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08 - Network Hardware

 1. Networks make it easier to share viruses and other malware. They can quickly spread and damage files on many computers via a network

  True

  False

 2. In order to create a physical network we need certain hardware. For wired networks the transmission media would be what is used to carry the data around the network - effectively this is the ___________

  routers

  computers

  cables

  satellites

 3. There are different types of cables: 1. Coaxial 2. Twisted pair cable and 3. Fibre-optic cable. Which one of the following is a description of coaxial cable?
networkhardware_typesofcables.png

  #2

  #1

  #3

  None of the above

 4. Which one of the following describes the Fibre Optic Cable?
networkhardware_fibreoptic.jpg

  None of the above

  #3

  #1

  #2

 5. Along the cable, data is sent in binary. Sometimes 'interference' can occur and the signals from other electrical sources (such as radiation or other large electrical devices in the area) can .....

  can cause the data (bits) to flip - which is what causes errors in the sent data

  can cause the data to leak back into the electrical source that is causing the interference

  can cause the data to be transformed into hex instead of binary, causing obvious issues

  can cause the data to be sent back in reverse

 6. Another very important piece of hardware that is needed to connect the computer to the transmission media and to the network comes as standard on most computers - this is the ____________________.
networkhardware_networkinterfacecard.jpg

  Network Inner Commotion

  Network Interface Controller or Network Interface Card

  Network Internet Coaxial

  Neumann's Inventive Cable

 7. In a wireless network (like in most modern laptops) there is a piece of hardware called the WNIC (Wireless Network Interface controller) that works in the same way as the NIC except that....

  cables instead of wireless signals are used

  cables that go through the air are used instead of underground

  wireless signals instead of transmission media (cables) are used

  'cloud' cables that are fibre-optic in nature (e.g. thin and carry light) are used instead of co-axial cables

 8. In order for a computer to connect wirelessly to a network, the network will need to have _____________________________

  Switch

  WAP (Wireless Access Point)

  Gateway

  Router for Networks (RFN)

 9. Most WAPs will have security built in (e.g. you will need a username and password) but also will have at least three methods of encryption to choose from: What is the third?
networkhardware_wepkey.jpg

  WEP (Wired equivalent privacy)

  None of the above

  NEP (Network Ethernet privacy)

  SEP (Secured Encryption privacy)

 10. Routers, hubs, switches and bridges are all pieces of networking equipment that can perform slightly different tasks. A router can often incorporate hubs, switches and wireless access within the same hardware.

  FALSE

  TRUE

 11. Fill in the blanks
A ________ connects two similar networks (two LANS)

  Bridge

  Router

  Hub

  Network Interface Card

 12. Fill in the blanks
A _____, also called a network ____, is a common connection point
for devices in a network. Hubs are devices commonly used to 
connect segments of a LAN. The hub contains multiple ports. 

When a packet arrives at one port,
it is copied to the other ports so that all segments of the 
LAN can see all packets.
hub.jpg

  Router

  Switch

  Hub

  Gateway

 13. Fill in the blanks: A ___________connects a LAN or a machine to the internet (WAN)
router.jpg

  Switch

  Hub

  Router

  Modem

 14. Fill in the blanks: A _____________ stands for modulating demodulating device and it is responsible for converting digital signals into analogue and vice versa. It is often inbuilt into devices that are then connected to a phone line.
modem.gif

  Switch

  Network Interface Card (built inside a computer)

  Internet

  Modem

 15. A Mac Address is ______________________________.

  embedded in the hardware

  input into the software by the programmer

  given to the user on an official form

  put on the sticker (that is stuck on the hardware) - it can be removed