Unit 2 Mobile and Operating Systems

What is a key characteristic of thin clients?

• A. High processing power

• B. No local storage

• C. Fully functional offline

• D. Supports complex software installations

Answer explanation

A key characteristic of thin clients is that they have no local storage. They rely on a server for processing and data storage, making them lightweight and efficient for specific tasks.

Which device is considered a "thick client"?

• Tablet

• Smartphone

• Desktop computer

• Thin client

Answer explanation

A "thick client" is a device that performs most of the processing on its own, which is characteristic of a desktop computer. In contrast, tablets and smartphones are more reliant on server resources, while thin clients depend heavily on servers.

What is a major benefit of using Virtual Desktop Infrastructure (VDI)?

• No need for internet connectivity

• Centralized update management

• High power consumption

• Single-user license

Answer explanation

A major benefit of using Virtual Desktop Infrastructure (VDI) is centralized update management, allowing IT teams to efficiently manage and deploy updates across all virtual desktops from a single location.

What is a drawback of using a thin client?

• High initial cost

• No internet required

• Requires network connectivity

• Complex maintenance

Answer explanation

A drawback of using a thin client is that it requires network connectivity. If the network goes down, users cannot access applications or data, making it less reliable compared to traditional clients that can operate independently.

Which mobile device is typically used for consumption and media activities?

• A. Desktop

• B. Laptop

• C. Tablet

• D. Server

Answer explanation

A tablet is specifically designed for consumption and media activities, offering a portable and user-friendly interface. Unlike desktops and laptops, tablets are optimized for reading, watching videos, and browsing.

Which of the following is a drawback of smartphones?

• Expandable storage

• Long battery life

• Non-upgradable RAM

• Low portability

Answer explanation

Non-upgradable RAM is a drawback of smartphones because it limits the ability to enhance performance over time, unlike PCs where RAM can be upgraded. This can lead to slower performance as apps and operating systems evolve.

Which operating system is known for its high vulnerability due to market share?

• Linux

• Windows

• MacOS

• Android

Answer explanation

Windows is known for its high vulnerability due to its large market share, making it a prime target for malware and attacks. Other operating systems like Linux and MacOS have smaller user bases, resulting in fewer attacks.

What is a benefit of using a hypervisor for virtualization?

• Requires specific hardware

• Cost savings on physical machines

• Limited scalability

• No maintenance required

Answer explanation

Using a hypervisor allows multiple virtual machines to run on a single physical machine, leading to significant cost savings on hardware, maintenance, and energy, making it a more efficient solution compared to using separate physical machines.

What is the role of DHCP in a network?

• Assigns IP addresses automatically

• Manages storage allocation

• Provides DNS resolution

• Encrypts network data

Answer explanation

DHCP (Dynamic Host Configuration Protocol) automatically assigns IP addresses to devices on a network, simplifying network management and ensuring that each device has a unique address for communication.

Which type of server is dedicated to storing and managing files for users?

• Web server

• File server

• DNS server

• DHCP server

Answer explanation

A file server is specifically designed to store and manage files for users, allowing them to access and share data over a network. In contrast, web servers, DNS servers, and DHCP servers serve different functions.