Member Avatar for nelson mark

please tell me the answer of this question i am not good in advanced maths

  • 7 Contributors
  • 11 Replies
  • 4K Views
  • 1 Week Discussion Span
  • Latest Post Latest Post by CimmerianX

Dani AI

Generated

JorgeM is right that day-to-day network administration rarely needs advanced math, while rubberman correctly notes that engineering design benefits from a deeper foundation. In practice, most junior admin/engineer work relies on a small, repeatable toolkit: binary/hex basics, powers of two, CIDR prefixes, wildcard masks, simple percentage/throughput math, and a few routing metrics. For example, plan subnets and ACLs by converting between prefix and mask, and remember that a Cisco wildcard mask is the inverse of the subnet mask (0 means “match,” 1 means “don’t care”). This shows up constantly in OSPF and ACL statements. Cisco community guidance explains this inversion clearly.

Where math starts to matter more is with routing metrics and wireless. OSPF cost is computed as reference_bandwidth / interface_bandwidth; on classic IOS the default reference bandwidth is 100 Mbps, so FastEthernet and 1 Gbps can both show cost 1 unless you raise it. Some NX-OS platforms default to 40 Gbps. Whichever platform you use, keep the reference consistent across the OSPF domain to avoid odd path choices. Cisco’s OSPF FAQ and cover the formula and defaults.

If you touch Wi‑Fi or RF, you will use decibels: 3 dB is roughly a doubling of power, and dBm converts to mW on a log scale. That is enough to read surveys and sanity‑check link budgets. See Cisco’s RF reference for quick conversions and rules of thumb. Wireless RF Reference Guide.

For landing a role, nelson mark’s plan is solid: finish the BS, then earn CCNA. CCNA validates exactly the math you will use (IPv4/IPv6 addressing and subnetting, VLANs, OSPF basics, automation fundamentals). Hands-on labs plus CCNA remain a strong entry path. Cisco CCNA overview, CCNA training objectives.

On ladders and cables: as CimmerianX said, understand Layer 1 and be willing to run the occasional drop, but many shops outsource cabling so you can focus on keeping the network up.

Recommended Answers

All 11 Replies

Member Avatar for JorgeM

An administrator and engineer are two different things. However, I beleive that your are simple referring to the type of position that manages a corporate network that includes network resources such as domain accounts, network gear, and networking services. For this type of position, there really isn't much math involved.

Member Avatar for hira08

i dont thnk so in networking u need to konw maths. basically maths is compulsory for programmers.

Member Avatar for rubberman

What JorgeM said is basically correct. Some simple math is required to decode IP addresses (I used to teach this in elementary networking classes to AT&T technicians, most with a high-school education) for a network admin position, but this is simple for anyone with high-school math. To be a network engineer (and all that the title "engineer" entails), then math at least through differential calculus is needed, plus a degree from a accredited educational institution. There are exceptions (I am one), but the basic skills cannot be shorted. I am a non-degreed engineer, but I have many university credits in graduate-level technical curricula, as well as the requisite maths and scientific knowledge.

Member Avatar for aju_jagtap

my lan network problem to somtime pc send receved problem so please give me answer sir

Member Avatar for getnit

When it comes to large networks, you might have subnets and large number of vlans, now even though we have calculators for this, to understand how it works one needs to know mathematics, not on a post graduate level though.

Member Avatar for nelson mark

thanks for anwsering my question. i wanna ask i am taking bs networking 4 year undergraduate degree . with this degree
can i accquire anetwork engineer postion
check the link

Member Avatar for nelson mark

Electives of this degree
Network Programming
Network Security
Mobile Computing
Internetworking with UNIX, TCP/IP
Introduction to Network Storage
Essentials of Storage Networking
Broadband Networks

Member Avatar for getnit

The electives seems to be pretty good, if it is a four years programme then it should definitely help for a network engineer position, also depends on how good is the school and the value for the certification they offer in the market.

Member Avatar for nelson mark

i will do ccna after the degree will this be good for landing a job in network engineering

Member Avatar for nelson mark

does network administrator work with ladder and connect wire to from pole to pole. ? or it is to manage computers that provides internet to users and troubleshoot the problem on that network servers .

Member Avatar for CimmerianX

As a 20 year Network admin, you should know all about running cable. That being said, I always outsource layer 1 stuff to a 3rd party. They will usually do it faster, and it will cost less than your valuable time.

Network admin's main job is to keep the network up and usable for the end users. And if that means having to run the odd cable once in a while, you do it.

Be a part of the DaniWeb community

We're a friendly, industry-focused community of developers, IT pros, digital marketers, and technology enthusiasts meeting, networking, learning, and sharing knowledge.