CSA Network and Security Administration 2

Question 1

Which protocol uses port 443 by default for encrypted web traffic?

Accepted Answer

HTTPS

Answer

HTTPS (HTTP Secure) uses TLS encryption and listens on TCP port 443 by default.

Question 2

What does a stateful firewall track that a stateless packet filter does not?

Accepted Answer

Active connection state

Answer

Stateful firewalls maintain a connection table to track the state of active sessions, allowing them to make smarter allow/deny decisions.

Question 3

An administrator needs to segment a physical network into multiple isolated broadcast domains. Which technology achieves this?

Accepted Answer

VLAN

Answer

VLANs (Virtual Local Area Networks) logically segment a switch into multiple isolated broadcast domains without requiring separate physical hardware.

Question 4

Which type of VPN creates an encrypted tunnel between two routers to connect entire office networks?

Accepted Answer

Site-to-site VPN

Answer

Site-to-site VPNs connect two networks (e.g., branch offices) by establishing a persistent encrypted tunnel between gateway devices.

Question 5

What is the primary purpose of Network Address Translation (NAT)?

Accepted Answer

Map private IP addresses to a public IP address

Answer

NAT translates private internal IP addresses to a public IP address, conserving IPv4 address space and masking internal topology.

(CSA) Certified System Administrator Practice Test