Information security is crucial in today's digital world. It is challenging for individuals and businesses to safeguard essential digital information, so a Security Engineer is called in to help overcome these obstacles. A Security Engineer plans, designs, builds and integrates tools and systems used to safeguard our digital systems and information.

1. Top Security Engineer Interview
Questions in 2022
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Information security is crucial in today's digital world. It is challenging for
individuals and businesses to safeguard essential digital information, so a Security
Engineer is called in to help overcome these obstacles. A Security Engineer plans,
designs, builds and integrates tools and systems used to safeguard our digital
systems and information.

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Many companies and organizations are looking for security specialists through job
advertisements, and Security Engineer is one of the most unique and in-demand job
profiles. So, if you're a candidate looking for a job as a Security Engineer, use these
Security Engineer interview questions to help you prepare.
Interview Questions
1. What do you understand by unicast, multicast, and broadcast?
Unicast, Multicast, and Broadcast are the three ways used to send data across a
network.
Unicast Multicast Broadcast
It transmits data from a
single user to a single
recipient.
Data is sent to multiple
destinations from one or
more sources.
Broadcast is known as one-
to-all
2. Define DNS.
DNS is an abbreviation for Domain Name System. Domain names such as
nytimes.com and espn.com allow people to access information online. Internet
Protocol (IP) addresses are used to communicate between web browsers. DNS
converts the domain name into the corresponding IP address and fetches the
information.

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3. What do you mean by VPN?
VPN, or Virtual Private Network, connects a VPN server and a VPN client. It provides the
ability to connect to a secure network when using public networks. VPNs secure your
online activity and protect your real identity. This makes it more difficult for third parties
to follow your internet activities and steal information. The encryption happens in real-
time.
4. What are the various sources of malware?
•Malware comes from various sources, including
•Pop-ups
•Email attachments
•Internet downloads
•Malicious advertisements
•Network connections
•Documents and executable files
5. What exactly is use-case testing?
In testing, a Use Case is a synopsis of the specific use of a software system by an operator
or client. Use cases are created based on user activities and the software application's
response to those actions. It is commonly used in the development of system or validation
test scenarios.

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6. What are the different sniffing tools?
Following are the different types of sniffing tools:
•Wireshark
•TCPDUMP
•MSN Sniffer
•Ettercap
•Dsniff
•EtherApe
7. Explain SQL Injection.
An SQL injection bug allows attackers to introduce malicious data into an SQL
statement. The attackers can browse, change, and destroy records in a
database.
8. Define spoofing.
Spoofing occurs when an attacker tries to fool another individual or
organization and sends you an email that appears to be authentic. The email
appears genuine, and it is difficult to detect a fake.
9. What do you understand by honeypots?
Honeypots are computer systems designed to tempt hackers. It's used to fool
attackers and protect the genuine network from damage.

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10. What exactly is a block cypher?
The process of encrypting the plain message block by block is known as a
block cypher. The basic information is divided into fixed-size units before
being encrypted.
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