ISC2 CC Network Security 3

Question 1

Which OSI model layer handles IP addressing and routing between networks?

Accepted Answer

Layer 3 (Network)

Answer

Layer 3 (Network layer) handles logical addressing using IP addresses and the routing of packets between different networks.

Question 2

What is a VLAN (Virtual Local Area Network)?

Accepted Answer

A logical network segment created within a physical network infrastructure

Answer

A VLAN is a logical grouping of network devices into separate broadcast domains even if they share the same physical infrastructure.

Question 3

What is the purpose of a proxy server?

Accepted Answer

To act as an intermediary between clients and servers, filtering and caching requests

Answer

A proxy server acts as an intermediary between clients and servers, providing caching, filtering, and access control functions.

Question 4

What is port scanning used for in security assessments?

Accepted Answer

Identifying open ports and services running on a target system

Answer

Port scanning identifies which ports are open on a system and what services are listening, helping security teams discover potential attack surfaces.

Question 5

What does NAT (Network Address Translation) primarily do?

Accepted Answer

Translates private internal IP addresses to a public IP address for internet access

Answer

NAT translates private internal IP addresses to a public IP address, allowing multiple internal devices to share a single public IP for internet access.

ISC2 CC - ISC2 Certified in Cybersecurity Practice Test

ISC2 CC - ISC2 Certified in Cybersecurity Practice Test

ISC2 CC Network Security 3