Exam-style practice for CCNA, CCNP ENCOR, ENARSI, SCOR and WLCOR, and CompTIA Network+. Answer the question below and see what each option gets right or wrong.
3 days, 100 questions, no card needed.
Sample question, IP Connectivity
A packet for 10.1.4.9 arrives at R1. Which route does R1 use, and why?
R1# show ip route | begin 10.0.0.0
10.0.0.0/8 is variably subnetted, 2 subnets, 2 masks
O 10.1.0.0/16 [110/20] via 192.168.12.2, 00:14:02, Ethernet0/1
S 10.1.4.0/24 [1/0] via 192.168.13.3
Why each option is right or wrong
Pick an answer. The reasoning behind all four options shows up here, including the one that picks the right route for the wrong reason.
The order of entries in the output means nothing for forwarding. The router compares prefixes and picks the most specific one that matches.
Administrative distance only breaks ties between routes to the exact same prefix. 10.1.0.0/16 and 10.1.4.0/24 are different prefixes, so their distances are never compared.
The router picks the most specific match first. 10.1.4.9 falls inside both prefixes, and /24 is more specific than /16, so the static route wins. Remove it and the packet follows the OSPF /16.
Load balancing needs equal-cost routes to the same prefix. Two different prefixes are never load-balanced against each other.
Each plan covers one certification. You can add another one later.
| Certification | Exam | Questions | Good for | |
|---|---|---|---|---|
| CCNA | Cisco 200-301 | 1,190 questions | Your first Cisco certification | Practice CCNA |
| CCNP ENCOR | Cisco 350-401 | 741 questions | The core exam for CCNP Enterprise | Practice ENCOR |
| CCNP ENARSI | Cisco 300-410 | 260 questions | Advanced routing, a concentration exam for CCNP Enterprise | Practice ENARSI |
| CCNP SCOR | Cisco 350-701 | 280 questions | The core exam for CCNP Security | Practice SCOR |
| CCNP WLCOR | Cisco 350-101 | 280 questions | The core exam for the new CCNP Wireless | Practice WLCOR |
| Network+ | CompTIA N10-009 | 494 questions | Vendor-neutral networking basics | Practice Network+ |
Every question works like the one above. Around the questions, two tools show you where you stand.
I failed my first CCNA attempt with 58%. I had read the material and watched the videos, but I had never practiced under time pressure, and I could not explain why the wrong answers were wrong.
I passed on my second attempt. CertAce is the tool I wished I had the first time: explanations for every option, timed practice, and an honest view of my weak domains.
Adrian Neagu Metzak, Cisco CCNA, founder of CertAce. Verify my CCNA · Read the full story
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