10 questions🇬🇧English
📡 TCP/IP & Network Protocols – A-level
Computer Science · A-level — the TCP/IP stack, common protocols, ports, packet switching and DNS
Make it your own private quiz and change anything you like
Questions
At which layer of the TCP/IP stack does HTTP operate?
Internet layer
Application layer
Link layer
Transport layer
20s
What is the main role of the Domain Name System (DNS)?
To translate IP addresses into MAC addresses
To encrypt data sent between web servers
To assign IP addresses to new devices
To translate domain names into IP addresses
20s
Which protocol does an email client use to download messages from a mail server to the user's device?
FTP
HTTP
SMTP
POP3
20s
Which well-known port number is used by default for HTTPS?
443
25
21
80
20s
On the sending computer, what happens to data as it passes down each layer of the TCP/IP stack?
Each layer encrypts the data
Each layer removes a header
Each layer compresses the data
Each layer adds its own header
30s
In networking, what is a socket?
An IP address combined with a port number
A MAC address combined with an IP address
A domain name combined with a port number
A physical port on the back of a router
30s
How many bits long is a standard MAC address, such as one used by an Ethernet network card?
64 bits
32 bits
128 bits
48 bits
20s
In a packet-switched network, why might packets from the same message arrive at the destination out of order?
Packets are sent one after another on one fixed path
Each packet may take a different route
Larger packets are always sent first
Routers sort packets by their size
30s
As a packet is forwarded through several routers, which addresses are typically replaced at every hop?
The source and destination IP addresses
Only the destination IP address
The source and destination MAC addresses
The source and destination port numbers
30s
What does a gateway do that distinguishes it from a router?
It translates between networks using different protocols
It connects networks using the same protocols
It assigns domain names to devices on a network
It forwards frames using only MAC addresses
30s