Arman Hasen, Author at Networkwalks Academy

BGP Interview Questions & Answers

BGP is which type of Routing Protocol? BGP is a Path Vector Routing Protocol. It falls under the category of EGP (Exterior Gateway Protocol) Which algorithm is used by BGP for best path selection? BGP uses Composite Metric for best path selection and install the best routes into the routing table What are BGP Path attributes? BGP uses multiple attributes or metrics for best path selection which are Weight (cisco), LOCAL_PREF, aggregate, as_path, origin, MED, neighbor type (ebgp > ibgp), igp metric (next_hop), route age, router ID (originator ID), Neighbor IP How many neighbor states are there Read More …

EIGRP Interview Questions & Answers

What is EIGRP? EIGRP is a Routing Protocol used for IP Networks. It is classless, Distance Vector & Hybrid type of Routing protocol. It was released in 1993. Is EIGRP a Cisco proprietary protocol or open source protocol? EIGRP is partially open source routing protocol. It was a Cisco proprietary protocol till 2013. Then Cisco submitted a portion of EIGRP to the IETF for consideration as a potential standard. The entire protocol has not yet been accepted as a standard and remains proprietary to Cisco. Therefore, some portion of EIGRP is open standard & some portion of it is Read More …

OSPF Interview Questions & Answers

What is OSPF? Open Shortest Path First is an open standard link state routing protocol which works by using Dijkastra’s SPF algorithm to find the shortest paths. What is OSPF Router ID? OSPF Router ID is an identifier which is used to identify the Router. It is a 32-bit number. How does a Router select its OSPF Router ID? Most of Routers (including Cisco) derive the Router ID in the following precedence order: Manually configured Router ID Highest Loopback Address Highest Physical IP Address on the Router What are OSPF Timer (Intervals)? Below are OSPF Intervals: OSPF Read More …

New Cisco Certification Scheme has been Announced! (changes from Feb2020)

Cisco has announced new CCIE Certification & relevant Exams which will be effective from 24th February 2020. New rules will apply from Feb-2020 for CCIE. Below are the major changes with explanation. Now there are only 6 Tracks now for CCIE, 5 Tracks for CCNP & 1 Track for CCNA instead of 11+ previously. Below is the detailed Cisco Certification Pathway: Download PDF of new Cisco Certification Pathway & Scheme: Follow the below articles for detailed list of changes in each program at CCNA, CCNP & CCIE Levels: New CCNA 200-301 New Changes in Cisco CCNP! New CCIE has Read More …

New CCNA 200-301

Cisco has announced new CCNA 200-301 Exam which has been effective from 24th February 2020. Below is the highlight & new syllabus in PDF. Single CCNA Exam for all Tracks (no more CCNA Security or CCNA Data Center etc) If you complete any current CCNA/CCDA certification before February 24, you’ll receive the new CCNA certification and a training badge in the corresponding technology area. If a candidate has already completed CCENT certification and would like to go for CCNA Exam, you still have time until 23rd February to complete your CCNA certification in the current program. Candidates will need Read More …

New CCIE has been Announced from Feb 2020!

Cisco has announced new CCIE Certification & relevant Exams which will be effective from 24th February 2020. New rules will apply from Feb-2020 for CCIE. Below are the major changes with explanation. What is the new CCIE Lab Exam Format? The updated CCIE Lab Exam covers the whole Network lifecycle now. It starts from Planning, Design, Deployment, Operation & continuous Optimization. Previously, it used to be only Diagnosis, Configuration & Troubleshooting only. There was a separate Track for Design & Planning. Below fig. shows the differences between old & new Lab exam format. Module 1: Design Format: Scenario Read More …

New Changes in Cisco CCNP!

Cisco has announced new CCNP Certification & relevant Exams which will be effective from 24th February 2020. New rules will apply from Feb-2020 for CCNP. Below are the major changes with explanation. What happens if you were in middle of your CCNP & have passed half already? If you were already preparing for CCNP RS in 2019 & have passed 1 or 2 exams already then your hard work is not wasted & you will receive credit towards new Certification scheme. Follow the below table for CCNP Routing & Switching (use the links at the end for other CCNP Read More …

DHCP Study Notes Cheatsheet – Part 3

DHCP CheatSheet for Cisco CCNA (Dynamic Host Configuration Protocol)

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Author: Arman Hasen