Network Engineering

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Answer score of 25 or more. This badge can be awarded multiple times.
Awarded 146 times.
Why do we need a 3-way handshake? Why not just 2-way?
Awarded Dec 4, 2022 at 20:40
What is the use of NTP server when devices have accurate time?
Awarded Nov 11, 2022 at 16:00
What is the use of NTP server when devices have accurate time?
Awarded Nov 8, 2022 at 21:40
Difference between unresponsive (*) and unreachable (!H) hosts in traceroute output
Awarded Aug 18, 2022 at 15:43
acknowledgment by TCP does not guarantee that the data has been delivered
Awarded May 31, 2022 at 13:27
IPv6 address space layout best practices
Awarded May 27, 2022 at 9:55
Does CIDR really "do away" with IP address classes?
Awarded May 22, 2022 at 18:04
Difference between control plane, data plane and management plane?
Awarded Apr 3, 2022 at 13:55
Why is Packet Size Limited?
Awarded Mar 30, 2022 at 20:56
Why does DHCP use UDP and not TCP?
Awarded Jan 9, 2022 at 14:41
What is the difference between MSS and MTU?
Awarded Dec 22, 2021 at 16:31
Reason for both a MAC and an IP address
Awarded Dec 21, 2021 at 13:30
Adding a simple VLAN on a Juniper MX
Awarded Dec 2, 2021 at 10:10
Why does an Ethernet cable have four pairs?
Awarded Oct 1, 2021 at 14:01
Does physical distance affect download speed?
Awarded Sep 14, 2021 at 9:32
Why only port 80 for web services?
Awarded Sep 12, 2021 at 18:36
Reason for both a MAC and an IP address
Awarded Sep 6, 2021 at 16:57
How to check for a valid public IP address?
Awarded Sep 6, 2021 at 16:57
Is a TCP three-way handshake required for an HTTP POST?
Awarded Jun 16, 2021 at 14:31
What's the difference between `Latency` and `Round Trip Time`?
Awarded May 17, 2021 at 14:28
Why do we need a 3-way handshake? Why not just 2-way?
Awarded May 10, 2021 at 15:26
Why does one say IP fragmentation is bad and to be avoided when in reality data always needs to be fragmented for MTU compatibility?
Awarded Apr 2, 2021 at 15:41
Why does the IPv6 header not include a checksum?
Awarded Apr 2, 2021 at 10:15
Is wifi power consumption related to password length
Awarded Mar 2, 2021 at 14:06
Is a TCP server limited to 65535 clients?
Awarded Mar 1, 2021 at 20:06
Is multicast on the public internet possible? And if yes: How?
Awarded Feb 23, 2021 at 21:57
Do I need to set the enable secret on Cisco device?
Awarded Nov 16, 2020 at 17:16
How can a TCP window size be allowed to be larger than the maximum size of an ethernet packet?
Awarded Oct 26, 2020 at 8:40
Does UDP do anything at all?
Awarded Sep 17, 2020 at 14:55
Does UDP do anything at all?
Awarded Sep 16, 2020 at 14:46
Why do switches need ARP tables when the translation are done on the machines side?
Awarded Aug 27, 2020 at 12:43
Protocols: EIGRP vs OSPF
Awarded Aug 16, 2020 at 19:18
What is the practical use of a /31 CIDR or 255.255.255.254?
Awarded May 23, 2020 at 10:10
Will IPv6 make private IP addresses become obsolete?
Awarded Apr 30, 2020 at 21:16
How can the latency value be so low from Singapore to USA (~2ms)?
Awarded Apr 25, 2020 at 5:51
WHY and HOW do routers and vlans break broadcast domains?
Awarded Apr 24, 2020 at 9:16
Why does Ethernet use EtherType field to determine what type of packet is in a frame instead of just looking at the packet header?
Awarded Apr 18, 2020 at 7:27
Why does the IPv6 header not include a checksum?
Awarded Jan 28, 2020 at 9:30
Usage of 192.168.xxx, 172.xxx and 10.xxx in private networks
Awarded Jan 21, 2020 at 10:10
How does a switch learn a MAC address not in its lookup table?
Awarded Jan 15, 2020 at 11:25
What is the proper term for ipaddress/hostname:port
Awarded Jan 10, 2020 at 7:30
Why does DHCP use UDP and not TCP?
Awarded Jan 8, 2020 at 11:05
Router won't hold configuration
Awarded Dec 16, 2019 at 19:05
Why is 10.1.255.255 an invalid broadcast address?
Awarded Oct 11, 2019 at 7:50
Is the "default VLAN" simply the default native (untagged) VLAN on all interfaces that have no configuration?
Awarded Oct 2, 2019 at 14:05
The slash after an IP Address - CIDR Notation
Awarded Aug 15, 2019 at 7:00
Difference between control plane, data plane and management plane?
Awarded Aug 7, 2019 at 0:45
Why isn't UDP with reliability (implemented at Application layer) a substitute of TCP?
Awarded Jun 28, 2019 at 8:50
What is "oversubscription" in Networking?
Awarded Jun 26, 2019 at 13:30
What is "industrial ethernet"?
Awarded Jun 19, 2019 at 15:15
Difference between access list and prefix list?
Awarded Jun 11, 2019 at 2:55
Why can I traceroute to this IP address, but not ping?
Awarded Jun 7, 2019 at 3:00
How is the root bridge elected in STP?
Awarded May 12, 2019 at 5:35
Is it common for ISPs to connect to each other directly?
Awarded Apr 24, 2019 at 16:55
Why can't devices on different VLANs, but on the same subnet, communicate?
Awarded Apr 12, 2019 at 14:30
Why can't devices on different VLANs, but on the same subnet, communicate?
Awarded Apr 12, 2019 at 9:25
How is 8 bits sufficient for the TTL in an IP header?
Awarded Mar 23, 2019 at 6:25
About the switchport mode
Awarded Mar 14, 2019 at 12:55
What is the difference between 0.0.0.0 and a loopback IP address?
Awarded Feb 13, 2019 at 3:00
Is Ethernet port blinking really useful?
Awarded Feb 11, 2019 at 9:20
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