Network Security 2

Which component of AAA is responsible for verifying a user's identity?

• a) Authorization

• b) Accounting

• c) Authentication

• d) None of the above 

In symmetric cryptography, what type of key is used?

• a) Public key

• b) Private key

• c) Same key for both encryption and decryption

• d) None of the above 

Which of the following technologies is designed to detect suspicious activities and potential threats within a network?

• a) Firewall

• b) IDS

• c) DMZ

• d) VPN 

A DMZ is often used to:

• a) Monitor internal network traffic

• b) Isolate sensitive internal servers from external access

• c) Encrypt data transmissions

• d) Create secure tunnels over public networks 

Which secure protocol is used to provide confidentiality, integrity, and authentication at the network layer?

• a) TLS

• b) IPsec

• c) SSH

• d) SSL 

VPNs are primarily used to:

• a) Monitor network traffic

• b) Detect and prevent intrusions

• c) Create secure, encrypted connections over public networks

• d) Isolate public-facing servers from the internal network 

Which of the following protocols can be used to encrypt web traffic?

• a) HTTP

• b) FTP

• c) TLS

• d) ICMP 

Which technology can block unauthorized access based on a set of security rules?

• a) VPN

• b) DMZ

• c) Firewall

• d) IDS 

Which of the following is not a function of AAA services?

• a) Authentication

• b) Authorization

• c) Accounting

• d) Encryption 

Which of the following best describes the concept of defense in depth?

• a) Implementing a single, strong firewall to protect the network

• b) Using a combination of security measures such as firewalls, IDS, encryption, and physical controls

• c) Focusing all security efforts on securing the endpoint devices

• d) Relying on network segmentation alone to protect sensitive data