Question 1mediummultiple choice
Full question →mediummultiple choiceObjective-mapped
Why does DNS make networks easier for people to use?
Answer choices
Why each option matters
Good practice is not just finding the correct option. The wrong answers often show the exact trap the exam wants you to fall into.
A
Best answer
It lets people use memorable names instead of raw IP addresses.
This is correct because name-based access is the main usability benefit of DNS.
B
Distractor review
It assigns IP addresses automatically.
This is wrong because DHCP performs automatic addressing.
C
Distractor review
It replaces the need for default gateways.
This is wrong because DNS does not remove routing requirements.
D
Distractor review
It elects the root bridge for STP.
This is wrong because DNS has nothing to do with spanning-tree election.
Common exam trap
Common exam trap: answer the scenario, not the keyword
A frequent exam trap is mistaking DNS for DHCP or routing functions. Some candidates incorrectly believe DNS assigns IP addresses automatically, which is actually the role of DHCP. Others think DNS replaces default gateways or participates in spanning-tree protocol (STP) operations, which it does not. This confusion arises because DNS, DHCP, routing, and STP are all fundamental network services but serve distinct purposes. Misunderstanding these roles can lead to selecting incorrect answers that sound plausible but do not match DNS’s actual function of name resolution.
Technical deep dive
How to think about this question
The Domain Name System (DNS) is a hierarchical and decentralized naming system that translates human-friendly domain names into IP addresses, which are used by networking equipment to route traffic. DNS acts as a directory service, allowing users to access resources using memorable names instead of numeric IP addresses. This abstraction simplifies network interaction by hiding the complexity of IP addressing from end users and administrators. In Cisco networking and CCNA contexts, DNS is essential for IP services because it enables devices and users to resolve hostnames to IP addresses dynamically. When a user enters a domain name, the DNS client queries a DNS server to obtain the corresponding IP address, allowing seamless communication across the network. This process reduces configuration errors and improves usability, especially in large networks where IP addresses frequently change or are difficult to memorize. A common exam trap involves confusing DNS with DHCP or routing protocols. DNS does not assign IP addresses or handle routing decisions; instead, it strictly resolves names to IP addresses. Practically, DNS improves user experience by enabling name-based access, but network devices still rely on IP addresses and routing protocols to forward packets. Understanding this distinction is critical for correctly answering CCNA questions about IP services.
KKey Concepts to Remember
- DNS translates human-readable domain names into IP addresses to simplify network access for users and devices.
- DNS operates as a distributed database that resolves names dynamically, enabling scalable and manageable IP services.
- DNS does not assign IP addresses; DHCP is responsible for automatic IP address allocation in networks.
- DNS does not replace default gateways or routing functions, which are essential for directing traffic between networks.
- DNS is unrelated to Spanning Tree Protocol (STP) and does not participate in root bridge election or loop prevention.
- Cisco devices use DNS to resolve hostnames during configuration and operation, improving network usability and management.
- Understanding the distinct roles of DNS, DHCP, routing, and STP is critical to correctly answering CCNA IP services questions.
- DNS enhances network usability by allowing users to remember and use names instead of complex numeric IP addresses.
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
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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 human-readable domain names into IP addresses to simplify network access for users and devices.
What is the correct answer to this question?
The correct answer is: It lets people use memorable names instead of raw IP addresses. — DNS makes networks easier to use because it lets people work with names instead of memorizing numeric IP addresses. In practical terms, users can remember a server name much more easily than a string of numbers. DNS creates that naming layer while the network still uses IP underneath. This usability benefit is one of the main reasons DNS is so important in everyday network operations.
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
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