ICC Network Fundamentals 2

Question 1

Which OSI layer is responsible for logical addressing and routing packets between networks?

Accepted Answer

Network

Answer

The Network layer (Layer 3) handles logical addressing via IP and determines the best path for packet delivery across interconnected networks.

Question 2

What is the default subnet mask for a Class B IP address?

Accepted Answer

255.255.0.0

Answer

Class B addresses use a default subnet mask of 255.255.0.0, providing 16 bits for the host portion of the address.

Question 3

Which protocol dynamically assigns IP addresses to devices on a network?

Accepted Answer

DHCP

Answer

DHCP (Dynamic Host Configuration Protocol) automatically assigns IP addresses, subnet masks, default gateways, and DNS server addresses to network clients.

Question 4

In a star topology, if the central switch fails, what is the impact on the network?

Accepted Answer

All connected devices lose connectivity

Answer

In a star topology, all devices connect to a central switch, so failure of that switch results in complete loss of connectivity for all attached devices.

Question 5

What does the acronym VLAN stand for in network terminology?

Accepted Answer

Virtual Local Area Network

Answer

VLAN stands for Virtual Local Area Network, a logical segmentation of a physical network that groups devices regardless of their physical location.

(ICC) International Code Council Practice Test

(ICC) International Code Council Practice Test

ICC Network Fundamentals 2