Computer & IT

note!Answer: B) Have a unique IP address
Every host on the Internet needs a unique IP address to be identified and reached.

note!Answer: A) 4 byte long
IPv4 addresses are 32 bits, which is 4 bytes long.

note!Answer: A) Packet switching
The Internet uses packet switching to send data in small packets over shared links.

note!Answer: C) NIC card
A Network Interface Card (NIC) connects a computer to a LAN.

note!Answer: A) Hub
A hub acts as a central connection point where network cables meet.

note!Answer: A) Uniform resource locator
URL stands for Uniform Resource Locator, the address of a web resource.

note!Answer: B) The intranets of two co operating organization interconnected via a secure leased line
An extranet links the intranets of cooperating organizations, often through a secure connection.

note!Answer: C) A collection of linked information residing on computer connected by the internet
The WWW is a collection of linked documents and information stored on internet-connected computers.

note!Answer: B) Uniform resource locator
A web page is located using its URL, which stands for Uniform Resource Locator.

note!Answer: B) Transmission control protocol
TCP stands for Transmission Control Protocol, a core protocol of the internet.

note!Answer: D) Network of network
The Internet is a global network of interconnected networks.

note!Answer: D) All of the above
File, print and database services are all typical services provided over a network.

note!Answer: B) Mega Bits Per Second
Mbps means megabits per second, a unit of data transfer rate.

note!Answer: A) Voice over internet protocol
VoIP stands for Voice over Internet Protocol, used for voice calls over IP networks.

note!Answer: C) Both a and b
A web page can be static (fixed content) or dynamic (content generated on demand), so it may contain both.

note!Answer: A) Time Burners Lee
The World Wide Web was invented by Tim Berners-Lee in 1989.

note!Answer: B) Outlook express
Outlook Express is an email client, not a web browser.

note!Answer: B) Altavista.com
AltaVista is a well-known search engine; the others are a movie site, an email service and a news site.

note!Answer: C) A computer that stores web pages and that is always connected to the internet
A web server is a computer that stores web pages and serves them over the internet.

note!Answer: D) Back
The Back button returns the browser to the previously viewed page.