WorksheetsNetworking
Total questions: 68
Worksheet time: 38mins
The electronic accounting machine era occurred from 1930-1950.
True
False
The mainframe and minicomputer era began in 1959 and continues to the present
True
False
The personal computer era began in 1981 with the introduction of the IBM PC
True
False
The enterprise Internet computing era involves integrating disparate networks and applications using Internet standards and enterprise applications
True
False
In a multitiered network, processing work is split between clients and servers.
True
False
Moore's Law states that computing power doubles every 12 month
True
False
Nanotechnology has no impact on the evolution of IT infrastructure.
True
False
The amount of data being stored each year is decreasing
True
False
The electronic accounting machine era occurred from 1950-2007.
True
False
The Law of Mass Digital Storage refers to the fact that the amount of data being stored each year doubles
True
False
What is the primary purpose of cloud computing?
To provide virtualized resources over a network
To connect geographically remote computers into a single network
To off-load peak demand for computing power to remote, large-scale data processing centers
To develop systems that can configure, optimize, and heal themselves
Which of the following is NOT one of the main components of IT infrastructure?
Enterprise software applications
Networking/telecommunications platforms
Web development tools/suites
Operating system kernels
What is autonomic computing?
A model of computing in which computer processing, storage, software, and other services are provided as a pool of virtualized resources over a network
A system that connects geographically remote computers into a single network to combine processing power and create a virtual supercomputer
An industry-wide effort to develop systems that can configure, optimize themselves, heal themselves when broken, and protect themselves from outside intruders
A multitier, load-balancing system for Web-based applications
What is the purpose of edge computing?
To provide virtualized resources over a network
To connect geographically remote computers into a single network
To off-load peak demand for computing power to remote, large-scale data processing centers
To perform significant parts of processing by less expensive servers located nearby user
Which component of IT infrastructure connects geographically remote computers into a single network to combine processing power and create a virtual supercomputer?
Cloud computing
Autonomic computing
Grid computing
None of the above
Which enterprise software providers offer enterprise applications?
SAP and Oracle
IBM and Microsoft
BEA and Oracle
Which network operating systems are commonly used at the server level?
Windows Server, Novell, Linux
Windows, Mac OS, Linux
nix, Mac OS, Linux
None of the above
Which hardware server market supports Internet platforms?
Dell, HP/Compaq, IBM
Apple, Samsung, Huawei
Sony, LG, Lenovo
None of the above
Which computing model off-loads peak demand for computing power to remote, large-scale data processing centers?
Cloud computing
On-demand computing (utility computing)
Autonomic computing
All of the above
Which software connects two separate applications?
Middleware
Enterprise application integration (EAI) software
Web Services
None of the above
Which component of IT infrastructure presents a set of computing resources so they can be accessed in ways not restricted by physical configuration or geographic location?
Virtualization
Edge computing
Grid computing
None of the above
Which Web 2.0 key concept involves leveraging "long tail" through customer self-service?
Lightweight user interfaces
Services
Leveraging "long tail" through customer self-service
What is SOA?
Service-oriented architecture
Service-based architecture
System-oriented architecture
What is Web 2.0?
A collection of capabilities, rather than pages
A collection of pages, rather than capabilities
A collection of hardware, rather than capabilities
What is XML?
Extensible Markup Language
Extensible Machine Language
Extensible Media Language
Which of the following is a characteristic of a relational database?
Stores data in paper files
Organizes data into three-dimensional tables
Uses a single table for all entities
Uses key fields to identify records
Which of the following is NOT an entity?
Customer
Supplier
Description
Part
What is a primary key in a relational database?
One field in each table that cannot be duplicated
A field that stores data representing an attribute
A table that links two tables to join information
A characteristic of each entity
What is an entity-relationship diagram used for?
To clarify table relationships in a relational database
To store definitions of data elements and their characteristics
To generate reports
To automate the file storing of definitions
What is normalization?
The process of organizing data into tables
The process of streamlining complex groups of data to minimize redundancy and increase stability and flexibility
The process of specifying the structure of the content of the database
The process of accessing data from a database
What is a DBMS?
A specific type of software for creating, storing, organizing, and accessing data from a database
An automated or manual file storing definitions of data elements and their characteristics
A process of streamlining complex groups of data to minimize redundancy and increase stability and flexibility
An entity representing a person, place, or thing
What is the logical view of data in a database?
How data are actually structured and organized
How end users view data
A specific characteristic of each entity
A table that links two tables to join information
What is the physical view of data in a database?
How end users view data
A specific characteristic of each entity
A table that links two tables to join information
How data are actually structured and organized
What is a collection of related files containing records on people, places, or things?
Database
Entity
Attribute
Records
What is the primary purpose of SAP's integrated software suite?
To organize and store data in a database
To support enterprise-wide, real-time tracking, reporting, and analysis
To create entity-relationship diagrams
None of the above
What is a generalized category representing a person, place, or thing on which we store and maintain information?
Database
Entity
Attribute
None of the above
What is the key field in a relational database that uniquely identifies each record?
Foreign key
Primary key
Join table
None of the above
What is the process of streamlining complex groups of data to minimize redundant data elements and awkward many-to-many relationships?
Normalization
Entity-relationship modeling
Data dictionary creation
None of the above
What is a type of software used for creating, storing, organizing, and accessing data from a database?
SAP
DBMS
ERP
None of the above
What is a database that stores current and historical data that may be of interest to decision makers?
(a)
What is the process of analyzing data contained in natural?
(a)
What is the process of consolidating, analyzing, and providing access to large amounts of data to improve decision making?
(a)
What is the process of discovering and analyzing useful patterns and information from the Web?
(a)
A computer network is a group of interconnected nodes or computing devices that exchange data and resources with each other.
(a)
What type of network covers a larger geographical area, usually with a radius of more than a kilometer?
Local area network
Wide area network
Campus network
What type of network is used by a government agency, university, corporation or similar organization and is typically a network across a set of buildings that are close together?
Campus network
Personal area network
Home area network
What is a worldwide network that connects networks all over the globe, such as the internet?
Global area network
Personal area network
Home area network
What type of network might include personal computers, tablets, smartphones, printers, TVs and other devices within a home environment?
Personal area network
Home area network
Campus network
What is a network that covers a set of buildings that are close together and is used by a government agency, university, corporation or similar organization?
Global area network
Campus network
Personal area network
What are some of the things that computer networks allow users to do?
Communicate using email, video, and instant messaging
Share devices such as printers and scanners
Share files and software on remote systems
All of the above
In which topology does each device have an independent connection to the center of the network?
Bus topology
Ring topology
Star topology
Hybrid toplogy
What is a downside of the bus topology?
Many cables are required to form the network
Each computer has an independent connection to the center of the network
If the cable breaks, none of the computers can reach the network
What topology is efficient and can support high speeds but will be affected if one device fails?
Bus topology
Ring topology
Star topology
What is a hybrid topology?
A topology that connects each computer in a closed loop
A topology that combines two or more types of topologies
A topology that connects computers in a star shape
Which layer of the OSI model is responsible for receiving frames from the data link layer and delivering them to their intended destinations?
Physical layer
Data link layer
Network layer
What layer of the OSI model manages the delivery and error checking of data packets?
Physical layer
Transport layer
Session layer
Network layer
What layer of the OSI model controls the conversations between different computers?
Network layer
Session layer
Presentation layer
Physical layer
What layer of the OSI model formats or translates data for the application layer based on the syntax or semantics that the application accepts?
Transport layer
Presentation layer
Application layer
Network layer
What layer of the OSI model sees network services provided to end-user applications such as a web browser or Office 365?
Application layer
Transport layer
Network layer
Presentation layer
What layer of the OSI model handles the encryption and decryption required by the application layer?
Presentation layer
Transport layer
Application layer
Network layer
What does the data link layer do?
Packages data into frames and corrects errors that may have occurred at the physical layer
Manages the delivery and error checking of data packets
Controls the conversations between different computers
Formats or translates data for the application layer
How does the network layer deliver frames to their intended destinations?
Based on the addresses contained inside the frame
By using logical addresses, such as IP
By directly connecting nodes to perform node-to-node data transfer
By combining two or more topologies
What is the function of routers in the network layer?
To format or translate data for the application layer
To regulate the delivery and error checking of data packets
To control the conversations between different computers
To route information where it needs to go between networks
Refers to unique address that identifies a device on the internet or a local network
(a)
Refers to a communications standard that enables application programs and computing devices to exchange messages over a network ...
TCP
IP
FTP
What layer is responsible for setting up and managing connections between machines?
Physical layer
Transport layer
Session layer
Application layer
What does the presentation layer do?
Identifies communication partners and synchronizes communication
Controls the conversations between different computers
Formats or translates data for the application layer based on the syntax or semantics that the application accepts
ackages data into frames and corrects errors that may have occurred at the physical layer
3 pts. Bonus question: I can fly but have no wings. I can cry but I have no eyes. Wherever I go, darkness follows me. What am I?
(a)
