200-301 Question 366
Select 2A network administrator notices that users on the network are unable to access a specific website using its domain name, but they can access it using its IP address. Additionally, new devices joining the network are not receiving IP addresses automatically. Which two network services are likely misconfigured or not functioning correctly?
- A
DNS (Domain Name System)
- B
DHCP (Dynamic Host Configuration Protocol)
- C
NTP (Network Time Protocol)
- D
SNMP (Simple Network Management Protocol)
- E
FTP (File Transfer Protocol)
Show answer and explanation
Correct answers: A, B
Explanation
The issue described includes a failure to resolve domain names (indicating a DNS problem) and an inability for new devices to obtain IP addresses automatically (indicating a DHCP problem). DNS translates domain names to IP addresses, and DHCP assigns IP addresses to devices. Therefore, misconfigurations or failures in these two services are the likely cause of the reported issues.
- A. Correct.
DNS is responsible for translating domain names (e.g., www.example.com) into their corresponding IP addresses. If DNS is not functioning properly, users will not be able to access websites using domain names.
- B. Correct.
DHCP is responsible for automatically assigning IP addresses and other network configuration parameters to devices on the network. If DHCP is not functioning, new devices will not receive IP addresses automatically.
- C. Incorrect.
NTP is used to synchronize time across network devices. While important, it is not related to domain name resolution or IP address assignment issues.
- D. Incorrect.
SNMP is used for network management and monitoring, but it is unrelated to the described issues.
- E. Incorrect.
FTP is a protocol for transferring files and is not relevant to DNS or DHCP functionalities.