com
5

• Explain the basic working of network security
• Network security involves the combination of
  various layers of safeguards in the network and
  at the edge. All the network security layers
  ensure implementation of distinct policies and
  controls. Authorized users could gain access to
  network resources with their assigned
  credentials. However, malicious agents could not
  carry out any threats or exploits.
• What are the basic objectives of network
  security?
• The foremost goal of network security is to
  prevent unauthorized access to the network. In
  addition, network security should also safeguard
  the privacy and integrity of sensitive user
  information in the network. Network security also
  aims at safeguarding the network from external
  attacks and malware or other types of attacks.

www.infosectrain.com sales_at_infosectrain.com
6

• What are the different functionalities in network
  security?
• The different functionalities of network security
  continue to evolve with the changing complexity
  of issues with network security. Some of the
  notable functionalities of network security
  include
• Access control
• Application security
• Email security
• Mobile device security
• Web security
• Network segmentation
• Behavioral analytics
• Security information and event management
• Data loss prevention
• What is a VPN?
• A VPN or Virtual Private Network ensures
  encryption of connection from an endpoint to a
  network, generally over the Internet. In most
  cases, a remote-access VPN utilizes SSL or IPsec
  for authenticating communication between network
  and device.

www.infosectrain.com sales_at_infosectrain.com
7

• What is an Intrusion Prevention System?
• An Intrusion Prevention System (IPS) is a
  specifically tailored system for scanning network
  traffic to block attacks actively.
• What is the importance of firewalls in network
  security?
• Firewalls help in creating a barrier between a
  trusted internal network and untrusted external
  networks, like the internet. Firewalls depend on
  a set of specific rules for allowing or blocking
  traffic. A firewall could be either software,
  hardware, or both.
• Define Phishing.
• Phishing is the unethical practice of sending
  fraudulent messages and communications that
  apparently appear to be coming from a reputed
  source.
• How does phishing work?
• Phishing attacks generally happen through emails
  or any other communication method. The message
  appears to come from a trusted sender and tricks
  the user into disclosing sensitive information.
• Latest Network Security Interview Questions
• Now when you have gone through the first set of
  frequently asked interview questions for the
  network security interview, here comes the next
  set. These are the latest network security
  interview questions, that also you may come
  across during your interview. So, lets go
  through the latest network security interview
  questions.

www.infosectrain.com sales_at_infosectrain.com
8

• Why is VPN important for network security?
• VPN provides an encrypted connection over the
  internet from a device to a specific network. As
  a result, users can ensure safe transmission of
  transmission of sensitive data. VPN is important
  for network security because it prevents
  unauthorized people from eavesdropping on
  traffic.
• What is secure remote access?
• Secure remote access enables a safe and secure
  approach for connecting users and devices
  remotely with a corporate network. Secure remote
  access involves VPN technology, which provides
  formidable methods for user or device
  authentication.
• What is a DDoS attack?
• A DDoS or Distributed-Denial-of-Service attack is
  the continuous flooding of a central server with
  frequent data requests. The primary objective of
  a DDoS attack is to disrupt the target system and
  business.

www.infosectrain.com sales_at_infosectrain.com
9

• What are the types of DDoS attacks?
• The three common DDoS attacks are,
• Application attacks
• Volume-based attacks
• Protocol attacks
• What is Shadow IT?
• Shadow IT is the practice of using IT-related
  software or hardware by an individual or
  department without informing the organizations
  IT or security group.
• What is Network Access Control?
• Network Access Control is the process of
  achieving network visibility and access
  management through solutions that enable policy
  enforcement on users and devices in corporate
  networks.

www.infosectrain.com sales_at_infosectrain.com
10

• What is an information security management
  system?
• An information security management system (ISMS)
  is a collection of processes and guidelines
  developed for helping organizations in a scenario
  involving a data breach.
• What is ransomware?
• Ransomware is a variant of malicious software,
  also referred to as malware. It involves
  encryption of the targets data and demand of a
  ransom for providing access. Payment for such
  attacks is generally demanded through
  cryptocurrency.
• What is a proxy firewall?
• A proxy firewall is basically a firewall device
  in the initial stages and provides the gateway
  from one network to another for a particular
  application.
• What is Data Loss Prevention (DLP)?
• Data loss prevention refers to a combination of
  products, techniques, practices, and technologies
  for safeguarding sensitive information from
  leaking outside the organization.

www.infosectrain.com sales_at_infosectrain.com
11
Conclusion Therefore, you can notice that you
have to cover a broad range of topics for network
security interview preparation. The network
security interview questions presented here
provide you a reliable impression of an actual
interview. Most important of all, the
above-mentioned questions also reflect on the
fundamentals of various aspects of network
security. So, aspiring candidates should start
their preparations immediately for network
security interview questions right now. Over the
long term, network security would become a
formidable element in cybersecurity with many
career opportunities. Therefore, every aspiring
candidate must start developing the foundation
for a promising career in network security right
away. Once you have gained significant knowledge,
it is recommended to validate it with a
certification. We offer network security
training course to help candidates prepare for
the interview. So, if youre thinking to achieve
a network security certification, enroll into our
network security training course and get ready to
add a credential to your resume. However,
explore advanced network security interview
questions and strengthen your preparations for
better performance in your interviews!




www.infosectrain.com sales_at_infosectrain.com
12
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 sales_at_infosectrain.com
13
Our Endorsements
www.infosectrain.com sales_at_infosectrain.com
14
Why InfosecTrain
Global Learning Partners
Access to the recorded sessions
Certified and Experienced Instructors
Flexible modes of Training
Tailor Made Training
Post training completion
www.infosectrain.com sales_at_infosectrain.com
15
Our Trusted Clients
www.infosectrain.com sales_at_infosectrain.com
16
(No Transcript)
17
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
sales_at_infosectrain.com
www.infosectrain.com