IT CertificationsComprehensive Study Set

Ucertify Comptia A+

90 questions across 0 topics. Use the find bar or section chips to jump to what you need.

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QUESTION 1

Which of the following form factors is normally used for set-top boxes, media centers, and car computers?

ANSWER

Nano-ITX

QUESTION 2

Which of the following items cannot be set through CMOS setup?

ANSWER

IP address

QUESTION 3

When a system keeps losing the proper date and time, what is usually the problem?

ANSWER

Dead CMOS battery

QUESTION 4

Which of the following is the most common expansion slot found in PCs?

ANSWER

PCIe

QUESTION 5

What are the two methods of recovering a forgotten BIOS password?

ANSWER

Removing the CMOS battery Using the reset jumper in the motherboard

QUESTION 6

Which of the following is a succession of built-in diagnostic tests performed when turning on a computer?

ANSWER

POST

QUESTION 7

Which of the following allows for reducing the operating frequency of the CPU during times of less demand or during battery operation?

ANSWER

Throttling

QUESTION 8

Which of the following involves the overwriting of existing firmware or data with new data?

ANSWER

Flashing

QUESTION 9

Which of the following are benefits of using flash memory for storage instead of a hard drive?

ANSWER

Reduced heat Lower power consumption Less noise

QUESTION 10

Which is non-volatile firmware used to perform hardware initialization during the booting process?

ANSWER

BIOS

QUESTION 11

Which of the following types of PC cards is used for memory?

ANSWER

Type 1

QUESTION 12

Which expansion card allows you to connect a broadcast signal to your computer and display the output on the computer monitor?

ANSWER

TV tuner

QUESTION 13

You want to connect to the Internet using an analog dial-up connection. Which of the following devices will you use?

ANSWER

Modem

QUESTION 14

Which of the following display connections provides the best picture?

ANSWER

HDMI

QUESTION 15

You want a cable to charge and transfer data for an Apple mobile device. Which of the following connection types would satisfy your requirements?

ANSWER

Lightning

QUESTION 16

If you attach a gaming PC capable of gaming at 4K/60fps to your TV, you will need which interface for data transmission?

ANSWER

HDMI

QUESTION 17

Which interface combines PCIe and DisplayPort into one serial bus and was developed by Apple?

ANSWER

Thunderbolt

QUESTION 18

Which custom configuration is most likely to include a RAID array?

ANSWER

Network-attached storage device

QUESTION 19

Which of the following are essential components to build a CAD/CAM design workstation?

ANSWER

Specialized hard drive Maximum RAM High-end video

QUESTION 20

Which of the following are essential components to build a graphic design workstation?

ANSWER

High-performance SSD Powerful GPU Enhanced cooling mechanism

QUESTION 21

Which of the following is designed to create blueprints and advanced designs?

ANSWER

CAD workstation

QUESTION 22

You are tasked to build a gaming PC for a user. Which of the following recommended configuration will you choose?

ANSWER

Multicore processor Specialized GPU unit Maximum RAM

QUESTION 23

A technician works for a company that has virtual servers and virtual desktops. The company hires a user who only needs to access the virtual desktops. Which of the following is the most cost-effective workstation to purchase?

ANSWER

Thin client

QUESTION 24

A remote user calls a help desk technician asking how to print double-side of pages from a multi-function printer. What should the technician tell to the user to configure in the printer settings?

ANSWER

Duplex

QUESTION 25

A user wants pages 1-10 separated from 11-20 when they are retrieved from the printer. Which of the following settings would the user change in the print job to ensure the pages are separated?

ANSWER

Collate

QUESTION 26

What is the first step in the laser printing process?

ANSWER

Cleaning

QUESTION 27

A technician receives multiple calls from users stating that documents submitted to a shared printer are not printing. The technician can ping the device to confirm it is powered on and connected to the network. The technician successfully prints a test page from the device control panel. Which of the following should the technician perform next?

ANSWER

Restart the print spooler.

QUESTION 28

Which of the following is the term used to indicate any kind of delay that happens in data communication over a network?

ANSWER

Network latency

QUESTION 29

Which connectors are used to connect a DSL modem to a network card and to a phone line?

ANSWER

RJ-45 RJ-11

QUESTION 30

Which type of network cable does not give off noxious or poisonous gases when burned and can be run through firebreak walls?

ANSWER

Plenum

QUESTION 31

Recently, a company updated its network infrastructure. A user reports that a laptop is experiencing slower network speeds since the update. Which of the following would the technician replace, rather than purchase a new device?

ANSWER

NIC

QUESTION 32

Which technology allows the electrical current necessary for the operation of each device to be carried by the data cables rather than by power cords?

ANSWER

PoE

QUESTION 33

A SOHO environment utilizes network hardware address filtering to minimize unauthorized use of its network infrastructure. A technician has been asked to install a shared network printer in the environment. Which of the following must the technician know in order to add the printer to the environment?

ANSWER

MAC address

QUESTION 34

How many bits are included in IPv4 binary addresses?

ANSWER

32

QUESTION 35

A device on an organization's network has the 10.224.191.123 IP address. Which class of private IP address does it belong to?

ANSWER

Class A

QUESTION 36

An organization is using Class B private IP addresses for the internal network. Which of the following represent a valid IP address that can be used?

ANSWER

172.16.111.155 172.31.1.22

QUESTION 37

Which of the following is considered as an IPv4 loopback address?

ANSWER

127.0.0.1

QUESTION 38

Which is a remote access protocol that allows a command-line terminal interface with a remote system?

ANSWER

Telnet

QUESTION 39

Which of the following default ports is used by HTTPS?

ANSWER

443

QUESTION 40

What is the autoconfigured address range in IPv6?

ANSWER

FE80::

QUESTION 41

Which of the following is a client-server protocol in which servers manage a pool of unique IP addresses and assign addresses out of those address pools?

ANSWER

DHCP

QUESTION 42

Which is a valid IP address assigned through Automatic Private IP Addressing (APIPA)?

ANSWER

169.254.254.223

QUESTION 43

What is the default subnet mask for a Class B address in IPv4?

ANSWER

255.255.0.0

QUESTION 44

Which of the following default port numbers is used by the SFTP protocol?

ANSWER

22

QUESTION 45

Which of the following protocols are used for messaging?

ANSWER

SMTP POP3 IMAP

QUESTION 46

Which of the following protocols are present at the Application layer of the TCP/IP model?

ANSWER

AFP RDP

QUESTION 47

Which of the following protocols are present at the Internet layer of the TCP/IP model?

ANSWER

ICMP ARP

QUESTION 48

Which of the following is an advantage of using DHCP for network addressing?

ANSWER

Simplified configuration

QUESTION 49

A user wants to implement a wireless router that will have the fastest data speeds and operate over the 5 GHz frequency. Which of the following standards should the user select?

ANSWER

802.11ac

QUESTION 50

Which is an open global standard for wireless technology designed to use low-power digital radio signals for personal area networks?

ANSWER

ZigBee

QUESTION 51

Which of the following uses electromagnetic fields to automatically identify and track tags attached to objects?

ANSWER

RFID

QUESTION 52

Which type of computer network is carried over a low-powered, short-distance wireless network technology such as IrDA, Wireless USB, Bluetooth, or ZigBee?

ANSWER

WPAN

QUESTION 53

Which type of Internet connection uses the facilities of the PSTN to establish a connection to an ISP?

ANSWER

Dial-up

QUESTION 54

Which type of Internet connection is a set of communication standards for digital telephone connection and the transmission of voice and data over a digital line?

ANSWER

ISDN

QUESTION 55

Which of the following is used for centralizing security management, allowing administrators to manage all their security-related hardware and software through a single device or interface?

ANSWER

UTM

QUESTION 56

Which of the following port numbers is used by the syslog protocol?

ANSWER

514

QUESTION 57

Which is a cloud computing feature through which users can request additional space and the provider allocates additional resources seamlessly to the end user?

ANSWER

Rapid elasticity

QUESTION 58

Which is a cloud computing feature through which users can access additional storage, processing, and capabilities automatically, without requiring intervention from the service provider?

ANSWER

On-demand self-service

QUESTION 59

Which cloud service provides business processes such as payroll, IT help desk, or other services?

ANSWER

BPaaS

QUESTION 60

Which of the following is a cloud computing offering in which a third party hosts the back end of a virtual desktop infrastructure (VDI) deployment?

ANSWER

DaaS

QUESTION 61

Which of the following cloud computing methods allows multiple organizations with common interests to share the cloud infrastructure?

ANSWER

Community

QUESTION 62

Which cloud computing method is a combination of two or more clouds that remain distinct but are bound together, offering the benefits of multiple deployment models?

ANSWER

Hybrid

QUESTION 63

Which is a hardware virtualization technique that allows multiple guest operating systems to run on a single host system at the same time?

ANSWER

Hypervisor

QUESTION 64

What enables the virtual machine to communicate with other virtual machines on the same host?

ANSWER

VNIC

QUESTION 65

Your mobile device is not responding correctly to your touch. What needs to be adjusted?

ANSWER

Calibration

QUESTION 66

A user reports that the cursor jumps to random screen locations when typing on a laptop computer. Which of the following devices is most likely causing this?

ANSWER

Touchpad

QUESTION 67

Which of the following takes DC from the motherboard and converts it into AC for the backlighting?

ANSWER

Inverter

QUESTION 68

Which of the following display technologies uses an organic substance as the semiconductor material?

ANSWER

OLED

QUESTION 69

A laptop's LCD screen can barely be seen despite adjusting the display brightness settings. Which display component is defective?

ANSWER

Backlight

QUESTION 70

Which of the following is a type of docking station for connecting multiple peripherals to an electronic device such as a laptop computer?

ANSWER

Port replicator

QUESTION 71

Your mobile device is not changing the screen position when you move it. What component is malfunctioning?

ANSWER

Accelerometer

QUESTION 72

Wearable fitness tracking devices use which technology to determine user activity levels?

ANSWER

Accelerometer

QUESTION 73

A customer struggles with the small print of most smartphones. The customer still likes the idea of using a smartphone for phone calls and work. Which of the following devices should the technician recommend to the customer?

ANSWER

Phablet

QUESTION 74

A customer asks a technician for a device that has the capability to easily connect a laptop to an external monitor, keyboard, and mouse. Which of the following devices should the technician recommend to the customer?

ANSWER

Docking station

QUESTION 75

A laptop is setup at a podium for a presentation but is set to extended desktop. The presenter would like it to show exactly what the laptop screen is showing. Which of the following would be the quickest way to accomplish this?

ANSWER

Toggle the dual display function key.

QUESTION 76

Which device is optimized for reading digital books, magazines, and newspapers?

ANSWER

E-reader

QUESTION 77

Which technology is designed for only two devices to temporarily communicate over short distances and only one of them even needs to be powered?

ANSWER

NFC

QUESTION 78

The company management wants to be able to give users the ability to work remotely during periods of bad weather. Which of the following should be enabled to allow the workforce to do this?

ANSWER

VPN

QUESTION 79

Which protocol enables email security features by providing encryption, authentication, message integrity, and other related services?

ANSWER

S/MIME

QUESTION 80

What is the final step in the CompTIA troubleshooting model?

ANSWER

Document findings, actions, and outcomes.

QUESTION 81

According to CompTIA, what is the first step in the troubleshooting theory?

ANSWER

Identify the problem.

QUESTION 82

Which step of the troubleshooting methodology inquires regarding environmental or infrastructure changes?

ANSWER

Step 1

QUESTION 83

You are tasked to troubleshoot a motherboard problem. You have established a plan of action to resolve the problem and implement the solution. What will you do next?

ANSWER

Verify full system functionality.

QUESTION 84

A technician is tasked with finding and labeling where a network connection terminates in a patch panel. Which of the following tools would be best for the technician to use?

ANSWER

Tone generator and probe

QUESTION 85

A technician cannot communicate with one particular IP address and needs to narrow down where the traffic is stopping. Which of the following commands would be used to determine this?

ANSWER

tracert

QUESTION 86

A technician needs to attach a network cable to a wall jack in the meeting room. After running the cable through the conduit to the meeting room, which of the following tools would best be used to connect the cable to the wall jack?

ANSWER

Punch down

QUESTION 87

A technician is troubleshooting a desktop that is having intermittent issues with locking up and system errors. The technician suspects that the problem might be that not enough power is getting to the motherboard. Which of the following tools would a technician use to determine if the hypothesis is correct?

ANSWER

Multimeter

QUESTION 88

Which of the following commands is used for diagnosing and troubleshooting DNS problems?

ANSWER

nslookup

QUESTION 89

Which ipconfig switch is used to issue the IP addressing information assigned to the computer by the DHCP server or APIPA?

ANSWER

/release

QUESTION 90

Which command will you use to check out the inbound and outbound TCP/IP connections on your machine?

ANSWER

netstat

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