Networking Basics

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

• To provide wireless connectivity

• To store data

• To direct traffic between different networks

• To protect against malware

Which of the following is a valid IPv4 address?

• 192.300.1.1

• 256.100.50.25

• 192.168.1.1

• 172.16.500.1

What does the term "bandwidth" refer to in networking?

• The amount of data that can be stored on a network

• The maximum rate of data transfer across a given path

• The security level of a network

• The physical width of the network cables

What is the purpose of a subnet mask?

• To identify the network and host portions of an IP address

• To encrypt data packets for secure transmission

• To increase the speed of network connections

• To connect multiple devices wirelessly

Which protocol is used for securely accessing a remote computer?

• HTTP

• FTP

• SSH

• SMTP

What is the primary function of the Domain Name System (DNS)?

• To encrypt data

• To assign IP addresses to devices

• To translate domain names into IP addresses

• To route emails to their destination

Which layer of the OSI model is responsible for error checking and reliable delivery of data?

• Physical Layer

• Data Link Layer

• Transport Layer

• Application Layer

What is the difference between a hub and a switch?

• A hub can store data, while a switch cannot

• A switch can assign IP addresses, while a hub cannot

• A hub broadcasts data to all connected devices, while a switch sends data only to the intended recipient

• There is no difference; they are the same device

Which wireless networking standard operates at 5 GHz and offers speeds up to 3.5 Gbps?

• 802.11a

• 802.11b

• 802.11g

• 802.11ax

What is the primary purpose of a firewall in a network?

• To increase data transfer speeds

• To provide a physical barrier against intruders

• To monitor and control incoming and outgoing network traffic based on predetermined security rules

• To connect different types of networks together