IT-104 Midterm Practice

The central processing unit (CPU) and the primary storage of a computer are located on the in the _____.
motherboard
What is the electronic component that interprets and carries out the basic instructions that operate the computer?
motherboard
What is the purpose of memory management?
to optimize the use of RAM
Your new home has a vacuum system. What kind of computer is controlling it?
embedded computer
Which of the following is a utility that removes a program, as well as any associated entries in the system files?
uninstaller
Which of the following kinds of file utilities shrink the size of a file(s)?
file compression
What does a disk cleanup utility do?
searches for and removes unnecessary files
Why is a fragmented disk slower than one that is defragmented?
A fragmented disk has many files stored in noncontiguous sectors.
You have heard that it is possible to improve your computer’s performance by storing all related files for a particular program together. What is the term for this?
defragmenting
Which of the following is a register function?
storing the location from where an instruction was fetched
Which of the following is an application that incorporates data from multiple providers into a new application?
mashup
Which of the following is the most common type of volatile memory?
RAM
Which of the following statements is true of light-emitting diode (LED)?
It enables improved contrast than a liquid crystal display (LCD).
After a computer system is started, portions of the operating system are transferred to _____ as they are needed.
memory
An operating system with _____ capabilities allows a user to run more than one program concurrently.
multitasking
_____ is an open-source operating system whose source code is freely available to everyone.
Linux
Which of the following statements is true of embedded operating systems?
They are dedicated to the control of another device.
_____ is a personal application software that includes a wide range of built-in functions for statistical, financial, logical, database, graphics, and date and time calculations.
Spreadsheet
In a _____, all network devices are connected to a common linear backbone that serves as a shared communications medium.
bus network
operates like Wi-Fi, only over greater distances and at faster transmission speeds.
WiMAX
A _____ is one in which all network devices are connected to one another through a single central device.
star network
With _____, processing devices are placed at various remote locations, and each device is isolated and does not communicate with any other processing device.
decentralized processing
A _____ is a telecommunications hardware device that converts communications signals so they can be transmitted over the communication media.
modem
What is the purpose of an Internet Protocol address
It uniquely identifies the location of each computer or device connected to the Internet.
A DNS server is able to identify which of the following?
an IP address based on a domain name
What is the difference between a wiki and a blog?
Users can modify posts in a wiki but they cannot modify posts made by a blogger.
What is multimedia?
the combination of text, graphics, animation, audio, video, and/or virtual reality
If someone displays a webpage in a browser and the page indicates Flash Player is needed, what is Flash Player?
a plug-in
One way to help protect the security of communications over both wired and wireless networks is to _____.
encrypt the data
True or False.
Linux is an open-source operating system.
TRUE
True or False.
An embedded system is a computer system that is implanted in and dedicated to the control of another device.
TRUE
True or False.
A wide area network (WAN) is a telecommunications network that connects users and their computers in a geographical area that spans a campus or city.
FALSE
True or False.
With centralized processing, multiple computer platforms are dedicated to special functions, such as database management, printing, communications, and program execution.
FALSE
True or False.
With distributed processing, processing devices are placed at remote locations but are connected to each other via a network.
TRUE
True or False.
A client is any computer on a network that sends messages requesting services from the servers on the network.
TRUE
True or False.
A digital subscriber line (DSL) delivers high-speed Internet access to homes and small businesses over the existing phone lines of the local telephone network
TRUE
True or False.
Each computer on the Internet has an assigned address, called its Internet Protocol (IP) address, that identifies it on the Internet
TRUE
True or False.
The Internet is the infrastructure on which the Web exists.
TRUE
True or False.
The Internet is the infrastructure on which the Web exists.
FALSE
Clock speed of the central processing unit (CPU) is often measured in billions of cycles per second also known as _____.
GHz
is a wireless communications specification that describes how cell phones, computers, and printers can be connected over distances of 10 to 30 feet at a rate of about 2 Mbps and allows users of multifunctional devices to synchronize information.
BLUETOOTH
A(n) _____ is a network device that serves as an entrance to another network using a different protocol.
GATEWAY
The _____ is the primary method for interacting with the Internet.
HTTP
A(n) _____ is a website that people can create and use to write about their observations, experiences, and opinions on a wide range of topics.
BLOG
Provide two examples of websites that use the HTTPS protocol and the types of information transmitted.
(ESSAY)
Websites where you purchase something or where you input personal information. The information that is transmitted in HTTPS is encrypted
_____ transmission involves the broadcast of communications in one of three frequency ranges: microwave, radio, and infrared.
WIRELESS
What is a computer program?
(ESSAY)
Set of instructions that tell the computer what to do.
True or False.
Compared to main memory, secondary storage has the advantages of volatility, lowered capacity, and higher costs.
FALSE
Which type of software has no restrictions from the copyright holder regarding modifications of the software’s internal instructions and its redistribution?
Open source software
You love to take pictures of your family. What standard do you use to print pictures directly from your camera?
UWB