CyberSecurity

Which 3 levels in OSI Model are usually implemented in the software within the operating system?

• Application, Presentation, Session 

• Data Link, Transport, Application

• Transport, Session, Presentation

Which of these protocols reside in Layer 3 - Network in the OSI Model?

• IP and IPSec

• TCP and IPSec

• IP and TCP

A netmask can be represented by which two ways?

• Decimal Numbers (Netmask: 255.255.255.0) and Slash Notation (80.212.212.50/32)  

• Pound Notation (80.2012.212.50#24) and Decimal Numbers (Netmask: 255.255.255.0)

• Slash Notation (80.212.212.50/32) and Pound Notation (80.2012.212.50#24)

Which is the broadcast address in this network: 172.16.24.0/24

• 172.16.24.255

• 172.16.24.0

• 172.16.24.1

Which one of these is a RFC 1918 ip address?

• 172.16.1.30

• 9.0.0.1

• 172.17.1.30

Shortening an IPv6 address means:

• Removing a group of only 0's 

• Converting 8 groups of 4 hexadecimal numbers into a valid IPv4 address

• Removing unused groups of hexadecimal numbers

What is spoofing?

• Falsifying data, making something appear different than they really are 

• A way of terminating a 3-way handshake connection

• A way server hides from attacks, a defensive mechanics

What is Zero-Trust architecture?

• A network where all systems/resources need explicit access to be able to communicate  

• A network where we do not trust public network(internet), but we trust local network

• A network where only some resources/devices are trusted

You need an IDS (Intrusion Detection System) in addition to IPS (Intrusion Prevention System) to be able to both detect and prevent access

• False. IPS is also able to detect if positioned correctly in the network  

• True. IDS and IPS are two separate product or devices, with designed roles on different parts of the network. IDS tells the IPS to block/prevent. 

To be able to detect and block specific file types/documents to be blocked from downloading from the internet, with a firewall, you need:

• A Next-Generation Firewall with layer 7 features

• A Next-Generation Firewall with layer 6 features

• A Next-Generation Firewall with phaser features