Question 1easymulti select
Full question →easymulti selectObjective-mapped
A company wants all routers and switches to use a common time source so log timestamps line up during incident review. Which two statements about NTP are correct?
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 helps synchronize device clocks
NTP is used to align time across systems.
B
Best answer
Consistent time improves correlation of syslog and other event data
Accurate timestamps make troubleshooting and forensics much easier.
C
Distractor review
It advertises Layer 3 reachability between routers
That is the function of routing protocols, not NTP.
D
Distractor review
It encrypts data traffic between endpoints by default
NTP is a time synchronization protocol, not a general encryption method.
Common exam trap
Common exam trap: answer the scenario, not the keyword
A common exam trap is mistaking NTP for a routing or security protocol. Some candidates incorrectly believe NTP advertises Layer 3 reachability like routing protocols (e.g., OSPF or EIGRP) or that it encrypts data traffic by default. This confusion arises because NTP is often mentioned alongside other network services, but its sole purpose is to synchronize device clocks. Selecting options related to routing or encryption when the question focuses on time synchronization leads to incorrect answers. Understanding that NTP only aligns time across devices helps avoid this trap.
Technical deep dive
How to think about this question
Network Time Protocol (NTP) is a protocol designed to synchronize the clocks of network devices such as routers and switches to a common time source. Accurate time synchronization is critical in networking environments because it ensures that all devices maintain consistent timestamps, which is essential for correlating logs, troubleshooting, and security auditing. NTP operates by exchanging timestamped messages between devices and adjusting their clocks to minimize time differences. In Cisco networking and the CCNA context, NTP is configured to point devices to a reliable time source, often a stratum 1 or stratum 2 NTP server. Devices synchronize their clocks by querying these servers periodically. This synchronization ensures that syslog messages, SNMP traps, and other event data across multiple devices have aligned timestamps, making incident review and forensic analysis more accurate and efficient. NTP does not provide routing information or encrypt data; its sole purpose is time synchronization. A common exam trap is confusing NTP with routing protocols or security protocols. For example, some might incorrectly think NTP advertises Layer 3 reachability or encrypts traffic by default. In practice, NTP only synchronizes time and does not handle routing or encryption. Understanding this distinction helps avoid selecting incorrect options related to routing or encryption when the question focuses on time synchronization and log correlation.
KKey Concepts to Remember
- NTP synchronizes the clocks of routers and switches to a common time source to ensure consistent timestamps across network devices.
- Consistent timestamps from NTP improve the correlation and analysis of syslog messages and other event data during network troubleshooting and incident review.
- NTP operates by exchanging timestamped messages between devices and adjusting their clocks to minimize time differences.
- Cisco devices use NTP to query reliable time servers, typically stratum 1 or stratum 2, to maintain accurate system time.
- NTP does not advertise Layer 3 reachability; routing protocols handle network path information instead.
- NTP does not encrypt data traffic by default; its function is limited to time synchronization.
- Accurate time synchronization via NTP is essential for security auditing and forensic analysis in Cisco networks.
- Misunderstanding NTP’s role can lead to confusing it with routing or encryption protocols, which is a common exam trap.
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?
NTP synchronizes the clocks of routers and switches to a common time source to ensure consistent timestamps across network devices.
What is the correct answer to this question?
The correct answer is: It helps synchronize device clocks — NTP is valuable because operational data is only truly useful when timestamps are consistent across devices.
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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