CIE A Level Computer Science 2 - Communications

Which of the following is a primary advantage of using cloud storage for a business?

• Reduced data security risks and complete control over data.
• High initial investment in hardware and the need for dedicated IT staff.
• Scalability, accessibility from anywhere, and reduced maintenance overhead.
• Limited storage capacity and increased latency for data access.

In the context of cloud storage, what does the "shared responsibility model" primarily imply for the customer?

• The customer is responsible for maintaining the physical servers and network infrastructure.
• The cloud provider is responsible for data encryption, access control, and backup strategies.
• The customer retains ownership of their data and is responsible for managing user access and data governance policies.
• Both the customer and the provider share equal responsibility for all aspects of security and data management.

Which type of storage is most commonly used by cloud providers for scalable, cost-effective storage of unstructured data, often accessible via HTTP/HTTPS?

• Block storage, which stores data in fixed-size blocks with direct server access.
• File storage, which organizes data into a hierarchical structure accessible via network file systems.
• Object storage, which stores data as objects with metadata and a unique identifier, accessible via APIs.
• Database storage, which is structured for transactional data and complex queries.

Which network topology is most vulnerable to a single point of failure if the central device malfunctions?

• Star topology
• Bus topology
• Mesh topology
• Ring topology

Which network topology often experiences a high number of data collisions due to all devices sharing a single communication channel?

• Bus topology
• Star topology
• Mesh topology
• Hybrid topology

A school decides to set up a new computer lab network, prioritizing ease of installation and troubleshooting for individual workstation problems. Which topology would be most suitable?

• Star topology
• Mesh topology
• Bus topology
• Ring topology

Which network topology provides multiple paths for data transmission between some, but not all, devices, offering improved fault tolerance without the high cost of full redundancy?

• Partial Mesh Topology
• Full Mesh Topology
• Hybrid Topology combining Bus and Star
• Tree Topology

Which hardware component is directly responsible for allowing a computer to connect to a wired network and send/receive data?

• Network Interface Card (NIC)
• Router
• Switch
• Hub

A network administrator wants to minimize network traffic and improve efficiency within a single Local Area Network (LAN) by ensuring data is sent only to the intended recipient. Which network hardware device should be used?

• Switch
• Hub
• Repeater
• Router

Which network hardware device is primarily responsible for connecting different networks and directing data packets between them?

• Router
• Repeater
• Bridge
• Gateway