Network Principles - Network Theory - IP operations

8 important questions on Network Principles - Network Theory - IP operations

What is the meaning of the IPv4 DS Field?

Differentiated Services Field. Orginally called ToS byte.

ToS field is a six-bit Differentiated Services Code Point (DSCP) field[2] and a two-bit Explicit Congestion Notification (ECN) field

What is the meaning of the IPv4 Identification Field?

Used by IP packet fragmentation process.

If a single packet is fragmented into multiple packets, all fragments of the orignal packter contain the same identifier so that the original packet can be reassembled.

What is the meaning of the IPv4 Flags Field?

3 bits used by the IP packet fragmention process


-bit 0:reserved
-bit 1: Don't Fragment (DF)
-bit 2: More Fragments (MF)
 
  • Higher grades + faster learning
  • Never study anything twice
  • 100% sure, 100% understanding
Discover Study Smart

What is the meaning of the IPv4 Fragment Offset Field?

A number set in a fragment of a larger packet that identifies the fragment's location in a larger original packet.

What is the meaning of the IPv4 Protocol Field?

Identifies content of data portion of the IP packet.

Eg protocol 6 implies TCP header is first thing in IP packet.

What command does a router send when the ttl is expired?

ICMP TTL exceeded error message

ICMP type 11 code 0

What is the minimum and maximum MTU on an interface?

Mininum 128 byte
Maximum depends on interface

What is the command to configure IP MTU?

(config-if)# ip mtu bytes

The question on the page originate from the summary of the following study material:

  • A unique study and practice tool
  • Never study anything twice again
  • Get the grades you hope for
  • 100% sure, 100% understanding
Remember faster, study better. Scientifically proven.
Trustpilot Logo