The CompTIA 220-1001 exam is one of two exams requires to obtain the CompTIA A+ (1000 series). This exam will focus on mobile devices like laptops, cell phones and the components used in them.
1) True or false:
Laptops use an Alternating Current (AC) jack to charge their battery.
Laptops have a Direct Current (DC) jack. A laptop charger has an electrical unit that translates a home or building's Alternating Current (AC) power to DC power.
This question is filed under objective 1, Mobile Devices
A DC connector (or DC plug, for one common type of connector) is an electrical connector for supplying direct current (DC) power Compared to domestic AC power plugs and sockets, DC connectors have many more standard types that are not interchangeable The dimensions and arrangement of DC connectors can be chosen to prevent accidental interconnection of incompatible sources and loads Types vary from small coaxial connectors used to power portable electronic devices from AC adapters, to connectors used for automotive accessories and for battery packs in portable equipment … Read More
2) What option is the most common display technology used in laptop computers?
Liquid-crystal display (LCD) screens are the most common type found in laptop computers.
This question is filed under objective 1, Mobile Devices
A liquid-crystal display (LCD) is a flat-panel display or other electronically modulated optical device that uses the light-modulating properties of liquid crystals combined with polarizers Liquid crystals do not emit light directly, instead using a backlight or reflector to produce images in color or monochrome LCDs are available to display arbitrary images (as in a general-purpose computer display) or fixed images with low information content, which can be displayed or hidden, such as preset words, digits, and seven-segment displays, as in a digital clock They use the same basic technology, except that arbitrary images are made from a matrix of small pixels, while other displays have larger elements… Read More
3) What wireless technology is used by contactless payment services?
Near-field Communication (NFC) is a wireless technology used by contactless payment services like Google Pay and Apple Pay.
This question is filed under objective 1, Mobile Devices
Near-Field Communication (NFC) is a set of communication protocols for communication between two electronic devices over a distance of 4 cm (11⁄2 in) or less NFC offers a low-speed connection with simple setup that can be used to bootstrap more-capable wireless connectionsNFC devices can act as electronic identity documents and keycards They are used in contactless payment systems and allow mobile payment replacing or supplementing systems such as credit cards and electronic ticket smart cards This is sometimes called NFC/CTLS or CTLS NFC, with contactless abbreviated CTLS NFC can be used for sharing small files such as contacts, and bootstrapping fast connections to share larger media such as photos, videos, and other files… Read More
4) Which keyboard feature allows laptop manufactures to reduce keyboard size and provide small form-factor laptops?
Many laptops use the Fn Key as a modifier key similar to Ctrl, Shift and Alt keys. Fn key usage varies, but common examples are to re-use number keys for additional functionality like changing a device's volume.
This question is filed under objective 1, Mobile Devices
The Fn key, short form for function, is a modifier key on many keyboards, especially on laptops, used in a compact layout to combine keys which are usually kept separate It is typically found on laptops due to their keyboard size restrictions It is also found on many full-sized "multimedia" keyboards as the F-Lock key It is mainly for the purpose of changing display or audio settings quickly, such as brightness, contrast, or volume, and is held down in conjunction with the appropriate key to change the settings … Read More
5) True or False: A benefit of using a cloud backup service is that data from a mobile device can be easily recovered if a mobile device is lost or stolen.
The statement is true and describes one the most common use cases of mobile cloud service providers. Using a cloud service like iCloud or Google Drive ensures a lost, stolen or broken mobile device can have it's data recovered and transferred onto a replace device. Depending on the service and device configuration this could include Contacts, Apps, Emails, Pictures and nearly any other file type.
This question is filed under objective 1, Mobile Devices
Cloud storage is a model of computer data storage in which the digital data is stored in logical pools, said to be on "the cloud" The physical storage spans multiple servers (sometimes in multiple locations), and the physical environment is typically owned and managed by a hosting company These cloud storage providers are responsible for keeping the data available and accessible, and the physical environment protected and running People and organizations buy or lease storage capacity from the providers to store user, organization, or application data Cloud storage services may be accessed through a colocated cloud computing service, a web service application programming interface (API) or by applications that utilize the API, such as cloud… Read More
6) Your employer requires all mobile devices have a VPN client installed. The VPN client should be enabled whenever public or otherwise untrusted wireless networks are used. What is the benefit of using a VPN?
A Virtual Private Network (VPN) provides an encrypted tunnel to connect to networks. It can be used to securely connect from a home office to a corporate network or as an additional layer of security when using public wireless networks (e.g. the free WiFi at a coffee shop).
This question is filed under objective 1, Mobile Devices
The term virtual private network (abbreviated VPN) describes any technology that can encapsulate and transmit network data, typically Internet Protocol data, over another network Such a system enables users to access network resources that may otherwise be inaccessible from the public internet VPNs are frequently used in the information technology sector to provide access to resources for users that are not physically connected to an organization's network, such as telecommuting workers VPNs are so named because they may be used to provide virtual (as opposed to physical) access to a private network Colloquially, the term VPN may be used to refer, albeit improperly, to a proxy service that uses VPN technology (such as OpenVPN) as opposed… Read More
7) Which of the following is a network protocol used to download emails onto a mobile phone?
The Post Office Protocol 3 (POP3) is a protocol used by clients to download emails from a server. Another possible answer is the Internet Message Access Protocol (IMAP) which is not listed as an option. The Simple Mail Transfer Protocol (SMTP) is not correct as it is only used by clients to send email and by servers to transfer emails from one server to another. SMTP is not used to download email from a server to a client device like a mobile phone.
This question is filed under objective 1, Mobile Devices
In computing, the Post Office Protocol (POP) is an application-layer Internet standard protocol used by e-mail clients to retrieve e-mail from a mail server POP version 3 (POP3) is the version in common use … Read More
8) Which of the following is a type of internal data storage device found in laptops?
Magnetic Disk drives or Hard Disk Drives (HDDs) are common storage devices found in laptops and desktop computers. Flash drives generally refer to external storage devices. Volatile refers to Volatile Memory and loses all data when a laptop is powered off.
This question is filed under objective 1, Mobile Devices
A hard disk drive (HDD), hard disk, hard drive, or fixed disk is an electro-mechanical data storage device that stores and retrieves digital data using magnetic storage and one or more rigid rapidly rotating platters coated with magnetic material The platters are paired with magnetic heads, usually arranged on a moving actuator arm, which read and write data to the platter surfaces Data is accessed in a random-access manner, meaning that individual blocks of data can be stored and retrieved in any order HDDs are a type of non-volatile storage, retaining stored data even when powered off Modern HDDs are typically in the form of a small rectangular box… Read More
9) Your employer offers cellphones to employees for work related uses. Both Android and iOS devices are offered. An employee states they have an iOS device and have lost their charging cable. What type of cable is most likely needed?
Apple iPhone's (which use the iOS operating system) use the Lightning cable type as a charger. Lightning is a proprietary connector and is only used by Apple products.
This question is filed under objective 1, Mobile Devices
Lightning is a proprietary computer bus and power connector created and designed by Apple Inc Introduced on September 12, 2012 (2012-09-12), to replace its predecessor, the 30-pin dock connector, the Lightning connector is used to connect Apple mobile devices like iPhones, iPads, and iPods to host computers, external monitors, cameras, USB battery chargers, and other peripherals Using 8 pins instead of 30, Lightning is more dense than its predecessor, which was integrated with devices like the iPhone 4 and the iPad 2 The male Lightning connector is symmetrical (same pins on either side), so it can be inserted into a female Lightning port in either orientation… Read More
10) An employee with a Windows 10 laptop and a docking station has opened a ticket with the IT Help Desk where you work. The ticket asks if the two monitors at their desk can be swapped because they are not in the correct order when the user docks their laptop. How should you proceed?
The Windows 10 operating system allows users to Re-arrange their displays to match their physical layout. You can find this by right-clicking on the desktop, selecting Display Settings and finding the re-arrange your displays section. Here each display can be moved to match the physical layout.
This question is filed under objective 1, Mobile Devices
11) Your manager has asked you to purchase new hard drives for the Media Department. They often open large files like high resolution images and video files. You need to choose a drive type that balances performance with costs. Which type would be best?
Hybrid drives balance the performance of Solid State Drives (SSDs) with the lower cost of Hard Disk Drives (HDDs). This makes it a good option for balancing performance and costs.
This question is filed under objective 1, Mobile Devices
In computing, a hybrid drive (solid state hybrid drive – SSHD) is a logical or physical storage device that combines a faster storage medium such as solid-state drive (SSD) with a higher-capacity hard disk drive (HDD) The intent is adding some of the speed of SSDs to the cost-effective storage capacity of traditional HDDs The purpose of the SSD in a hybrid drive is to act as a cache for the data stored on the HDD, improving the overall performance by keeping copies of the most frequently used data on the faster SSD There are two main configurations for implementing hybrid drives: dual-drive hybrid systems and solid-state hybrid drives… Read More
12) Which of the following correctly explains the following statement:
Small mobile devices like smart phones and tablets do not use spinning disks.
The statement is true. Smart phones and tablets use non-volatile flash storage due to their small form factor and to avoid malfunctions due to the moving parts found in spinning Hard Disk Drives (HDD).
This question is filed under objective 1, Mobile Devices
A hard disk drive (HDD), hard disk, hard drive, or fixed disk is an electro-mechanical data storage device that stores and retrieves digital data using magnetic storage and one or more rigid rapidly rotating platters coated with magnetic material The platters are paired with magnetic heads, usually arranged on a moving actuator arm, which read and write data to the platter surfaces Data is accessed in a random-access manner, meaning that individual blocks of data can be stored and retrieved in any order HDDs are a type of non-volatile storage, retaining stored data even when powered off Modern HDDs are typically in the form of a small rectangular box… Read More
13) What wireless protocol is most likely to be used to create a WPAN?
Wireless Personal Area Network (WPAN) are most commonly created using Bluetooth Bluetooth is used by mobile devices to communicate directly without the use of an intermediate device like a Wireless Access Point (WAP) or wireless router.
This question is filed under objective 1, Mobile Devices
A personal area network (PAN) is a computer network for interconnecting electronic devices centered on an individual person's workspace A PAN provides data transmission among devices such as computers, smartphones, tablets and personal digital assistants PANs can be used for communication among the personal devices themselves, or for connecting to a higher level network and the Internet where one master device takes up the role as gateway A PAN may be wireless or carried over wired interfaces such as USB A wireless personal area network (WPAN) is a PAN carried over a low-powered, short-distance wireless network technology such as IrDA, Wireless USB, Bluetooth or ZigBee… Read More
14) What type of display technology is most commonly found on eReaders?
Electronic Ink (also known as Electronic Paper) are used in eReaders as they provide a screen most similar to physical ink and paper.
This question is filed under objective 1, Mobile Devices
E Ink ("electronic ink") is a brand of electronic paper (e-paper) display technology commercialized by the E Ink Corporation, which was co-founded in 1997 by MIT undergraduates JD Albert and Barrett Comiskey, MIT Media Lab professor Joseph Jacobson, Jerome Rubin and Russ WilcoxIt is currently available commercially in grayscale and color and is commonly used in mobile devices such as e-readers, and, to a lesser extent, digital signage, smartwatches, mobile phones, electronic shelf labels and architecture panels … Read More
15) What technology provides a physical access control when logging into a laptop?
A smart card is a physical authorization device. It is similar to a credit card with an embedded chip. A computer's operating system can be configured to allow login using a combination of a username, password, pin number and smard card.
This question is filed under objective 1, Mobile Devices
A smart card, chip card, or integrated circuit card (ICC or IC card) is a physical electronic authorization device, used to control access to a resource It is typically a plastic credit card-sized card with an embedded integrated circuit (IC) chip Many smart cards include a pattern of metal contacts to electrically connect to the internal chip Others are contactless, and some are both Smart cards can provide personal identification, authentication, data storage, and application processing Applications include identification, financial, mobile phones (SIM), public transit, computer security, schools, and healthcare Smart cards may provide strong security authentication for single sign-on (SSO) within organizations… Read More
16) Due to a recent increase in cellular data usage your employer has released a new policy that says company owned mobile devices are not to be connected to other mobile devices for the purposes of sharing the device's cellular data service. What feature is the policy referring to?
Many phones have a feature called hotspot, which allows the phone to act as a Wireless Access Point (WAP). Other devices connected to the phone can use the phones connection to the internet over cell service (4G, LTE, etc.). This feature can cause high data-usage fees and may even incur special charges from some mobile service providers.
This question is filed under objective 1, Mobile Devices
17) Which option is a reversible connector based on an open specification?
USB C is an open specification used by many mobile devices like phones, tablets and laptops. It is an open specification because it is not proprietary to any single company and instead can be used in products by any vendor. A key feature is USB-C is that it is reversible while previous USB versions were not.
This question is filed under objective 1, Mobile Devices
USB-C (formally known as USB Type-C) is a 24-pin USB connector system with a rotationally symmetrical connectorThe USB Type-C Specification 10 was published by the USB Implementers Forum (USB-IF) and was finalized in August 2014 It was developed at roughly the same time as the USB 31 specification In July 2016, it was adopted by the IEC as "IEC 62680-1-3"A device with a Type-C connector does not necessarily implement USB, USB Power Delivery, or any Alternate Mode: the Type-C connector is common to several technologies while mandating only a few of themUSB 32, released in September 2017, replaces the USB 3… Read More
18) What is the function of a digitizer in a modern smart phone?
The term Digitizer refers to the touch screen digitizer used by modern mobile phones, tablets and laptops. The Digitizer converts input (a user touching their fingertip to the screen) into digital data that can be used by the operating system.
This question is filed under objective 1, Mobile Devices
19) Your employer offers company owned cellphones to some employees. A ticket has been created by an employee stating their cellphone is not connecting to the company WiFi. What troubleshooting step should be done first?
Smart phones, including all iOS and Android devices, have the ability to disable WiFi using a system setting. You should always start with the simple troubleshooting steps first, like verifying WiFi is enabled.
This question is filed under objective 1, Mobile Devices
20) What type of battery is most common for use in mobile devices like laptops and smart devices?
Lithium ion batteries are the most common type for small mobile devices like laptops and smart devices
This question is filed under objective 1, Mobile Devices
A lithium-ion battery or Li-ion battery is a type of rechargeable battery Lithium-ion batteries are commonly used for portable electronics and electric vehicles and are growing in popularity for military and aerospace applications A prototype Li-ion battery was developed by Akira Yoshino in 1985, based on earlier research by John Goodenough, M Stanley Whittingham, Rachid Yazami and Koichi Mizushima during the 1970s–1980s, and then a commercial Li-ion battery was developed by a Sony and Asahi Kasei team led by Yoshio Nishi in 1991In the batteries, lithium ions move from the negative electrode through an electrolyte to the positive electrode during discharge, and back when charging… Read More
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