OCR J277 - 1.4 Network security

What are two advantages of networking computers?

• Sharing resources and information

• Increased security and privacy

• Reduced hardware costs and redundancy

• Improved software compatibility

What does WAN stand for?

• Wide Area Network

• Wireless Access Node

• Web Application Network

• Wide Access Network

The definition of 'bandwidth' is:

• The range of frequencies within a given band, in particular that used for transmitting a signal.

• The amount of data that can be transmitted in a fixed amount of time.

• The maximum rate of data transfer across a given path.

• The difference between the highest and lowest frequencies of a signal.

The acronym mbps stands for:

• Megabytes per second

• Megabits per second

• Millibits per second

• Microbits per second

Using the LOR framework, identify the impact that bandwidth can have on the performance of a network. Consider the speed of the network, the type of media being accessed, and the number of users.

• Bandwidth affects only the speed of the network.

• Bandwidth impacts the speed, type of media accessed, and number of users.

• Bandwidth has no impact on network performance.

• Bandwidth only affects the number of users.

What are the differences and similarities between a LAN and a WAN?

• LAN and WAN are both types of networks, but LAN is local and WAN is wide area.

• LAN is a type of network, while WAN is not.

• LAN and WAN are the same type of network.

• LAN is used for wide area networks, while WAN is for local networks.

A large supermarket chain is setting up a new client server network. What is meant by the term ‘client server network’?

• A network model where multiple clients request and receive services from a centralized server.

• A peer-to-peer network where each node can act as both a client and a server.

• A network topology where all devices are connected in a circular fashion.

• A type of network where data is transmitted in a token ring.

You plan to use a peer network model for a business. Which of the following are reasons why you might choose this network model?

• Scalability and cost-effectiveness

• Centralized control and security

• Limited connectivity and high cost

• Complex management and maintenance

You have connected your laptop to your home network using wireless technology. Label the different devices stated below:

• Router

• WNIC

• Modem

• Modem

• Wireless Network Interface Card

• Router

The purpose of a router is to:

• connect different networks and direct data between them

• store data permanently

• provide power to devices

• act as a firewall