Electrical Engineering Student ⚡ | Aspiring SOC Analyst 🫱 | Networking & Security | Building My Blue Team Career
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Joined June 2025
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Eddy retweeted
35 NETWORKING Concepts You MUST Know So You Don't Feel DUMB in Tech.
① OSI Model → 7 layers of networking
② TCP/IP Model → internet communication
③ IPv4 vs IPv6 → network addressing
④ Subnetting → divide IP networks
⑤ CIDR → IP address ranges
⑥ MAC Address → Layer 2 identity
⑦ DNS → domain to IP resolution
⑧ DHCP → automatic IP configuration
⑨ ARP → IPv4 to MAC resolution
⑩ Default Gateway → exit your network
⑪ Router → connects different networks
⑫ Switch → forwards LAN traffic
⑬ TCP → reliable, ordered delivery
⑭ UDP → connectionless, best-effort delivery
⑮ TCP Handshake → SYN, SYN-ACK, ACK
⑯ Ports → identify application endpoints
⑰ HTTP vs HTTPS → web vs secure web
⑱ TLS → encrypts connections
⑲ NAT → translates IP addresses
⑳ VLAN → logical network separation
㉑ Routing Tables → determine next hops
㉒ OSPF → routing within a network
㉓ BGP → routing between networks
㉔ Firewall → filters network traffic
㉕ VPN → encrypted network tunnels
㉖ ICMP → diagnostics and error messages
㉗ Ping → test host reachability
㉘ Traceroute → discover network paths
㉙ MTU → maximum packet size per link
㉚ Load Balancer → distributes traffic
㉛ CDN → delivers content closer to users
㉜ Latency → communication delay
㉝ Bandwidth → maximum link capacity
㉞ Throughput → actual data transfer rate
㉟ Packet Loss → packets lost in transit
Don't just memorize these definitions.
Understand how they work TOGETHER.
That's how networking starts making sense.
Eddy retweeted
Network Engineer Question
An OSPF neighbour gets stuck in the EXSTART state. Both routers can ping each other.
What is a likely cause?
A. MTU mismatch
B. Incorrect DNS
C. DHCP pool exhaustion
D. Duplicate MAC address
🚀 Project completed: Operation_Network_Fortress
Built a mini enterprise network simulation using Packet Tracer, implementing VLANs, OSPF, EtherChannel, ACLs, DHCP, DNS, SSH, NAT...
📂 GitHub: github.com/uwaifoefosa09/Ope…
@wildfl0w6r @IgbojionuL31968 @Wittynetworks
#CCNA #Cisco
Eddy retweeted
As a Network Engineer, how well do you understand these words:
Compression
Bandwidth
Capacity
Congestion
Jitter
Throughput
QoS
Latency
Fresnel zone
Tell us in the comments section what either of the above is/are and your understanding of it.
I want to read from you.
Y'all should try out @Wittynetworks CCNA troubleshooting labs ....sat on lab for 2hrs with no clue, took a break decided to come back to troubleshooting tomorrow . It'll really help test your networking knowledge . The author deliberately blocked out simulation mode 😭
#ccna
Today was all about strengthening QOS & WAN concepts..These ENSA topics seem really deep and confusing due to lack to of exposure
Again i haven't been frequent with my posts cause of a little issue of laziness 😅. Been on this topic for about 8 days
@wildfl0w6r @IgbojionuL31968
Eddy retweeted
I'm officially AWS Certified Cloud Practitioner! 🎉
Some months ago, I joined the AWS re/Start program with lil knowledge of cloud. Look at how far I've come
Also thankful to @CyberRealm_HQ for providing access to the AWS Academy courses & labs. Really helped
More to build! 🚀
Eddy retweeted
Network Engineer Question
An interface has 1 Gbps speed; users experience intermittent packet loss. The interface counters show increasing CRC errors
What is the most likely cause?
A. DNS failure
B. Faulty cable or physical-layer issue
C. Incorrect default gateway
D. BGP route
Eddy retweeted
I designed a multi-site enterprise network connecting a Head Office, Branch Office and simulated ISP.
I implemented VLANs, inter-VLAN routing, DHCP, OSPF, eBGP, route redistribution and NAT/PAT.
I documented the configurations and testing. Take a look👇
github.com/IgbojionuLinda/En…
Eddy retweeted
Network Engineer Question
A customer reports slow internet. Signal strength is good, wireless CCQ is 45% and ping loss is 20%.
What is the most likely issue?
A. DNS misconfiguration
B. Poor wireless link quality or interference
C. Incorrect default gateway
D. DHCP expiration
Part 3: NAT theory → full lab 🧪
Static NAT → admin hosts, 1:1
Dynamic NAT → pool of 100 for Engineering
PAT → wireless users sharing 2 public IPs
Pinged 7.7.7.2 and 9.9.9.2 from the wireless laptop, and the PDU trace shows the translation
#ccna #networking
Module 6 with @CiscoNetAcad
Static NAT → 1:1 mapping
Dynamic NAT → pool of public IPs
PAT → many hosts, one public IP, ports then track different communications
Went off the grid to get better at the CLI.
@wildfl0w6r @IgbojionuL31968
#Networking #NetworkEngineering #CCNA
Module 6 with @CiscoNetAcad
Static NAT → 1:1 mapping
Dynamic NAT → pool of public IPs
PAT → many hosts, one public IP, ports then track different communications
Went off the grid to get better at the CLI.
@wildfl0w6r @IgbojionuL31968
#Networking #NetworkEngineering #CCNA
Typed ip route 100.0.0.0 0.255.255.255 ..and the router said “Inconsistent address and mask.”
Wildcard mask in a static route. Classic. 🤦
Having trouble knowing when to use wildbits or subnets bits
Today: ACL's with Dynamic NAT
Topology 👇
@wildfl0w6r @IgbojionuL31968
#ccna
Eddy retweeted
Today I graduated from the Women Techsters Fellowship, Class of 2026 (Cybersecurity)🎓🥳💃🏽
It's been months of learning, building & growing
Grateful to @Tech4DevHQ
One chapter completed. More growth ahead🚀
#WTFellowship26 #Tech4Dev #BeyondtheFellowship #Classof2026Graduation
Eddy retweeted
Network Engineer Question For Today.
A router's interface is up, but OSPF neighbours keep resetting. CPU usage is normal.
What should you investigate first?
A. Unstable link or interface errors
B. DNS cache
C. DHCP lease time
D. NAT overload
Eddy retweeted
Network Engineer Question For Today.
A router receives a packet with a valid destination IP but drops it even though it has a matching route.
Which setting could cause this?
A. An outbound ACL
B. A DNS cache
C. An STP priority
D. A DHCP lease
Eddy retweeted
Today's class continuation at @TechSphereAcad was a very interesting one!
Weekend Cybersecurity live class with Abby was insightful! We covered Risk = Threat x Vulnerability x Impact, the management lifecycle (Identify to Monitor), treatment options - Mitigate, Transfer, Avoid,
Wrapped up ACLs with @CiscoNetAcad
33 questions deep and my eyes are tired, but standard, extended, and named ACLs are now locked in 🤧
@wildfl0w6r @IgbojionuL31968
#CCNA #Cisco #Networking #NetworkEngineering #ACLs
ACLs with @CiscoNetAcad 🔥
One of those CCNA topics that truly requires critical thinking. It's not just about knowing the commands, but understanding traffic flow, wildcard masks, protocols, and which int to apply the ACL.
@wildfl0w6r @IgbojionuL31968
#ccna #networking #ACLs
