IP Addressing - IPv4/IPv6 Quiz
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Questions and Answers

What is the primary purpose of an IP address in a computer network?

  • To identify the network and provide location addressing (correct)
  • To manage hardware resources
  • To encrypt data packets
  • To enhance graphical user interfaces

Which organization is primarily responsible for managing the global IP address space?

  • World Wide Web Consortium (W3C)
  • Internet Assigned Numbers Authority (IANA) (correct)
  • Internet Protocol Suite (IPS)
  • National Institute of Standards and Technology (NIST)

How many bits make up an IPv4 address?

  • 32 bits (correct)
  • 16 bits
  • 128 bits
  • 64 bits

Which of the following notations is used to represent IPv4 addresses?

<p>Dot-decimal notation (D)</p> Signup and view all the answers

What is the main purpose of a subnet mask in the context of IP addressing?

<p>To indicate the number of bits used for the network part of the address (C)</p> Signup and view all the answers

What is the limit of the address space for IPv4 addresses?

<p>Around 4.29 billion addresses (D)</p> Signup and view all the answers

Which of the following statements about reserved IP addresses is true?

<p>Some addresses are reserved for private networks and multicast (B)</p> Signup and view all the answers

Which version of the Internet Protocol is mostly familiar to users today?

<p>Internet Protocol version 4 (IPv4) (D)</p> Signup and view all the answers

What is the purpose of a subnet mask in IP addressing?

<p>It separates the network part from the host part of an IP address. (A)</p> Signup and view all the answers

What is a characteristic of private IP addresses?

<p>They can be reused in different private networks. (B)</p> Signup and view all the answers

Why do private addresses typically rely on NAT to connect to the Internet?

<p>They lack the ability to communicate publicly. (B)</p> Signup and view all the answers

Which notation represents a subnet mask effectively?

<p>Dotted decimal notation (D)</p> Signup and view all the answers

What happens to private IP addresses at the Intranet gateway when using NAT?

<p>They are logically replaced with a public IP address. (C)</p> Signup and view all the answers

How are IPv4 Private addresses allocated in the Indian Railways?

<p>According to a structured scheme defined by the Railway Board. (A)</p> Signup and view all the answers

What is required for any Intranet network to access Internet facilities?

<p>At least one public IP address. (A)</p> Signup and view all the answers

Which statement best describes the allocation of private IP addresses?

<p>They can be duplicated across different private networks. (C)</p> Signup and view all the answers

What is the primary responsibility of ISPs?

<p>To maintain the network infrastructure and ensure Internet access. (A)</p> Signup and view all the answers

How many bits are used in an IPv6 address compared to an IPv4 address?

<p>128 bits for IPv6 and 32 bits for IPv4. (B)</p> Signup and view all the answers

What feature of IPv6 allows devices to configure themselves automatically?

<p>Stateless address auto-configuration. (B)</p> Signup and view all the answers

Which statement is true about the header improvements in IPv6?

<p>The IPv6 header is simpler and does not use checksums. (D)</p> Signup and view all the answers

Why is NAT no longer needed with IPv6?

<p>Because every device has a globally unique IPv6 address. (A)</p> Signup and view all the answers

Which of the following is a valid representation of an IPv6 address?

<p>1234::5678:9abc (B)</p> Signup and view all the answers

What is a key feature of IPSec in IPv6?

<p>It provides enhanced security by enabling secure tunnels without user action. (C)</p> Signup and view all the answers

What does the migration from IPv4 to IPv6 indicate about their compatibility?

<p>IPv4 and IPv6 are not compatible at all. (D)</p> Signup and view all the answers

What is the main function of the Dual Stack Method in the transition from IPv4 to IPv6?

<p>It enables IPv4 and IPv6 to coexist on the same device and network. (C)</p> Signup and view all the answers

Which statement accurately describes the Tunneling method?

<p>It encapsulates IPv6 traffic within IPv4 packets to enable communication. (C)</p> Signup and view all the answers

What does the Translation method (SIIT and NAT64) specifically facilitate?

<p>Direct communication between IPv4 only and IPv6 only end devices. (D)</p> Signup and view all the answers

In the Dual Stack Method, how does the computer determine whether to use IPv4 or IPv6?

<p>It follows predetermined sets of rules. (A)</p> Signup and view all the answers

What is a key feature of the Tunneling method regarding existing network infrastructure?

<p>It allows communication without the need to upgrade the existing infrastructure. (B)</p> Signup and view all the answers

Which of the following describes how SIIT and NAT64 function in the Translation method?

<p>They perform address and port translation to facilitate communication. (A)</p> Signup and view all the answers

What is a distinct advantage of using the Dual Stack Method during the migration process?

<p>It allows for gradual transition while maintaining service for both protocols. (B)</p> Signup and view all the answers

Which of the following configurations does NOT exist within the Tunneling method?

<p>Gateway-to-Gateway (A)</p> Signup and view all the answers

Flashcards

IP Address

A unique identifier for a device connected to a network using the Internet Protocol (IP).

IANA (Internet Assigned Numbers Authority)

The international organization responsible for assigning and managing IP addresses.

IPv4

The original version of the Internet Protocol, using 32 bits for addresses.

Sub-network

A set of addresses within a larger network.

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Network Prefix

The portion of an IP address that identifies the network.

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Host Identifier

The portion of an IP address that identifies a specific device within a network.

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Subnet Mask

A 32-bit number used to divide an IP address into network and host parts.

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Dot-Decimal Notation

A common way to represent IPv4 addresses, using four decimal numbers separated by dots, e.g., 172.16.254.1

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Private IP Addresses

A special range of IP addresses used within a private network. They are not globally unique and do not require registration.

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Public IP Addresses

A special range of IP addresses recognized globally, used to connect to the internet. They need to be unique across the entire internet.

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Network Address Translation (NAT)

A technique that translates private IP addresses used within a network to a public IP address when communicating with external networks, like the internet.

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Indian Railways Private Network Address

The IP address range 10.0.0.0/8, used by Indian Railways for their internal networks.

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Internet Service Provider (ISP)

A company that provides Internet access to organizations and individuals.

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Subnetting

A process of dividing a larger network into smaller subnetworks. This helps to improve network efficiency and security.

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Private Network

A private network that uses IP addresses for internal communication without needing globally unique addresses. It typically connects to the internet via NAT.

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IPv4 to IPv6 Migration

The process of converting an IPv4 address to an IPv6 address.

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IPv6 Quartet

A group of 4 hexadecimal digits within an IPv6 address, separated by a colon.

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IPv6 Addressing Scheme

A system used to represent IPv6 addresses, using 32 hexadecimal numbers in 8 quartets, separated by colons. It allows for simplified address representation.

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IPSec in IPv6

It's an in-built security feature in IPv6 that automatically creates a secure tunnel between two devices without user intervention.

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IPv6 Header Improvements

The IPv6 header is simplified and does not require a checksum calculation, making data transmission more efficient.

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No NAT needed in IPv6

IPv6 addresses are globally unique, eliminating the need for NAT, which translates private addresses to public ones. Devices can directly communicate on the internet.

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Stateless Address Auto-Configuration in IPv6

IPv6 hosts can automatically configure themselves with an address without needing a DHCP server, simplifying network setup.

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Dual Stack Method

A method for transitioning from IPv4 to IPv6 where both protocols coexist on the same device and network. Devices like PCs, routers, and switches are equipped with both IPv4 and IPv6 drivers, allowing them to communicate using either protocol.

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Tunneling (IPv6)

A technique used in IPv6 migration to allow IPv6 hosts to communicate over IPv4 infrastructure. IPv6 traffic is encapsulated within IPv4 packets, enabling communication between IPv6 devices even if the underlying network is still IPv4.

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Translation (SIIT & NAT64)

A method for IPv6 migration that allows communication between IPv4-only and IPv6-only devices. Gateways are configured with special protocols, such as SIIT (Stateless IP/ICMP Translation) and NAT64, to translate IPv6 packets into IPv4 packets and vice versa.

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NAT64

A protocol that allows communication between IPv4 and IPv6 devices by translating addresses and ports. The gateway acts as a translator between the two protocols, converting IPv6 packets into IPv4 packets and vice versa.

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DNS-64

A mechanism that enables IPv6 devices to communicate with IPv4-only networks by modifying IPv6 packets using translation methods like NAT64.

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IPv6-only

A method for migrating from IPv4 to IPv6 where devices only use IPv6 addresses, while gateways handle translation between IPv4 and IPv6.

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IPv4/IPv6 Coexistence

A gradual transition process where both IPv4 and IPv6 coexist and work together until IPv6 completely replaces IPv4.

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Study Notes

IP Addressing - IPv4/IPv6

  • An IP address is crucial for devices on a network using the Internet Protocol, identifying and locating them.
  • The global IP address space is managed by the Internet Assigned Numbers Authority (IANA) and five regional registries (RIRs).
  • Two main versions of IP addressing exist: IPv4 (common) and IPv6 (future).
  • IPv4 addresses are 32 bits, limiting the address space to about 4.29 billion unique addresses.
  • Certain IPv4 addresses are reserved for special purposes (private networks, multicast addressing).
  • IPv4 addresses are represented in dotted-decimal notation (e.g., 172.16.254.1).
  • Each number in the dotted decimal notation (4 numbers separated by dots) represents 8 bits, totaling 32 bits.
  • IP networks can be divided into sub-networks.
  • A subnet mask defines how an IP address is divided into network and host parts.
  • Private IP addresses are used in networks that don't directly connect to the internet.
  • Specific ranges of IP addresses are designated as private (e.g., 10.0.0.0/8, 172.16.0.0/12, 192.168.0.0/16).
  • These are used within a network, not directly on the internet.
  • IPv6 addresses use 128 bits, significantly expanding the available address space.
  • IPv6 addresses are represented in hexadecimal format, using colons to separate groups of hexadecimal digits (e.g., 2001:0DB8:AC10:FE01::).
  • IPv6 uses a simpler header structure
  • The omission of leading zeros is allowed in IPv6 addressing.
  • Four consecutive zero bits in an IPv6 address can be compressed to '::'.
  • IPv4 and IPv6 are not directly compatible. Transition methods exist (dual stack, tunneling).
  • Dual Stack Method allows IPv4 and IPv6 to coexist on the same networks.
  • Tunneling encapsulates IPv6 packets within IPv4 packets to allow IPv6 communication through IPv4 networks
  • Translation methods (NAT64, SIIT) are used to bridge IPv4 and IPv6 networks

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Related Documents

Chapter 31: IP Addressing - IPV4/IPV6 PDF

Description

Test your knowledge on IP addressing, including the differences between IPv4 and IPv6. This quiz covers key concepts like the structure of IP addresses, subnetting, and the management of the global IP address space. Perfect for anyone looking to enhance their understanding of network protocols.

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