What "refer to the exhibit" actually means
The exam puts a diagram, table, or command output on screen and asks a question about it. You are not expected to memorise anything — everything you need is in the image. The skill being tested is whether you can read the exhibit quickly, extract the relevant detail, and apply the right concept to explain it.
Most candidates lose time here because they read the question first, then scan the exhibit while already committed to one interpretation. Read the exhibit before the question. Form a quick mental model of what it shows. Then read the question to find out what it is actually asking.
Routing table exhibits
The most common exhibit type in the CCNA. A routing table looks like this:
R1# show ip route
Codes: C - connected, S - static, O - OSPF ...
10.0.0.0/8 is variably subnetted, 4 subnets, 2 masks
C 10.1.1.0/24 is directly connected, GigabitEthernet0/0
O 10.1.2.0/24 [110/2] via 10.1.1.2, 00:05:12, GigabitEthernet0/0
S 10.1.3.0/24 [1/0] via 10.1.1.3
O 10.1.4.0/24 [110/3] via 10.1.1.2, 00:05:12, GigabitEthernet0/0
The four columns that matter: route source code (C, S, O), destination network and prefix, administrative distance and metric in brackets [AD/metric], and next-hop or exit interface.
When a question asks "which route will R1 use to reach 10.1.4.1?", look for the longest prefix match first. If multiple routes match the same prefix, the route with the lowest administrative distance wins. If AD is tied, lowest metric wins.
This is where learners usually get caught: they look for the route that obviously mentions the destination, ignoring the possibility that a less-specific route (like a default route) might be the only match.
Topology diagram exhibits
These show routers and switches connected by links, sometimes with IP addresses labelled. The question will describe a traffic problem — "Host A cannot reach Host B" — and ask you to find the cause.
Work through it in order:
- Can Host A reach its default gateway? Check subnet and mask.
- Does the gateway router have a route to Host B's network? Check the routing table if shown.
- Is there a return path? Routing is bidirectional — a missing return route causes one-way traffic failure.
- Are VLANs in play? Check that both hosts are in the same VLAN or that inter-VLAN routing is configured.
Do not guess. Every diagram exhibit contains the answer. The question is whether you are reading it systematically or scanning for something familiar.
Switch and VLAN output exhibits
show vlan brief and show interfaces trunk appear frequently. For VLAN exhibits:
- Look at which VLANs are active and which ports are assigned to them.
- A port that appears in the exhibit but is not listed under any VLAN is in VLAN 1 by default.
- A port listed as "unassigned" is not in any VLAN and traffic will not forward.
For trunk exhibits, the key fields are Mode, Encapsulation, Status, and VLANs allowed on trunk. If VLAN 20 is not in the allowed VLAN list on a trunk, traffic from VLAN 20 will not cross that link — regardless of what is configured at both ends.
OSPF neighbor exhibits
show ip ospf neighbor shows the state of each OSPF adjacency. The states to know: Full means fully adjacent and exchanging routes. 2-Way means the routers see each other but did not become fully adjacent (normal for non-DR/BDR routers on a multi-access network). Stuck in Init or Exstart usually means mismatched authentication, mismatched MTU, or a one-way Hello problem.
When an exhibit shows OSPF state and the question asks why two routers are not exchanging routes, check: are they Full? If they are in 2-Way and the question says routes are missing, look at whether the router you are examining is a DR/BDR or DROTHER.
The trap candidates rely on
Exhibit questions include one or two answer choices that would be correct if you misread one specific field. The distractor is always plausible — it describes a real networking concept applied to the wrong detail.
The most common misread: confusing administrative distance with metric. In [110/2], 110 is the AD (OSPF), 2 is the metric (cost). Questions that ask "what is the metric for this route?" expect 2, not 110. If you confuse the two, you will pick a wrong answer that still looks correct.
Practise reading exhibits before exam day
Courseiva's CCNA practice questions include exhibits in the same format as the real exam. Work through the CCNA exam questions page to build speed on routing table and topology reads. The OSPF topic guide covers neighbor states in detail if you need to review the adjacency logic.
Frequently asked questions
How long should I spend on an exhibit question? Target 60–90 seconds. If you are not making progress, flag it, move on, and return at the end. Never sit on one exhibit question while easy questions expire unanswered.
Do exhibit questions appear at the start of the exam? Performance-based questions (which often use exhibits) appear at the beginning. Many candidates skip them first and return after answering all multiple choice. This is a valid strategy.
What if the exhibit text is too small to read? You can usually click to zoom in Pearson VUE's interface. Do this before spending time guessing what a label says.
Are exhibit questions worth more marks? CompTIA does not publish per-question weighting. Treat each question equally and do not trade time on exhibit questions against easy recall questions.
Annotating Topology Diagrams Before Reading the Question
The most effective habit for topology exhibit questions: annotate before you read the question. Take 10-15 seconds to mark on your scratch paper:
- Interface labels on each device (Gi0/0, Se0/0/0)
- IP addresses on each segment
- Which devices share a subnet (directly connected neighbors)
- If OSPF is involved: which router is likely the DR based on priority or highest IP
Doing this annotation means you already understand the topology when the question asks which router R2 would choose as its next hop. You answer from a mental model, not from re-scanning the exhibit under time pressure.
One thing that trips candidates: the diagram shows interface IP addresses but the question asks about the OSPF router ID. Router IDs are often loopback addresses that do not appear on simplified topology diagrams. If you do not see loopback information, the highest active interface IP becomes the router ID — and this may not be obvious from the drawing.
Reading Routing Table Exhibits — The 5-Second Filter
When a routing table is the exhibit, do not read every line. Use this filter:
- Find the destination the question asks about
- If multiple routes match, identify the most specific prefix — longest match wins, regardless of administrative distance
- Check the [AD/metric] only if the question is comparing two routes with the same prefix length
- Identify the next-hop IP and outgoing interface for the winning route
Everything else in the table is distraction or context for a different question. Experienced candidates answer routing table questions in under 30 seconds by skipping irrelevant routes entirely.
The header line "Gateway of last resort is X.X.X.X to network 0.0.0.0" tells you a default route exists. If the question asks about traffic to a destination that has no specific match, the gateway of last resort is the answer. "Gateway of last resort is not set" means unknown traffic is dropped.
Command Output Exhibits — Common Scenarios and Their Tells
The CCNA exam recycles a small set of command output patterns. Learn to recognize each on sight:
show ip ospf neighbor showing 2WAY/DROTHER — This is normal. Two DROther routers on a broadcast segment stop at 2-Way. The exhibit is testing whether you recognize this is not a problem. If the question asks "what does this indicate about the OSPF network?" the answer is normal operation.
show ip ospf neighbor showing EXSTART — The DBD exchange is stuck. Almost always an MTU mismatch. One side has a different MTU (for example, due to a GRE tunnel with lower effective MTU). Fix: ip ospf mtu-ignore on both interfaces.
show interfaces showing input errors and CRC errors — Layer 1 or Layer 2 problem. CRC errors on a point-to-point link point to a duplex mismatch. One side auto-negotiated to half duplex while the other is fixed at full.
show spanning-tree showing a port in BLK state — Normal for a non-designated port in a loop-free topology. Abnormal if you see a PortFast-enabled access port in BLK — that means an unexpected BPDU was received, which would trigger BPDU Guard if configured.
show ip route with a missing expected destination — The routing protocol is not advertising that network. For OSPF, check the network command and wildcard mask. For static routes, verify the configuration exists in global config.
The Wrong-Answer Trap in Exhibit Questions
Every exhibit contains information that justifies a wrong answer. This is intentional design. If the routing table shows both a static route (/16) and an OSPF route (/24) to destinations in the same range, one of the answer options will cite the static route's lower AD (1 vs 110) as the reason it wins. This is wrong — the OSPF /24 is more specific and wins regardless of AD.
Read the question before studying the exhibit, not after. Knowing what you are looking for lets you filter the exhibit instead of processing everything in it. Two minutes spent understanding the question saves time on the exhibit itself.
Time Management for Exhibit Questions
Exhibit questions take genuinely longer than text-only questions — the cognitive load of processing a diagram or command output is higher. Budget 90-120 seconds per exhibit question. If you are stuck at 90 seconds and not confident, make your best choice, flag the question, and move on. Coming back with fresh eyes resolves many exhibit questions that seemed impossible on first pass.
The exam gives you enough total time if you manage it well. Candidates who spend three or four minutes on one exhibit question while dozens of questions remain are the ones who run out of time at the end.
Practice Question Sets
The only way to build genuine speed on CCNA questions is reps under realistic conditions. Pick a session size that fits your schedule: