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networking > Network > Flashcards

Network Flashcards

1
Q
  1. What is the general purpose of a protocol? Provide examples
A
  • Protocol purpose: Define communication rules (e.g., HTTP, SMTP).
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2
Q
  1. Describe the OSI model.
A
  • OSI model: 7-layer network framework.
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3
Q
  1. Explain the encapsulation process. Provide example.
A
  • Encapsulation: Add headers to data (e.g., TCP/IP).
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4
Q
  1. Explain the purpose of the ARP protocol. Provide example.
A
  • ARP purpose: Map IP to MAC (e.g., resolving destinations).
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5
Q
  1. Explain the function of a switch. Provide examples.
A
  • Switch function: Forward data by MAC (e.g., local network).
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6
Q
  1. Compare LAN and WAN.
A
  • LAN vs. WAN: Local vs. wide area network.
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7
Q
  1. Describe the TCP/IP model.
A
  • TCP/IP model: 4-layer networking model.
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8
Q
  1. Explain the function of a router. Provide example.
A
  • Router function: Connect, route data (e.g., internet).
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9
Q
  1. Explain the purpose of the DNS service. Provide example.
A
  • DNS purpose: Translate domain to IP (e.g., www.example.com).
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10
Q
  1. Physical topology, explain and examples
A
  • to how devices are physically connected in a network. It defines the layout of cables, connections, and devices.
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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.

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12
Q
  1. What is the general goal of Standards Organizations? Provide examples.
A
  • Standards Orgs: Set tech standards (e.g., IEEE, ISO).
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13
Q
  1. Explain the function of a server in the network. Provide example.
A
  • Server role: Provide services (e.g., web hosting).
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14
Q
  1. Explain the operations of the DHCP service. Provide example.
A
  • DHCP: Assign IP, config automatically (e.g., IP allocation).
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15
Q
  1. Describe the fiber optic cable and the idea of transmission.
A
  • Fiber optic cable: Uses light for data, fast and reliable.
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16
Q
  1. What is modulation? Provide examples.
A
  • Modulation: Varies signal (e.g., AM, FM, QAM).
17
Q
  1. Explain the cancelation effect in the UTP cable.
A
  • UTP cable cancelation: Twisted pairs counter interference.
18
Q
  1. What is encoding? Provide examples.
A
  • Encoding: Converts data format (e.g., Manchester, Base64).
19
Q
  1. Explain the limitations of wireless transmission.
A
  • Wireless limitations: Range, interference, security.
20
Q
  1. What are the benefits of UTP cabling for LAN?
A
  • Benefits of UTP cabling: Cost-effective, reliable, EMI-immune.
21
Q
  1. Why does the IPv4 network growth is limited?
A
  • IPv4 limit: Limited addresses (4.3 billion).
22
Q
  1. Explain the BYOD term and challenges related to it.
A
  • BYOD: Personal devices for work, security challenges.
23
Q
  1. Explain the Internet of Things and the challenges related to it.
A
  • IoT: Networked devices, challenges: security, privacy, interoperability.
24
Q
  1. What are the benefits of using IPv6 instead of IPv4?
A
  • IPv6 benefits: Larger address space, enhanced security, auto-configuration.
25
Q
  1. How ARP has been replaced in the IPv6 network?
A
  • ARP in IPv6: Replaced by Neighbor Discovery Protocol (NDP).
26
Q
  1. Compare link-local and global unicast addresses in IPv6.
A
  • IPv6 addresses: Link-local (local network), global unicast (internet).
27
Q
  1. Provide an example of the security system and explain its purpose.
A
  • Security system example: Fingerprint access control, authorized entry.
28
Q
  1. Explain the general idea of DoS attacks. Provide example.
A
  • DoS attacks: Overwhelm network to disrupt it (e.g., website flooding).
29
Q
  1. What does the AAA term mean?
A
  • AAA: Authentication, Authorization, Accounting in security.
30
Q
  1. Provide and explain four classes of physical threats.
A
  • Physical threats: Environmental, theft, eavesdropping, unauthorized access.
31
Q
  1. Why security is especially important in wireless communication?
A
  • Wireless security: Crucial due to eavesdropping, data theft, extended network boundaries.

networking (1 decks)

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