BTED DIT Component 3 Learning Aim A Quiz 2

What is an ad hoc network?

• A network that is always available and accessible

• A network that is created temporarily and disappears when devices disconnect

• A network that is highly secure and encrypted

• A network that can only be accessed by authorized personnel

Answer explanation

A network that is created temporarily and disappears when devices disconnect. An ad hoc network is a decentralized network that is created spontaneously as devices connect and communicate with each other.

What are the security issues with open networks?

• No security issues with open networks

• Data transmitted over open networks is highly encrypted

• Anyone can access and intercept data transmitted over open networks

• Only authorized users can access open networks

Answer explanation

Anyone can access and intercept data transmitted over open networks. Open networks, such as open Wi-Fi, do not require any authentication to access the network. This means anyone can access and potentially intercept data transmitted over the network, making it highly insecure.

What are performance issues with ad hoc networks?

• Ad hoc networks have better performance than traditional networks

• Ad hoc networks have slower speeds than traditional networks

• Ad hoc networks are not affected by interference or distance between devices

• Ad hoc networks are highly reliable and never experience downtime

Answer explanation

Ad hoc networks have slower speeds than traditional networks. Ad hoc networks rely on the individual devices to relay data between each other, which can result in slower speeds and lower performance compared to traditional networks that have dedicated infrastructure.

What are the issues affecting network availability?

• Network availability is the same in all locations

• Rural locations have better network availability than cities

• Developing countries have better network availability than developed countries

• Network availability can be affected by factors such as available infrastructure, mobile network coverage, and blackspots

Answer explanation

The Network availability can be affected by factors such as available infrastructure, mobile network coverage, and blackspots. The availability and reliability of networks can vary greatly depending on the location and the level of infrastructure available. Rural areas, developing countries, and areas with limited infrastructure may have lower network availability compared to urban areas with more infrastructure and better coverage.

Ad hoc networks refer to networks that are set up on the fly, often using devices that are not specifically designed for ​ (a)   , such as smartphones or laptops. This can include ​ (b)   that are available to the public or ​ (c)   connections that allow one device to share its ​ (d)   with other devices. While ad hoc networks can be convenient, they can also be vulnerable to ​ (e)   , such as unauthorised access or data interception.

• networking
• open Wi-Fi networks
• tethering/personal hotspot
• internet connection
• security issues

Open networks, in particular, are at risk of security issues because they do not require any ​ (a)   . This means that anyone within ​ (b)   of the network can potentially access the data ​ (c)   over it, including sensitive information like passwords and credit card numbers. To mitigate these risks, it's important to use ​ (d)   networks whenever possible, such as those that require a password or use encryption ​ (e)   like WPA2.

• authentication or encryption
• range
• transmitted
• secure
• protocols

Issues affecting network availability can vary depending on factors such as location, infrastructure, and mobile network coverage. For example, ​ (a)   areas may have limited access to high-speed internet, while ​ (b)   areas may have congestion issues that impact performance. ​ (c)   countries may also have limited infrastructure for communication technologies, while ​ (d)   countries may have more advanced networks but may still have ​ (e)   or areas with limited coverage.

• rural
• urban
• Developing
• developed
• blackspots

What is one benefit of cloud storage?

• Limited access rights

• Inability to synchronise devices

• 24/7 unavailability

• Scalability for cost savings

Answer explanation

Cloud storage allows for flexible scaling of storage space, which can help businesses save money by only paying for the storage they use.

What is one advantage of synchronising cloud storage with individual devices?

• Limited access to files

• Inability to access files offline

• Increased productivity and collaboration

• Scalability for cost savings

Answer explanation

Increased productivity and collaboration. Feedback: Synchronisation of cloud storage with individual devices allows for easy access and collaboration on files, even when offline.

What is one benefit of 24/7 availability in cloud storage?

• Limited access to files

• Inability to access files offline

• Increased security risks

• Easy access to files anytime, anywhere

Answer explanation

Easy access to files anytime, anywhere. Feedback: 24/7 availability allows for easy and convenient access to files from anywhere with an internet connection, which can increase productivity and collaboration.