Computer Networks Quiz 1

How can a computer user put a picture on the Internet?

• Surfing

• Uploading

• Browsing

• Downloading

Answer explanation

Uploading is the transmission of a file from one computer system to another, usually larger computer system. From a network user's point-of-view, to upload a file is to send it to another computer that is set up to receive it.

____________ can be used quickly to locate information on the internet.

• Quick locator

• Quick finder

• Search finder

• Search engine

Answer explanation

On the Internet, a search engine is a coordinated set of programs that includes:

A spider (also called a "crawler" or a "bot") that explores the Internet by following hyperlinks, starting with a core group of "seed" URLs covering major hubs.

A program that creates a huge index (or database) from the pages that have been read

A program that receives your search request, compares it to the entries in the index, and returns results to you

Google is the most widely used search engine in the world capturing about 92% of search users worldwide. Yahoo and Bing come in second at just over 2% each. DuckDuckGo has gained some popularity due to their focus on protecting user's private search data. Other popular search engines in the world are Baidu (China), Yandex (Russia), and Naver (South Korea).

Which of the following is a data communication device?

• Flash disk

• Modem

• Joystick

• Printer

Answer explanation

Data communications equipment refers to computer hardware devices used to establish, maintain and terminate communication network sessions between a data source and its destination. A modem is a typical example of data communications equipment. In general, data communications equipment is used to perform signal exchange, coding and line clocking tasks as a part of intermediate equipment.

The advantage of buying goods and services using the internet is that _________.

• Money cannot be stolen.

• Damaged goods cannot be supplied.

• Buying can be done any time.

• Viruses can be avoided

Answer explanation

The convenience of online shopping

Customers can purchase items from the comfort of their own homes or workplace. Shopping is made easier and convenient for the customer through the internet. It is also easy to cancel the transactions.

Why shop Online

Saves time and efforts.

The convenience of shopping at home.

Wide variety/range of products are available.

Good discounts / lower prices.

Get detailed information about the product.

We can compare various models/brands.

Which of the following tools will help store a page a user enjoys on the internet?

• Browser storer

• Enjoys

• Favorite's

• Refresh

The location of a resource on the internet is given by it’s __________.

• Protocol

• URL

• E-mail address

• Title

Answer explanation

URL stands for Uniform Resource Locator. A URL is nothing more than the address of a given unique resource on the Web. In theory, each valid URL points to a unique resource. Such resources can be an HTML page, a CSS document, an image, etc. In practice, there are some exceptions, the most common being a URL pointing to a resource that no longer exists or that has moved. As the resource represented by the URL and the URL itself are handled by the Web server, it is up to the owner of the web server to carefully manage that resource and its associated URL.

What is a NIC?

• Network Interface Card

• Network Interference Control

• No Internet Connection

• New Infrared Controller

Answer explanation

A network interface card (NIC) is a hardware component, typically a circuit board or chip, which is installed on a computer so it can connect to a network. Modern NICs provide functionality to computers, such as support for I/O interrupt, direct memory access (DMA) interfaces, data transmission, network traffic engineering and partitioning.

The Internet offers different services.  Which one listed below is incorrect?

• Chat room

• Electronic mail

• World Wide Web

• Off line shopping

Answer explanation

The internet offers a range of services to its consumers. We can upload and download the files/ data via the internet as it is a pool of knowledge. We can access or obtain information as needed. It is quite popular because of the variety of senders available on the Internet. Web services have grown in popularity as a result of these offerings. To access/exchange a large amount of data such as software, audio clips, video clips, text files, other documents, etc., we require internet services. We must use an Internet service to connect to the Internet. Data can be sent from Internet servers to your machine via Internet service. Some of the internet services are FTP, Telnet, VoIP, etc.

What is a wireless access point (AP) in a wireless LAN?

• wireless device itself

• all the nodes in the network

• a device that allows wireless devices to connect to a wired network

• a device that allows both wired and wireless devices to connect to a wired network.

Answer explanation

Wireless access points (APs or WAPs) are networking devices that allow Wi-Fi devices to connect to a wired network. They form wireless local-area networks (WLANs).

An access point acts as a central transmitter and receiver of wireless radio signals. Mainstream wireless APs support Wi-Fi and are used in homes, public internet hotspots, and business networks to accommodate wireless mobile devices. The access point can be incorporated into a wired router or a stand-alone router.

__________ is a type of network that an organization can only share with its customers.

• Intranet

• MiFi

• Extranet

• WLAN

Answer explanation

An extranet is a controlled private network allowing customers, partners, vendors, suppliers and other businesses to gain information, typically about a specific company or educational institution, and do so without granting access to the organization's entire network. An extranet is often a private part of a website. It is restricted to select users through user IDs, passwords and other authentication mechanisms on a login page.