Cyber EOP - DHCP DNS Gateway Subnet Mask By Mr. B

What does DNS stand for?

• Domain Name System

• Dynamic Network System

• Distributed Name Service

• Data Network Service

Answer explanation

DNS stands for Domain Name System, which is the system that translates human-friendly domain names into IP addresses, allowing browsers to load Internet resources.

What is the primary function of a DHCP server?

• To assign static IP addresses

• To monitor network traffic

• To automatically assign IP addresses

• To convert domain names to IP addresses

Answer explanation

The primary function of a DHCP server is to automatically assign IP addresses to devices on a network, simplifying the process of network configuration and management.

What type of IP address is used only within a company?

• Dynamic IP address

• Public IP address

• Private IP address

• Static IP address

Answer explanation

A Private IP address is used exclusively within a company's internal network, allowing devices to communicate without being exposed to the public internet. This is why it is the correct choice for the question.

What does a subnet mask help to identify?

• The network and host portion of an IP address

• The MAC address of a device

• The type of DHCP server

• The speed of the network connection

Answer explanation

A subnet mask helps to identify the network and host portion of an IP address by determining which part of the address refers to the network and which part refers to the individual device (host) within that network.

Which of the following is a characteristic of public IP addresses?

• They are used only within a private network

• They can be accessed from anywhere on the Internet

• They are temporary addresses

• They are assigned by a DHCP server

Answer explanation

Public IP addresses are unique and can be accessed from anywhere on the Internet, allowing devices to communicate globally. The other options describe characteristics of private IP addresses or specific configurations.

What is the role of a default gateway?

• To assign IP addresses to devices

• To specify the IP address for external traffic

• To convert domain names to IP addresses

• To monitor network performance

Answer explanation

The default gateway serves as the access point for devices to communicate with external networks. It specifies the IP address for external traffic, allowing devices to send data outside their local network.

What is the purpose of a DNS server?

• To provide internet access

• To assign IP addresses dynamically

• To convert IP addresses into domain names

• To manage network security

Answer explanation

The primary purpose of a DNS server is to convert IP addresses into domain names, making it easier for users to access websites without needing to remember numerical addresses.

What happens to IP addresses assigned by a DHCP server?

• They are leased for a certain amount of time

• They are always static

• They are permanent and unchangeable

• They are only used for public networks

Answer explanation

IP addresses assigned by a DHCP server are leased for a certain amount of time, meaning they can change after the lease expires. This is in contrast to static IP addresses, which remain constant.

Which protocol is responsible for converting domain names to IP addresses?

• DHCP

• FTP

• HTTP

• DNS

Answer explanation

The Domain Name System (DNS) is the protocol that translates human-readable domain names into IP addresses, allowing browsers to load Internet resources. Other options like DHCP, FTP, and HTTP serve different purposes.

What is a key feature of a subnet mask?

• It assigns IP addresses to devices

• It determines the speed of the network

• It identifies the MAC address of a device

• It helps calculate if two IP addresses are in the same subnet

Answer explanation

A subnet mask is crucial for determining whether two IP addresses belong to the same subnet. It does this by masking the IP addresses to reveal their network portion, allowing for effective routing and communication.