Network Engineering
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Zac67
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2,799 Answers

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72 votes

Is 30 Mbit/s fibre for WAN faster than 30 Mbit/s copper?

61 votes
Accepted

Is Ethernet port blinking really useful?

33 votes
Accepted

Why are IP addresses given to each interface and not device? What would the implications of that be?

30 votes
Accepted

What is the use of NTP server when devices have accurate time?

29 votes

How is 8 bits sufficient for the TTL in an IP header?

29 votes
Accepted

Why does an Ethernet cable have four pairs?

29 votes
Accepted

How can a TCP window size be allowed to be larger than the maximum size of an ethernet packet?

26 votes
Accepted

Is wifi power consumption related to password length

25 votes
Accepted

What is this device used by a networking technology company?

25 votes
Accepted

Why do we need ports with IPv6?

23 votes

Why are rings not a favorite option in IT networks?

22 votes
Accepted

What is the least possible separation of two NICs with the same MAC address?

21 votes
Accepted

Why can a packet sniffer in an Ethernet LAN obtain all packets sent over the LAN?

20 votes
Accepted

Is the MTU of Ethernet still 1500 Bytes?

19 votes

Is "IPv10" a joke or a serious RFC draft?

18 votes
Accepted

Can a switch that does NOT support VLAN capability be considered a managed switch if it has other features?

18 votes
Accepted

what is difference between MSS and Window Size?

18 votes
Accepted

How does a router find the next hop when the receiver is in a distant IP network?

17 votes

How come SFP modules are so incompatible?

17 votes

How Does A Layer 2 Switch Differentiate Between Different Networks?

17 votes
Accepted

What do the positive and negative (+/-) transmit and receive pins mean on Ethernet cables?

16 votes
Accepted

Difference between router and gateway

16 votes
Accepted

Why can PPPoE connect to a gateway which is not in the same subnet

16 votes
Accepted

Is `0.0.0.0/1` a valid IP address? If so, what does it indicate?

15 votes
Accepted

What does bandwidth (digital) really mean?

15 votes

Serialization and serialization times in 40G/10G and 100G/25G Ethernet

14 votes

Is CIDR IP format currently in use?

14 votes

Do network adapters read incoming bits in a single stream?

14 votes
Accepted

Difference between Giant Frame and Jumbo Frame

14 votes

Why can I send 127.0.0.1 to 127.0.0.0 on my network?

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