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Compita > CompTia A+ 2001 Module 1 > Flashcards

CompTia A+ 2001 Module 1 Flashcards

1
Q

What are the two types of passwords that can be enabled in the BIOS?

A

The User and Supervisor passwords.

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2
Q

what are user password?

A

The User password can be enabled and this will prevent the OS from starting.

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3
Q

what are supervisors password?

A

The Supervisor Password when enabled can prevent access to the BIOS and prevents changes from being made.

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4
Q

What is the TPM?

A

Trusted Platform Module is a chip on the motherboard that can be added or built-in

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5
Q

What does the TPM do?

A

It enables Full Disk Encryption by maintaining the encryption keys for encryption and decryption of the disk.

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6
Q

What is Lojack?

A

Lojack is a software that can be installed in the BIOS

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7
Q

what is Lojack used for?

A

track, disable, and shutdown a laptop if lost or stolen if it’s connected to the Internet.
the software automatically installs to the hard drive, so if the hard drive is removed and replaced, the software is installed again on the new hard drive thus enabling it to still be located.

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8
Q

What does POST stand?

A

POST – Power On Self-Test

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9
Q

what is POST used for

A

portion of the boot process that a computer goes through to check if its hardware components are working correctly.

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10
Q

What is the purpose of a POST card?

A

POST card connects to the motherboard of the system and visually displays the POST error code to display error codes during the POST.

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11
Q

What is a peripheral?

A

Any device that can be plugged in or connected to a computer.

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12
Q

What are Input Peripheral?

A

Input Peripherals are any of the unlimited number of devices that can plug into a computer to INPUT information into the system.

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13
Q

What are Output Peripherals?

A

Output Peripherals are any number of unlimited devices that provide output of data from a computer.

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14
Q

Where is the BIOS located on a system?

A

The BIOS chip is on the motherboard.

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15
Q

What is UEFI?

A

The Unified Extensible Firmware Interface, new generation BIOS that was implemented by Chip manufacturers can:
● Boot from large GPT disks (>2.2TB) ● Pre-boot has its own OS
● Able to connect remotely

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16
Q

What is a System Unit?

A

System unit is comprised of the CPU, hard drives, memory, motherboard, and other internal components.

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17
Q

What is the purpose of the CMOS?

A

legacy BIOS, settings were saved to CMOS so a constant power source was needed to maintain the configuration.

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18
Q

12.What does virtualization has to do with the BIOS of a computer?

A

Enabling virtualization support is simple as enabling the feature in the BIOS. By enabling this feature, the system would then support virtualization.

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19
Q

What is Secure Boot?

A

Secure boot is a security standard developed by members of the PC industry to help make sure that a device boots using only software that is trusted by the Original Equipment Manufacturer (OEM).

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20
Q

What is the BIOS?

A

BIOS is what actually “starts” your system. BIOS performs hardware checks on a computer system and starts up the OS.

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21
Q

What is the Boot Sequence?

A

The list of devices and the order in which they should be checked and be found and arranged in the CMOS setup utility.

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22
Q

True or False? UEFI supports Secure Boot

A

True. It supports Secure Boot, which means the operating system can be checked for validity to ensure no malware has tampered with the boot process.

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23
Q

True or False? The UEFI configurations and settings are saved to the CMOS battery.

A

False. Changes to the UEFI are saved to flash memory. Does not need to be saved to CMOS.

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24
Q

True or False? On motherboards with the newer UEFI BIOS, the date and time settings are saved to the CMOS battery.

A

True. In newer systems with UEFI, the CMOS battery simply keeps the date and time.

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25
Q

True or False? The System Unit is considered to be the computer, its internal components, and all peripherals connected to it.

A

False. The System unit is comprised of the CPU, hard drives, memory, motherboard, and other internal components.

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26
Q

The CMOS saves configurations and settings from the motherboard even in loss of power situations when its battery is removed.

A

False. CMOS has to have a power source to store the settings.

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27
Q

Which of the following form factors is the most common on the PC market?

A

ATX is the most common form factor on the market today

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28
Q

If someone were to ask about the Northbridge on your system, what are they referring to?

A

The Chipset of the system

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29
Q

Standard ATX

A

12 x 9.6

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30
Q

Micro-ATX

A

9.6 x 9.6

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31
Q

MINI-ITX

A

6.7 X 6.7

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32
Q

Riser Card

A

A riser card is a board that plugs into the system board and provides additional slots for adapter cards.​

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33
Q

What two companies are the most common in the chip marketplace?

A

INTEL & (c) AMD

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34
Q

In the PCIe bus, what is the total number of full duplex lanes that can be utilized by a device?

A

The total number of full-duplex lanes that can be utilized is 32 or x32.

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35
Q

What is the best way to determine the total capacity of RAM your motherboard is rated for?

A

Check with the motherboard manufacturer

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36
Q

USB, Audio, SATA, IDE, & CMOS Memory are all functions controlled by what chipset?

A

The Southbridge Chipset

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37
Q

True or False. The PCI bus system is a function of the Southbridge Chipset.

A

True – the PCI bus system is a function of the Southbridge Chipset

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38
Q

SO-DIMM DDR4

A

260 pins

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39
Q

SO-DIMM DDR3

A

204 pins

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40
Q

SO-DIMM stands

A

Small Outside Dual Inline Memory Module

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41
Q

DIMM DDR4

A

288 pins

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42
Q

DDR RAM transfers data on both the rising and the falling of the clock cycle or “twice for cycle.”

A

True

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43
Q

SDRAM fetches data twice per cycle.

A

False

44
Q

The three types of memory bus are

A

control, data, address

45
Q

Which RAM technology can only detect errors within memory but cannot correct it?

A

Parity

46
Q

Which RAM technology can both detect and correct errors?

A

ECC

47
Q

If your system does not obtain an IP address from a DHCP server in a certain period of time, what type of address will windows issue the computer?

A

APIPA

48
Q

What types of network consists of multiple, separate LANs and is typically connected through an ISP’s network?

A

Metropolitan Area Network

49
Q

You are a technician called to trouble shoot a computer that will not connect to the Internet. The computer has a static IP address assigned to it. You run the command “IPCONFIG” and review the output. The IP address is correct, the subnet mask and DNS is correct, what other configuration problem would you look for?

A

Check the gateway address

50
Q

What device is used to connect multiple hosts on the network receives network traffic in one port and then forwards that traffic out of the remaining ports?

A

Hub

51
Q

True or False. A UDP traffic stream to a client sends an acknowledgment packet to the destination device to ensure that the data was received at the destination.

A

False – This is the function of TCP not UDP

52
Q

An IPV4 IP address is comprised of how many octets?

A

4

53
Q

When configuring an IP address on a computer, what are the four pieces of information
that you need?

A

IP address, subnet mask, DNS, and gateway

54
Q

This type of Internet connection has commonly higher latency than other services due to its non-terrestrial properties. What connection type is this?

A

Satellite Internet is a non-terrestrial service provided by a Satellite.

55
Q

The wireless standard 802.11a operates at what frequency?

A

5GHz

56
Q

The throughput of 802.11b is:

A

11Mbit/s

57
Q

What device receives network traffic and forwards traffic to the destination host based on MAC addresses?

A

Switch

58
Q

A workstation network that you are troubleshooting cannot connect to the Internet nor reach the company file server. Upon inspecting the IP address configuration, you notice the following IP address information :
IP address: 169.254.0.229 Subnet mask: 255.255.0.0 Gateway: 0.0.0.0
DNS: 0.0.0.0
What could be the problem?

A

The workstation has an APIPA address– the workstation did not receive an IP address
within a certain period of time and was issues an APIPA IP address by the operating
system

59
Q

A client has a request for an Internet gateway device that will provide Internet access for all of his network’s computers, prevent unwanted access to non-work approved sites, and stop unwanted access to the network from the outside. What type of device is the client asking for?

A

Firewall

60
Q

What device will allow wireless users on a network connect to the wired network and use available resources?

A

Access point

61
Q

Which wireless standard has the theoretical total throughput speeds of 6.8GB?

A

802.11ac

62
Q

A web server has the ability to cache a network users browser request and also retrieved web request for the user, then present it back to them.

A

False – This device would be a proxy server

63
Q

True or False: Sometimes a router will have a built-in access point or wireless router inside of some units.

A

True

64
Q

What protocol is responsible for delivering data from one network host to another?

A

IP

65
Q

A device designed to filter and transfer IP packets between dissimilar types of computer networks is called a:

A

Router

66
Q

What are the CompTIAA+Best Practice Methodology steps to problem solving?

A

a. Identify the problem
b. Establish a theory of probable cause (question the obvious)
c. Test the theory to determine the cause
d. Establish a plan of action to resolve the problem and implement the solution
e. Verify full system functionality and if applicable, implement preventive
measures
f. Document findings, actions, and outcomes

67
Q

What broad term describes the process of enabling organizations to implement changes to IT infrastructure in a safe and cost-effective manner?

A

Change management

68
Q

John has proposed upgrading the inkjet printers in the marketing department with color laser printers. The purpose of the change is to reduce the cost per page printed, because toner is less expensive than ink and the duty cycle of laser printers is longer than that of inkjet printers. John was given the green light to proceed with the change. What is John’s next logical step?

A

He should create a backup plan in the case the quality of the print with the laser printers isn’t sufficient for marketing materials.

69
Q

You received a call from the guest services department that the LCD monitor has experienced burn-in due to a constant image being displayed for long periods of time. The monitor is used to display directions and various rooms in an event center. What should be done to resolve the issue?

A

Replace the LCD monitor with a “pixel shifting” LCD monitor.

70
Q

You are configuring a workstation with a manual IP address and once the configuration is saved, you get a Windows error message informing you that an “IP address conflict” has occurred. What is the next step in resolving this issue?

A

Reboot or reset the nic to resolve the issue. Change the settings back and start again with a different IP address.

71
Q

You are troubleshooting a workstation on the company network. The user reported that everything they try to open or download is slow. You examine the workstation and determine that opening network shares, connecting to device resources, and connecting to the Internet is indeed very slow. No other computer on the network is having this issue. What is the next step in troubleshooting to test?

A

The nic on this workstation is the next logical step in the trouble shooting process.–No other device on the network is having an issue so the issue is isolated to this workstation. The next step would be to troubleshoot / examine the hardware that connects this workstation to the network which is the nic card.

72
Q

Users in a manufacturing company complain that their laptops cannot connect to the wireless network. There is one access point installed for wireless users and it is located in the main office which is in the front of the building. The wireless users that have laptops are located in the accounting office’s which are located in the rear of the building. The manufacturing shop floor is in between the front office and the accounting offices. What should you do to resolve this issue?

A

Move the access point closer to the wireless users, its placement is not practical for the wireless users.

73
Q

If a computer has been issues an APIPA IP address, what does this signify?

A

The computer has not received an IP address from the DHCP server in a period of time.

74
Q

A user reports that every letter that they type on their keyboard results in a number for the output. What could the problem be?

A

The num lock key has been inadvertently turned on and therefore every letter outputs to the number.

75
Q

True /False. You are configuring user email accounts to employees that need to access their email from multiple devices throughout the corporation. This is due to their job changing and they have to move to different locations and work from different workstations. Because of this requirement, POP3 would be the best choice in the email protocol to be configured on the workstations.

A

False – IMAP4 would be the better choice because POP3 is limited.

76
Q

A user reports that the company issued mobile phone they are using will not stay charged very long. The battery is charged before they enter the work area which is located in subway tunnels, but later on the day, the battery indicator is low. What is the resolution for this employee’s problem?

A

The employee needs to turn the phone to airplane mode before entering. the work area.

77
Q

True or False. A Windows computer only logs events that pertain to hardware related issues.

A

False - Windows will log both software and hardware issues to the event log.

78
Q

On a mac OS, if there is a wait for an application, what happens to the cursor?

A

The cursor turns into the spinning wait cursor

79
Q

True or False. If a mobile device has a problematic app, the first step in troubleshooting should be to stop and restart the app.

A

True

80
Q

Betty calls the helpdesk to report that when she booted up her computer she received a message on her screen reporting a “Boot device was not found”. Betty said that sherebooted the computer several times and received the same message. She reported in her call to the help desk that nothing changed on her computer as far as she knows and when she left work last night. The only thing she was doing before she shutdown her computer for the day was copying files from a storage drive to her computer. As the technician dispatched to resolve the problem, what would be your first thing to check?

A

Check if a storage device was left plugged into the computer and remove it. Check to
see if the computer was attempting to boot from a storage device left plugged into it.

81
Q

Betty boots up her computer in the morning and hears a pattern of beeps. After the beeps the computer shuts back down. She reports the problem to the helpdesk and your are dispatched to solve the problem. What will be your first steps in resolving the issue?

A

Restart the computer and check for visual POST error codes. If none use a POST card, copy the code and refer to the manufacturer’s documentation to diagnose the problem.

82
Q

A user reports that they received a message that there was “no network access”. They cannot reach any of the network share drives or the Internet. You check the computer and find there is no link light on at the network interface card. What is the next logical step in troubleshooting this problem?

A

Test the nic card. This would be the next logical step in troubleshooting a no link light. This could be using the hardware diagnostics feature or plug the cable into another computer to see if the same result happens​.

83
Q

True or False. A computer that continues to have the wrong time will need the BIOS flashed.

A

False, most likely the CMOS battery needs to be replaced.

84
Q

True or False. If wireless clients are on the same channel as the access point, it does not matter if other equipment is on the same channel also; the clients will always find and stay connected to the access point.

A

False, the clients could experience interference from the other equipment and have connection problems.

85
Q

True or False. If a computer experiences no power at boot that is a clear sign that the power supply has failed.

A

False, there could a variety of reasons why there is no power at boot including a bad power cord or no power at the outlet. Check other possibilities.

86
Q

Ethernet is a family of protocols that fall under the IEEE _________ standard.

A

801.2

87
Q

Which of the following is the connection speed of an Ethernet?

A

10BaseT

100BaseT

1000BaseT

88
Q

In 10BaseT, 100BaseT and 1000BaseT, 10,100,1000 refers to what?

A

Transmission speed

89
Q

You want to connect all the computers of your electrical motor workshop. You want to use a
cheaper but effective option for cables. Which type of cable you will most likely choose?

A

STP

90
Q

Ethernet works in the _____________ and ___________ layers of the OSI model?

A

Physical, Datalink

91
Q

You are using a Cat6 cable for your LAN network. What will be the distance limitation of
the cable you are using?

A

55 Meters

92
Q

Which connector is used to connect telephone equipment to the telephone jack?

A

RJ-11

93
Q

_________ and __________ are two ANSI/TIA standards for connecting the RJ-45 connector
to the UTP cable.

A

T568A, T568B

94
Q

What is true about a multimode fiber optic cable?

A

a) It transmits multiple light signals at the same time
b) multiple reflection angles are used
c) It is used for relatively short distances

95
Q

Upto how many devices can a single USB connector support?

A

127

96
Q

Single mode fiber optic cables allow high transfer rates over long distances.

A

True

97
Q

RG59 provides more bandwidth than RG6.

A

False

98
Q

The maximum bandwidth of USB 3.0 is approximately __________ times faster than USB
2.0.

A

10

99
Q

USB 2.0 provides __________ mbps speed.

A

480

100
Q

Which USB connector supports Apple Thunderbolt? (

A

USB type c

101
Q

Which of the following cables carry both data and power?

A

USB

Lightning

102
Q

Which of the following technologies provide the highest speed?

A

SATA

103
Q

A SCSI connector allows a maximum of ________ devices.

A

8

104
Q

Which of the following is false about VGA?

A

It is also called AE-15

105
Q

Which of the following is false about HDMI?

A

It can only handle single video resolutions

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