面试题与答案

DNS (Domain Name System) is used to translate human-readable domain names into IP addresses.

Example:

When you type 'www.example.com' in a browser, DNS resolves it to the corresponding IP address.

DHCP (Dynamic Host Configuration Protocol) assigns IP addresses dynamically to devices on a network, eliminating the need for manual configuration.

Example:

When a computer connects to a network, DHCP provides it with an IP address, subnet mask, and other configuration details.

Verify the user's identity, reset the password using established procedures, and ensure the user changes the password upon login.

Example:

Ask security questions or use multi-factor authentication to confirm the user's identity before resetting the password.

A firewall is a network security device that monitors and controls incoming and outgoing network traffic based on predetermined security rules.

Example:

A firewall prevents unauthorized access to a network and protects against malicious activities.

Task Manager provides information about running applications and processes, CPU and memory usage, and allows users to end unresponsive tasks.

Example:

If a program is not responding, you can use Task Manager to end the task and regain control of your system.

Open File Explorer, click 'This PC,' and select 'Map network drive.' Choose a drive letter and enter the network path to the shared folder.

Example:

Mapping a network drive allows quick access to shared resources without navigating through the entire network structure.

An IP address uniquely identifies a device on a network and facilitates communication between devices.

Example:

When you type a website's domain name, DNS resolves it to an IP address, allowing your device to connect to the server hosting the website.

A MAC (Media Access Control) address is a unique identifier assigned to a network interface controller (NIC) for communication on a network.

Example:

MAC addresses are used at the data link layer to ensure data is sent to the correct device on a local network.

Go to 'Settings,' select 'Update & Security,' and click 'Check for updates.' Install available updates to ensure system security and stability.

Example:

Regularly updating Windows is essential to patch security vulnerabilities and access new features.