Notes, summaries, assignments, exams, and problems for Computers

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Gender Disparities in Mortality Rates and Immune System Function

Classified in Computers

Written on in English with a size of 2.03 KB

EXT2018.OA´WOMEN REALLY´

1.a-P1: A recent study found that women tend to live longer than men. b-P3: The academics also discovered that women have a stronger immune system.

  • a-harsh
  • b-hardship
  • c-underpinnings
  • d-outlive

4.p1: Danish researchers analyzed 19th-century data. p2: Research showed that women outlive men. p3: Males have a higher mortality rate even if...

ORD2018.OB·`Shop hires...`

1.a-P2: But it is important for businesses to understand their customers. b-P4: We thought it was an emotional and exciting experience.

  • a-actually
  • b-aware
  • c-stressful
  • d-understanding

4.p1: At the shop, Fabio performed. p2: When Fabio, the staff. p3: The staff had become...

ORD2017.OB`The victorian...`

1.a-P2: People would gather to observe. b-P3: The tableaus were a frozen... Continue reading "Gender Disparities in Mortality Rates and Immune System Function" »

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Registro de Escuderías y Automovilismo

Classified in Computers

Written on in English with a size of 550 bytes

Escudería 1Escudería 2
Escudería 3
Escudería 4

Escudería:
Precio:
Clave:

Disponibilidad para probar coches:

SíNo
Fecha de alta:

¿Deseas recibir información de automóviles?:

Sí

Tipos de coches:

AudiMercedesBMWJaguar
Comentarios

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CHULETA

Classified in Computers

Written on in English with a size of 4.63 KB

 int led = 13; int boton = 2;                       int pot1; int pot2; int led = 9;
 void setup ( ) {                                          void setup ( ) {
 pinMode (led, OUTPUT);                          Serial.Begin (9600);
 pinMode (botón, INPUT);                         pinMode (led, OUTPUT);
 }                                                                }
 void loop ( ) {                                            void loop ( ) {         
 if (digitalRead (boton) == HIGH) {           pot1= analogRead (A0);
     digitalWrite (led, HIGH);                       pot2= map( pot1, 0,
... Continue reading "CHULETA" »
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Essential Business Vocabulary and Office Terminology

Classified in Computers

Written on in English with a size of 3.33 KB

Office Facilities and Personnel

  • Assist: Be in charge of, describe, develop, explain how to use, hire (contatar), sell.
  • Cafeteria: Car park, conference room, ground floor, kitchen, lobby, maintenance, reception, stockroom, toilet, top floor, warehouse.
  • Appointment (cita): Business card, clerk (dependiente), do business, employee, employer, escalator, interview, name plate, receptionist, research and development department, title.

Administrative Tasks and Business Operations

  • Answer incoming calls: Data entry, deliver the message, distribute the incoming mail, file documents (archivar), keep a log (mantener registro), keep track of (llevar registro), order supplies, prepare a presentation, receive visitors, schedule a meeting, screen a call, search
... Continue reading "Essential Business Vocabulary and Office Terminology" »
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IT Infrastructure Upgrade Checklist

Classified in Computers

Written on in English with a size of 3.36 KB

Garage Programmer

System Codes:
E-O-C-O-S-HL-M-RR-R-C-R-L
I-P-E-M-C
I-S-T-C-Q-H-C-R-P-S

Three Weeks Prior

  • Ensure schedules have been confirmed and agreed upon with the client.
  • Ensure the number of clients scheduled matches the site upgrade plan.
  • Prepare client notice:
    • Instructions for backing up files and data.
    • Instructions for backing up Outlook data (.pst, .ost, and contacts).
    • Instructions for favorites.
    • How-tos for the new platform and/or application.
    • Notices regarding known errors.

Two Weeks Prior

  • Get client notice translated through WBRO, if required.
  • Update client notice with French text, if required.
  • Request client notice distribution through the OR-IT Service Desk.
  • Review client schedule and determine inhibited applications or devices, if any.
  • Create
... Continue reading "IT Infrastructure Upgrade Checklist" »
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Refer to the exhibit. When a static IP address is being configured on the host, what address should be used for the default gateway

Classified in Computers

Written on in English with a size of 15.07 KB

1allows 4 an mtu as high as 9198 bytes.​: jumbo frame
2.R highly scalable & have a very high fault tolerance,massive storage capabilities,& fast data access.: sans
3.R not used 2 find noes on ne2rks other than the local ne2rk.: mac addresses
4.as a ne2rk support technician,U only need 2 know how 2 support ipv6.: false
5.@ what layer of the osi model would a tcp or udp header be added 2 a payload?: layer 4
6.border routers: connect an autonomous system with an outside ne2rk
7.by default,the pathping command sends how many pings per hop?​: 100
8.cable that is coated with flame-resistant polyvinyl chloride (pvc) is acceptable 4 use in plenum areas.: false
9.a ________ consists of a host's ip address & the port number of an application
... Continue reading "Refer to the exhibit. When a static IP address is being configured on the host, what address should be used for the default gateway" »
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Web Protocols, P2P Networking, and Data Transmission

Classified in Computers

Written on in English with a size of 2.27 KB

Client and Server Web Interaction

Steps for a Client (Browser)

  • Determine the protocol (HTTP).
  • Ask DNS for the IP address of the server.
  • Make a TCP connection to the server.
  • Send a request for the page; the server sends it back.
  • Fetch other URLs as needed to display the page.
  • Close idle TCP connections.

Steps for a Server

  • Accept a TCP connection from the client.
  • Get the page request and map it to a resource (e.g., file name).
  • Get the resource (e.g., file from disk).
  • Send the contents of the resource to the client.
  • Release idle TCP connections.

Challenges in P2P Networking

  1. How do peers find each other?
  2. How do peers support rapid content downloads?
  3. How do peers encourage each other to upload?

BitTorrent Protocol Download Steps

  1. Start with the torrent description.
... Continue reading "Web Protocols, P2P Networking, and Data Transmission" »
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Understanding TCP/IP and Web 2.0 for Online Safety

Classified in Computers

Written on in English with a size of 2.53 KB

To make this possible, it is necessary to "speak the same language," which is TCP/IP. TCP/IP is used to transfer files or data from one computer to another. Typically, the client is your browser (Firefox, Opera, Internet Explorer), and the server is a program running on a remote computer.


Protection From Hackers and Viruses

Hacking and System Security

Hacking means accessing a computer system and its files without permission. It is illegal, and once inside the system, the hacker might be able to view, copy, or delete important files or plant a virus. Organizations protect themselves using passwords, encrypting files, and using hacking-detection software.

Understanding Computer Viruses

A virus is a program deliberately written to affect operating

... Continue reading "Understanding TCP/IP and Web 2.0 for Online Safety" »
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Understanding Computer Networks and the Internet

Classified in Computers

Written on in English with a size of 2.95 KB

Computer Networks

What is a Network?

A network is a number of computers linked together to allow the sharing of resources. A server usually provides services like file storage and email.

Types of Networks

There are two main types of networks:

  • Local Area Network (LAN): A LAN covers a small area, such as a home or office.
  • Wide Area Network (WAN): A WAN covers a large geographical area. Most WANs are made from several LANs connected together. WANs can be connected together using the internet.

Email

There are two main types of email:

  • Client-based email: Often used by business users, client-based email involves downloading email from a server to an application on the user's computer.
  • Webmail: Accessed through a web browser, webmail can be accessed from any
... Continue reading "Understanding Computer Networks and the Internet" »
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Introduction to Computer Networks

Classified in Computers

Written on in English with a size of 2.57 KB

Servers

A server stores data to be used by other computers on a network. A server could be a specialized machine, or it can be a normal PC running server software. The server stores data and responds to requests for data or files, such as web pages.

Types of Server

There are many different types of servers. Some popular examples follow.

Web Servers

Web servers host websites and generally handle requests for static information such as HTML pages or images. They are used to manage the website on the server and often include FTP software, which can easily host and share large files. The Apache web server is a popular type of open-source web server software.

Application Servers

Many websites are classed as web applications, which contain programming and... Continue reading "Introduction to Computer Networks" »

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