Question 1mediummatching
Full question →Match each troubleshooting observation to the most likely primary area to investigate first.
Answer choices are not available in this preview. Open the full question page for the complete review.
mediummatchingObjective-mapped
Match each troubleshooting observation to the most likely primary area to investigate first.
Common exam trap
Common exam trap: answer the scenario, not the keyword
A common exam trap is confusing symptoms of IP connectivity issues with IP services failures. For example, assuming name resolution problems are due to routing or subnetting errors rather than DNS misconfiguration leads to wasted troubleshooting effort. Similarly, missing automatic IP address assignment might be incorrectly attributed to interface or VLAN problems instead of DHCP server or relay issues. The trap is to jump to lower-layer network problems without first isolating the IP service layer, which the question specifically targets. Recognizing the distinct role of each IP service like DNS, DHCP, NTP, and Syslog is essential to avoid this pitfall.
Technical deep dive
How to think about this question
IP services such as DNS, DHCP, NTP, and Syslog provide essential network functionality beyond basic IP routing and switching. DNS translates human-readable domain names into IP addresses, enabling hostname resolution. DHCP automates IP address assignment to hosts, reducing manual configuration errors. NTP synchronizes device clocks to ensure consistent timestamps across logs and events. Syslog collects and centralizes event messages from network devices for monitoring and troubleshooting. Each service operates at the application layer but depends on underlying IP connectivity. Troubleshooting these IP services requires understanding their distinct failure symptoms and the corresponding configuration or network areas to investigate first. For example, if name resolution fails despite IP connectivity, the primary focus should be DNS server reachability and configuration. If hosts do not receive IP addresses automatically, DHCP server availability, scopes, and relay agents must be checked. Inconsistent timestamps indicate NTP synchronization issues, often caused by unreachable or misconfigured NTP servers. Missing event visibility points to Syslog server configuration or network path problems. A common exam trap is to confuse IP service failures with lower-layer network issues such as routing, VLANs, or ACLs. While these can impact service reachability, the first-pass troubleshooting should isolate the IP service itself. For instance, DHCP failures are often due to server or relay misconfiguration rather than subnetting errors. Similarly, DNS failures usually stem from server or forwarding issues, not routing protocol problems. Understanding the distinct symptoms and their primary investigation areas aligns with Cisco’s operational troubleshooting methodology and improves exam success.
KKey Concepts to Remember
- DNS failure with working IP reachability indicates the need to investigate DNS server configuration and name resolution settings first.
- Lack of automatic IP address assignment suggests DHCP server availability and scope configuration should be the primary troubleshooting focus.
- Inconsistent timestamps on devices point to NTP server synchronization issues and require checking NTP configuration and connectivity.
- Missing event visibility in network monitoring typically means Syslog server configuration or network path to the Syslog server must be examined.
- IP services troubleshooting requires isolating application-layer service issues before investigating underlying routing or switching problems.
- Each IP service failure symptom maps to a specific service area, enabling targeted and efficient troubleshooting in Cisco networks.
- Understanding the role and behavior of DNS, DHCP, NTP, and Syslog is critical for effective IP services troubleshooting in the CCNA context.
- Misattributing IP service failures to routing or subnetting errors is a common mistake that wastes troubleshooting time and effort.
TExam Day Tips
- Watch for words such as best, first, most likely and least administrative effort.
- Review why wrong options are wrong, not only why the correct option is correct.
Related practice questions
Related 200-301 practice-question pages
Use these pages to review the topic behind this question. This is how one missed question becomes focused revision.
CCNA subnetting practice questions
Practise IPv4 subnetting, CIDR, masks, host ranges and subnet selection.
CCNA OSPF practice questions
Practise OSPF neighbours, router IDs, metrics, areas and routing-table interpretation.
CCNA VLAN practice questions
Practise VLANs, access ports, trunks, allowed VLANs and switching scenarios.
CCNA STP practice questions
Practise spanning tree, root bridge election, port roles and STP troubleshooting.
CCNA EtherChannel practice questions
Practise LACP, PAgP, port-channel behaviour and bundle requirements.
CCNA ACL practice questions
Practise standard and extended ACLs, permit/deny logic and traffic filtering.
CCNA NAT practice questions
Practise static NAT, dynamic NAT, PAT and inside/outside address translation.
CCNA DHCP practice questions
Practise DHCP scopes, relay, leases and troubleshooting.
CCNA show ip route practice questions
Practise routing-table output, longest-prefix match, AD and route selection.
CCNA show interfaces trunk practice questions
Practise trunk verification and VLAN forwarding across switches.
CCNA wireless security practice questions
Practise WLAN security, authentication and wireless architecture concepts.
CCNA IPv6 practice questions
Practise IPv6 addressing, routes, neighbour discovery and common IPv6 exam traps.
More questions from this exam
Keep practising from the same exam bank, or move into a focused topic page if this question exposed a weak area.
Question 1
A router learns the same prefix from both OSPF and EIGRP. Which route is installed by default?
Question 2
A router shows this output: R1#show ip ospf neighbor Neighbor ID Pri State Dead Time Address Interface 10.1.1.2 1 FULL/DR 00:00:34 192.168.12.2 GigabitEthernet0/0 10.1.1.3 1 2WAY/DROTHER 00:00:39 192.168.12.3 GigabitEthernet0/0 Which statement is correct?
Question 3
What is the OSPF metric called?
Question 4
A non-root switch has two uplinks toward the root bridge. One path has a lower total STP cost than the other. What role will the lower-cost uplink have?
Question 5
A router interface applies this ACL inbound: 10 deny tcp any any eq 80 20 permit ip any any A user reports that web browsing to a server by IP address fails, but ping works. Which statement best explains the behavior?
Question 6
A router learns route 198.51.100.0/24 from OSPF with AD 110 and also has a static route to the same prefix configured with AD 150. Which route is installed?
FAQ
Questions learners often ask
What does this 200-301 question test?
DNS failure with working IP reachability indicates the need to investigate DNS server configuration and name resolution settings first.
What exam trap should I watch out for?
Common exam trap: answer the scenario, not the keyword: A common exam trap is confusing symptoms of IP connectivity issues with IP services failures. For example, assuming name resolution problems are due to routing or subnetting errors rather than DNS misconfiguration leads to wasted troubleshooting effort. Similarly, missing automatic IP address assignment might be incorrectly attributed to interface or VLAN problems instead of DHCP server or relay issues. The trap is to jump to lower-layer network problems without first isolating the IP service layer, which the question specifically targets. Recognizing the distinct role of each IP service like DNS, DHCP, NTP, and Syslog is essential to avoid this pitfall.
What should I do if I get this 200-301 question wrong?
Then try more questions from the same exam bank and focus on understanding why the wrong options are tempting.
Discussion
Loading comments…
Sign in to join the discussion.