Computer Networking

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: 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: 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) 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) All of the above
TCP/IP, NetBEUI and IPX/SPX are all network protocols.

note!Answer: C) Both a and b
Routers connect networks, and are used both within LANs and between LANs and WANs.

note!Answer: B) Fiber optic cable
SONET (Synchronous Optical Networking) is a standard for data transmission over fiber optic cable.

note!Answer: C) Tim Berners Lee
Tim Berners-Lee invented the World Wide Web at CERN in 1989–1991.

note!Answer: B) Department of defense
ARPANET was developed by the US Department of Defense's Advanced Research Projects Agency.

note!Answer: C) 30th anniversary
ARPANET's first message was sent in 1969, so 1999 marked the 30th anniversary of the internet.

note!Answer: B) BNC
The BNC connector is the standard connector for coaxial cable. RJ-45 is used for twisted-pair cable.

note!Answer: D) Both a and c
Networking lets users share files, folders, and peripherals such as printers. Sharing electricity is not a networking benefit.