Giesecke & Devrient Security Engineer Interview Questions and Answers

Q1. Cyber security attack and remediation
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Q2. Scenario based questions
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Q3. Tell me about yourself
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Q1. Basic questions
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Q2. Salary discussion
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Q1. SQL Injection and CSS Attacks
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Q2. Port Numbers of different protocols
Ans. 
Port numbers for different protocols
• HTTP - 80

• HTTPS - 443

• FTP - 20, 21

• SSH - 22

• SMTP - 25

• DNS - 53

• POP3 - 110

• IMAP - 143

• LDAP - 389

• RDP - 3389
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Q3. Steps to consider after Phishing attack
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Steps to take after a phishing attack
• Immediately disconnect from the internet

• Change all passwords associated with the compromised account

• Notify the appropriate parties (IT department, bank, etc.)

• Run a virus scan on all devices used to access the compromised account

• Educate yourself and others on how to identify and avoid phishing attacks
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Q4. Some Alerts/incidents and their remediations.
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Q5. A couple behavioural questions too
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Q1. Basic Cybersecurity questions
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Q2. Scenario based questions
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Q1. Basic day to day responsibility
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Monitoring and analyzing security measures to protect an organization's computer systems and networks
• Monitoring security measures to ensure they are effective

• Analyzing security breaches to determine the cause and prevent future incidents

• Implementing security protocols and procedures

• Conducting regular security audits and risk assessments
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Q2. Experience and skill set
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Q1. Salary expectation
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Q2. About myself and strength and weakness
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It was aptitude test with quantitative logical and coding sections

Q1. Asked questions on cybersecurity
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Q2. Do you know about CIA
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Q3. Which one is most important in CIA according to you
Ans. 
Confidentiality is the most important in CIA according to me.
• Confidentiality ensures that sensitive information is protected from unauthorized access.

• It involves implementing access controls, encryption, and secure communication channels.

• Examples include securing user data, protecting trade secrets, and safeguarding classified information.

• Confidentiality is crucial in maintaining trust, privacy, and preventing data bre
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Q4. SQL injection, various attacks , SSL certificate etc
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Q5. SSL CERTIFICATE
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Q1. Cyber kill chain
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Q2. Mitre Att&ck frame work
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Q3. Event life cycle of any siem solution
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The event life cycle of a SIEM solution involves several stages from data collection to incident response.
• Data collection: SIEM collects logs and events from various sources such as network devices, servers, and applications.

• Normalization: The collected data is normalized to a common format for easier analysis and correlation.

• Aggregation: Events are grouped together based on common attributes to identify patterns and t...read more
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Q4. Port numbers, protocols
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Q5. Explain OSI model briefly
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The OSI model is a conceptual framework that defines the functions of a network protocol stack.
• The OSI model consists of seven layers: Physical, Data Link, Network, Transport, Session, Presentation, and Application.

• Each layer has a specific function and interacts with the layers above and below it.

• The model helps in understanding how data is transmitted and received in a network.

• For example, the Physical layer deals wi...read more
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