Network Flashcards
(31 cards)
1
Q
- What is the general purpose of a protocol? Provide examples
A
- Protocol purpose: Define communication rules (e.g., HTTP, SMTP).
2
Q
- Describe the OSI model.
A
- OSI model: 7-layer network framework.
3
Q
- Explain the encapsulation process. Provide example.
A
- Encapsulation: Add headers to data (e.g., TCP/IP).
4
Q
- Explain the purpose of the ARP protocol. Provide example.
A
- ARP purpose: Map IP to MAC (e.g., resolving destinations).
5
Q
- Explain the function of a switch. Provide examples.
A
- Switch function: Forward data by MAC (e.g., local network).
6
Q
- Compare LAN and WAN.
A
- LAN vs. WAN: Local vs. wide area network.
7
Q
- Describe the TCP/IP model.
A
- TCP/IP model: 4-layer networking model.
8
Q
- Explain the function of a router. Provide example.
A
- Router function: Connect, route data (e.g., internet).
9
Q
- Explain the purpose of the DNS service. Provide example.
A
- DNS purpose: Translate domain to IP (e.g., www.example.com).
10
Q
- Physical topology, explain and examples
A
- to how devices are physically connected in a network. It defines the layout of cables, connections, and devices.
11
Q
logical topology – explain and provide examples.
A
Logical topology describes how data logically flows in a network, irrespective of physical connections. It focuses on routing, addressing, and data paths. Examples include Ethernet, IP routing, and Wi-Fi networks.
12
Q
- What is the general goal of Standards Organizations? Provide examples.
A
- Standards Orgs: Set tech standards (e.g., IEEE, ISO).
13
Q
- Explain the function of a server in the network. Provide example.
A
- Server role: Provide services (e.g., web hosting).
14
Q
- Explain the operations of the DHCP service. Provide example.
A
- DHCP: Assign IP, config automatically (e.g., IP allocation).
15
Q
- Describe the fiber optic cable and the idea of transmission.
A
- Fiber optic cable: Uses light for data, fast and reliable.
16
Q
- What is modulation? Provide examples.
A
- Modulation: Varies signal (e.g., AM, FM, QAM).
17
Q
- Explain the cancelation effect in the UTP cable.
A
- UTP cable cancelation: Twisted pairs counter interference.
18
Q
- What is encoding? Provide examples.
A
- Encoding: Converts data format (e.g., Manchester, Base64).
19
Q
- Explain the limitations of wireless transmission.
A
- Wireless limitations: Range, interference, security.
20
Q
- What are the benefits of UTP cabling for LAN?
A
- Benefits of UTP cabling: Cost-effective, reliable, EMI-immune.
21
Q
- Why does the IPv4 network growth is limited?
A
- IPv4 limit: Limited addresses (4.3 billion).
22
Q
- Explain the BYOD term and challenges related to it.
A
- BYOD: Personal devices for work, security challenges.
23
Q
- Explain the Internet of Things and the challenges related to it.
A
- IoT: Networked devices, challenges: security, privacy, interoperability.
24
Q
- What are the benefits of using IPv6 instead of IPv4?
A
- IPv6 benefits: Larger address space, enhanced security, auto-configuration.
25
5. How ARP has been replaced in the IPv6 network?
* ARP in IPv6: Replaced by Neighbor Discovery Protocol (NDP).
26
6. Compare link-local and global unicast addresses in IPv6.
* IPv6 addresses: Link-local (local network), global unicast (internet).
27
1. Provide an example of the security system and explain its purpose.
* Security system example: Fingerprint access control, authorized entry.
28
2. Explain the general idea of DoS attacks. Provide example.
* DoS attacks: Overwhelm network to disrupt it (e.g., website flooding).
29
3. What does the AAA term mean?
* AAA: Authentication, Authorization, Accounting in security.
30
4. Provide and explain four classes of physical threats.
* Physical threats: Environmental, theft, eavesdropping, unauthorized access.
31
5. Why security is especially important in wireless communication?
* Wireless security: Crucial due to eavesdropping, data theft, extended network boundaries.
