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Types of Computer Networks
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1
Question
What is a network?
Answer
Two or more computers linked to transmit data, like the internet.
2
Question
What geographical scope defines a Local Area Network (LAN)?
Answer
Small area, usually a single building or site.
3
Question
What are common uses of LANs in businesses?
Answer
Sharing peripherals like printers, central file storage, software installation and backups.
4
Question
How does a Wireless Local Area Network (WLAN) differ from a LAN?
Answer
Uses wireless connections instead of wired.
5
Question
What benefits does a WLAN provide over a wired LAN?
Answer
No trailing cables, no need for physical access points.
6
Question
What drawbacks does wireless connectivity introduce to a LAN?
Answer
Reduced range and speed, easier attacks.
7
Question
What is a Storage Area Network (SAN)?
Answer
Specialized high-speed LAN for block-level data storage access.
8
Question
How is a SAN kept separate from a regular LAN?
Answer
Dedicated only for storage, no other data transfer.
9
Question
When is a SAN particularly useful?
Answer
For large, expanding data storage requirements.
10
Question
What advantage does separating SAN storage provide?
Answer
Easy expansion of storage capabilities.
11
Question
What geographical scope defines a Wide Area Network (WAN)?
Answer
Large area, such as a country or the world.
12
Question
What is the most common example of a WAN?
Answer
The internet.
13
Question
How do businesses typically use WANs?
Answer
Connect LANs across different office locations to share data.
14
Question
Why are dedicated business WANs expensive?
Answer
They require significant infrastructure investment.
15
Question
What is a Personal Area Network (PAN)?
Answer
Network connecting devices within a single person's range.
16
Question
What are examples of devices connected in a PAN?
Answer
Smartphone to laptop, or wearable like a smartwatch.
17
Question
How is a PAN used in business contexts?
Answer
Connecting laptop to smartphone for mobile broadband access.
18
Question
What protocols does an intranet use?
Answer
Common internet protocols like TCP/IP.
19
Question
What services does an intranet provide internally?
Answer
Internet-like services such as internal email or private websites.
20
Question
What is an extranet?
Answer
Private intranet accessible by selected external organizations or customers.
21
Question
How does an extranet limit access?
Answer
Only a part of the intranet is made available to third parties.
22
Question
What is the purpose of an extranet?
Answer
Share information with suppliers or customers without full network access.
23
Question
What is the internet?
Answer
Worldwide network of interconnected smaller networks for global communication.
24
Question
How do businesses use the internet beyond local networks?
Answer
Access LAN from home, email, VoIP with suppliers or customers.
25
Question
What does 'the Cloud' refer to?
Answer
Storing data and processing on internet-accessed servers, not local devices.
26
Question
What benefits does cloud computing offer organizations?
Answer
Flexible to business needs, low subscription fees.
27
Question
Why do modern devices often require wireless integration in LANs?
Answer
Many lack ethernet ports and rely on wireless.
28
Question
What benefit does wireless integration provide for visitors?
Answer
Easy connection to network resources, like sharing internet.
29
Question
What major vulnerabilities does wireless integration introduce?
Answer
Easier malicious access, potential for data theft or malware.
30
Question
How can unauthorized WLAN users harm a network?
Answer
Access confidential data, infect with malware, use packet sniffers.