Network and Security- Foundations-
D315 Questions and Answers 100% Pass
What is a botnet?
✔✔A network of infected devices controlled remotely by an attacker, often used to launch large-
scale attacks
What does SSL/TLS stand for, and what is its purpose?
✔✔Secure Sockets Layer/Transport Layer Security – protocols that encrypt communication
between a client and server
What is the role of a proxy server in network security?
✔✔To act as an intermediary between a user and the internet, helping to hide user identity and
improve security
What is a vulnerability in the context of network security?
✔✔A weakness in a system or network that can be exploited by attackers to gain unauthorized
access
1
,What is the primary purpose of network segmentation?
✔✔To divide a network into smaller, isolated sections to enhance security and limit the spread of
potential breaches
What is the difference between a virus and a worm in network security?
✔✔A virus requires a host file to spread, while a worm is self-replicating and spreads
independently through networks
What is the difference between symmetric and asymmetric encryption?
✔✔Symmetric encryption uses the same key for both encryption and decryption, while
asymmetric encryption uses a pair of public and private keys
What is the purpose of network traffic monitoring?
✔✔To analyze data flow across a network and detect unusual or malicious activity
What is an Intrusion Prevention System (IPS)?
✔✔A system that actively blocks or prevents potential threats based on network traffic analysis
2
,What does a router do in a network?
✔✔It directs data packets between different networks, ensuring they reach their correct
destination
What is encryption used for in network security?
✔✔To convert data into an unreadable format to protect it from unauthorized access during
transmission
What is the purpose of a VPN (Virtual Private Network)?
✔✔To create a secure, encrypted connection between two points over the internet
What is a denial-of-service (DoS) attack?
✔✔An attempt to overwhelm a system with traffic, causing it to crash or become unavailable
What is the role of an Intrusion Detection System (IDS)?
✔✔To monitor network traffic for suspicious activity and potential threats
What is the difference between HTTP and HTTPS?
3
, ✔✔HTTPS uses encryption (SSL/TLS) to secure the communication, whereas HTTP does not
What is a digital certificate?
✔✔A digital document used to prove the ownership of a public key in encryption and
authentication processes
What does the term "phishing" refer to in network security?
✔✔A fraudulent attempt to acquire sensitive information by impersonating a trustworthy entity
What is the role of multi-factor authentication (MFA)?
✔✔To add an extra layer of security by requiring two or more forms of verification before
granting access
What is a honeypot in network security?
✔✔A decoy system designed to attract and analyze attackers to learn about their techniques
What is an access control list (ACL)?
✔✔A set of rules used to determine which users or devices can access certain network resources
4
D315 Questions and Answers 100% Pass
What is a botnet?
✔✔A network of infected devices controlled remotely by an attacker, often used to launch large-
scale attacks
What does SSL/TLS stand for, and what is its purpose?
✔✔Secure Sockets Layer/Transport Layer Security – protocols that encrypt communication
between a client and server
What is the role of a proxy server in network security?
✔✔To act as an intermediary between a user and the internet, helping to hide user identity and
improve security
What is a vulnerability in the context of network security?
✔✔A weakness in a system or network that can be exploited by attackers to gain unauthorized
access
1
,What is the primary purpose of network segmentation?
✔✔To divide a network into smaller, isolated sections to enhance security and limit the spread of
potential breaches
What is the difference between a virus and a worm in network security?
✔✔A virus requires a host file to spread, while a worm is self-replicating and spreads
independently through networks
What is the difference between symmetric and asymmetric encryption?
✔✔Symmetric encryption uses the same key for both encryption and decryption, while
asymmetric encryption uses a pair of public and private keys
What is the purpose of network traffic monitoring?
✔✔To analyze data flow across a network and detect unusual or malicious activity
What is an Intrusion Prevention System (IPS)?
✔✔A system that actively blocks or prevents potential threats based on network traffic analysis
2
,What does a router do in a network?
✔✔It directs data packets between different networks, ensuring they reach their correct
destination
What is encryption used for in network security?
✔✔To convert data into an unreadable format to protect it from unauthorized access during
transmission
What is the purpose of a VPN (Virtual Private Network)?
✔✔To create a secure, encrypted connection between two points over the internet
What is a denial-of-service (DoS) attack?
✔✔An attempt to overwhelm a system with traffic, causing it to crash or become unavailable
What is the role of an Intrusion Detection System (IDS)?
✔✔To monitor network traffic for suspicious activity and potential threats
What is the difference between HTTP and HTTPS?
3
, ✔✔HTTPS uses encryption (SSL/TLS) to secure the communication, whereas HTTP does not
What is a digital certificate?
✔✔A digital document used to prove the ownership of a public key in encryption and
authentication processes
What does the term "phishing" refer to in network security?
✔✔A fraudulent attempt to acquire sensitive information by impersonating a trustworthy entity
What is the role of multi-factor authentication (MFA)?
✔✔To add an extra layer of security by requiring two or more forms of verification before
granting access
What is a honeypot in network security?
✔✔A decoy system designed to attract and analyze attackers to learn about their techniques
What is an access control list (ACL)?
✔✔A set of rules used to determine which users or devices can access certain network resources
4
