Question 1

What is the maximum number of hosts that can be connected in a Class C private IP address network 192.168.1.0/24?

Accepted Answer

In a /24 network, 256 total addresses exist, but the first (network) and last (broadcast) addresses are reserved, leaving 254 usable host addresses.

Question 2

Which of the following is the correct format of an IPv4 address?

Accepted Answer

IPv4 addresses consist of four octets separated by dots, each octet ranging from 0 to 255; 192.168.1.1 is the valid format.

Question 3

Which device is used to connect multiple devices on the same local network and forward data frames based on MAC addresses?

Accepted Answer

A switch operates at Layer 2 (Data Link) and uses MAC addresses to forward frames to the correct physical ports within a LAN.

Question 4

What does DNS stand for and what is its primary purpose?

Accepted Answer

DNS (Domain Name Service) translates human-readable domain names like www.google.com into their corresponding IP addresses so computers can locate each other on the internet.

Question 5

In the OSI model, at which layer does a router operate to forward data packets between networks?

Accepted Answer

Routers operate at Layer 3 (Network Layer) and use IP addresses to make routing decisions and forward packets across different networks.

Question 6

What is the primary function of a gateway in a computer network?

Accepted Answer

A gateway acts as an entry/exit point that connects different networks and enables communication between them by translating protocols and data formats.

Question 7

Which of the following is the correct range of IP addresses for Class C private networks?

Accepted Answer

Class C private IP address range is 192.168.0.0 to 192.168.255.255, commonly used in small office and home networks.

Question 8

What does DNS stand for, and what is its primary role in networking?

Accepted Answer

DNS (Domain Name System) converts human-readable domain names (like google.com) into their corresponding IP addresses.

Question 9

Which OSI layer is responsible for routing data packets between networks?

Accepted Answer

The Network Layer (Layer 3) handles logical addressing and routing of packets between different networks.

Question 10

Which of the following is NOT a characteristic of a peer-to-peer (P2P) network?

Accepted Answer

P2P networks have no central server; all computers are equal peers, unlike client-server networks.

Question 11

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

Accepted Answer

Class B networks use the default subnet mask 255.255.0.0, which allows for 65,534 usable host addresses.

Question 12

What is the primary function of a Gateway in a computer network?

Accepted Answer

A gateway acts as an entry/exit point that connects different networks and translates protocols between them.

Question 13

In a LAN setup, which device is used to connect multiple computers within the same network segment?

Accepted Answer

A switch connects multiple devices within the same local area network and forwards frames based on MAC addresses.

Question 14

In a local area network (LAN), what is the maximum cable length for standard Cat5e Ethernet cables before signal degradation occurs?

Accepted Answer

Cat5e Ethernet cables have a maximum recommended segment length of 100 meters (approximately 328 feet) to maintain signal integrity and prevent attenuation.

Question 15

Which of the following OSI model layers is responsible for routing data packets between different networks using IP addresses?

Accepted Answer

The Network Layer (Layer 3) handles IP-based routing and logical addressing to forward packets across interconnected networks.

CAPF AC Networking Fundamentals

Networking Fundamentals — Practice Questions