CPA Network Security & Protocols 3

Question 1

Which type of firewall inspects traffic all the way up to the application layer?

Accepted Answer

Next-generation firewall (NGFW)

Answer

An NGFW performs deep packet inspection at the application layer, identifying and controlling applications regardless of port or protocol.

Question 2

What is the difference between symmetric and asymmetric encryption?

Accepted Answer

Symmetric uses one shared key; asymmetric uses a public/private key pair

Answer

Symmetric encryption uses a single shared key for both encryption and decryption, while asymmetric encryption uses a mathematically linked public/private key pair.

Question 3

Which attack involves sending a large volume of ICMP echo requests to overwhelm a target?

Accepted Answer

Ping flood (ICMP flood)

Answer

A ping flood overwhelms a target by sending massive numbers of ICMP echo request packets, consuming bandwidth and processing resources.

Question 4

What does VLAN stand for, and what security benefit does it provide?

Accepted Answer

Virtual LAN; segments network traffic to limit broadcast domains and isolate systems

Answer

A VLAN (Virtual Local Area Network) logically segments a physical network, isolating traffic between groups and reducing the attack surface.

Question 5

Which protocol is used to securely transfer files over a network using SSH?

Accepted Answer

SFTP

Answer

SFTP (SSH File Transfer Protocol) uses SSH to provide encrypted file transfer, replacing the plaintext FTP protocol.

(CPA) Certified Associate Programmer Practice Test

(CPA) Certified Associate Programmer Practice Test

CPA Network Security & Protocols 3