C# Programming – Part I

Teamwork assignment – English Version

Name: Martin Shoylev

Team : Redcurrant

Computer SystemsHardware Questions

Computer Systems (hardware)

The questions from this chapter include the following topics: Computer systems

Main components of the computer systems, characteristics, interaction

Basic work components

Basic input-output interfaces and standards

3

Question

1. Which of the following is not a network device?

a) Router

b) Switch

c) Modem

d) Network Protocol

e) LAN card

4

Answer The network protocol is not a device. The protocol just shows the right way for the devices to function and perform.

Information: http://computernetworkingnotes.com/c

omptia-n-plus-study-guide/network-devices-hub-switch-router.html

http://compnetworking.about.com/od/networkprotocols/

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Software systemsComputer software

Computer programs (Software)

The questions from this chapter include the following topics: Computer programs (software)

What are they? Functions. Classification.

Creation

Ways of use (installing, starting, uninstalling)

7

Question

2. Which of the following is the owner of Skype?

a) VMware

b) Telerik

c) Microsoft

d) Oracle

e) Google

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Answer Written by Estonian and Swedish developers in 2003, the program was sold to Microsoft for $8.5 billions at 2011.

Information: http://en.wikipedia.org/wiki/Skype

http://www.skype.com/en/about/

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Working with computers and

computer systems

Installing, Usability

Working with computer programs

The questions from this chapter include the following topics Start up and Shut down

Diagnostics

Finding problems

Support

Testing

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Question

3. Which of the following is not a thread to the computer security?

a) Trojans

b) Kockster

c) Bomb

d) Worm

e) Droppers (Containers)

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Answer There is not virus named Kockster. Droppers – hides in the computer systems until certain criteria is met, and then infects the system with the virus. It works like a container with viruses.

Information: http://virusdefence.org/computer-virus

es-types-and-definitions-page-1.html

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Data transfer and Numeral

systemsData transfer channels, measurement units, using the

numeral systems

Data Transfer. Numeral Systems

The questions from this chapter include the following topics:

Different ways for data transfer

Basic measurement units for data width different sizes.

Basic binary calculations

Calculations in different numeral systems

15

Question

4. What would be the result in the following Bitwise XOR operation - 10111011 XOR 01010101?

a) 11101110

b) 11111111

c) 00010001

d) 10101010

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Answer Bitwise operator XOR If both values are the same– false (0)

If both values are different– true(1)

Information: http://www.introprogramming.info/intr

o-csharp-book/

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Operation SystemsArchitecture, process, users, user

interface, file systems

Operation Systems The questions from this chapter

include the following topics Operational systems – basics, main

tasks and functions , types. User interface– basics, types. Graphic interface– basics, main objects, basic operations, organization, options. File – basics, characteristics. Filing systems– basics, types, logical and physical organization, main objects, multitasking.

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Question

5. Which of the following is not an operating system?

a) Android

b) iOS

c) Windows

d) AT&T

e) BSD

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AnswerAT&T is a mobile services provider in USA.

BSD – Berkley Software Distribution

BSD is one of the first UNIX based O.S.

Information:

http://www.bsd.org/

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Software Engineering

Analysis, Specifications, projecting, prototypes, implementation, testing,

support..

Software Engineering The questions from this chapter

include the following topics:

Main phases in the project creating– analysis, modeling, projection, creating a prototype, implementation, checking (testing and quality assurance), improving and developing, documentation, support. Modeling methods. UML. Planning and management of projects.

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Question 6. What does the UML abbreviation means?

a) Unified Music License

b) User Micro Language

c) Unsigned Metro Long

d) Unified Modeling Language

e) Unidentified Multipack Load

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Answer UML

Unified Modeling Language

Graphical language for documentation of all the elements in a software construction

Information http://www.uml.org/

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Data ClassificationCompression algorithms, archiving

software

Data Compression The questions from this chapter

include the following topics:

Compression and decompression of data. Lossless and Lossy compression. Arithmetic coding. Shannon – Fano and Huffman’s algorithm’s. Dictionary coding: LZ-77 and LZW. JPEG coding. Archiving programs – working with WinZip and WinRAR. Creating and principles of work between self-extracting and installation archives. 27

Question

7. Which one of the following data compression methods uses the so called “dictionaries”?

a) LZW

b) Huffman Coding

c) Arithmetic

d) Shannon-Fano

e) DPCM

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Answer Lempel - Ziv - Welch

Lossless encryption method

Uses dictionaries that include the number of every meaning in certain database. Information:

http://www.cs.cf.ac.uk/Dave/Multimedia/node214.html

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Working with text programs

File formats, encoding, text, tables, figures …

Working with text programs

The questions from this chapter include the following topics:

Computer text

Types of file formats(TXT, DOC, DOCX, RTF), Convertion.

Coding text information(coding tables and standards Unicode, Windows-1251, ASCII)

Problems with the use of multi-language platforms

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Question 8. How many symbols does the extended ASCII table includes?

a) 128

b) 148

c) 256

d) 255

e) 204

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Answer

The ASCII table includes 256 symbols.

It reaches the only the 255, because it starts from 0 (null)

Information: http://www.asciitable.com/

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Computer GraphicsRaster and vector graphics, graphic file formats, graphic redactors, color

range

Computer graphics The questions from this chapter

include the following topics: Computer graphics. Graphic file

formats(JPG, GIF, PNG, TIFF, EPS, PSD, AI, CDR). Compression of images. Vector and graphic images. Different format conversions. Applications (creating graphical images, analysis and recognition of images, computer art). Graphic redactors for images. Filters and effects. Color scales: RGB, CMYK, Panton, 16-bit colors.

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Question 9. Which of the following is not a graphics redactor?

a) Media Monkey

b) GIMP

c) Artweaver

d) Pixia

e) PhotoFiltre

f) Paint.NET

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Answer Media Monkey is an audio file program. It works as an Mp3 player, CD

player, audio manager, scanner, encoder, decoder, convertor and etc.

Information: http://www.mediamonkey.com/

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Data basesData models, tables, relations, SQL

Data bases The questions from this chapter include the following topics :Bases of data. Systems that work with databases. Logical and physical organization. Data models Data base relations. Tables and

relations. Objects and the databases. Data types

SQL Language. Types of SQL commands and queries.

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Question 10. Which type of relation between two tables with data cannot be applied without the use of a third table?

a) One to one

b) Many to many

c) One to many

d) All of the above

e) None of the above

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Answer The relation between two data tables in a database relation is working with the use of a security key. The key has the same value in both tables which allows them to find a record in the first table that corresponds to a record in the second table.

Information: http://office.microsoft.com/en-us/access-help/g

uide-to-table-relationships-HA010120534.aspx41

Information SystemsERP, CRM, BI, BPM, FMIS, CAD/CAM,

CMS, software architectures

Information Systems The questions from this chapter include

the following topics :Information systems.Classification (for management and organization ERP, for management and creation, for customer and distributor service– CRM, for analysis and researches – Bi, for solving problems, and so on). Life cycle ( the basic stages in creation and exploration). Main functions and tasks. System architectures – two layered(client/server), three layered, N-layered, cloud computing.

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Question

11. What is the meaning of the abbreviation DSS?

a) Database Management System

b) Decision Support System

c) Executive Informational System

d) Manager Information System

e) Expert System

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Answer

DSS is shortened for Decision Support System.

Decision Support System (DSS) is a computer-based information system that supports business or organizational decision-making activities

Information: http://fbm.uni-ruse.bg/d/uis/L-1.pdf

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Protection and informational

security.Symmetric and asymmetric encryption algorithms, cryptographic hashing,

electronic signature, digital certificates

Protection and informational security

The questions in this theme, include the following topics: Security and protection of the

information. Methods and algorithms for coding: symmetric cryptographic coding– DES, 3DES; asymmetric cryptographic algorithms (public and private key) – RSA, DSA. Cryptographic hashing algorithms – SHA-1, MD5. Electronic signatures. Public key(PKI). Digital certificates.

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Question

12. Which numbers are used by the encryption methods?

a) Prime numbers

b) Odd numbers

c) Even numbers

d) Binary numbers

e) None of the above

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Answer Encryption methods use prime numbers because it take more time for prime numbers to be found if they are big, than other types of numbers and that makes the data harder to decrypt.

Information: http://www.claymath.org/posters/

primes/

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Presentational Systems

Presentation software, presentation preparations, slides,effects, notes,

colors, images, sound, video

Presentation Systems The question from this chapter include the following topics: Presenting information, with the

helps of the presentation software. Computer presentations – slides, effects, notes, footnotes, color systems, templates.

Presentation materials design– use of color, text, images, visualizations and sound.

Presentation software51

Question

13. One of the following presentation software’s is web based. Which one is it?

a) Prezi

b) Apple Keynote

c) Microsoft Power Point

d) Impress

e) All of the above

f) None of the above52

Answer Information: Prezi is used from couple of people

online, so they can maintain simultaneous work on the project.

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MultimediaSoftware creation/ multimedia

enhancement: sound, video, media formats

Multimedia The questions from this chapter, include the following topics Multimedia. Technologies for

multimedia creation. Software tools for media creation. Generation of movies and animation (including text, sounds, images). Compression of multimedia files. Convertion of multimedia file types. Multimedia software development tools, animation and movies.

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Question

14. Which graphic format supports animation and it’s limited to 256 colors?

a) GIF

b) TIFF

c) JPEG

d) GPEG

e) PNG

f) BMP56

Answer Information: The format supports up to 8 bits per pixel for each image, allowing a single image to reference its own palette of up to 256 different colors chosen from the 24 bit RGB color space

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Computer networkOSI model, network models,

protocols, standards, hardware equipment

Computer Networks This chapter includes:

Computer networks. OSI model networks and network protocols.

Local networks – basics, organization and management types, basic standards, hardware components.

Global computer networks – basics, ways of connection, main advantages. Users and recourses.

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Question

15. Which of the following layers is not part of the OSI model?

a) Trade layer

b) Transport layer

c) Network layer

d) Session layer

e) Channel layer

f) Physical layer

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Answer

Information: The layers of the OSI model:

Physical layer, Data link layer, network layer, transport layer, session layer, presentation layer, application layer.

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Internet Internet, Protocols, services, WWW,

HTTP, FTP, SMTP, POP3, IMAP, WebDAV, IP, DNS, …

Internet The questions from this chapter include: Internet – basics, technical and

technological aspects.

Basic services and protocols– HTTP, FTP, POP3, SMTP

Types of internet connections– dial-up, ISDN, LAN, DSL/ADSL, Wi-Fi

Internet addresses– IP addresses, DNS services, first level domains, Hosting. 63

Question

16. What is IEE 802.11 ?

a) Internet Explorer ver. 8.00

b) Wireless networks standard

c) IP address version

d) Connection trough the internet via phone cable

e) None of the above

64

Answer Information: EEE 802.11 is a set of media access control (MAC) and physical layer(PHY) specifications for implementing wireless local area network (WLAN) computer communication

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Electronic CommunicationE-mail, Skype, ICQ, IRC, MSN

Messenger, Yahoo Messenger, social networks, forums, …

Electronic communications

The questions from this chapter include: Electronic communication

Electronic mail– e-mail clients and web based platforms and protocols

Real time communications– IRC, ICQ, Skype, MSN Messenger, Yahoo Messenger – principles of work and protocols

Social networks67

Question

17. Which of the following is not an e-mail client?

a) Lotus Notes

b) Adobe Premiere Pro

c) Thunderbird

d) Eudora

e) Evolution

f) Microsoft Outlook

68

Answer Adobe Premier Pro

Video montage program

Part of the Adobe creative suite

Information: http://www.adobe.com/en/products/

premiere.html

http://en.wikipedia.org/wiki/Adobe_Premiere_Pro

69

World Wide Web (WWW)How does the WWW work? Protocols

HTTP, GET, POST, URL, web browser, web page, web site, …

World Wide Web (WWW)

The questions from this article include: Global informational system - World

Wide Web (WWW) – functionality

Web servers and web browsers. Protocol HTTP, methods GET and POST. Hyperlink technology Web page – meaning, URL address and elements

Website hosting71

Question

18. What HTTP method is used in order to send a query to a web form?

a) POST

b) HEAD

c) LINK

d) PRINT

e) SAVE

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Answer Post – allows the client to sent data to the web server. This query usually generates when web form is sent.

Information: http://en.wikipedia.org/wiki/POST_(HTT

P)

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Web design, HTML, CSS

Web design, HTML, CSS, text, graphics, tables, forms…

Web design, HTML, CSS The questions from this chapter include: Website development, testing and

design

Basic HTML tags: inserting formatted text, images, links, tables

Websites styling language - CSS

Alignment of the webpage

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Question 19.Which HTML tag is deprecated although it might work with some of the modern browsers

a) <b>…</b>

b) <center>… </center>

c) <i>…</i>

d) ^…

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Answer

This tag is abandoned in HTML 4.01 and it is not supported in HTML 5.0

This is because of the block formation titles, paragraphs etc. The style creators decided to move the formatting styles in CSS. Информация:

https://developer.mozilla.org/en-US/docs/Web/HTML/Element/center

http://www.w3schools.com/tags/tag_center.asp

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JavaScript

Creating scripts with JavaScript, basic JavaScript constructions, operators,

objects, manipulation of the DOM tree

JavaScript In this chapter you will find the

following topics: Scripting languages for coding in

internet: JavaScript, Perl, VBScript. Common thoughts on JavaScript. Data types. Operators and expressions Conditional operators. Operators for cycle. JavaScript functions. Objects in JavaScript. Arrays. Classes Date, Math. Objects document, window, navigator. Events in JavaScript. Object model DOM and its manipulation with JavaScript.

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Question

20. The section <div id="myDiv"><b>Bold </b> <i>Italic </i> <span> other</span></div> is operated with the Java Script function for red color and the lastElementChild option. What is the result?

a) Bold italic other

b) Bold italic other

c) Bold italic other

d) Bold italic other80

Answer Last child is a CSS selector that interprets the last part of the whole (word, phrase, element of a list/array).

Information: http://www.developphp.com/view_less

on.php?v=903

http://www.w3schools.com/cssref/sel_last-child.asp

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Telerik Academy

Questions?

Redcurrant team Facebook pagehttps://www.facebook.com/groups/462500253859043

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http://schoolacademy.telerik.com