Question 1

What is the primary purpose of the Network Layer (Layer 3) in networking?

Accepted Answer

To connect individual networks into an internetwork

Answer

To establish physical connections between devices

Answer

To manage data link protocols

Answer

To handle application-level services

Question 2

Which protocol is at the heart of most modern networks?

Accepted Answer

IP (Internet Protocol)

Answer

TCP

Answer

HTTP

Answer

UDP

Question 3

IPv4 addresses are represented as:

Accepted Answer

Four groups of decimal numbers separated by periods

Answer

Eight groups of four hexadecimal digits

Answer

Six groups of hexadecimal numbers

Answer

Four octets of binary numbers

Question 4

What is a key difference between IPv4 and IPv6?

Accepted Answer

IPv6 has a larger address space

Answer

IPv6 uses fewer bits for addressing

Answer

IPv6 requires less security

Answer

IPv6 is slower than IPv4

Question 5

Which tool is commonly used to test IP connectivity to another host?

Accepted Answer

ping

Answer

ipconfig

Answer

netstat

Answer

route

Question 6

What is the primary function of a router in a network?

Accepted Answer

To forward packets between different networks

Answer

To convert digital signals to analog

Answer

To encrypt network traffic

Answer

To assign IP addresses

Question 7

What is a VLAN?

Accepted Answer

A logical subdivision of a network

Answer

A wireless network protocol

Answer

A type of network cable

Answer

A physical network segment

Question 8

In dynamic routing, how do routers learn about network paths?

Accepted Answer

By exchanging routing information with other routers

Answer

Through end-user input

Answer

By scanning physical connections

Answer

Through manual configuration only

Question 9

What is the purpose of subnetting?

Accepted Answer

To divide a large network into smaller, manageable segments

Answer

To connect to the internet

Answer

To encrypt network traffic

Answer

To increase network security

Question 10

Which of these is a characteristic of tiered switching architecture?

Accepted Answer

Hierarchical network design with multiple layers

Answer

Single layer of switches only

Answer

Random connection of switches

Answer

Wireless-only infrastructure

Question 11

What information does a router use to make forwarding decisions?

Accepted Answer

Routing tables

Answer

Application data

Answer

MAC addresses only

Answer

Physical port numbers

Question 12

Which tool would you use to view IP configuration on a Windows computer?

Accepted Answer

ipconfig

Answer

ifconfig

Answer

routeprint

Answer

netstat

Question 13

What is a key benefit of implementing VLANs?

Accepted Answer

Improved network segmentation and security

Answer

Increased network speed

Answer

Better wireless coverage

Answer

Reduced power consumption

Question 14

When troubleshooting IP networks, what should be checked first?

Accepted Answer

Physical connectivity

Answer

Application settings

Answer

Router configurations

Answer

DNS settings

Question 15

What is a primary advantage of dynamic routing over static routing?

Accepted Answer

Automatic adaptation to network changes

Answer

Simpler configuration

Answer

Better security

Answer

Faster packet forwarding

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