Free ITA Infrastructure & Network Design Questions and Answers

Question 1

What is a key component of network infrastructure?

Accepted Answer

Router

Answer

A router is a fundamental component of network infrastructure that directs data packets between different computer networks. It acts as a traffic controller, determining the best path for information to travel across networks, including the internet. Without routers, devices on separate networks would be unable to communicate with each other.

Question 2

Which topology uses a central hub to connect all nodes?

Accepted Answer

Star

Answer

In a star topology, all network devices (nodes) are individually connected to a central hub, switch, or server. This central device acts as a conduit for all data traffic between the nodes. If one node fails, it does not affect the rest of the network, but if the central device fails, the entire network goes down.

Question 3

What does a firewall do in network design?

Accepted Answer

Filters traffic based on security rules

Answer

A firewall is a network security system that monitors and controls incoming and outgoing network traffic based on predetermined security rules. Its primary function is to establish a barrier between a trusted internal network and untrusted external networks, like the internet. By filtering traffic, it protects against unauthorized access and malicious activities.

Question 4

Which protocol assigns IP addresses dynamically?

Accepted Answer

DHCP

Answer

DHCP (Dynamic Host Configuration Protocol) is a network management protocol used on Internet Protocol (IP) networks for dynamically assigning IP addresses and other communication parameters to devices connected to the network. This automation simplifies network administration by eliminating the need for manual IP configuration for each device, ensuring efficient network setup and management.

Question 5

What is the purpose of a VLAN?

Accepted Answer

Segment network traffic logically

Answer

A VLAN (Virtual Local Area Network) allows network administrators to logically segment a single physical network into multiple broadcast domains. This means devices on different VLANs cannot communicate directly without a router, even if they are connected to the same physical switch. VLANs improve network performance, security, and manageability by isolating traffic and reducing broadcast domains.

ITA - Information Technology Architecture Certification Practice Test

ITA - Information Technology Architecture Certification Practice Test

Free ITA Infrastructure & Network Design Questions and Answers