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1920 Computer Hardware 220-1001 > RG: Practice Exam 2 > Flashcards

RG: Practice Exam 2 Flashcards

1
Q

What is the process of updating the BIOS called?

A. Pairing

B. Elevating

C. Flashing

D. Flushing

A

C. Flashing

The process is referred to as flashing the BIOS. It simply means the old instructions are deleted from the EEPROM chip, and the new instructions are written to the chip. Pairing is the process of connecting two Bluetooth devices. Elevating and flushing are not terms used when discussing the BIOS.

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2
Q

________________ is a measurement of the rate at which the clock signal oscillates and is expressed in millions of cycles per second or megahertz.

A. Wire speed

B. Clock rate

C. Primary rate

D. Clock cycle

A

B. Clock rate

The clock speed, or external speed, is the speed at which the motherboard communicates with the CPU. It’s determined by the motherboard, and its cadence is set by a quartz crystal (the system crystal) that generates regular electrical pulses. Wire speed is the maximum available speed on a link. Primary rate is a type of ISDN connection. Clock cycle refers to the amount of time between two pulses of an oscillator.

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3
Q

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

A. Calibration

B. Resolution

C. Refresh rate

D. Accelerometer

A

D. Accelerometer

The accelerometer changes the screen orientation from landscape to portrait based on the position of the device. If it is not working correctly, this behavior will occur. Calibration is the adjustment of the screen to your touch. Resolution is the number of colors supported. Refresh rate is the rate at which the screen is redone.

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4
Q

An IPv4 address of 194.16.3.1 falls into which network class?

A. Class A

B. Class B

C. Class C

D. Class D

A

C. Class C

An address in which the first octet is between 192 and 223 is a Class C address. An address in which the first octet is between 1 and 126 is a Class A address. An address in which the first octet is between 128 and 191 is a Class B address. An address in which the first octet is between 224 and 239 is a Class D address.

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5
Q

At what port does Telnet run?

A. 53

B. 80

C. 23

D. 443

A

C. 23

Telnet runs at port 23. Port 53 is DNS. Port 80 is HTTP, and port 443 is HTTPS.

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6
Q

Which of the following cellular technologies offers the best potential performance?

A. HSPR

B. HSPR+

C. LTE

D. EVDO

A

C. LTE

4G Long Term Evolution (LTE) offers potential data rates competitive with 802.11 standards. HSPR, HSPR+, and EVDO are all earlier cellular technologies that are not as capable.

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7
Q

A BIOS intrusion detection notification informs you of what?

A. Unauthenticated logins

B. Opening of the case

C. Access to the BIOS

D. Malware attacks

A

B. Opening of the case

This may also be referred to as chassis intrusion detection or possibly a case open warning. These notifications do not alert you to unauthenticated logins, access to the BIOS, or malware attacks.

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8
Q

Replacing which of the following items usually requires soldering?

A. DC jack

B. Battery

C. Touchpad

D. Antenna

A

A. DC jack

Replacing a bad DC jack usually requires soldering. If this is not a skill you possess, just replace the motherboard. The other components can be replaced without soldering.

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9
Q

Which of the following display connections provides the best picture?

A. DVI

B. VGA

C. DisplayPort

D. HDMI

A

D. HDMI

While both DVI and HDMI provide a high-quality digital picture, the HDMI connection will be the best. Display port is better than VGA but not as good as either DVI or HDMI.

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10
Q

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

A. Dead CMOS battery

B. Bad NIC

C. Bad network cable

D. Missing service pack

A

A. Dead CMOS battery

When the PC is not keeping the correct time or date when turned off, it is usually a CMOS battery issue and a warning that the battery is going to die soon. None of the other failures would cause the system to lose time.

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11
Q

What is the diagnostics process that occurs during every startup called?

A. POST

B. Regedit

C. Polling

D. Syslog

A

A. POST

Every computer has a diagnostic program built into its BIOS called the power-on self-test (POST). When you turn on the computer, it executes this set of diagnostics. Regedit is a registry editing tool. Polling is a network contention method used in mainframes. Syslog is a centralized log management system.

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12
Q

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

A. IP address

B. Port settings

C. Boot order

D. Date and time

A

A. IP address

The most common settings to adjust in CMOS include port settings (parallel, serial, USB), drive types, boot sequence, date and time, and virus/security protections, but they do not include IP address.

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13
Q

Which of the following slot types used for video is being replaced by PCI Express?

A. PCI

B. PCI-X

C. AGP

D. CNR

A

C. AGP

As systems got faster, PC game players wanted games that had better graphics, more realism, and more speed. However, as the computers got faster, the video technology couldn’t seem to keep up, even with the PCI bus. The AGP bus was developed to meet this need. Since 2004 this has been increasingly replaced by PCI Express. PCI and its successor PCI-X (express) are more general-purpose slot types.

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14
Q

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

A. 255.0.0.0

B. 255.255.0.0

C. 255.255.255.0

D. 255.255.255.255

A

B. 255.255.0.0

The default subnet mask for a Class B address is 255.255.0.0. 255.0.0.0 is the default mask for Class A. 255.255.255.0 is the default mask for Class C. 255.255.255.255 is mask designed to match a single IP address rather than a network of IP addresses.

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15
Q

Which of the following is considered the IPv4 loopback address?

A. 0.0.0.1

B. 127.0.0.1

C. 192.168.0.1

D. 255.255.255.255

A

B. 127.0.0.1

On all TCP/IP IPv4 implementations, 127.0.0.1 is the loopback address.

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16
Q

What type of motor is used by an impact printer to move the print head back and forth?

A. Klemson

B. Stepper

C. Wangle

D. Ladder

A

B. Stepper

A stepper motor is a motor that can move in small increments. Printers use stepper motors to move the print head back and forth as well as to advance the paper. Klemson, Wangle, and Ladder are not terms used when discussing printers.

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17
Q

What type of PC card is used for memory?

A. Type I.

B. Type II.

C. Type III.

D. PCMCIA cards cannot be used for memory.

A

A. Type I.

Type I is used mostly for memory. These cards are rarely used in today’s systems since the new laptops have other means of increasing memory, such as SODIMMs. Type II is used for network interface and modem cards, and Type III is used for hard disk drives.

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18
Q

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

A. Calibration

B. Resolution

C. Refresh rate

D. Accelerometer

A

A. Calibration

For a touchscreen device to operate correctly—that is, for it to properly interpret your touch and react accordingly—it must be calibrated correctly. When you touch an item on the screen and nothing happens or a movement that normally results in an expected reaction does not, the calibration of the device is off. Resolution is the number of colors supported. Refresh rate is the rate at which the screen is redone. Accelerometers can be used by mobile devices to determine the movement and tilt of the device.

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19
Q

Which of the following is not an advantage of using flash memory for storage as opposed to a hard drive?

A. Reduced heat

B. Lower cost

C. Lower power consumption

D. Less noise

A

B. Lower cost

The advantages are reduced heat, lower power consumption, less noise, and better reliability since you have no moving parts. The disadvantages are higher cost and less capacity.

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20
Q

What are two methods of resetting a forgotten BIOS password?

A. Rebooting the computer

B. Removing the CMOS battery

C. Reinstalling the operating system

D. Using the reset jumper in the motherboard

A

B. Removing the CMOS battery

D. Using the reset jumper in the motherboard

To reset a forgotten password, you can remove the CMOS battery to reset everything. There also may be a Reset jumper on the motherboard. Rebooting or reinstalling will not reset a forgotten BIOS password.

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21
Q

An IP address of 104.16.3.1 falls into which network class?

A. Class A

B. Class B

C. Class C

D. Class D

A

A. Class A

An address in which the first octet is between 1 and 126 is a Class A address. An address in which the first octet is between 128 and 191 is a Class B address. An address in which the first octet is between 192 and 223 is a Class C address. An address in which the first octet is between 224 and 239 is a Class D address.

22
Q

Accelerometers and gyroscopes are used to manage what function in a mobile device?

A. GPS

B. Screen orientation

C. Geotracking

D. Wireless scanning

A

B. Screen orientation

Both accelerometers and gyroscopes can be used by mobile devices to determine the movement and tilt of the device. This means the device can tell which way the screen is being held. It uses this information to automatically adjust the display orientation appropriately with no action on the part of the user. These components have nothing to do with the GPS, geotracking, or wireless scanning.

23
Q

Which of the following is similar to an inkjet printer with the exception that there is a small heater used to heat the ink?

A. Dye jet

B. Heat jet

C. Twist jet

D. Bubble jet

A

D. Bubble jet

Bubble jet printers are similar to inkjet with the exception that there is a small heater used to heat the ink. Dye jet, heat jet, and twist jet are not terms used when discussing printers.

24
Q

What is the autoconfigured address range in IPv6?

A. FE80::

B. ::1

C. 169.254.0.0

D. 255.255.255.0

A

A. FE80::

The autoconfigured address range in IPv6 is FE80::. In IPv4, it is 169.254.0.0. FE80:: is the prefix of a link local IPv6 address.::/1 is the IPv6 loopback address. 255.255.255.0 is a class C subnet mask.

25
Q

The size and shape of a motherboard is called its _______________.

A. Form factor

B. Physical topology

C. Outline

D. Footprint

A

A. Form factor

There are a number of different sizes, or form factors, of motherboards. Physical topology refers to the physical connections in a network. Outline and footprint are not terms used when discussing motherboards.

26
Q

Which of the following cellular technologies is also referred to as 4G?

A. HSPR

B. HSPR+

C. LTE

D. EVDO

A

C. LTE

4G or Long-Term Evolution (LTE) offers potential data rates competitive with 802.11 standards. HSPR, HSPR+, and EVDO are all earlier cellular technologies that are not as capable.

27
Q

Ghosting is occurring on paper coming from your laser printer. Which of the following would likely be causing this?

A. Bad HVPS unit

B. Broken fuser

C. Poor-quality paper

D. Broken cleaning blade

A

D. Broken cleaning blade

Ghosting means you can see light images of previously printed pages on the current page. This is caused by one of two things: bad erasure lamps or a broken cleaning blade. If the HVPS unit dies, there will be no power to the printer. A broken fuser will cause ink-smudged prints, and poor-quality paper can cause jamming and poor print quality.

28
Q

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

A. ATX

B. AT

C. Mini-ITX

D. Nano-ATX

A

D. Nano-ATX

The Nano-ITX is even smaller than the Mini-ITX and is used for set-top boxes, media centers, and car computers. AT is the earliest form factor, followed by ATX.

29
Q

How many bits are included in IPv4 binary addresses?

A. 4

B. 16

C. 32

D. 256

A

C. 32

IP addresses are 32-bit binary numbers.

30
Q

What is the most common reason for moving the DVD drive to the top of the boot order?

A. To listen to music on the DVD

B. To install an operating system

C. To copy data off the DVD

D. To boot to an operating system on the DVD

A

B. To install an operating system

Although it is possible to boot to an operating system on a DVD, that is not the most common reason for moving the DVD to the top of the list. You might set the DVD drive first to boot from a Windows 7 Setup disk on a system that already contains an operating system. All of the other operations are performed with the operating system booted up.

31
Q

Which of the following takes the DC power the laptop is providing and boosts it up to AC to run the backlight?

A. Converter

B. Inverter

C. Polarizer

D. Adapter

A

B. Inverter

The inverter takes the DC power the laptop is providing and boosts it up to AC to run the backlight. A converter is some type of connector or device that converts one signal type to another. An adapter is a connector that connects two dissimilar cable types. Polarizers are optical filters.

32
Q

Which type of networking utilizes POTS?

A. DSL

B. ISDN

C. Cable

D. Dial-up

A

D. Dial-up

With dial-up, you simply add a modem to your computer and connect to an Internet service provider (ISP) over the existing phone lines—also known as the Plain Old Telephone System (POTS) or the Public Switched Telephone Network (PSTN). DSL is a dedicated digital Internet connection. ISDN is also dial-up but is a digital rather than analog transmission. Cable provides an Internet signal along with the cable signal using a splitter.

33
Q

Which connectors are used to connect a DSL modem to a network card and to a phone line? (Choose two.)

A. RJ-8

B. RJ-11

C. RJ-45

D. RJ-60

A

B. RJ-11

C. RJ-45

The network card connects to the DSL modem using a standard RJ-45 connector, and the DSL modem connects to the phone jack using a phone cord that has RJ-11 connectors. There is no RJ-8 or RJ-60 connector type.

34
Q

Laptops often allow you to switch the display to an external monitor. This is accomplished through what type of key combination?

A. Alt

B. Ctrl

C. Fn

D. Shift

A

C. Fn

This is accomplished through an Fn key combination (for example, Fn+F8 on most Dells, Fn+F4 on many HPs, and so on). The Alt, Ctrl, and Shift keys are used in various combinations to perform functions but alone do nothing.

35
Q

The system board’s underlying circuitry is called the __________.

A. Backplane

B. Bus

C. Backbone

D. Artery

A

B. Bus

The computer’s bus moves information into and out of the processor and other devices. The backplane is the back panel of the system. Backbone and artery are not terms used when discussing system boards.

36
Q

A _________________ once activated stays in contact with a monitoring center, allowing you to send the commands to lock the device and delete data via the center if the device is stolen.

A. TPM chip

B. LoJack

C. Wipe master

D. Remote cleaner

A

B. LoJack

LoJack is a product made by Absolute Software that allows you to remotely locate and lock the device and delete the data on a mobile device when it is stolen. When the device has a Trusted Platform Module (TPM) chip present on the motherboard, additional security and options become available for drive encryption. Wipe master and remote cleaner are not terms used when discussing device security.

37
Q

Which of the following networking terms is used to signify delays?

A. Bandwidth

B. Complicity

C. Collusion

D. Latency

A

D. Latency

Latency is the networking term used for delays. Bandwidth is a description of the amount of traffic a link can service. Complicity refers to a level of involvement in an activity. Collusion refers to two or more individuals working in concert for a goal.

38
Q

What technology allows for memory and CPU to be dynamically allocated to the VMs as required?

A. Network-based virtualization

B. Hardware-assisted virtualization

C. Hyperthreading

D. Multitasking

A

B. Hardware-assisted virtualization

The benefit derived from the virtualization product (also called a hypervisor) using hardware-assisted virtualization is that it allows the hypervisor to dynamically allocate memory and CPU to the VMs as required. Network-based virtualization refers to performing network functions such as routing using virtualization. Hyperthreading is the processing of more than one thread at a time. Multitasking is the processing of multiple processes at once.

39
Q

Which of the following is a chip found in the motherboard that can enhance drive encryption security?

A. CMOS

B. TPM

C. EEPROM

D. BIOS

A

B. TPM

When the device has a Trusted Platform Module (TPM) chip present on the motherboard, additional security and options become available for drive encryption. CMOS refers to a particular style of digital circuitry design. EEPROM is chip type that can be erased and rewritten to. BIOS refers to the firmware used to store the low-level hardware instructions and boot order.

40
Q

Which of the following cannot be monitored in the BIOS?

A. Fan speeds

B. Network card traffic rate

C. Intrusion detection notifications

D. Temperature

A

B. Network card traffic rate

NIC traffic rates cannot be monitored in the BIOS. All other options are monitored in the BIOS.

41
Q

What value represents the relationship between the speed of the CPU and that of the motherboard bus speed?

A. CPU vector

B. Multiplier

C. Clock balance

D. Bus conversion

A

B. Multiplier

When the proper CPU speed is known, you must make sure the relationship between the speed of the CPU and that of the motherboard bus is correct. This is done with a value called the multiplier. CPU vector, clock balance, and bus conversion are not terms used when discussing the CPU and motherboard.

42
Q

Which of the following devices goes into an AGP slot?

A. Video card

B. Memory

C. CPU

D. Sound card

A

A. Video card

Advanced Graphics Processor (AGP) slots were made to provide better support for video cards. Memory card go into memory slots. The CPU goes in a CPU slot, and a sound card goes into a general-purpose slot like PCIe.

43
Q

Which of the following is any machine or interface that participates in a TCP/IP network?

A. Workstation

B. Host

C. Client

D. Server

A

B. Host

A host is any machine or interface that participates in a TCP/IP network, whether as a client or as a server. Every interface on a TCP/IP network that must be issued an IP address is considered a host. A workstation is a device operating as a client used by a user. A client is any software than operates in tandem with a server component. A server is a device offering services to a client.

44
Q

Which of the following would most likely be the cause of vertical white lines running down a page coming from a laser printer?

A. A scratch in the EP drum

B. Jammed paper

C. Foreign matter on the transfer corona wire

D. Improper driver

A

C. Foreign matter on the transfer corona wire

The vertical white lines are caused by foreign matter (more than likely toner) caught on the transfer corona wire. A scratch on the drum would cause blank lines in the print. Jammed paper will cause a halt to the printing, and an improper driver will render the device unable to print.

45
Q

What is the first step in the laser printing process?

A. Cleaning

B. Conditioning

C. Writing

D. Developing

A

A. Cleaning

In the first part of the laser print process, a rubber blade inside the EP cartridge scrapes any toner left on the drum into a used-toner receptacle inside the EP cartridge, and a fluorescent lamp discharges any remaining charge on the photosensitive drum (remember that the drum, being photosensitive, loses its charge when exposed to light). The steps are as follows:

Cleaning

Processing

Charging

Exposing

Developing

Transferring

Fusing

46
Q

BitLocker is an example of what type of technology?

A. Virtualization

B. VPN security

C. Drive encryption

D. Malware isolation

A

C. Drive encryption

Many operating systems provide the ability to encrypt an entire volume or drive, protecting a mobile device’s data in the event of theft. A good example of this is BitLocker, which is available in Windows Vista, Windows 7, and Windows 8. Virtualization allows for running multiple virtual machines on a physical host. VPN security is provided through encryption. Malware isolation is typically done to study the malware.

47
Q

Which of the following services leases IP addresses to hosts?

A. DNS

B. DHCP

C. NFS

D. Telnet

A

B. DHCP

The DHCP service leases IP addresses to hosts and automatically configures them to use the TCP/IP network. DNS resolves hostnames to IP addresses and vice versa. NFS is a file system created by Sun. Telnet is a remote access technology.

48
Q

What is the firmware called that contains settings that can be manipulated and diagnostic utilities that can be used to monitor the device?

A. Registry

B. BIOS

C. CMOS

D. TPM

A

B. BIOS

The firmware called the Basic Input/Output System (BIOS) contains settings that can be manipulated and diagnostic utilities that can be used to monitor the device. The registry is where Windows settings are contained. CMOS refers to a particular style of digital circuitry design. A TPM chip is found in the motherboard, and it is used to hold keys used to encrypt the drive.

49
Q

Which type of network cable is a specific type rated for use in heating and air-conditioning systems?

A. UTP

B. STP

C. Plenum

D. Phlegm

A

C. Plenum

Plenum cable is a specific type of cable that is rated for use in plenum spaces. Plenum spaces are areas in a building used for heating and air-conditioning systems. UTP cable is twisted pair with no shielding. STP cable is twisted pair with shielding. Phlegm is not a term used when discussing cable types.

50
Q

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

A. ISA

B. PCI

C. PCI-X

D. PCIe

A

D. PCIe

The PCI Express is the most common slot found in today’s computers. PCIe is short for PCI express. ISA is an older slot no longer found on devices. PCI_X stands for PCI extended, another type of PCI slot. PCI is the predecessor to the PCIe.

1920 Computer Hardware 220-1001 (24 decks)

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