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WorksheetsNetwork Protocols and Layers
Total questions: 39
Worksheet time: 18mins
Provides the rules for file transfer between computers.
FTP
FPS
HTTP
SMTP
UDP
Provides the rules to be followed by a web server and a web browser when requesting and supplying data.
FTP
SFTP
HTTP
HTTPS
SMTP
Ensures that communication between a host and a client are secured by encrypting communications.
FTP
HTTPS
USD
URL
HTTP
A protocol that downloads emails onto a client computer and removes the mail message from the mail server.
SMTP
SFTP
POP
IMAP
HTTPS
A protocol that allows email messages to be read and stored on a messaging server.
SMTP
SFTP
POP
IMAP
HTTPS
Why are standards important in networking?
They allow hardware and software to interact across different manufacturers
They help keep systems private so that other products can’t interact with them
They allow governments to maintain complete control over the Internet
They provide paperwork for people who wouldn’t have anything else to do
Which of these Protocols deals with Email?
HTTP, TLS and DNS
POP, IMAP and SMTP
DCHP and FTP
IPv4 and IPv6
What is the purpose of the HTTP protocol?
When transferring large files, it is used to organise them and process the HTML code on the web page
It is used for email communication and sending emails
It makes the transfer of a webpages from the servers to the user’s device
It allows data to be communicated through a 4 Layer model
What does SMTP stand for?
Server Mail Transfer Protocol
Simple Mail Transition Protocol
Simple Mail Transfer Protocol
Server Mailing Transfer Procedure Question 39: A MAC Address is usually
Each network interface controller has a unique
MAC address
IP address
Signal
Protocol
Transmission control protocol (TCP) splits data into
segments
groups
parcels
packets
Which layer of the TCP/IP model splits data into packets and reassembles them at the destination?
Application
Transport
Internet
Network Access
In the layer model, if one layer is improved what happens
to the other layers?
They are updated
They break
They can no longer communicate
Nothing, layers are independent. That's the
point of them
The checksum in a data packet is used to...
ensure that all the data has arrived and is not corrupted
ensure that the packet has been sent to the right place
tell the computer what protocols were used
ensure that the user is logged on
A protocol is a set of (a) which dictate how devices communicate with each other.
Select the correct order of layers in the 4 layer model:
Application, Transport, Internet, Link
Transport, Internet, Link, Application
Link, Transport, Application, Internet
Internet, Application, Transport, Link
This protocol is used to load pages of a website.
(a)
What is an advantage for IMAP?
If you delete the email it is still stored in the server
You do not have to be logged in to the Internet to read your messages
Which protocol would be most suitable for accessing a banking website?
HTTPS
FTP
HTTP
Select TWO rules TCP/IP must follow?
Senders computer name
Packets are numbered
Error Check
None of the above
What is a network protocol?
Lets you connect to a device
Agreed way of transferring files between devices on a network
Agreed way of sending emails on a network
Agreed way of checking files for errors
IP (Internet Protocol) is responsible for packet switching
True
False
Select the network layer where IP address/Packet Number/Error check is completed.
Application Layer
Transport Layer
Internet Layer
Link/Physical Layer
What does HTTPS stand for?
Hyper Text Transfer Protocol
Hyper Text Transport Protocol Secure
Hyper Text Transport Protocol
Hyper Text Transfer Protocol Secure
Data packets can arrive at different times at the final location?
True
False
Before data transmission begins, devices send messages to one-another, completing a task called?
Data Transmission
Handshaking Process
Network Protocol
Packet Switching
Which one of these is NOT a valid IPv4 address?
122.122.2.2.
147.10.301.22
1.101.11.11
255.255.0.1
Every computer/phone has a unique IP address
True, if it is directly connected to the Internet
True
True, but only if it is turned on
False, only web servers have IP addresses
Which statement is true?
MAC addresses are looked up on the DNS
MAC addresses are IDs for Apple products (but not Microsoft)
MAC addresses are 100% unique
MAC addresses are usually written in 'dotted decimal'.
Which is true?
MAC addresses deal with individual 'hops' but IP addresses work across networks
MAC addresses and IP addresses are allocated by hardware manufacturers
MAC addresses are governed by the DNS but IP addresses are not
MAC addresses are hierarchical
Which one of these PROTOCOLS deals with moving packets of data across a network?
TCP/IP
HTTP
HTTPS
FTP
Which one of these protocols is used to form a request to see a webpage (or deliver a webpage)
HTTP
TCP/IP
POP3
IMAP
Which protocol would be used to transfer Internet banking commands?
HTTPS
POP3
HTTP
FTP
Which protocol would be used to upload a file to update your own website?
FTP
TCP/IP
POP3
IMAP
What would the POP3 protocol be used for?
Downloading emails to your device
Requesting a webpage
Uploading a file
A secure transaction such as Internet banking
What's the benefit of using IMAP instead of POP3?
IMAP is better when you have several devices to keep in sync
IMAP can use IPv6 IP addresses
IMAP can use HTTPS but POP3 can't
IMAP works on iPhones
SMTP...
Is used to send email and stands for Simple Message Transfer Protocol
Is an updated version of POP3
Is a secure protocol for things like credit card payments online
Is a mobile app that comes pre-installed on most phones
The TCP/IP protocol stack is built up in several layers because
It's just too complicated to put in one layer
If parts of the system change the rest of the layers are not affected
Layers help to reduce buffering
Different companies each put in their own layer
Internet data is not a continuous stream. It is divided into packets because
Routers need to deal with standard sized and labelled blocks of data
Packets need to be numbered and given IP addresses
There just isn't the bandwidth to deal with streams
Without packets the Internet would just be chaos
