Top 20 Network Security Interview Questions - PowerPoint PPT Presentation

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Top 20 Network Security Interview Questions

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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. – PowerPoint PPT presentation

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Title: Top 20 Network Security Interview Questions


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Top 20 Network Security Interview Questions
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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.
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  • 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.

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  • 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.

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  • 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.





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  • 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.





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  • 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.





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  • 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.





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  • 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.





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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!




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