人生には様々な選択があります。選択は必ずしも絶対な幸福をもたらさないかもしれませんが、あなたに変化のチャンスを与えます。Pass4TestのCompTIAのCD0-001「CompTIA CDIA+ Certification Exam」試験トレーニング資料はIT職員としてのあなたがIT試験に受かる不可欠なトレーニング資料です。Pass4TestのCompTIAのCD0-001試験トレーニング資料はカバー率が高くて、更新のスピードも速くて、完全なトレーニング資料ですから、Pass4Test を手に入れたら、全てのIT認証が恐くなくなります。
Pass4TestのCompTIAのJK0-U31試験トレーニング資料が受験生の皆様の評判を取ったのはもう最近のことではないです。これはPass4TestのCompTIAのJK0-U31試験トレーニング資料は確かに信頼できて、受験生の皆様が首尾よく試験に合格することに助けを差し上げられることが証明されました。 Pass4TestのCompTIAのJK0-U31試験トレーニング資料がベストセラーになって、他のサイトをずっと先んじて皆様の認可を取りましたから、好評は言うまでもないです。 CompTIAのJK0-U31認定試験を受けたら、速くPass4Testというサイトをクリックしてください。あなたがずっとほしいものを手に入れることができますから。最もプロな人々が注目しているIT専門家になりたかったら、後悔しないように速くショッピングカートを入れましょう。
試験科目：「CompTIA CDIA+ Certification Exam」
問題と解答：全255問 CD0-001 勉強の資料
試験科目：「CompTIA E2C Strata IT Technology Exam」
問題と解答：全276問 JK0-U31 受験記対策
Pass4Testの専門家チームがCompTIAのCD0-001認証試験に対して最新の短期有効なトレーニングプログラムを研究しました。CompTIAのCD0-001「CompTIA CDIA+ Certification Exam」認証試験に参加者に対して30時間ぐらいの短期の育成訓練でらくらくに勉強しているうちに多くの知識を身につけられます。
NO.1 Which of the following is an international standard for energy efficient consumer products?
A. Energy Star rating
B. Standby mode
C. Trusted Computer System Evaluation Criteria (TCSEC)
D. Advanced Configuration and Power Interface (ACPI)
CompTIA 割引 JK0-U31 受験記 JK0-U31 参考書 JK0-U31 認定 JK0-U31 認証試験
Energy Star rating is an international standard for energy efficient consumer products. The Energy
Star rating is an international standard for energy efficient consumer products. Devices carrying
the Energy Star logo are products, such as computer devices, peripherals, kitchen appliances, etc.
These products generally use 20% to 30% lesser energy than required by the federal standards. The
Energy Star program was created by the 'United
States Environmental Protection Agency' (US EPA) as an attempt to reduce energy consumption and
greenhouse gas emission by power plants. The program has helped in spreading the use of LED
traffic lights, efficient fluorescent lighting, and power management systems for office equipments.
Answer option C is incorrect. Trusted Computer System Evaluation Criteria (TCSEC), frequently
referred to as the Orange Book, is the centerpiece of the DoD Rainbow Series publications. It is a
United States Government Department of Defense (DoD) standard that sets basic requirements for
assessing the effectiveness of computer security controls built into a computer system. TCSEC was
used to evaluate, classify and select computer systems being considered for the processing, storage
and retrieval of sensitive or classified information.
It was replaced with the development of the Common Criteria international standard originally
published in 2005. Answer option B is incorrect. The standby mode is a power saving feature for
computers. In this mode, a computer does not shut down completely. The computer goes to low
power state and, as a result, it consumes less power. When the computer resumes from the standby
mode, full power is restored to its devices. During the standby mode, if the power supply is
disconnected or interrupted, data might be lost. The standby mode is available automatically on
ACPI-enabled or APM-enabled computers. Users do not need to enable this mode manually. This
mode is not available in non-ACPI and non-APM based computers. Answer option D is incorrect. The
Advanced Configuration and Power Interface (ACPI) is a power- management specification
developed by Intel, Microsoft, and Toshiba. It enables an operating system to control the amount of
power supplied to each device attached to a computer by turning off peripheral devices when they
are not in use. It defines power management on a wide range of mobile,
desktop, and server computers and peripherals. It also enables manuurers to produce computers
that automatically power up as soon as a user touches the keyboard.
NO.2 Which of the following storage device uses SRAM or DRAM?
A. USB flash drive
B. Solid-state drive (SSD)
C. Blu-ray Disc
D. CD drive
CompTIA 教材 JK0-U31 JK0-U31 問題集
A solid-state drive (SSD) is a data storage device that uses solid-state memory to store persistent
data. An SSD emulates a hard disk drive interface, thus easily replacing it in most applications. It is
also known as solid-state hard disk drive. SSDs have no moving parts; hence, they are less fragile
and silent than hard disks. As there are no mechanical delays, SSDs usually enjoy low access time
and latency. An SSD using SRAM or DRAM (instead of flash memory) is often called a RAM-drive,
which should not be confused with a RAM disk. Answer option C is incorrect. Blu-ray Disc, also
known as Blu-ray or BD, is an optical disc storage medium. It is designed to supersede the standard
DVD format for storing high-definition video, PlayStation 3 games, and other data, with up to 25 GB
per single layered, and 50 GB per dual layered disc. Blu-ray Disc was developed by the Blu-ray Disc
Association, a group representing makers of consumer electronics, computer hardware, and motion
pictures. The disc has the same physical dimensions as standard DVDs and CDs. It is called Blu-ray
Disc because of the blue-violet laser which is used to read the disc. Blu-ray uses a shorter
wavelength, a 405 nm blue-violet laser, and allows for almost six times more data storage than on a
DVD. Answer option D is incorrect. CD drive is used for read/write operations on CDs. The CD drives
that are capable of performing write operations on CDs are also known as CD burners.
However, most of the CD drives on computers have read only capability. CD drives with read-only
capability are also known as CD-ROM (Compact Disc Read-Only Memory) drives.
A CD drive is installed inside the computer case and can be connected to IDE, SCSI, SATA, or firewire
interface. Answer option A is incorrect. A USB flash
drive consists of flash memory data storage device integrated with a USB (Universal Serial Bus) 1.1
or 2.0 interface.
NO.3 Which of the following programs can collect various types of personal information,
such as Internet surfing habits, and Web sites that the user has visited?
CompTIA 難易度 JK0-U31 問題 JK0-U31 JK0-U31 攻略 JK0-U31 独学
Spyware is a program that takes partial control over a user's computer without user's permission.
Spyware programs can collect various types of personal information, such as Internet surfing habits,
and Web sites that the user has visited. Spyware programs can also interfere with the control of a
user's computer, such as installing additional software, redirecting Web browser activities, accessing
Web sites blindly, etc. Answer option C is incorrect. A honeypot is a term in computer terminology
used for a trap that is set to detect, deflect, or in some manner counteract attempts at unauthorized
use of information systems. Generally it consists of a computer, data, or a network site that appears
to be part of a network, but is actually isolated, and monitored, and which seems to contain
information or a resource of value to attackers. Answer option A is incorrect. The term malware
refers to malicious software, which is a broad class of malicious viruses, including spyware. Malware
is designed to infiltrate or damage a computer without the consent of the owner. Answer option D
is incorrect. A worm is a software program that uses computer networks and security holes to
replicate itself from one computer to another. It usually performs malicious actions, such as using
the resources of computers as well as shutting down computers.
NO.4 Which of the following transmits all ATSC HDTV standards and supports 8-channel digital audio?
CompTIA 認定試験 JK0-U31 認定試験 JK0-U31 JK0-U31 JK0-U31 問題
HDMI stands for High-Definition Multimedia Interface. It is a standard, uncompressed, and all-digital
audio/video interface. HDMI is capable of delivering the highest quality digital video and multi-
channel digital audio on a single cable. It provides an interface between any audio/video sources,
such as a DVD player or a computer and a digital television (DTV) or video monitor. HDMI transmits
all ATSC HDTV standards and supports 8-channel digital audio, with extra bandwidth to
accommodate future enhancements. HDMI has two types of connectors. Type A and Type B.
Type A and Type B connectors use 19 pins and 29 pins, respectively. The Type B connector is
designed for very high-resolution displays that are expected in near future. Answer option B is
incorrect. S-Video, also known as Y/C video, stands for Super-Video. It is a technology for video
transmission. Using this technology, the video is transmitted into two separate signals.
One is used for color, and the other for brightness. Sometimes S-Video signals are considered as a
type of component video signal. However, its quality is inferior to other complex component video
schemes such as RGB. This technology produces sharper images than those produced by composite
video, which carries the entire set of signals in a single line. For using S- Video, the device sending
the signal must support S-Video output and the device receiving the signal needs to have an
S-Video input jack. Answer option A is incorrect. DVI stands for Digital Visual Interface. It is a
standard for high speed, high resolution digital display invented by Digital Display Working Group
(DDWG). DVI accommodates analog and digital interfaces with a single connector. New video cards
have DVI as well as VGA ports built into them. Most of LCD monitors come with a 15-pin VGA
connection cable, even if they are capable of handling digital signals coming from DVI connections.
However, some monitors come with both types of cables. DVI has three main categories of
connectors. They are. DVI-A, DVI-D, and DVI-I. DVI-A is an analog-only
connector, DVI-D is a digital-only connector, and DVI-I is an analog/digital connector. DVI-D and DVI-I
connectors are of two types. single link and dual link. DVI supports UXGA and HDTV with a single set
of links. Higher resolutions such as 1920 x 1080, 2048 x 1536, or more can be supported with dual
links. Answer option C is incorrect. A VGA or SVGA connector is a 15-pin, three rows, female
connector, on the back of a PC used for connecting monitors. Reference:
NO.5 You are implementing wireless access at a defense contractor.
Specifications say, you must implement the AES Encryption algorithm. Which encryption standard
should you choose?
D. WPA 2
CompTIA 問題集 JK0-U31 JK0-U31 認証試験 JK0-U31 関節
WPA 2 (Wi Fi Protected Access 2) uses AES encryption, which is endorsed by the National Security
Administration. What is AES? The Advanced Encryption Standard (AES) is an encryption standard
adopted by the U.S. government. The standard comprises three block ciphers, AES-128, AES-192,
and AES-256. Each AES cipher has a 128-bit block size, with key sizes of 128, 192, and 256 bits,
respectively. The AES ciphers have been analyzed extensively and are now used worldwide, as was
the case with its predecessor, the Data Encryption Standard (DES). AES was announced by National
Institute of Standards and Technology (NIST) as U.S. FIPS PUB 197 (FIPS 197) on November 26, 2001
after a 5-year standardization process in which fifteen competing designs were presented and
evaluated before Rijndael was selected as the most suitable. It became effective as a standard on
May 26, 2002. As of 2009, AES is one of the most popular algorithms used in symmetric key
cryptography. It is available in many different encryption packages. AES is the first publicly
accessible and open cipher approved by the NSA for top secret information. Answer optiond A and
B are incorrect. WEP and WPA both use the RC-4 Stream cipher. What is RC4? RC4 is a stream cipher
designed by Ron Rivest.
It is used in many applications, including Transport Layer Security (TLS), Wired Equivalent Privacy
(WEP), Wi-Fi Protected Access (WPA), etc. RC4 is fast and simple. However, it has weaknesses that
argue against its use in new systems. It is especially vulnerable when the beginning of the output
key stream is not discarded, nonrandom or related keys are used, or a single key stream is used
twice. Some ways of using RC4 can lead to very insecure cryptosystems such as WEP . Answer option
C is incorrect. Temporal Key Integrity Protocol is a substitute for WPA, meant to replace WEP
without requiring that hardware be replaced.
NO.6 Which of the following statements about a riser card is true?
A. It is used to connect a computer in a network.
B. It is used to connect extra microprocessors.
C. It provides extra memory for expansion cards.
D. It is used to extend slots for expansion cards.
CompTIA 受験記 JK0-U31 日記 JK0-U31 クラムメディア JK0-U31 過去問
Riser card is a circuit board that is used to extend slots for expansion cards and provides the ability
to connect additional expansion
cards to the computer. These cards are used with LPX motherboards.
With the introduction of ATX motherboards, riser cards are rarely used. In ATX motherboards, the
connect directly to the computer motherboard instead of using riser cards. What is
LPX? LPX is a motherboard form or that is used in some desktop computers. In
LPX motherboards, expansion cards are inserted into a riser card that contains several
slots. Unlike other common form ors such as AT and ATX, the expansion cards in LPX
are not vertical, but parallel to the motherboard. The LPX form or is designed for
smaller cases, and usually it is used for connecting two or three expansion cards.
NO.7 Which of the following can be used to accomplish authentication? Each correct answer
represents a complete solution. Choose all that apply.
CompTIA JK0-U31 フリーク JK0-U31 教本 JK0-U31 合格点 JK0-U31
The following can be used to accomplish authentication.
3.Token A password is a secret word or string of characters that is used for authentication, to prove
identity, or gain access to a resource. What is authentication? Authentication is a process of
verifying the identity of a person, network host, or system process. The authentication process
compares the provided credentials with the credentials stored in the database of an authentication
server. What is biometrics?Biometrics is a method of authentication that uses physical
characteristics, such as fingerprints, scars, retinal patterns, and other forms of biophysical qualities
to identify a user. Nowadays, the usage of biometric devices such as hand scanners and retinal
scanners is becoming more common in the business environment. A token may be a physical device
or software token that an authorized user of computer services is given to ease authentication.
Answer option B is incorrect. Encryption can be used to accomplish security and not authentication.
NO.8 Which of the following devices is used for accessing the data on Secure Digital (SD)
card, MMC card, and CompactFlash (CF)?
A. E-book reader
B. Memory card reader
C. Smart card reader
D. Barcode reader
CompTIA 練習問題 JK0-U31 クラムメディア JK0-U31 参考書 JK0-U31 JK0-U31 関節
A memory card reader is a device, typically having a USB interface, for accessing the data on a
memory card such as a CompactFlash (CF), Secure Digital (SD) or MultiMediaCard (MMC). Answer
option C is incorrect. Smart card readers are used to read smart cards. It is used as a
communications medium between the smart card and a host. Answer option D is
incorrect. A barcode reader (or barcode scanner) is an electronic device for reading printed
barcodes. Answer option A is incorrect. There is no such device as e-book reader.