Data Communication Flashcard

Front

What is the role of Internet Exchange Points (IXPs) in data communication?

Back

They connect and exchange data between ISPs.

Front

What is a characteristic of Asymmetric DSL?

Back

It uses FDM to create separate channels.

Front

What does Customer Premises Equipment (CPE) include? A modem for internet access. A line splitter for separating voice and data transmission. A router for wireless connectivity. A fiber optic cable for high-speed internet.

Back

A line splitter for separating voice and data transmission.

Front

What is the function of an Optical Network Unit (ONU) in Fiber to the Home (FTTH)?

Back

It converts optical signals into an ethernet format.

Front

What are the three main goals in network security? Options: Confidentiality, Integrity, Availability; Speed, Efficiency, Reliability; Confidentiality, Speed, Integrity; Availability, Efficiency, Security

Back

Confidentiality, Integrity, Availability

Front

Which category of threat mainly affects confidentiality but can also affect integrity? Options: Business Continuity, Preventing Unauthorized Users, Device Failure Protection, Denial of Service

Back

Preventing Unauthorized Users

Front

What is the primary purpose of preventative network controls?

Back

To mitigate or stop a person or event

Front

What is the biggest threat identified in risk assessment frameworks?

Back

Malware

Front

What is a common defense against Denial of Service (DoS) attacks? Options: Increasing bandwidth, Flooding it back, Installing antivirus software, Using a VPN

Back

Flooding it back

Front

What is the best thing to prevent device failure according to the document? Options: Regular software updates, Redundancy within the internet connection, Installing firewalls, Using cloud storage

Back

Redundancy within the internet connection