Understanding IDS, IPS, and Encryption

What is the primary function of an Intrusion Detection System (IDS)?

• To block all network traffic

• To expose attempts by attackers to overcome security controls

• To encrypt data in transit

• To store passwords securely

Which type of IDS monitors traffic on a network by intercepting network packets?

• Host-based IDS (HIDS)

• Network-based IDS (NIDS)

• Encryption-based IDS

• Hashing-based IDS

What is the main difference between an Intrusion Detection System (IDS) and an Intrusion Prevention System (IPS)?

• IDS can block attacks, while IPS cannot

• IPS can block attacks, while IDS cannot

• IDS is a hardware device, while IPS is software

• IPS is only host-based, while IDS is network-based

What is the purpose of encryption in data security?

• To make data accessible to everyone

• To prevent data from being accessed by unauthorised people

• To increase the size of data files

• To convert data into a different format for storage

Which type of encryption uses the same key for both encryption and decryption?

• Asymmetric encryption

• Symmetric encryption

• Hashing

• Public key encryption

What does the presence of "https" in a website URL indicate?

• The website is hosted in the UK

• The website uses encryption for data transmission

• The website is a government site

• The website is not secure

What is a key characteristic of hashing compared to encryption?

• Hashing is reversible

• Hashing is a two-way process

• Hashing is one-way and not reversible

• Hashing uses the same key for encryption and decryption

Which of the following is a common use of hashing?

• Encrypting emails

• Storing passwords securely

• Blocking network traffic

• Monitoring network packets

What is asymmetric encryption also known as?

• Private key encryption

• Symmetric encryption

• Public key encryption

• Hashing

Why is it important to encrypt data in transit?

• To increase the speed of data transmission

• To prevent data loss during transmission

• To ensure data is not intercepted and read by unauthorised parties

• To reduce the size of data files