Career Explorations 2 unit 1 lessons 1-3

1.System unit 2.StorageBluetooth headset 3.Peripheal devices

1. (1) RAM 2.(3) Bluetooth headset 3. (2) hard disk drive

1. a part of a larger whole (the CPU and hard drive, for instance, can be referred to as computer components; so can much smaller items including integrated circuits, switches, and extremely small transistors) 2. a device that uses a disk to permanently store all computer data within files and folders; these drives spin very fast (up to 7,200 RPM) with data accessible from any place on the drive 3. information processed or stored by a computer; examples include text documents, images, audio clips, and software applications; all kinds of data are stored in files and folders on a computer's hard, DVD, or CD drives 4. a wireless technology standard for exchanging data over short distances

1. (4) Bluetooth 2. (1) component 3. (2) hard disk drive 4. (3) data

1.the amount of space or resources something takes 2.two or more computers connected to each other so that information can be shared 3.a measure of data storage that is 1,000 gigabytes in size 4.information processed or stored by a computer, such as text documents, images, audio clips, and software applications; data are stored in files and folders on a computer's hard, DVD, or CD drives

1. (4) data 2. (1) footprint 3. (3) terabytes 4. (2) network

1.A measure of the processing power of a computer 2.Describes a process that grows more rapidly the greater it becomes 3.The idea that processing power of computers doubles every eighteen to twenty-four months

1.(3) Moore's law 2.(2) exponentially 3.(1) billions of instructions per second

What is Hadoop? A new type of computer. A software framework for supporting distributed data processing and storage. A new network device. A programming language.

A software framework for supporting distributed data processing and storage.

The number of individual networking addresses required for the Internet is currently _____. more than 19 billion one per country more than 4.3 billion unknowable

more than 4.3 billion

It's expected that, by 2016, there will be almost _____ global network connections. twelve billion nineteen billion three trillion none of the above

nineteen billion

One exabyte = 1,000 _____. petabytes megabytes gigabytes nano bytes

petabytes

Which of the following skill sets is important for the next generation of hard drive engineers to have? Chemistry and physics Motion control Software development All of the above.

All of the above.

Which of the following is a good reason for backing up your data to the cloud? If your computer is stolen, you still have access to most of your current data. In the event of a disaster at the cloud data center you use, you still have access to most of the current data. If the cloud storage provider you use goes bankrupt, you will still have access to most of the current data. Backing up is generally a good idea.

If your computer is stolen, you still have access to most of your current data.

The two types of area networks mentioned in the text are _____. wide and narrow public and private local and remote wide and local

wide and local

Which of the following sets of acronyms is concerned with encoding data for secure transmission? IPsec, SSH NAT, SSL VPN, NIC WAN, LAN

Ipec,SSH

A device that makes it possible for multiple customers to share one address is called a/n _____. DSL WLAN NAT URL

NAT

In order to justify the cost of cloud storage, a computer analyst may be asked to create a/n _____. ROI statement SSD statement open source statement Java statement

ROI statement

The IT department has rejected the password you submitted for approval to join the network. Your suggestion was "bobbie." Why did IT reject your choice? It will be confusing because it could be written down as "Bobby" by mistake. The word does not meet your company's policy for choice of passwords. Someone else is already using "bobbie." Because everyone knows you have a dog called Bobbie, so the password is too predictable.

The word does not meet your company's policy for choice of passwords.

Employers in the information technology field tend to prefer candidates who have earned relevant certifications. True False

True

In the context of security in networking, the letters AAA in the term "AAA servers" stand for _____. access, applications, and accounting allowing access automatically accessing all appliances authentication, authorization, and accounting

authentication, authorization, and accounting

The smallest unit of storage in the following list is a _____. megabyte byte nano byte gigabyte

byte

Software that prevents unauthorized users from accessing a private network is called a _____. virus checker sentry gateway firewall

firewall

According to Metcalfe's law, if a second computer is joined to a first, the value of the network created is how many times greater than the value of the original computer? eight times four times one time two times

four times

Since the days when storage devices were first made available to the public, they have now become _____. more expensive and have greater capacity physically larger and faster more affordable and have smaller capacity physically smaller with greater storage capacity

physically smaller with greater storage capacity

The component that allows you to make a paper-based copy of a body of text is the _____. printer scanner monitor modem

printer

To create a digital file from an old photo, I would use a _____. scanner modem monitor printer

scanner

Which of the following situations would not require knowledge of networking? stand-alone home computer a typical classroom of computers computers used by Social Security administrators all the computers of a banking system

stand alone home computer

Which of the following peripheral devices can be used for both input and output? mouse touch screen on a tablet computer printer CPU

touch screen on a tablet computer

The terms flash drive, thumb drive, and memory stick all refer to the same type of device. True False

true