IST 349 Exam #3

What is a computer network?

two or more connected computers

List the components of a simple computer network.

PC, Switch, Server, and Router

client/server computing splits processing between mobile devices and desktop computers.

True or False?

False

Where is TCP/IP protocol and packet switching used?

Network communication

What is a local area network?

a network within a small area

What is a wide area network?

a network over a large geographical area

Where is twisted pair wiring used?

LAN, telephone lines

What is needed to connect a computer to a LAN?

network interface card (NIC)

What device is needed to connect a LAN to the Internet?

router

What is the most popular type of wiring used today in a LAN?

CAT 5 twisted pair

What is the most popular LAN protocol used today?

ethernet

Where is the TCP/IP protocol used?

to route packets through the internet

What is the purpose of an IP address?

a unique identifier

Give an example of an IP address. What is the range of possible numbers found in an IP address?

192.168.1.1 the range of numbers is 0 to 255

What city has reduced its waste going to a land field by 80%?

San Francisco

How has the Internet of Things helped reduce waste going to a land field?

Scanners determine what can be recycled

What is IoT?

a network of physical devices that can connect to the internet

What does HTML stand for?

Hyper Text Markup Language

What is an ISP?

Internet service provider

What is Wi-Fi?

a wireless technology used to connect devices to the internet

What is Voice over IP?

delivers voice information in digital form using packet switching

What is the top Web search engine?

Google

Who owns the Android operating system?

Google

Which of the three giants: Google, Apple, and Facebook dominates online advertising?

Google

Which one of the three giants is the leader in mobile apps?

Apple

Which of the three giants is the world's largest social networking service.

Facebook

What is war driving?

Driving around looking for vulnerable networks

Ransomware encrypts files until someone pays the ransom

True or False?

True

What is a denial-of-service attack?

a server is flooded with reuqests to crash it

What is an SQL attack?

exploiting bad code to gain access to a database

What is a computer virus?

malware attached to files

What is a computer worm?

malware that spreads from computer to computer independently

What is a vulnerability?

a weakness in a system

What is a zero-day vulnerability?

unknown vulnerabilities

What is cyberwarfare?

state sponsored cyber attacks

What is social engineering?

using social norms to gain access to resources

What are basic things one can do to protect a computer that is connected to the Internet?

Antivirus software

Firewall

Updates

Unplug it

None of the above

Antivirus software

Firewall

Updates

Why are wireless network connections so prone to attacks?

WEP encryption is easily broken

Main point of the PayPal case study?

It is important to keep IT infrastructure up to date to avoid disruptions

What is encryption and how does it provide data security?

process of transforming data into cipher text

What is a keylogger?

records every keystroke made on a computer

The main point of the Solarwinds Supply Chain Attacks was to illustrate the severe vulnerabilities and scale of software supply chain attacks.

True or False

True

What is WannaCry?

A ransomware attack that affected more than 150 countries in May 2017

The dark web is easily accessible through normal web browsers

True or False?

False

Versum’s ERP transformation

They replaced their software with cloud based technology

What are CRMs

A system that captures data from all over the organization

What software did Adidas use?

Salesforce

What is an enterprise system (aka a ERP system)?

Combines business processes from all areas of the company into one system

Define the term supply chain.

a network of organizations and processes for getting, transforming, and distributing goods

What are the upstream and downstream portions of a supply chain?

Upstream is the suppliers and Downstream are the distributors, retailers, and customers

The bullwhip effect is when small changes in customer demand create equally small ripples in the supply chain

True or False?

False

In a push based model production schedules are based on the forecast for the demand of products. True or False

True

In a pull-based model actual customer orders or purchases trigger events in the supply chain.

True or False

True

The main point of the Coronavirus case study is that

True or False

The main point of the MillerKnoll case study is that they used Salesforce’s CRM tech to align every division on one system

True or False

True

Main Point: Monitoring Employees: Unethical or Good Business ?

It is ethical to monitor employees to an extent

What is RFID

Main Point: Can Low Earth Orbit (LEO) Satellite Internet Systems Solve the Digital Divide?

LEO satellites allow rural areas to gain access to internet

Main Point: Google, Apple, and Meta Battle for Your Internet Experience

The three companies focus on different aspects of the internet to gain profit

What is DNS

Domain Name Server converts domain names to ip addresses

The different names given to a computer include, host name, domain name, IP, and mac addresses. True or False

True

The main idea of the log4shell case study was that zero-day vulnerabilities are extremely dangerous to companies

True or False

True

What happened to the cybersecurity firm FireEye?

They were breached through the compromised SolarWinds software update