Anzen Technologies Information Security Consultant Interview Questions, Process, and Tips

The OSI model is a conceptual framework that standardizes the functions of a telecommunication or computing system into seven abstraction layers.

• The OSI model stands for Open Systems Interconnection model.

• It helps in understanding how different networking protocols work together.

• The seven layers are: Physical, Data Link, Network, Transport, Session, Presentation, and Application.

• Each layer has specific functions and co...read more

Viruses need a host to replicate and spread, while worms are standalone programs that can self-replicate and spread over networks.

• Viruses require a host file to attach to and replicate, while worms are standalone programs that can spread independently.

• Viruses are usually spread through infected files or documents, while worms can spread over networks without needing a host file.

• Viruses can be dormant until triggered by...read more

Types of viruses include file infectors, macro viruses, boot sector viruses, and ransomware.

• File infectors: attach themselves to executable files and spread when the infected file is run.

• Macro viruses: infect documents and spreadsheets that support macros.

• Boot sector viruses: infect the master boot record of a storage device.

• Ransomware: encrypts files and demands payment for decryption.

There are several types of firewalls, including network firewalls, host-based firewalls, and application firewalls.

• Network firewalls filter traffic between two or more networks and operate at the network layer of the OSI model.

• Host-based firewalls are installed on individual computers and control traffic in and out of that specific device.

• Application firewalls filter traffic at the application layer of the OSI model an...read more

One well-known cyber-attack is the WannaCry ransomware attack.

• WannaCry ransomware attack occurred in 2017, affecting over 200,000 computers in 150 countries.

• The attack exploited a vulnerability in Microsoft Windows systems, encrypting files and demanding ransom in Bitcoin.

• WannaCry was attributed to North Korea by various security experts and agencies.

The interview questions cover topics like vulnerability assessment, penetration testing, web application security, Nmap scanning techniques, and SQL injection.

• Vulnerability Assessment (VA) & Penetration Testing (PT) involve identifying and exploiting security weaknesses in systems.

• Best vulnerability identified in web application security could be a critical SQL injection vulnerability allowing unauthorized access to se...read more