Edexcel ICT

Explain the difference between LAN and WAN.

• LAN and WAN are the same thing.

• LAN connects devices over a large geographical area, while WAN connects devices within a limited area.

• LAN connects devices within a limited area, while WAN connects devices over a large geographical area.

• LAN stands for Wide Area Network, and WAN stands for Local Area Network.

What is the purpose of an IDE in software development?

• An IDE is only used for compiling code in software development.

• An IDE in software development serves the purpose of providing programmers with tools and features to write, test, and debug code efficiently.

• An IDE is primarily used for managing databases in software development.

• An IDE is used to design user interfaces in software development.

What is a primary key in a database system?

• A primary key is a field that can have duplicate values in a table.

• A primary key is a unique identifier for each record in a table.

• A primary key is a random value assigned to each record in a table.

• A primary key is a secondary identifier used for sorting records in a table.

What is phishing in the context of cyber security?

• Phishing is a type of fishing in the ocean

• Phishing is a type of cyber attack where attackers send fraudulent emails or messages pretending to be from reputable companies in order to steal sensitive information.

• Phishing involves catching fish using a net

• Phishing is a type of gardening technique

How has ICT impacted the healthcare industry?

• ICT has not had any impact on the healthcare industry

• ICT has improved patient care through electronic health records, telemedicine, remote monitoring, and data analytics.

• ICT has caused delays in patient care due to technical issues

• ICT has led to a decrease in data security and privacy in healthcare

Describe the process of converting decimal to binary.

• Multiply the decimal number by 2, write down the product. Repeat the process with the quotient until the quotient is 0. The products, read from top to bottom, will give the binary equivalent.

• Subtract the decimal number by 2, write down the difference. Repeat the process with the quotient until the quotient is 0. The differences, read from bottom to top, will give the binary equivalent.

• Divide the decimal number by 2, write down the remainder. Repeat the process with the quotient until the quotient is 0. The remainders, read from bottom to top, will give the binary equivalent.

• Add the decimal number by 2, write down the sum. Repeat the process with the quotient until the quotient is 0. The sums, read from top to bottom, will give the binary equivalent.

What is a firewall and how does it enhance cyber security?

• A firewall enhances cybersecurity by monitoring and controlling network traffic based on security rules, acting as a barrier between trusted and untrusted networks.

• A firewall enhances cybersecurity by randomly blocking network traffic without any specific security rules.

• A firewall enhances cybersecurity by encrypting all network traffic to prevent unauthorized access.

• A firewall enhances cybersecurity by allowing all network traffic without any restrictions.

Discuss the role of SQL in database systems.

• SQL is only used for data storage in database systems.

• SQL has no impact on data retrieval in database systems.

• SQL is primarily used for front-end development in database systems.

• SQL plays a crucial role in interacting with and managing data in database systems.

Explain the concept of encryption in the context of cyber security.

• Encryption is a process that involves sharing sensitive information openly on the internet.

• Encryption is a method used to secure data by converting it into a code that can only be deciphered with the correct key.

• Encryption involves converting data into physical form for storage.

• Encryption is a method used to make data publicly accessible without any security measures.