What does network security primarily focus on?

• Protecting data at rest

• Enhancing software performance

• Protecting the CIA of data in motion

• Data storage management

Which aspect of information security does network security protect?

• User interfaces

• Data in storage

• Data in motion

• Software patches

In which transmission mode is data sent in one direction only?

• Half duplex

• Full duplex

• Simplex

• Serial

Which transmission mode allows data to be sent and received, but not simultaneously?

• Simplex

• Half duplex

• Full duplex

• Parallel

Which mode allows simultaneous two-way communication?

• Simplex

• Half duplex

• Full duplex

• Serial

Which of the following describes a GAN?

• Local Area Network

• A global collection of WANs

• Private company intranet

• Small office/home office network

What is the best description of an intranet?

• Public access network

• Private internal network for authorized users

• Inter-company shared data system

• E-commerce website

What is the key function of an extranet?

• Used for remote gaming

• Provides public Wi-Fi access

• Allows collaboration between external parties and internal staff

• Encrypts internal traffic

Which method uses a dedicated communication path?

• Packet switched

• Circuit switched

• Bus topology

• Token ring

Which switching method breaks data into packets sent independently?

• Circuit switched

• Star switched

• Packet switched

• Direct connection