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Quiz sobre ICT, criado por No Name em 04-06-2019.
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Quiz por No Name, atualizado more than 1 year ago
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Criado por No Name mais de 5 anos atrás
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Resumo de Recurso

Questão 1

Questão
1. What is the number one concern about cloud computing?
Responda
  • • Too expensive
  • • Security concerns
  • • Too many platforms
  • • Accessibility

Questão 2

Questão
2. Google Docs is a type of cloud computing
Responda
  • True
  • False

Questão 3

Questão
3. Which one of these is not a cloud computing pricing model
Responda
  • • Pay Per Use
  • • Subscription
  • • Ladder
  • • Perpetual License

Questão 4

Questão
4. Which of these is not a major type of cloud computing usage
Responda
  • • Hardware as a service
  • • Platform as a service
  • • Software as a service
  • • Infrastructure as a service

Questão 5

Questão
5. An Internet connection is necessary for cloud computing interaction
Responda
  • True
  • False

Questão 6

Questão
6. “Cloud” in cloud computing represents what
Responda
  • Wireless
  • Hard drives
  • People
  • Internet

Questão 7

Questão
7. Which of these should a company consider before implementing cloud computing technology. I: Employee satisfaction, II: Potential cost reduction, III: Information sensitivity
Responda
  • • Only I
  • • Only II
  • • Only III
  • • I, II, and III

Questão 8

Questão
8. What exactly is cloud computing
Responda
  • • A way to organize desktop computers
  • • Lightweight software that takes up little space on a hard drive
  • • Computing resources that can be accessed on demand, like electricity from a utility
  • • The World Wide Web

Questão 9

Questão
9. What widely used service is built on cloud-computing technology? I: Twitter, II: Skype, III: Gmail, IV: YouTube.
Responda
  • • Only I
  • • Only II
  • • Only III and I
  • • I, II, III and IV

Questão 10

Questão
10. Cloud computing embraces many concepts that were previously touted as the next big thing in information technology. Which of these is not an antecedent(предшествующее) of the cloud?
Responda
  • • Utility computing
  • • Remote hosted services
  • • Grid computing
  • • Desktop computing

Questão 11

Questão
11. What does SQL stand for
Responda
  • • Structured Query Language
  • • Strong Question Language
  • • Structured Question Language
  • • Structured Querty Language

Questão 12

Questão
12. Which SQL statement is used to extract data from a database?
Responda
  • • Select
  • • GET
  • • OPEN
  • • Extract

Questão 13

Questão
13. Computerized representations of models and attributes of real or simulated entities are?
Responda
  • • Data
  • • Knowledge
  • • Information
  • • Database

Questão 14

Questão
14. Representation of the results of a computational process, such as statistical analysis, or the transcripts of some meanings assigned by human beings is
Responda
  • • Data
  • • Knowledge
  • • Information
  • • Database

Questão 15

Questão
15. Representation of the results of a computer-simulated cognitive process, such as perception, learning, association, and reasoning is
Responda
  • • Data
  • • Knowledge
  • • Information
  • • Database

Questão 16

Questão
16. Continuous representation, similar to the actual information it represents is
Responda
  • • Analog data
  • • Digital data
  • • Continuous data
  • • Discrete data

Questão 17

Questão
17. A discrete representation, breaking the information up into separate(discrete) elements is
Responda
  • • Analog data
  • • Digital data
  • • Continuous data
  • • Discrete data

Questão 18

Questão
18. Two bits can represent
Responda
  • • Four things
  • • Two things
  • • Eight things
  • • Ten things

Questão 19

Questão
19. The extended version of the ASCII character set is not enough for international use
Responda
  • • Unicode
  • • Barcode
  • • EBCDIC
  • • Binary code

Questão 20

Questão
20. The Unicode character set uses _________ per character
Responda
  • • 16 bits
  • • 8 bits
  • • 4 bits
  • • 32 bits

Questão 21

Questão
21. The first 256 characters in the Unicode character set correspond exactly to the extended ASCII character set
Responda
  • True
  • False

Questão 22

Questão
22. List the levels of computer systems from top to down
Responda
  • • users, application software, operating system software, and the hardware system
  • • application software, operating system software, users, and the hardware system
  • • application software, users,operating system software, and the hardware system
  • • hardware system, operating system software, application software, and users

Questão 23

Questão
23. List the levels of computer systems from bottom to up
Responda
  • • users, application software, operating system software, and the hardware system
  • • application software, operating system software, users, and the hardware system
  • • application software, users,operating system software, and the hardware system
  • • hardware system, operating system software, application software, and users

Questão 24

Questão
24. Which software refers to application software?
Responda
  • • Microsoft Word
  • • Microsoft Windows
  • • Unix
  • • Mac OS

Questão 25

Questão
25. Which software refers to application software?
Responda
  • • Internet Explorer
  • • Microsoft Windows
  • • Unix
  • • Mac OS

Questão 26

Questão
26. Which software refers to application software?
Responda
  • • Macromedia Dreamweaver
  • • Microsoft Windows
  • • Unix
  • • Mac OS

Questão 27

Questão
27. Which software refers to application software?
Responda
  • • Adobe Acrobat Reader
  • • Microsoft Windows
  • • Unix
  • • Mac OS

Questão 28

Questão
28. Which software refers to system software?
Responda
  • • Macromedia Dreamweaver
  • • Microsoft word
  • • Internet Explorer
  • • Microsoft Windows

Questão 29

Questão
29. Which software refers to system software?
Responda
  • • Macromedia Dreamweaver
  • • Microsoft word
  • • Internet Explorer
  • • Unix

Questão 30

Questão
30. Which software refers to system software?
Responda
  • • Macromedia Dreamweaver
  • • Microsoft word
  • • Internet Explorer
  • • Mac OS

Questão 31

Questão
31. What is the master controller for all activities that take place within a computer
Responda
  • • Operating System
  • • Application Software
  • • DBMS
  • • Word processor

Questão 32

Questão
32. What does send data from a computer over a network, and collects incoming data sent by other computers
Responda
  • • A network interface card (NIC)
  • • A modem
  • • Phone line or cable
  • • Internet service provider

Questão 33

Questão
33. What is a device that enables data from a computer to be transmitted via phone lines or television cable lines to reach other computers on the Internet?
Responda
  • • A network interface card (NIC)
  • • A modem
  • • Phone line or cable
  • • Internet service provider

Questão 34

Questão
34. What was the first computer prototype used vacuum tubes?
Responda
  • • ENIAC
  • • Analytical Engine
  • • Abacus
  • • Hollerith Tabulating Machine

Questão 35

Questão
35. What is the main component that executes instructions stored in the main memory?
Responda
  • • Microprocessor
  • • Main memory
  • • Storage device
  • • Peripheral

Questão 36

Questão
36. What does store instructions to be executed by the microprocessor?
Responda
  • • Microprocessor
  • • Main memory
  • • Storage device
  • • Peripheral

Questão 37

Questão
37. What do store data permanently even when the computer is turned off?
Responda
  • • Microprocessor
  • • Main memory
  • • Storage device
  • • Peripheral

Questão 38

Questão
38. What enable data input and output?
Responda
  • • Microprocessor
  • • Main memory
  • • Storage device
  • • Peripheral

Questão 39

Questão
39. What acts as the traffic cop controlling the flow of data and coordinating interactions among components in the system?
Responda
  • • Microprocessor
  • • Main memory
  • • Storage device
  • • Chipset

Questão 40

Questão
40. What does provide sockets for microprocessor and memory chips, slots for circuit boards, and the circuitry that enable electrical signals to travel from component to component?
Responda
  • • Motherboard
  • • Power supply
  • • Microprocessor
  • • Chipset

Questão 41

Questão
41. What does provide electrical power to the computer system?
Responda
  • • Motherboard
  • • Power supply
  • • Microprocessor
  • • Chipset

Questão 42

Questão
42. What does process instructions stored in main memory?
Responda
  • • Motherboard
  • • Power supply
  • • Microprocessor
  • • Chipset

Questão 43

Questão
43. What does serve as a socket on the motherboard into which an expansion card maybe inserted?
Responda
  • • Expansion slot
  • • Motherboard
  • • Power supply
  • • Microprocessor

Questão 44

Questão
44. What does enable a computer to control peripheral devices such as the monitor and the microphone?
Responda
  • • Expansion card
  • • Motherboard
  • • Power supply
  • • Microprocessor

Questão 45

Questão
45. What does control data flow among components?
Responda
  • • Chipset
  • • Motherboard
  • • Power supply
  • • Microprocessor

Questão 46

Questão
46. What does transfer data from storage devices to the motherboard?
Responda
  • • IDE (Integrated Drive Electronics) cable
  • • Motherboard
  • • Power supply
  • • Microprocessor

Questão 47

Questão
47. What does store data permanently (even after the computer is turned off)?
Responda
  • • Disk drives
  • • Motherboard
  • • Power supply
  • • Microprocessor

Questão 48

Questão
48. What step of the fetch-execute cycle enables the control unit of the CPU to decode the instruction and direct the necessary data to be moved from memory to the ALU?
Responda
  • • Interpret
  • • Fetch
  • • Execute
  • • Store

Questão 49

Questão
49. What science studies how to refine the design of products to optimize them for human use?
Responda
  • • Ergonomics
  • • HCI
  • • Economics
  • • ICT

Questão 50

Questão
50. What DOS command is used to change the working directory?
Responda
  • • сd
  • • md
  • • rd
  • • ren

Questão 51

Questão
51. What DOS command is used to make a new directory?
Responda
  • • cd
  • • md
  • • rd
  • • ren

Questão 52

Questão
52. What DOS command is used to remove an existing empty directory?
Responda
  • • cd
  • • md
  • • rd
  • • ren

Questão 53

Questão
53. What DOS command is used to rename a file within a directory?
Responda
  • • cd
  • • md
  • • rd
  • • ren

Questão 54

Questão
54. The BIOS initiates the POST (Power-On Self Test) sequence
Responda
  • • True
  • • False

Questão 55

Questão
55. The BIOS enables the video card
Responda
  • • True
  • • False

Questão 56

Questão
56. The BIOS counts and tests memory
Responda
  • • True
  • • False

Questão 57

Questão
57. The BIOS checks for expansion cards and adapters and initializes them
Responda
  • • True
  • • False

Questão 58

Questão
58. The BIOS follows a search order to find the Master Boot Record
Responda
  • • True
  • • False

Questão 59

Questão
59. Interrupt Handler saves contents of registers before it saves the register for its own purposes
Responda
  • • True
  • • False

Questão 60

Questão
60. Interrupts can nest infinitely (гнездиться бесконечно)
Responda
  • • True
  • • False

Questão 61

Questão
61. Interrupt Handler accepts the byte of incoming data
Responda
  • • True
  • • False

Questão 62

Questão
62. Interrupt Handler places the byte in a storage area
Responda
  • • True
  • • False

Questão 63

Questão
63. Interrupt handler cannot be interrupted by a higher priority interrupt
Responda
  • • True
  • • False

Questão 64

Questão
64. Interrupt handler transfers control back to previous task
Responda
  • • True
  • • False

Questão 65

Questão
65. Which of the following are common behaviors of computer viruses? I. Self-replication; II. Infliction of physical damage to the computer's hardware; III Unwarranted file removal
Responda
  • • I and II only
  • • II and III only
  • • I and III only
  • • I, II, and III

Questão 66

Questão
66. Which of the following computer attack methods does not require a hardware or software tool?
Responda
  • • Port scanning
  • • Social engineering
  • • Spoofing
  • • Packet sniffing

Questão 67

Questão
67. What does a packet sniffer do?
Responda
  • • Captures data packets that are transmitted through a network
  • • Renders a computer network unusable
  • • Causes one computer to impersonate another
  • • Converts encrypted passwords to plain text

Questão 68

Questão
68. A computer attack that uses handler computers to control agent computers to attack a target computer is known as a _____ attack.
Responda
  • • Smurf
  • • SYN
  • • network connectivity
  • • distributed denial of service

Questão 69

Questão
69. Attacking a computer by sending it an excessive number of email messages is known as
Responda
  • • Smurfing
  • • Spoofing
  • • Spamming
  • • Pinging

Questão 70

Questão
70. With respect to security on the Internet, what is the purpose of digital signatures?
Responda
  • • To verify the identity of a message sender
  • • To request receipts for all sent messages
  • • To post anonymous messages to bulletin boards
  • • To encrypt mail messages

Questão 71

Questão
71. One of the most common applications of encryption is transmitting data securely over the Web is ______
Responda
  • • the Secure Socket Layer (SSL)
  • • a Trojan horse
  • • e-mail
  • • a simple substitution code

Questão 72

Questão
72. Which encryption method uses a pair of digital keys?
Responda
  • • Active-X
  • • SSL
  • • Public key encryption
  • • S-HTTP

Questão 73

Questão
73. Which of the following reasons is (are) valid for why "IITU" is a bad password? I. It is a word from the dictionary; II It does not contain numbers and symbols; III. It is the name of an institution
Responda
  • • I and II only
  • • II and III
  • • I, II, and III
  • • I and III only

Questão 74

Questão
74. Embedding different types of data, such as sound and graphics, within Internet electronic mail requires which of the following formats to be used for encoding the data?
Responda
  • • TCP/IP
  • • GIF
  • • MIME
  • • Encryption

Questão 75

Questão
75. ISPs can be accessed by which of the following ways? I. Telephone lines II. Cable television systems III. Personal satellite dishes
Responda
  • • I only
  • • I and II only
  • • I, II, and III
  • • II only

Questão 76

Questão
76. The numbers in IP addresses are separated by
Responda
  • • points
  • • periods
  • • colons
  • • commas

Questão 77

Questão
77. What knits the Internet together and allows data to travel smoothly over the communications links provided by NSPs worldwide?
Responda
  • • FTP
  • • TCP/IP
  • • HTTP
  • • URL

Questão 78

Questão
78. What networks are useful in environments where wiring is difficult to install?
Responda
  • • Twisted pair
  • • Coaxial
  • • Wirefree
  • • Wireless

Questão 79

Questão
79. What top-level domain belongs to computers in the category of commercial businesses?
Responda
  • • bus
  • • com
  • • org
  • • bsn

Questão 80

Questão
80. An IP address is a set of four numbers between 0 and
Responda
  • • 128
  • • 24
  • • 16
  • • 255

Questão 81

Questão
81. What top-level domain belongs to computers in the category of networks and ISPs?
Responda
  • • adm
  • • int
  • • net
  • • html

Questão 82

Questão
82. What top-level domain belongs to computers in the category of professional and nonprofit organizations?
Responda
  • • com
  • • npo
  • • org
  • • edu

Questão 83

Questão
83. Which of the following is (are) true about thick and thin clients in a client-server system? I. Thin clients perform relatively little work. II.A Web browser is an example of a thick client. III.A handheld computer is a typical example of a thin client.
Responda
  • • I and III only
  • • I, II, and III
  • • III only
  • • I only

Questão 84

Questão
84. When you send an email to someone, it is sent to
Responda
  • • the sender's email server
  • • the sender's email client
  • • the recipient's computer
  • • the recipient's email server

Questão 85

Questão
85. Using a(n) _____ protocol, the sender and the receiver are synchronized by a signal called a clock
Responda
  • • synchronous
  • • asynchronous
  • • analog
  • • block

Questão 86

Questão
86. The bandwidth (пропускная способность) of a(n) _____ signal is usually measured in bits per second.
Responda
  • • video
  • • digital
  • • satellite
  • • analog

Questão 87

Questão
87. What type of cable is typically used to carry cable television signals because its high capacity allows it to carry signals for more than 100 television channels simultaneously?
Responda
  • • BNC
  • • STP
  • • UTP
  • • Coaxial

Questão 88

Questão
88. A communications _____ is a physical path or frequency for a signal transmission.
Responda
  • • band
  • • channel
  • • protocol
  • • bridge

Questão 89

Questão
89. Which of the following terms represents the transmission capacity of a communications channel?
Responda
  • • Indexing
  • • Frequency
  • • Bandwidth
  • • Resolution

Questão 90

Questão
90. Which of the following are commonly used network topologies? I.Star II. Ring III.Modems
Responda
  • • I and II only
  • • III only
  • • II and III only
  • • I and III only

Questão 91

Questão
91. When two devices communicate, they must agree on protocols for I.starting and ending a transmission II.recognizing transmission errors III.determining the rate of data transmission
Responda
  • • II and III only
  • • I and II only
  • • I, II, and III
  • • I and III only

Questão 92

Questão
92. Modems transfer data between computers by converting between
Responda
  • • analog and digital
  • • Ethernet and digital
  • • video and sound
  • • analog and Ethernet

Questão 93

Questão
93. Which of the following are potential communications links? I. Telephone wiring II. Fiber-optic cable III. Satellite
Responda
  • • I and II only
  • • II only
  • • I, II, and III
  • • III only

Questão 94

Questão
94. What kind of waves provides wireless transmission for mobile communications, such as cellular telephones, and for stationary communications where it is difficult or impossible to install cabling, such as in remote, geographically rugged regions?
Responda
  • • Infrared
  • • Radio
  • • UTP
  • • Line-of-sight

Questão 95

Questão
95. Which of the following are protocols associated with Internet email? I.SMTP II.POP III. FTP
Responda
  • • I and III only
  • • I and II only
  • • I, II, and III
  • • II and III only

Questão 96

Questão
96. Which of the following services may be provided by an ISP? I. A temporary IP address II. An account on the ISP's email server III. Web hosting of the customer's Web page
Responda
  • • II and III only
  • • I, II, and III
  • • I and II only
  • • I and III only

Questão 97

Questão
97. What is a backbone provider (also known as a Network Service Provider)?
Responda
  • • A group of small providers that work together to provide Internet access
  • • Any company that provides Web-based services
  • • A provider of national and international network links for the Internet
  • • The largest provider of Internet access within a particular region

Questão 98

Questão
98. With respect to the Internet, routers are used to connect
Responda
  • • a computer and a modem
  • • a computer to the Internet
  • • any two computers
  • • different networks of computers

Questão 99

Questão
99. With respect to the Internet, companies need to register a unique domain name when
Responda
  • • buying a new modem
  • • establishing an electronic commerce Web site
  • • buying a new computer
  • • connecting a new computer to the Internet

Questão 100

Questão
100. Which of the following are tasks performed by a Web browser? I. Sending a request for a specific file to a server II. Formatting and displaying a file received from a server III. Sending additional requests to the server to retrieve any graphics elements such as icons or images for a requested file
Responda
  • • I, II, and III
  • • I and III only
  • • II and III only
  • • I and II only

Questão 101

Questão
101. What is the protocol used to transfer Web pages?
Responda
  • • html
  • • http
  • • udp
  • • ftp

Questão 102

Questão
102. What is the name of the Internet protocol used to make sure messages are reliably transmitted and received by the destination computer?
Responda
  • • TCP
  • • ISP
  • • IP
  • • POP

Questão 103

Questão
103. The World Wide Web is
Responda
  • • the same as the Internet
  • • a software package
  • • a client/server application program used to access the Internet
  • • a collection of Web servers throughout the world

Questão 104

Questão
104. When a fully explicit URL such as http://www.iitu.kz is provided to an Internet browser, "http" refers to the name of the
Responda
  • • domain where the Web server resides
  • • language in which the page is written
  • • Web server containing the Web page
  • • protocol used to perform the operation

Questão 105

Questão
105. IP host addresses on the Internet are composed of which of the following?
Responda
  • • A 24-bit number
  • • A single decimal number ranging from 0 to 255
  • • Four decimal numbers ranging from 0 to 255
  • • Any number of lowercase alphanumeric characters

Questão 106

Questão
106. After gaining access to a computer system, hackers will typically do which of the following? I. Set up control for further attacks II.Take, alter, or delete data III. Use the computer system resources
Responda
  • • I, II, and III
  • • II and III only
  • • I and II only
  • • II only

Questão 107

Questão
107. Which of the following is (are) true regarding network bandwidth attacks? I.They can be used to launch a denial of service attack. II.They can cause a Web site to become unavailable. III.They work by flooding a network with traffic.
Responda
  • • I and II only
  • • II and III only
  • • I, II, and III
  • • I and III only

Questão 108

Questão
108. Which of the following computer attacks is spoofing?
Responda
  • • Using a program to decrypt passwords
  • • Monitoring a network to intercept data
  • • Using one computer to impersonate another
  • • Accessing an unprotected port on a computer

Questão 109

Questão
109. The method of cracking a password by trying all possible alphanumeric combinations is known as a _____ attack
Responda
  • • port scanning
  • • dictionary
  • • brute force
  • • man-in-the-middle

Questão 110

Questão
110. After loading a word processor document from a floppy, a user's computer begins to show symptoms of being infected by a virus.Which of the following is true concerning this situation?
Responda
  • • The document text could have contained an embedded virus.
  • • The word processing program checks all documents for viruses before using them, so the source the virus was not the document.
  • • A document cannot contain a virus, so the source of the virus was not the word processing document.
  • • The document could have contained a macro that contained a virus.

Questão 111

Questão
111. Which of the following is email spoofing?
Responda
  • • Sending large amounts of unsolicited email
  • • Sending viruses through email
  • • Modifying an email header to fake the email source
  • • Intercepting email by monitoring a network

Questão 112

Questão
112. Which of the following is (are) true regarding a Smurf attack? I.It can use the ping command to perform the attack.II.It allows a hacker to steal data from a computer.III.It uses other computers on a network to attack a single computer
Responda
  • • II and III only
  • • I and III only
  • • I and II only
  • • I, II, and III

Questão 113

Questão
113. Which of the following consequences of executing a virus on a PC is (are) possible? I.Files appear to be missing or deleted from the hard disk. II.Either the PC system board or a disk drive is physically damaged. III.There is low computer memory on disks.
Responda
  • • II and III only
  • • I only
  • • I and III only
  • • I, II, and III

Questão 114

Questão
114. Which of the following is (are) true regarding computer security attacks? I. Hackers can cause home computers to attack other computers. II. Organizations typically experience more computer security breaches from internal personnel than from people external to the organization.
Responda
  • • I only
  • • II only
  • • None
  • • I and II √

Questão 115

Questão
115. Which of the following is (are) true regarding network connectivity attacks? I. A network connectivity attack can be achieved by generating numerous half-open connections to the target computer. II. A network connectivity attack can be achieved by generating excessive amount of traffic on the target network.
Responda
  • • I and II
  • • None
  • • I only
  • • II only

Questão 116

Questão
116. Which of the following can be used to prevent social engineering attacks? I. Verifying identities of people requesting sensitive information II. Using data encryption III. Being aware of computer fraud schemes
Responda
  • • II and III only
  • • I, II, and III
  • • I and III only
  • • III only

Questão 117

Questão
117. Which of the following is (are) true about encryption of data? I.Given the high speed and low cost CPUs available, even the most complex encrypted data is not entirely safe for a long period of time. II.The more bits in the key of the encryption algorithm, the harder it is to break the encryption. III.In public key encryption, the sender and the receiver of encrypted data both use the same key value to encrypt and decrypt the data.
Responda
  • • I and III only
  • • I, II, and III
  • • II and III only
  • • I and II only

Questão 118

Questão
118. How does a receiver of an encrypted message verify that the message originated from the sender?
Responda
  • • The receiver compares the message with the decrypted signature of the sender.
  • • The receiver compares the message hashed with the sender's signature.
  • • The receiver compares the message hashed with the decrypted signature of the sender.
  • • The receiver compares the received message with the sender's signature.

Questão 119

Questão
119. To encrypt a message using public-key encryption scheme, which of the following must be done?
Responda
  • • Encrypt the message using the receiver's private key.
  • • Encrypt the message using the sender's private key.
  • • Encrypt the message using the receiver's public key.
  • • Encrypt the message using the sender's public key.

Questão 120

Questão
120. Which of the following must be included on a digital certificate? I. The name of the entity and the expiration date II. The number of times the certificate has been viewed III. The digital signature of the certificate authority
Responda
  • • II and III only
  • • I, and III
  • • I, II, and III
  • • I and II only

Questão 121

Questão
121. Encryption is used to
Responda
  • • save storage space
  • • store data files in a vault
  • • protect privacy by encoding data
  • • archive system files

Questão 122

Questão
122. Of the following processes, which best characterizes the authentication process?
Responda
  • • Logging into a secure site
  • • Verifying that software that is in use is not a pirated copy
  • • Authorizing use of some resource by a particular user
  • • Establishing a user identity

Questão 123

Questão
123. Which of the following is (are) true regarding computer network intrusion detection systems? I.They compare traffic against a database of known attack signatures.II. They can generate false alarms.
Responda
  • • I only
  • • None
  • • II only
  • • I and II

Questão 124

Questão
124. The security of data can be violated through which of the following? I.Malicious acts II.User errors III.Disasters
Responda
  • • II and III only
  • • I, II, and III
  • • I only
  • • I and III only

Questão 125

Questão
125. Which of the following is (are) true regarding computer security? I.Applying all available security measures may negatively impact system usability. II.Most intrusions result from exploitation of known vulnerabilities that remain unpatched.
Responda
  • • None
  • • I and II
  • • II only
  • • I only

Questão 126

Questão
126. Good computer security practices include which of the following? I.Never shop online. II.Remove excess RAM from computers. III.Avoid sending email at night.
Responda
  • • II and III only
  • • I and II only
  • • I, II, and III
  • • None

Questão 127

Questão
127. Examples of network monitoring tools include which of the following? I.Packet sniffers II.Antivirus software III.Security patches
Responda
  • • I only
  • • I and III only
  • • II only
  • • I, II, and III

Questão 128

Questão
128. Which of the following is (are) true of anti-virus software? I.Typically, it scans both files and memory. II.It is ineffective unless it is updated frequently. III.It protects against network bandwidth attacks.
Responda
  • • II only
  • • I and II only
  • • I, II, and III
  • • I and III only

Questão 129

Questão
129. Which of the following is (are) important to ensuring computer security? I.Keep applications and operating system updated with the latest security patches. II.Replace motherboard batteries regularly. III.Use firewalls
Responda
  • • III only
  • • I, II, and III
  • • I and III only
  • • II and III only

Questão 130

Questão
130. Which of the following statements is (are) true about smart cards? I.They are vulnerable to Internet attacks. II.They can encrypt data.
Responda
  • • II only
  • • None
  • • I and II
  • • I only

Questão 131

Questão
131. Which of the following is correct with respect to customers providing highly personal information across the Internet through electronic commerce transactions?
Responda
  • 131. Which of the following is correct with respect to customers providing highly personal information across the Internet through electronic commerce transactions?
  • • Transactions are relatively secure between the consumer and a company's Web site if the data is encrypted.
  • • It is impossible for anybody to see the transaction on the Internet except for the intended Web site conducting the transaction.
  • • If a transaction is encrypted, any unauthorized parties intercepting the transaction will take ten or more years to decrypt the information.

Questão 132

Questão
132. Which of the following comparisons between public-key encryption schemes and private-key encryption schemes is true?
Responda
  • • It takes longer to transmit encrypted data using private-key encryption schemes than public-key encryption schemes.
  • • It is easier to decrypt data using private-key encryption schemes than public-key encryption schemes.
  • • Private-key encryption schemes are more secure than public-key encryption schemes.
  • • Public-key encryption schemes involve more computations than private-key encryption schemes.

Questão 133

Questão
133. Which of the following is true about private-key encryption schemes?
Responda
  • • The sender and the receiver have different private keys.
  • • The sender and the receiver use the same private key.
  • • The sender and the receiver have two private keys, one for encryption and one for decryption.
  • • The sender must notify the receiver before sending a message.

Questão 134

Questão
134. Which of the following is (are) true regarding network monitoring tools? I. They should only be installed in a single location on a network. II. Monitoring only needs to be done when a problem is suspected.
Responda
  • • None
  • • I and II
  • • II only
  • • I only

Questão 135

Questão
135. Anti-virus software with updated virus definitions typically protects against which of the following? I. Worms II. Trojan horse programs
Responda
  • • I only
  • • None
  • • I and II
  • • II only

Questão 136

Questão
136. Which of the following path formats can be used to specify the value of the href attribute of the<xmp><a></xmp> tag? I. An absolute path II. A relative path
Responda
  • • I and II
  • • I only
  • • None
  • • II only

Questão 137

Questão
137. ANSI stands for
Responda
  • • All National Standard of Information
  • • American National System Information
  • • American National Standards Institute √
  • • All National Standards Institute

Questão 138

Questão
138. _________ receives input from the user and processes this input through the computer to produce output.
Responda
  • • Hardware
  • • Software
  • • Computer system
  • • Network system

Questão 139

Questão
139. ________________is the delay between the time when the memory device receives an address and the time when the first bit of data is available from the memory device.
Responda
  • • Latency
  • • RAM
  • • Capacity
  • • DRAM

Questão 140

Questão
140. Who designed a general-purpose calculating device, the Analytical Engine?
Responda
  • • Augusta Ada King
  • • Gordon Moore
  • • Jack Kilby
  • • Charles Babbage

Questão 141

Questão
141. PCI stands for
Responda
  • • Peripheral Component Interconnect
  • • Peripheral Computer Internet
  • • Peripheral Component Interaction
  • • Peripheral Computer Interaction

Questão 142

Questão
141.1. Convert the binary number 01011 to decimal
Responda
  • • 11
  • • 110
  • • 1011
  • • 10

Questão 143

Questão
142. Convert the decimal number 63 to binary
Responda
  • • 111111
  • • 110111
  • • 0110111
  • • 11011111

Questão 144

Questão
143. Convert the hexadecimal text D9 to binary
Responda
  • • 1101 1001
  • • 1010 0111
  • • 1110 0100
  • • 1110 1101

Questão 145

Questão
144. Convert this binary number 010101 to decimal
Responda
  • • 21
  • • 20
  • • 25
  • • 22

Questão 146

Questão
145. Convert this hexadecimal number 8F to decimal
Responda
  • • 143
  • • 142
  • • 141
  • • 140

Questão 147

Questão
146. Convert this decimal number 125 to binary
Responda
  • • 1111101
  • • 1101011
  • • 1111011
  • • 1101001

Questão 148

Questão
147. Convert this hexadecimal number A3 to binary
Responda
  • • 1010 0011
  • • 0110 1111
  • • 0110 1100
  • • 0111 1111

Questão 149

Questão
148. Convert this decimal number 117 to hexadecimal
Responda
  • • 75
  • • 0111 1111
  • • 85
  • • 0110 1111

Questão 150

Questão
150. Convert this binary number 10001001 to hexadecimal
Responda
  • • 89h
  • • 99a
  • • 0111 0111
  • • 89

Questão 151

Questão
151. Match the different types of buses
Responda
  • Front side bus Bus on the motherboard that transfers data between the CPU and the chipset
  • PCI Predominant bus for newer systems
  • AGP Very fast, running at 66 MHz with a 32-bit word size, and transferring 266 MBps
  • IDE bus Transfers data between storage devices and the chipset
  • USB Not rated with a MHz speed; rated by peak transfer rate
  • FireWire High transfer rate designed for high-speed external peripherals such as DVD-ROM and hard disk drives

Questão 152

Questão
152. This means that each layer needs only a limited amount of knowledge to do its job
Responda
  • • Encapsulation
  • • Abstraction
  • • Deduction
  • • E-learning

Questão 153

Questão
153. What is the use of a range of modern information and technologies by government to improve efficiency, service etc. i.e. Internet,mobile,local area network?
Responda
  • • E-Commerce
  • • E-Learning
  • • E-Governance
  • • E-Bussiness

Questão 154

Questão
154. What is referring to data in electronic form, which is logically associated with other data in electronic form and which is used by the signatory to sign?
Responda
  • • Cryptographic
  • • Electronic signature
  • • Telegraph signatures
  • • Faxed signatures

Questão 155

Questão
155. Components of a Multimedia System (match them with their examples):
Responda
  • Capture devices Video Camera, Video Recorder, Audio Microphone, Keyboards, mice, graphics tablets, 3D input devices, tactile sensors, VR devices. Digitising/Sampling Hardware
  • Storage Devices Hard disks, CD-ROMs, Jaz/Zip drives, DVD
  • Communication Networks Ethernet, Token Ring, FDDI, ATM, Intranets, Internets
  • Computer Systems Multimedia Desktop machines, Workstations, MPEG/VIDEO/DSP Hardware
  • Display Devices CD-quality speakers, HDTV,SVGA, Hi-Resolution monitors, Color printers

Questão 156

Questão
156. _____________provides us a means by which we can access the applications as utilities, over the Internet. It allows us to create, configure, and customize applications online.
Responda
  • • Cloud computing
  • • E-commerce
  • • E-learning
  • • Data centers

Questão 157

Questão
157. What is a term for all types of technology-enhanced learning (TEL), where technology is used to support the learning process?
Responda
  • • Cloud computing
  • • E-commerce
  • • E-learning
  • • Data centers

Questão 158

Questão
158. Match the types of E-Commerce
Responda
  • Business-to-Business(B-to-B) Is a website that is dedicated to exchange of information, goods and services to other business rather than final consumers.
  • Business-to-Customer(B-to-C) Is a website where all transactions take place between a business house and the final consumer
  • Consumers-to-businesses (C2B) Consumers make known a particular need for a product or service, and suppliers compete to provide the product or service to consumers.
  • Consumer-to-consumer Is a website where all the transactions take place between a consumer and the website acting asa platform that brings the buyer and the seller together

Questão 159

Questão
159. Match the Layers of software 1 2 3 4 5 6 7 8 9 10
Responda
  • User-Written Scripts
  • User Interface
  • Application
  • Run-time Library
  • Application Program Interface
  • Operating System
  • Kernel
  • Device Drivers
  • BIOS
  • Hardware

Questão 160

Questão
160. Match the definitions of the types of the interfaces
Responda
  • Command line interface the user types a command on the keyboard, the computer executes the command and provides textual output
  • Graphical user interface uses windows, icons, menus and pointers (WIMP) which can be manipulated by a mouse (and often to an extent by a keyboard as well).

Questão 161

Questão
161. What is a continuous representation, analogous to the actual information it represents?
Responda
  • • Analog data
  • • Data
  • • Information
  • • Knowledge

Questão 162

Questão
162. What is the technology that uses computing with high speed communication links to spread information from one place to another
Responda
  • • Information technology
  • • Data
  • • Knowledge
  • • Computing systems

Questão 163

Questão
163. _______are complex devices, dealing with a vast array of information categories
Responda
  • • Information
  • • Data
  • • Knowledge
  • • Computing systems

Questão 164

Questão
164. In cryptography, what is cipher? I. algorithm for performing encryption and decryption II. encrypted message
Responda
  • • Only I
  • • Only II
  • • Both I and II
  • • None

Questão 165

Questão
165. In asymmetric key cryptography, the private key is kept by
Responda
  • • Sender
  • • Receiver
  • • Sender and receiver
  • • All connected devices to the network

Questão 166

Questão
166. ____________is a set of computer instructions or data.
Responda
  • • Software
  • • Hardware
  • • Disk drive
  • • Memory

Questão 167

Questão
167. What provides connections among computers to enable computers to share data (e.g. documents), hardware (e.g. printers), and software resources (e.g. application programs)?
Responda
  • • Drivers
  • • CPU
  • • Network
  • • Memory

Questão 168

Questão
168. What is the IDE (Integrated Drive Electronics) cable
Responda
  • • Rolls data flow among component
  • • Transfers data from storage devices to the motherboard
  • • Stores data permanently
  • • Serves as a socket on the motherboard

Questão 169

Questão
169. What allow users to automate sequences of actions they perform frequently?
Responda
  • • Script
  • • Macros
  • • Script and macros
  • • None

Questão 170

Questão
170. What is the Trap?
Responda
  • • An event triggered by an external signal
  • • Keeps track of all the processes running
  • • Places the byte in a storage area
  • • A signal informing a program that an event has occurred

Questão 171

Questão
171. _________ is the rapid display of a sequence of images of 2-D or 3-D artwork or model positions in order to create an illusion of movement.
Responda
  • • Text
  • • Animation
  • • Video conferencing
  • • Picture

Questão 172

Questão
172. How we call the process, when each user has a single view of the available resources, independently of how they are arranged in terms of physical devices?
Responda
  • • Scalability
  • • Elasticity
  • • Virtualization
  • • Lower Infrastructure Costs

Questão 173

Questão
173. Indicate working models for cloud computing:
Responda
  • • Deployment models only
  • • Deployment and Service Models
  • • Service models only
  • • None

Questão 174

Questão
174. Which of the following cloud deployment models allows systems and services to be accessible within an organization?
Responda
  • • Public Cloud
  • • Community Cloud
  • • Private Cloud
  • • None

Questão 175

Questão
175. What are the Service Models?
Responda
  • • They are the reference models on which the Cloud Computing is based
  • • They allow systems and services to be accessible by group of organizations
  • • They allow systems and services to be easily accessible to the general public
  • • None

Questão 176

Questão
176. What provides access to fundamental resources such as physical machines, virtual machines, virtual storage?
Responda
  • • SaaS
  • • IaaS
  • • PaaS
  • • None

Questão 177

Questão
177. What provides the runtime environment for applications, development & deployment tools?
Responda
  • • SaaS
  • • IaaS
  • • PaaS
  • • None

Questão 178

Questão
178. Which model allows using software applications as a service to end users?
Responda
  • • SaaS
  • • IaaS
  • • PaaS
  • • None

Questão 179

Questão
179. What provides a uniform abstraction of the underlying physical machine?
Responda
  • • Abstraction
  • • Virtualization
  • • Hypervision
  • • None

Questão 180

Questão
180. What has the same form as a URL but may not identify an actual location on the Internet?
Responda
  • • URI
  • • URN
  • • URL
  • • DNS

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