Question 1mediummatching
Full question →Match each service to the issue it most directly addresses.
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mediummatchingObjective-mapped
Match each service to the issue it most directly addresses.
Common exam trap
Common exam trap: answer the scenario, not the keyword
A common exam trap is confusing the symptoms of DNS and DHCP issues. Candidates might incorrectly match DHCP to name resolution failures, but DHCP only assigns IP addresses and related parameters, not name resolution. Similarly, NTP problems can be mistaken for syslog issues because both involve time, but NTP specifically synchronizes device clocks, while syslog collects event logs. Misidentifying these services leads to incorrect troubleshooting and answer selection, especially under time pressure.
Technical deep dive
How to think about this question
DNS (Domain Name System) is a critical IP service that translates human-readable hostnames into IP addresses. In Cisco networks, DNS allows devices to resolve names for routing, management, and application access. When DNS fails, devices can still communicate via IP addresses but cannot resolve domain names, leading to connectivity issues that appear as name resolution failures. Understanding DNS behavior helps isolate problems related to hostname resolution without confusing them with IP connectivity issues. DHCP (Dynamic Host Configuration Protocol) automates IP address assignment and related network parameters like subnet mask, default gateway, and DNS servers. In Cisco environments, DHCP servers dynamically allocate addresses to hosts, simplifying network management. When DHCP fails, hosts do not receive IP addresses automatically, causing them to be unable to communicate on the network. Troubleshooting DHCP involves verifying server availability, scope configuration, and client lease status. NTP (Network Time Protocol) synchronizes clocks across network devices, ensuring consistent timestamps for logs and events. Cisco devices rely on accurate time for security protocols, logging, and troubleshooting. If NTP is misconfigured or unreachable, device clocks drift, causing inconsistent log timestamps and potential authentication failures. Syslog collects and centralizes event messages from devices, aiding network monitoring and troubleshooting. While syslog depends on accurate time, it is distinct from NTP and focuses on event collection rather than time synchronization.
KKey Concepts to Remember
- DNS translates hostnames into IP addresses, enabling name resolution essential for network communication and management.
- DHCP dynamically assigns IP addresses and network parameters to hosts, preventing manual configuration errors and enabling network scalability.
- NTP synchronizes device clocks across the network, ensuring consistent timestamps for logs, security, and troubleshooting.
- Syslog centralizes event message collection from multiple devices, facilitating network monitoring and incident response.
- Name resolution failures indicate DNS issues, while lack of IP addressing points to DHCP problems in Cisco networks.
- Inconsistent device clocks or log timestamps typically reveal NTP synchronization problems rather than syslog issues.
- Syslog depends on accurate time from NTP but serves a different function by collecting and storing event logs.
- Correctly matching symptoms to IP services improves troubleshooting accuracy and exam answer selection in Cisco networking contexts.
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.
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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 translates hostnames into IP addresses, enabling name resolution essential for network communication and management.
What exam trap should I watch out for?
Common exam trap: answer the scenario, not the keyword: A common exam trap is confusing the symptoms of DNS and DHCP issues. Candidates might incorrectly match DHCP to name resolution failures, but DHCP only assigns IP addresses and related parameters, not name resolution. Similarly, NTP problems can be mistaken for syslog issues because both involve time, but NTP specifically synchronizes device clocks, while syslog collects event logs. Misidentifying these services leads to incorrect troubleshooting and answer selection, especially under time pressure.
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.
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