Practice EXAM V

Mark works in an office with a large open floor plan. The company uses the 802.11ac standard for its wireless network. Some employees, especially those far from the router, complain about the slow internet speed. What is most likely the cause?

• The company needs to upgrade from 802.11ac standard

• The office is using a captive portal for internet access

• the use of WPA2 Security setting is slowing down the network

• The network signal is attenuating due to large distance and possible interference

Answer explanation

Explanation

In an open floor office, the distance and any physical barriers can contribute to signal attenuation, especially as 802.11ac operates solely at 5Ghz which doesn't propagate as well over larger distances compared to 2.4Ghz. The 802.11ac standard supports high data transfer rates and is one of the latest standards. Upgrading isn't likely to solve signal attenuation issues. The use of a captive portal can temporarily disrupt internet access, but it shouldn't consistently slow down a network's speed. While using security settings like WPA2 involves some overhead, it does not typically result in noticeably slower network speeds, unless the network is operating at its capacity.

Which of these storage types uses laser technology to read and write data?

• Optical Storage

• NAS

• Solid State Drive

• Flash Drive

Answer explanation

Optical storage devices such as CDs, DVDs, and Blu-ray discs, use laser technology to read and write data, making it the correct response for this question. Solid state drives write data electrically and don't involve the use of laser technology to read or write data. Flash drives are a type of solid-state storage, and they write data through electronic methods as opposed to using laser technology. Though a NAS could potentially consist of optical drives, the NAS itself does not use laser tech to read/write. Rather, it provides file access services to computer systems.

Which device is primarily designed for personal portability and efficient performance of daily tasks, integrating the display, system components, and input/output devices within a single, portable case or chassis?

• Workstations

• IoT devices

• Servers

• Laptop

Answer explanation

Explanation

Laptops are designed for personal portability and efficiency in performing various tasks including office work, study, research, entertainment, among others. Workstations, while they can also perform everyday tasks, are more aimed unyielding high-performance tasks such as 3D rendering or large-scale computations. IoT devices like thermostats, IP cameras, smart home systems, among others, are made for specific functions as part of a larger connected system, not for personal portability or performance of daily tasks. Servers have a very different function, as their main task is to provide services to other systems, such as hosting web applications or storing data.

Which of the following is NOT a true statement about the advantages of using fiber optic cables for network connectivity?

• Higher data Transfer Speed

• Greater resistance to electromagnetic interference

• Longer transmission distance

• More affordable installations coast

Answer explanation

More affordable installation costs is not an advantage of fiber optic cables. In general, the installation costs of fiber optic cables are higher compared to traditional copper or coaxial cables. Higher data transfer speeds are a primary advantage of fiber optic cables. They can transmit data at much higher speeds compared to traditional copper or coaxial cables. Fiber optic cables are immune to electromagnetic interference, which can affect the quality of data transmission in copper or coaxial cables. Fiber optic cables can transmit data over longer distances without significant signal degradation. They have a higher range compared to copper or coaxial cables.

Jessica is setting up a new Wi-Fi printer in her home office. After connecting it to her home network, what will she most likely need to do to configure it and make it accessible to her devices?

• Plug-and Play

• Driver Installation

• web-based configuration

• USB Connection

Answer explanation

They will likely need to perform web-based configuration to finalize the setup of her Wi-Fi printer. This can include entering her Wi-Fi details, setting an IP address, and configuring other settings through a web interface. While they might need to install drivers on her devices to use the printer, the printer itself is typically configured through a web interface. Plug-and-play refers to devices that are recognized and installed automatically once connected to a computer. While this might be part of the process, they will still likely need to perform web-based configuration for her Wi-Fi printer. While some printers can be connected via USB, a Wi-Fi printer is typically set up and configured using a network connection and a web interface.

What feature BEST defines the difference between optical storage and flash drives?

• Storage Medium

• Data Transfer Speed

• Physical Size

• Connectivity

Answer explanation

Optical storage uses light to read and write data, while flash drives use integrated circuit technology. This means the two technologies fundamentally use different kinds of media for data storage. Though physical size can vary, it is not a distinguishing factor between optical storage and flash drives. Both can come in various sizes. While data transfer speeds differ between optical storage and flash drives, it is not the defining difference between these two storage methods. Both optical storage and flash drives can connect to a computer, typically via USB ports. This doesn't distinguish them, as the method of connectivity is common to many storage devices.

Which of the following computing devices is increasingly being equipped with advanced technologies like GPS navigation, Bluetooth connectivity, and even autonomous driving capabilities?

• Modern cars

• Gaming consoles

• tablets

• Medical Devices

Answer explanation

Modern cars are now often equipped with various advanced technologies such as GPS navigation, Bluetooth connectivity, autonomous driving, and more, turning them into complex computing devices on wheels. Medical devices, such as heart monitors or insulin pumps, are typically designed for specific medical purposes and do not have GPS navigation or autonomous driving capabilities. While tablets do come equipped with GPS and Bluetooth connectivity, they are not capable of autonomous driving. Gaming consoles are primarily designed for entertainment, offering powerful graphics processing units (GPUs) and CPUs for video game rendering, but they do not feature GPS navigation or autonomous driving capabilities.

Which type of interface would you typically use to connect an external hard drive to a computer?

• USB

• NFC

• VGA

• RJ-11

Answer explanation

Explanation

USB, or Universal Serial Bus, is a common interface for connecting peripheral devices, such as external hard drives, to computers. NFC, or Near Field Communication, is a wireless technology for short-range communication and is not typically used to connect external hard drives. The RJ-11 connector is typically used for telephone lines, not for connecting peripheral devices to computers. VGA, or Video Graphics Array, is a graphics display system and an interface for connecting monitors, not for connecting peripheral devices like hard drives.

Sarah is a graphic designer who works with large design files and requires fast data access and storage for her work. She wants to upgrade her computer system with a component that offers faster data transfer rates and improved performance for handling large files. Which type of storage device is MOST suitable for Sarah's needs?

• GPU (Graphics Process Unit)

• SSD (Solid State Drive

• Hard Drive

• Cooling System

Answer explanation

An SSD is a storage device that uses flash memory technology to store data. It offers significantly faster data transfer rates, quicker access times, and improved overall performance compared to traditional hard drives. SSDs are commonly recommended for users who require fast and efficient storage for large files, making them the most suitable choice for Sarah's needs. A cooling system is responsible for dissipating heat and maintaining the temperature within a computer system. While important for overall system health and stability, it does not address Sarah's specific requirement for faster data transfer rates and improved storage performance. A hard drive is a traditional storage device that uses magnetic disks to store data. While it offers larger storage capacities at a lower cost, it is relatively slower in terms of data transfer rates and access times, which may not meet Sarah's need for fast data access and improved performance. A GPU is a specialized component designed for graphics processing and rendering. While it plays a crucial role in graphic-intensive tasks, such as gaming and rendering complex visual effects, it does not directly address Sarah's need for improved data access and storage performance.

Which of the following processes refers to the conversion of a URL to an IP address?

• Packet transmission

• IP address assignment

• DNS Resolution

• SMTP

Answer explanation

DNS resolution, also known as DNS lookup, is the process where a domain name (URL) is translated into an IP address. This is crucial as computers communicate using IP addresses. IP address assignment deals with designating an IP address to a device within a network. This does not refer to the process of converting a URL to an IP address. Packet transmission involves the process of sending and receiving data, which may be in the form of packets. However, it doesn't involve the conversion of URLs to IP addresses. SMTP, or Simple Mail Transfer Protocol, is a part of the email delivery process. It does not get involved in the conversion of URLs to IP addresses.