CIS 235 STUDY EXAM GUIDE QUESTIONS AND ANSWERS
SURE A+
✔✔Do you know how to find the IP address of a device? Of all of the devices on your
LAN? - ✔✔Yes
✔✔If given a network diagram, can you explain the different elements? - ✔✔Yes
✔✔Can you describe and simply explain the different layers of the OSI Model? -
✔✔Open Systems Interconnection
1 - Physical: The lowest layer covers how unstructured data, like bits, are transmitted.
2 - Data Link: This layer covers how data is sent from device to device when they are
connected on the same network.
3 - Network: This layer describes how data packets are routed between wider networks
4 - Transport: This layer refers to how data are actually transferred.
5 - Session: When two computers or devices start an exchange of information, we call
that a session.
6 - Presentation: This layer includes all of the methods that convert data into a format
that is usable by an application
7 - Application: This layer includes websites, browsers, email, and mobile applications
and how they render data so that we can interact and engage with it
✔✔What is a URL? - ✔✔Uniform Resource Locator.
Addresses used by web browsers to identify location of content on the web
✔✔Can you identify the different components of a URL? - ✔✔https:// - application
transfer protocol
www. - host name
nytimes - domain name
.com/ - top-level domain
tech/ - path (case sens.)
index.html - file (case sens.)
✔✔What is a server? What does a server do? - ✔✔A program the fulfills a request of a
client
In a hardware context, a server is a computer that has been configured to support
requests from other computers
In a software context, a server is a program that fulfills requests
✔✔What is client/server computing? How does it work? - ✔✔a structure that partitions
tasks or workloads between the providers of a resource or service
, ✔✔How does the Domain Name System and DNS servers work? - ✔✔Domain Name
System: allows numeric IP addresses to be expressed in natural language.
Domain Name Servers: act like online phone books, taking URL and converting it to an
IP address so the browser can understand it.
✔✔What are the different iterations of Web Technology (1.0-4.0) and what are
examples of each? - ✔✔1.0: Read-only web (Only data)
2.0: Social and Transactional Web (Facebook)
2.5: Mobile Web (iPhone)
3.0: Semantic Web (Search engines recognizing addresses as addresses)
4.0: Symbiotic Web
✔✔Can you briefly describe the various types of tools for creating content on the Web?
- ✔✔
✔✔What are the two ways we defined and conceptualized "The Cloud" in class? - ✔✔
✔✔What are the three main types of cloud services? How are each defined? What is an
example of each? - ✔✔Software as a Service (SaaS): Software that is licensed on a
subscription and is centrally hosted. Ex: Email, Microsoft Word, dropbox
Platform as a Service (PaaS): provides a platform allowing customers to develop, run,
and manage applications. Ex: Microsoft Azure
Infrastructure as a Service (IaaS): Provides virtualized computing resources over the
internet. Ex: Amazon, Google, Microsoft
✔✔What is "virtualization"? Why do we care about this concept? - ✔✔A type of software
that allows a single computer (or cluster of connected computers) to function as if it
were several different computers, each running its own operating system and software.
Virtualization software underpins most cloud computing efforts, and can make
computing more efficient, cost-effective, and scalable.
Because businesses can run on this.
✔✔How does virtualization make the Cloud possible? - ✔✔It allows multiple computers
to run individually while pulling from the same storage spot
✔✔What is "multitenancy"? - ✔✔reference to the mode of operation of software where
multiple independent instances of one or multiple applications operate in a shared
environment
SURE A+
✔✔Do you know how to find the IP address of a device? Of all of the devices on your
LAN? - ✔✔Yes
✔✔If given a network diagram, can you explain the different elements? - ✔✔Yes
✔✔Can you describe and simply explain the different layers of the OSI Model? -
✔✔Open Systems Interconnection
1 - Physical: The lowest layer covers how unstructured data, like bits, are transmitted.
2 - Data Link: This layer covers how data is sent from device to device when they are
connected on the same network.
3 - Network: This layer describes how data packets are routed between wider networks
4 - Transport: This layer refers to how data are actually transferred.
5 - Session: When two computers or devices start an exchange of information, we call
that a session.
6 - Presentation: This layer includes all of the methods that convert data into a format
that is usable by an application
7 - Application: This layer includes websites, browsers, email, and mobile applications
and how they render data so that we can interact and engage with it
✔✔What is a URL? - ✔✔Uniform Resource Locator.
Addresses used by web browsers to identify location of content on the web
✔✔Can you identify the different components of a URL? - ✔✔https:// - application
transfer protocol
www. - host name
nytimes - domain name
.com/ - top-level domain
tech/ - path (case sens.)
index.html - file (case sens.)
✔✔What is a server? What does a server do? - ✔✔A program the fulfills a request of a
client
In a hardware context, a server is a computer that has been configured to support
requests from other computers
In a software context, a server is a program that fulfills requests
✔✔What is client/server computing? How does it work? - ✔✔a structure that partitions
tasks or workloads between the providers of a resource or service
, ✔✔How does the Domain Name System and DNS servers work? - ✔✔Domain Name
System: allows numeric IP addresses to be expressed in natural language.
Domain Name Servers: act like online phone books, taking URL and converting it to an
IP address so the browser can understand it.
✔✔What are the different iterations of Web Technology (1.0-4.0) and what are
examples of each? - ✔✔1.0: Read-only web (Only data)
2.0: Social and Transactional Web (Facebook)
2.5: Mobile Web (iPhone)
3.0: Semantic Web (Search engines recognizing addresses as addresses)
4.0: Symbiotic Web
✔✔Can you briefly describe the various types of tools for creating content on the Web?
- ✔✔
✔✔What are the two ways we defined and conceptualized "The Cloud" in class? - ✔✔
✔✔What are the three main types of cloud services? How are each defined? What is an
example of each? - ✔✔Software as a Service (SaaS): Software that is licensed on a
subscription and is centrally hosted. Ex: Email, Microsoft Word, dropbox
Platform as a Service (PaaS): provides a platform allowing customers to develop, run,
and manage applications. Ex: Microsoft Azure
Infrastructure as a Service (IaaS): Provides virtualized computing resources over the
internet. Ex: Amazon, Google, Microsoft
✔✔What is "virtualization"? Why do we care about this concept? - ✔✔A type of software
that allows a single computer (or cluster of connected computers) to function as if it
were several different computers, each running its own operating system and software.
Virtualization software underpins most cloud computing efforts, and can make
computing more efficient, cost-effective, and scalable.
Because businesses can run on this.
✔✔How does virtualization make the Cloud possible? - ✔✔It allows multiple computers
to run individually while pulling from the same storage spot
✔✔What is "multitenancy"? - ✔✔reference to the mode of operation of software where
multiple independent instances of one or multiple applications operate in a shared
environment
