1.3 - Encryption

Fill in the Blanks

By the end of the lesson, you should be able to define

and explain its importance in data security.

Multiple Choice

Which of the following best describes the purpose of protocols in computer networks?

• To establish rules for data transmission between devices

• To increase the speed of the internet connection

• To provide power to network devices

• To physically connect computers together

Multiple Choice

Which of the following best describes 'ciphertext'?

• Encrypted data that is unreadable without a decryption key

• A type of password used for security

• A method of broadcasting data over a network

• A device used to secure wireless networks

Fill in the Blanks

Encryption transforms data into an unreadable format called

.

Multiple Select

Which of the following are wireless encryption protocols?

• WEP

• WPA

• WPA2

• FTP

Multiple Select

Which of the following are purposes of encryption? (3 correct options)

• To protect data from unauthorised access

• To make data unreadable without a key

• To broadcast data openly

• To secure data during storage or transmission

Open Ended

Why is encryption important in wireless networks?

Multiple Choice

Which of the following is a principle used to secure data across network connections?

• Encryption

• Compression

• Fragmentation

• Redundancy

Open Ended

Explain the process of wireless encryption as shown in the diagram. What are the key steps involved?

Open Ended

Why is a secret key important in the process of encryption?

Open Ended

Describe how wireless and wired networks use encryption to secure data. What are the similarities and differences in their approaches?

Multiple Select

Which of the following are required for creating a master key in wireless encryption?

• SSID

• Password

• Ciphertext

• Broadcast Data

Open Ended

Explain how the master key is used in the process of wireless network encryption and decryption.

Multiple Choice

Which statement best describes how the key is handled during wireless network encryption?

• The key is transmitted with the data.

• The key is shared only once at the start.

• The key is not transmitted; both sender and receiver use the same master key.

• The key changes with every data packet.

Fill in the Blanks

Before data transmission begins in a wireless network, a

process is used to verify the receiver has a valid master key.

Open Ended

Describe the handshake process in wireless network encryption and its importance.

Multiple Choice

Which of the following statements is NOT a correct takeaway about network encryption based on the lesson?

• Encryption is used to protect data from unauthorized access.

• Wireless networks are less vulnerable, so encryption is not necessary.

• Wireless encryption protocols include WEP, WPA, and WPA2.

• Even wired networks can benefit from encryption as an added precaution.

Open Ended

How do you think encryption impacts the security of computer networks, especially wireless networks?

Multiple Choice

What is the purpose of encryption in wireless networks?

• To increase network speed

• To prevent unauthorized access to data

• To reduce network congestion

• To improve signal strength