CompTia 220-1101

Which of the actions listed below should be of help while troubleshooting non-responsive touchscreen of a mobile device? A) reseating the device's battery B) Erasing all content/settings and restoring the device to factory defaults (factory reset/hard reset) C) Pressing a specific key combination/button to perform system restart (soft reset) D) removing screen protector and cleaning the screen E) All of the above

All of the Above

Which of the following are examples of universal connection types that enable mobile device synchronization? A) IEEE 802.11 B) USB-C C) Cellular D) Bluetooth E) IEEE 802.3 F) All of the above

All of the above

A dim display on a laptop LCD screen might indicate a problem related to:

Backlight Inverter

A popular, short-range wireless technology used for connecting various personal devices in a WPAN is known as:

Bluetooth

Which of the answers listed below refer to the 2G/3G mobile telecommunications standards? (Select 2 answers) A) CDMA B) NFC C) CWDM D) GSM E) CSMA

CDMA (code-division multiple access) GSM (global system for mobile communication

Common fix for cursor drift

Calibration

Which type of peripheral hardware would require the replacement of a burned-out bulb?

Computer projector

Which of the following hardware components would be the most difficult to replace on a laptop computer? A) optical drive B) primary storage C) system board D) Integrated GPU E) secondary storage

D) Integrated GPU

Examples of connectionless protocols include: (Select 2 answers)

DHCP TFTP

A network protocol providing an alternative solution to the manual allocation of IP addresses is known as:

DHCP (Dynamic Host Configuration Protocol)

Which of the following answers refers to a system containing mappings of domain names to various types of data, such as numerical IP addresses? TCP/IP DNS SQK DHCP

DNS

LDAP is an example of:

Directory access protocol

POP3 protocol is used for:

Email retrieval

A tiny spot on an LCD monitor display screen that permanently remains black when it should be activated and displaying color is commonly referred to as stuck pixel. (T or F)

False

IPS, TN, and OLED are all implementations of the LCD display technology (T or F)

False

What is the function of FTP

File exchange

Which of the answers listed below refer to common applications that make use of TCP? (Select 3 answers)

File transfer Email communication Web browsing

Two biometric authentication methods implemented in modern laptops:

Fingerprint scan Facial recognition

Which laptop feature allows to overcome standard keyboard size restrictions?

Fn Key

A mobile device's built-in functionality enabling the usage of locator applications is called:

GPS

Which network protocol enables retrieving contents of an Internet page from a web server?

HTTP

What is the name of a network protocol that secures web traffic via SSL/TLS encryption?

HTTPS (Hypertext Transfer Protocol Secure)

Three characteristic features of magnetic drives

High capacity Low device cost Low performance

Three characteristic features of In-Plane Switching (IPS)

High color quality Wide viewing angles Slow response times

Three characteristics of Vertical Alignment (VA) display technology

High contrast ratios Good viewing angles Good color quality

A mobile device can be used for creating a wireless/cellular data network with the use of (three answers)

Hotspot Tethering Bluetooth

In computer security, the term "Biometrics" refers to physical characteristics of the human body that can be used for:

Identification and access control purposes

Display technology most commonly used in modern laptops:

LCD

A type of backlight technology most commonly used in modern laptop devices is called:

LED (light emitting diode)

What is the name of a proprietary connector type used by Apple mobile devices?

Lightning connector

Two common battery types that can be found in modern potable devices:

Lithium-ion (Li-ion) and Lithium-ion polymer (LiPo)

When a computer monitor is unable to display image on the screen, the most common causes (and the easiest ones to fix) for this problem include:

Loose cable connections Wrong input selection

Three phrases to describe Twisted Nematic (TN) technology

Low viewing angles Fast response times Low color quality

Dedicated mobile app management software

MAM (Mobile App Management)

Which type of software enables centralized administration of mobile devices? A) MFA B) MMC C) MDM D) MFD

MDM

Which of the following facilitates the enforcement of mobile device policies and procedures? A) MFA B) MMC C) MDM D) MFD

MDM (Mobile Device Management)

Two answers that refer(s) to internal data storage device type(s) used in laptop computers

Magnetic disks and SSDs

A technology implemented in modern laptops that enables data transfer and authentication features between the laptop and another portable device at a very close range is known as:

NFC

A very short-range communication method where a wireless signal is sent between two devices that are touching or nearly touching each other is a characteristic feature of:

NFC (near field communication)

Location of a laptops Wi-Fi antenna

Near the top, inside the display case

Which of the following is in use when a WINS server tries to resolve a host name into an IP address on a Windows-based LAN? DNS TCP/IP NetBIOS DHCP

NetBIOS

IMAP4 (Internet Message Access Protocol, version 4)

Offers improved functionality in comparison to POP3 Serves the same function as POP3

Due to size restrictions and the compact nature of laptop devices, this type of storage media has become less commonly found on new laptops.

Optical drives

Refers to a security feature used in Bluetooth device pairing process

PIN code

A database on a mobile device containing bands, sub-bands and service provider IDs allowing the device to establish connection with the right cell phone tower is called:

PRL (Preferred Roaming List)

What are the characteristics of SMB/CIFS?

Provides shared access to files, directories, and devices Used mainly by computers running Microsoft Windows operating systems

Telnet: (Select 3 answers)

Provides username and password authentication Transmits data in an unencrypted form Enables remote login and command execution

Which of the following answers refers to a Microsoft-proprietary remote-access protocol providing a user with graphical interface for connecting to another computer over a network? RDP SSH VNC Telnet

RDP

Three features of Solid-State Drives (SSDs)

Relatively high device cost Lower capacity in comparison to magnetic drives High performance

A type of protocol used in network management systems for monitoring network-attached devices is called:

SNMP (Simple Network Management Protocol)

What is the most common memory module form factor type used in laptops?

SO-DIMM (small-outline dual-inline memory module)

Which of the answers listed below refers to a secure replacement for Telnet? CHAP FTP SNMP SSH

SSH

A type of cryptographic network protocol for secure data communication, remote command-line login, remote command execution, and other secure network services between two networked computers is known as:

SSH (Secure Shell)

Which of the following answers refer to connection-oriented protocols? (Select 2 answers)

SSH, HTTPS

The SMTP protocol is used for: (Select 2 answers)

Sending email messages between mail servers Sending email messages from a client device

Which of the following answers refers to the capability of a mobile device to share its Internet connection with other devices?

Tethering

Refers to a device capable of both input and output functions

Touch screen

Which of the following answers refer to the function of digitizer? (Three answers) -Translates analog data into a format suitable for computer processing -A type of output devise -component of a movie device's screen that allows to control the device with a stylus or fingertip -an example of media converter -a type of input device

Translates analog data into a format suitable for computer processing Component of a mobile device's screen that allows to control the device with a stylus or fingertip A type of input device

Long Term Evolution (LTE) is a wireless communications standard for mobile devices and wireless hotspots. LTE offers significant improvements in terms of speed when compared to the older generation of 3G cellular networks. LTE and its later revision LTE-Advanced (LTE-A) are often marketed as 4G standards. (T or F)

True

Of the three existing versions of the Simple Network Management Protocol (SNMP), versions 1 and 2 (SNMPv1 and SNMPv2) offer authentication based on community strings sent in an unencrypted form (in cleartext). SNMPv3 provides packet encryption, authentication, and hashing mechanisms that allow for checking whether data has changed in transit (i.e., data integrity). (T or F)

True

The function of the NetBT protocol is to allow NetBIOS services to be used over TCP/IP networks. (T or F)

True

The term "Mobile device synchronization" refers to the process of making the same data available on multiple devices. Synchronized data might include contacts, applications, emails, pictures, music, video, calendars, bookmarks, documents, location data, social media data, e-books, or passwords. Examples of synchronization methods include synchronizing mobile devices to desktop, cloud, or automobile console. (T or F)

True

The term "Mobile hotspot" refers to a type of WLAN that enables network access through a mobile device that acts as a portable WAP. (T or F)

True

Transmission Control Protocol (TCP) is a connection-oriented protocol using a three-way handshake, which is a set of initial steps required to establish network connection. TCP supports retransmission of lost packets, flow control (managing the amount of data that is being sent), and sequencing (rearranging packets that arrived out of order). (T or F)

True

User Datagram Protocol (UDP) is an example of a connectionless protocol. Because UDP does not support a three-way handshake while establishing a network connection, it is referred to as an unreliable or best-effort protocol. (T or F)

True

Examples of USB ports that can be found on mobile devices include: (Select 3 answers)

USB-C, Micro-USB, Mini-USB

Two functions of a laptop's inverter

Used for supplying voltage to backlights in older types of LCD panels Converts DC power into AC power

Docking stations:

Usually offer additional ports and capabilities compared to port replicators Typically are designed to work only with a specific laptop make and model (proprietary model)

Which of the following answers refer(s) to common applications of UDP? (Select all that apply)

Video conferencing Live streaming Online gaming Voice over IP (VoIP)

Which type of expansion card enables communication on 802.11 networks?

WLAN (Wireless Local Area Network)

Which of the following answers refers to a laptops Bluetooth module? WWAN WLAN Riser card WPAN

WPAN

A type of expansion card that enables communication over cellular network is referred to as:

WWAN card

Three characteristics of an OLED display

Works without backlight Lower light output (brightness) in comparison to LCDs Better contrast ratio and color representation in comparison to LCDs

A permanent computer display screen discoloration caused by displaying the same static image for extended periods of time is known as:

burn-in

Examples of mobile device synchronization methods for Apple iOS devices include:

iTunes, iCloud

The process of establishing a connection between Bluetooth devices (e.g., between a Bluetooth enabled headset and a Bluetooth-enabled phone) is known as:

pairing

Two SSD form factors used in laptop computers

1.8 Inch 2.5 Inch

The latest standard for mobile telecommunications is known as:

5G