CNIT 344 Exam 2 Guaranteed A+
IPv4 Characteristics: ️ - Connectionless: The sender doesn't know if the receiver is present, if the packet arrived, or if the
receiver can read the packet. - Unreliable: IPv4 lacks the capability to manage and recover from undelivered or corrupted packets, s...
- Connectionless: The sender doesn't know if the receiver is present, if the packet arrived, or if the
receiver can read the packet.
- Unreliable: IPv4 lacks the capability to manage and recover from undelivered or corrupted packets, so
reliability is managed by other protocol layers.
- Media Independent.
---
Length of IPv4 header: ✔️
32 bits (4 bytes), a key element of the IP packet header.
---
Type of Service: ✔️
A vital part of the IP packet header, comprising 8 one-bit fields used for Quality of Service (QoS) and
Differentiated Services Code Point (DSCP).
---
Flag and Fragment Offset: ✔️
Key components in the IP packet header used for the reconstruction of any fragmented packets.
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Time to Live (TTL): ✔️
, A key part of the IP packet header that sets the maximum number of hops before being marked as
undeliverable.
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Protocol: ✔️
Indicates the upper-layer protocol (TCP/UDP) in the IP packet header.
---
Source and Destination Address: ✔️
Two 32-bit binary values found in the IP packet header.
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Network and Host: ✔️
The two components of an IPv4 address.
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Default Gateway: ✔️
The address of the router interface, which must be on the same network as all hosts.
---
Address Resolution: ✔️
The process of mapping a hardware address to a higher-layer protocol address (typically maps an IPv4
address to a specific MAC address).
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