Font size
Worksheets1.3 Networks Assessment Review
Total questions: 14
Worksheet time: 27mins
A (a) is a set of rules that allow devices on a network to (b)
Name the system which matches URLs to IP addresses on the web.
File Transfer Protocol (FTP)
Transfer Control Protocol (TCP)
Internet Protocol (IP)
Domain Name System (DNS)
Draw a star network.
In a WAN the computers are (a) and therefore (b) a mile apart. Communication medium is not (c) by the company, they rent the infrastructure.
Put each of these statements into the correct category.
It is easy to add a new node or device
Fewer data collisions can occur
If a node or device fails it does not affect
the rest of the network
A signal does not need to be transmitted to
all computers in the network
Messages should always get through as they have many possible routes on which to travel
Multiple connections mean (in theory) that no node should be isolated
Organize these options into the right categories:
Star
Mesh
Client-Server
Peer-to-Peer
LAN
WAN
TCP
IP
SMTP
FTP
IMAP
HTTP
HTTPS
POP(3)
Is each statement referring to IP addresses or MAC addresses?
Can changed and reallocated as needed
4 bytes long
Written in denary
Configured by software
Used across a WAN/Internet
Fixed during manufacture
6 bytes long
Written in Hex
Configured by hardware
used within a LAN
Describe what happens after the IP address has been found and returned to the user's computer:
(a)
The packet is given the address and a number.
(b)
The packet are received by the host server.
The server checks if all the packets have arrived.
(c)
If they have arrived packets are put in order.
The request is processed by the web server.
TCP/IP is a set of protocols based on layers. With regards to network protocols, define what is meant by a 'layer'.
A division of network functionality.
Which of these is not a reason why layers are used in the TCP/IP model?
Layer are self contained so developers can concentrate on one aspect at a time.
Layers can be taken out and edited without affecting the other layers.
Different layers can interface different hardware and use different protocols.
Updates and back-ups can be made centrally.
Categorise the following statements as being related to either the Peer-to-Peer Model or Client-Server Model.
Data is stored on each device.
Data is stored centrally.
Back-ups need to by made by each device.
Back-ups are made centrally.
Updates can be made across all devices at the same time.
Updates need to be made on each device individually.
Categorise the following statements as being related to either the Star or Mesh topology.
Devices are all connected to a central hub/switch
Data can travel a variety of routes to get to its destination
Fewer data collisions can occur as they travel down their own connections
If one node fails it may affect the routes the data can travel
Data is sent directly to the destination
Data is sent via other devices.
(a) - enables communication over the internet.
(b) - governs communication between a webserver and a client.
(c) includes secure encryption to allow transactions to be made over the internet.
(d) - governs the transmission of files across a network and the internet.
(a) - governs the sending of email over a network to a mail server.
POP and IMAP - govern retrieving emails from email servers. (b) is an older implementation, largely replaced by (c)
