1.3.1 Computing Networks, Connections and Protocols Flashcards
1
Q
What is bandwidth?
A
- Data transferred within a defined time period
2
Q
What is latency?
A
- Delay when data is sent
3
Q
What is range?
A
- Maximum distance data can be sent
4
Q
What is a routing protocol?
A
- Rules to find best routes
5
Q
What is transmission rate?
A
- Speed data travels
6
Q
What is a routing cost?
A
- Determine best route
- For network traffic
7
Q
What affects network performance?
A
- Bandwidth
- Latency
- Range
- Number of devices
8
Q
What is a DNS?
A
- Domain Name System
- A collection of servers
9
Q
What is packet switching?
A
- Files broke down
- Rebuilt at destination
10
Q
What is an IP address?
A
- String of numbers
- Locate devices
11
Q
What is a web browser?
A
- Software to browse WWW
12
Q
What is a URL?
A
- Uniform resource locator
- Website address
13
Q
What is a centralised network?
A
- Data at one location
14
Q
What is a distributed network?
A
- Data at multiple locations
15
Q
What is hosting?
A
- A server connected to client
- Providing a service
16
Q
If you host a web server, what are you responsible for?
A
- Security
- Back ups
- Tech support
- Analytics
17
Q
What is SaaS?
A
- Software as a service
18
Q
What does SaaS do?
A
- Software accessible across devices
- Hosted on remote servers
19
Q
What are the advantages of SaaS?
A
- Auto back ups
- Auto updates
- Auto save
- Across devices
20
Q
What are the disadvantages of SaaS?
A
- Subscription
- Internet access
- Less data control
21
Q
What is ethernet?
A
- Wired network
- Copper cables
22
Q
What is WiFi?
A
- Transmission through radiowaves
23
Q
What is HTTP/S?
A
- Hypertext transfer protocol / secure
- Identify, request and send web pages
24
Q
What is FTP?
A
- File transfer protocol
- Uploading and downloading files
25
What is POP?
- Post office protocol
- Protocol receives email
- Delivers email to address
- Deletes email
26
What is IMAP?
- Internet message access protocol
- Protocol receives email
- Delivers email to address
- Saves copy of email
27
What is SMTP?
- Simple message transfer protocol
- Sends email to email server
28
What is the TCP model?
- Transmission control protocol
- Application layer
- Transport layer
- Internet layer
- Link layer
29
What does the application layer do?
- Prepares data to be sent
- HTTP/S
- FTP
- POP
- SMTP
30
What does the transfer layer do?
- Data into segments
- Port number ( data knows where to go )
- TCP
- UDP
31
What does the internet layer do?
- Segments into IP packets
- IP address
32
What does the link layer do?
- Transfer IP packets error free
- Establish connections between client and server
- Ethernet
- Fibre optic
33
What is data encapsulation?
- Packaging data
34
What is data decapsulation?
- Unpackaging data
35
What is the OSI model?
- Seven layer model
- Demonstrates how data is transferred
36
What is the presentation layer?
- Application layer
- Correct file format
37
What is the session layer?
- Application layer
- Establishes a connection
38
What is the physical layer?
- Link
- How data is transmitted
39
What is a compiler?
- Translates entire code at once
- Stored for later use
40
What is an interpreter?
- Translates line by line
- Retranslated every execution
41
What is an assembler?
- Translates assembly language to machine code
42
What is source code?
- High level programming language
43
What is object code?
- Machine code
