Worksheetsqwerty
Total questions: 143
Worksheet time: 1hrs 24mins
What is the number one concern about cloud computing?
Too expensive
Security concerns
Too many platforms
Accessibility
Google Docs is a type of cloud computing
True
False
Which one of these is not a cloud computing pricing model
Pay Per Use
Subscription
Ladder
Perpetual License
Which of these is not a major type of cloud computing usage
Hardware as a service
Platform as a service
Software as a service
Infrastructure as a service
An Internet connection is necessary for cloud computing interaction
True
False
"Cloud" in cloud computing represents what
Wireless
Hard drives
People
Internet
Which of these should a company consider before implementing cloud computing technology. I: Employee satisfaction, II: Potential cost reduction, III: Information sensitivity
Only I
Only II
Only III
I, II, and III
What exactly is cloud computing
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
What widely used service is built on cloud-computing technology? I: Twitter, II: Skype, III: Gmail, IV: YouTube.
Only I
Only II
Only III and I
I, II, III and IV
Cloud computing embraces many concepts that were previously touted as the next big thing in information technology. Which of these is not an antecedent of the cloud?
Utility computing
Remote hosted services
Grid computing
Desktop computing
What does SQL stand for
Structured Query Language
Strong Question Language
Structured Question Language
Structured Querty Language
Which SQL statement is used to extract data from a database?
Select
GET
OPEN
Extract
Computerized representations of models and attributes of real or simulated entities are?
Data
Knowledge
Information
Database
Representation of the results of a computational process, such as statistical analysis, or the transcripts of some meanings assigned by human beings is
Data
Knowledge
Information
Database
Representation of the results of a computer-simulated cognitive process, such as perception, learning, association, and reasoning is
Data
Knowledge
Information
Database
Continuous representation, similar to the actual information it represents is
Analog data
Digital data
Continuous data
Discrete data
A discrete representation, breaking the information up into separate(discrete) elements is
Analog data
Digital data
Continuous data
Discrete data
Two bits can represent
Four things
Two things
Eight things
Ten things
The extended version of the ASCII character set is not enough for international use
Unicode
Barcode
EBCDIC
Binary code
The Unicode character set uses _________ per character
16 bits
8 bits
4 bits
32 bits
The first 256 characters in the Unicode character set correspond exactly to the extended ASCII character set
True
False
List the levels of computer systems from top to down
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
List the levels of computer systems from bottom to up
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
Which software refers to application software?
Microsoft Word
Microsoft Windows
Unix
Mac OS
Which software refers to application software?
Internet Explorer
Microsoft Windows
Unix
Mac OS
Which software refers to application software?
Macromedia Dreamweaver
Microsoft Windows
Unix
Mac OS
Which software refers to application software?
Adobe Acrobat Reader
Microsoft Windows
Unix
Mac OS
Which software refers to system software?
Macromedia Dreamweaver
Microsoft word
Internet Explorer
Microsoft Windows
Which software refers to system software?
Macromedia Dreamweaver
Microsoft word
Internet Explorer
Unix
Which software refers to system software?
Macromedia Dreamweaver
Microsoft word
Internet Explorer
Mac OS
What is the master controller for all activities that take place within a computer
Operating System
Application Software
DBMS
Word processor
What does send data from a computer over a network, and collects incoming data sent by other computers
A network interface card (NIC)
A modem
Phone line or cable
Internet service provider
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?
A network interface card (NIC)
A modem
Phone line or cable
Internet service provider
What was the first computer prototype used vacuum tubes?
ENIAC
Analytical Engine
Abacus
Hollerith Tabulating Machine
What is the main component that executes instructions stored in the main memory?
Microprocessor
Main memory
Storage device
Peripheral
What does store instructions to be executed by the microprocessor?
Microprocessor
Main memory
Storage device
Peripheral
What do store data permanently even when the computer is turned off?
Microprocessor
Main memory
Storage device
Peripheral
What enable data input and output?
Microprocessor
Main memory
Storage device
Peripheral
What acts as the traffic cop controlling the flow of data and coordinating interactions among components in the system?
Microprocessor
Main memory
Storage device
Chipset
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?
Motherboard
Power supply
Microprocessor
Chipset
What does provide electrical power to the computer system?
Motherboard
Power supply
Microprocessor
Chipset
What does process instructions stored in main memory?
Motherboard
Power supply
Microprocessor
Chipset
What does serve as a socket on the motherboard into which an expansion card maybe inserted?
Expansion slot
Motherboard
Power supply
Microprocessor
What does enable a computer to control peripheral devices such as the monitor and the microphone?
Expansion card
Motherboard
Power supply
Microprocessor
What does control data flow among components?
Chipset
Motherboard
Power supply
Microprocessor
What does transfer data from storage devices to the motherboard?
IDE (Integrated Drive Electronics) cable
Motherboard
Power supply
Microprocessor
What does store data permanently (even after the computer is turned off)?
Disk drives
Motherboard
Power supply
Microprocessor
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?
Interpret
Fetch
Execute
Store
What science studies how to refine the design of products to optimize them for human use?
Ergonomics
HCI
Economics
ICT
What DOS command is used to change the working directory?
Cd
md
rd
ren
What DOS command is used to make a new directory?
cd
md
rd
ren
What DOS command is used to remove an existing empty directory?
cd
md
rd
ren
What DOS command is used to rename a file within a directory?
cd
md
rd
ren
The BIOS initiates the POST (Power-On Self Test) sequence
True
False
The BIOS enables the video card
True
False
ISPs can be accessed by which of the following ways? I. Telephone lines II. Cable television systems III. Personal satellite dishes
I only
I and II only
I, II, and III
II only
The numbers in IP addresses are separated by
points
periods
colons
commas
What knits the Internet together and allows data to travel smoothly over the communications links provided by NSPs worldwide?
FTP
TCP/IP
HTTP
URL
What networks are useful in environments where wiring is difficult to install?
Twisted pair
Coaxial
Wirefree
Wireless
What top-level domain belongs to computers in the category of commercial businesses?
bus
com
org
bsn
An IP address is a set of four numbers between 0 and
128
24
16
255
What top-level domain belongs to computers in the category of networks and ISPs?
adm
int
net
html
What top-level domain belongs to computers in the category of professional and nonprofit organizations?
com
npo
org
edu
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.
I and III only
I, II, and III
III only
I only
When you send an email to someone, it is sent to
the sender's email server
the sender's email client
the recipient's computer
the recipient's email server
Using a(n) _____ protocol, the sender and the receiver are synchronized by a signal called a clock
synchronous
asynchronous
analog
block
The bandwidth of a(n) _____ signal is usually measured in bits per second.
video
digital
satellite
analog
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?
BNC
STP
UTP
Coaxial
A communications _____ is a physical path or frequency for a signal transmission.
band
channel
protocol
bridge
Which of the following terms represents the transmission capacity of a communications channel?
Indexing
Frequency
Bandwidth
Resolution
Which of the following are commonly used network topologies? I.Star II. Ring III.Modems
I and II only
III only
II and III only
I and III only
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
II and III only
I and II only
I, II, and III
I and III only
Modems transfer data between computers by converting between
analog and digital
Ethernet and digital
video and sound
analog and Ethernet
Which of the following are potential communications links? I. Telephone wiring II. Fiber-optic cable III. Satellite
I and II only
II only
I, II, and III
III only
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?
Infrared
Radio
UTP
Line-of-sight
Which of the following are protocols associated with Internet email? I.SMTP II.POP III. FTP
I and III only
I and II only
I, II, and III
II and III only
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
II and III only
I, II, and III
I and II only
I and III only
What is a backbone provider (also known as a Network Service Provider)?
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
With respect to the Internet, routers are used to connect
a computer and a modem
a computer to the Internet
any two computers
different networks of computers
With respect to the Internet, companies need to register a unique domain name when
buying a new modem
establishing an electronic commerce Web site
buying a new computer
connecting a new computer to the Internet
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
I, II, and III
I and III only
II and III only
I and II only
What is the protocol used to transfer Web pages?
html
http
udp
ftp
What is the name of the Internet protocol used to make sure messages are reliably transmitted and received by the destination computer?
TCP
ISP
IP
POP
The World Wide Web is
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
When a fully explicit URL such as http://www.iitu.kz is provided to an Internet browser, "http" refers to the name of the
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
IP host addresses on the Internet are composed of which of the following?
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
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
I, II, and III
II and III only
I and II only
II only
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.
I and II only
II and III only
I, II, and III
I and III only
Which of the following computer attacks is spoofing?
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
The method of cracking a password by trying all possible alphanumeric combinations is known as a _____ attack
port scanning
dictionary
brute force
man-in-the-middle
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?
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.
Which of the following is email spoofing?
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
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
II and III only
I and III only
I and II only
I, II, and III
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.
II and III only
I only
I and III only
I, II, and III
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.
I only
II only
None
I and II
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.
I and II
None
I only
II only
What is 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
II and III only
I, and III
I, II, and III
I and II only
Encryption is used to
save storage space
store data files in a vault
protect privacy by encoding data
archive system files
Of the following processes, which best characterizes the authentication process?
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
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.
I only
None
II only
I and II
The security of data can be violated through which of the following? I. Malicious acts II. User errors III. Disasters
II and III only
I, II, and III
I only
I and III only
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.
None
I and II
II only
I only
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.
II and III only
I and II only
I, II, and III
None
Examples of network monitoring tools include which of the following? I. Packet sniffers II. Antivirus software III. Security patches
I only
I and III only
II only
I, II, and III
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.
II only
I and II only
I, II, and III
I and III only
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
III only
I, II, and III
I and III only
II and III only
Which of the following statements is (are) true about smart cards? I. They are vulnerable to Internet attacks. II. They can encrypt data.
II only
None
I and II
I only
Which of the following is correct with respect to customers providing highly personal information across the Internet through electronic commerce transactions?
Customers should never provide charge card information when asked to complete an electronic commerce transaction.
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.
Which of the following comparisons between public-key encryption schemes and private-key encryption schemes is true?
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.
Which of the following is true about private-key encryption schemes?
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.
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.
None
I and II
II only
I only
Anti-virus software with updated virus definitions typically protects against which of the following? I. Worms II. Trojan horse programs
I only
None
I and II
II only
ANSI stands for
All National Standard of Information
American National System Information
American National Standards Institute
All National Standards Institute
_________ receives input from the user and processes this input through the computer to produce output.
Hardware
Software
Computer system
Network system
________________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.
Latency
RAM
Capacity
DRAM
Who designed a general-purpose calculating device, the Analytical Engine?
Augusta Ada King
Gordon Moore
Jack Kilby
Charles Babbage
PCI stands for
Peripheral Component Interconnect
Peripheral Computer Internet
Peripheral Component Interaction
Peripheral Computer Interaction
Convert the binary number 01011 to decimal
11
110
1011
10
Convert the decimal number 63 to binary
111111
110111
0110111
11011111
Convert the hexadecimal text D9 to binary
1101 1001
1010 0111
1110 0100
1110 1101
Convert this binary number 010101 to decimal
21
20
25
22
Convert this hexadecimal number 8F to decimal
143
142
141
140
Convert this decimal number 125 to binary
1111101
1101011
1111011
1101001
Convert this hexadecimal number A3 to binary
1010 0011
0110 1111
0110 1100
0111 1111
Convert this decimal number 117 to hexadecimal
75
0111 1111
85
0110 1111
Convert this binary number 10001001 to hexadecimal
89h
99a
0111 0111
89
Match the different types of buses
This means that each layer needs only a limited amount of knowledge to do its job
Encapsulation
Abstraction
Deduction
E-learning
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?
E-Commerce
E-Learning
E-Governance
E-Bussiness
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?
Cryptographic key
Electronic signature
Telegraph signatures
Faxed signatures
Components of a Multimedia System (match them with their examples):
_____________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.
Cloud computing
E-commerce
E-learning
Data centers
What is a term for all types of technology-enhanced learning (TEL), where technology is used to support the learning process?
Cloud computing
E-commerce
E-learning
Data centers
Match the types of E-Commerce
Match the Layers of software
Match the definitions of the types of the interfaces
What is a continuous representation, analogous to the actual information it represents?
Analog data
Data
Information
Knowledge
What is the technology that uses computing with high speed communication links to spread information from one place to another?
Information technology
Data
Knowledge
Computing systems
_______are complex devices, dealing with a vast array of information categories
Information technology
Data
Knowledge
Computing systems
In cryptography, what is cipher? I. algorithm for performing encryption and decryption II. encrypted message
Only I
Only II
Both I and II
None
In asymmetric key cryptography, the private key is kept by
Sender
Receiver
Sender and receiver
All connected devices to the network
____________is a set of computer instructions or data.
Software
Hardware
Disk drive
Memory
