100-150 Question 143
Select 3A company is expanding its on-premises network by adding a new branch office. The IT team needs to ensure that the infrastructure at the new branch can connect to the main office and support basic network services like DHCP and DNS. Which of the following components are essential to include in the new branch office infrastructure to meet these requirements?
- A
A router to establish connectivity between the branch and main office
- B
A Layer 2 switch to provide interconnectivity for local devices
- C
A firewall to filter incoming and outgoing traffic
- D
A DHCP server to dynamically assign IP addresses to devices
- E
A DNS server to resolve domain names to IP addresses
Show answer and explanation
Correct answers: A, B, D
Explanation
To establish the network infrastructure at the branch office, essential components include a router for connectivity to the main office, a Layer 2 switch for local device interconnectivity, and a DHCP server for IP address management. While firewalls and DNS servers are important for security and name resolution, they are not strictly required for basic network functionality in this scenario.
- A. Correct.
Correct: A router is essential for connecting the branch office to the main office and enabling communication between the networks.
- B. Correct.
Correct: A Layer 2 switch is required to connect devices like computers and printers within the branch office on the local network.
- C. Incorrect.
Incorrect: While a firewall is important for security, it is not strictly essential for basic connectivity and network services in this scenario.
- D. Correct.
Correct: A DHCP server is needed to dynamically assign IP addresses to devices at the branch office, ensuring they can communicate on the network.
- E. Incorrect.
Incorrect: While a DNS server is useful, it is likely that the branch office will rely on the main office's DNS server or an external DNS service, making it non-essential in this context.