Networking Chapters (20, 23, 24 & 25)

What is the maximum distance of a Class 3 Bluetooth device?

1 meter

SMTP uses TCP port _______________.

25

What is the screen size for a typical tablet?

7 to 12.9 inches

Batteries should be charged to at least how much when in storage?

70-80 percent

Mobile devices connect to the outside world through the cellular networks or through various _______________ Wi-Fi standards.

802.11

What is the successor to APM and specifies global and sleeping power states?

ACPI

Which standard or protocol represents a security improvement in WPA2 over WEP and WPA?

AES

What wireless technology is often used to connect headsets to smartphones?

Bluetooth

What is the name of Google's Linux-based computer?

Chromebook

What is the most accurate way to get a device's location?

GPS

What special type of "suspend" occurs when critical configuration information is written to the hard drive?

Hibernation

Which identifier represents the unique 15-digit number of a mobile device?

IMEI

Which term refers to a collection of configuration and security settings that an administrator has created?

Profile

What is a last resort you can do if your device is stolen?

Remote wipe

What is the first step in choosing an optimal location for an access point?

Site survey

What term describes restarting a mobile device, whether you do it from within the OS or with hardware buttons on the device?

Soft Reset

The _______________ feature enables smartphones to receive broadcasts from national emergency broadcast systems, such as the Emergency Alert System (EAS) in the United States.

emergency notification

Generally, mobile devices do not include a(n) _______________ because they do not have a lot of services listening on open ports.

firewall

POP3 uses TCP port _______________.

110

IMAP4 uses TCP port _______________.

143

What is the theoretical maximum range of the 802.11a wireless networking standard?

150 feet

What is the common ratio for laptops today?

16:9

What is the gain from a typical WAP?

2 dB

At what frequency range do the 802.11b- and 802.11g-based wireless technologies operate?

2.4 GHz

What frequencies does 802.11n use?

2.4 and 5 GHz

Most current laptops use what kind of DDR4 SO-DIMMs?

260-pin

What size audio port do laptops have?

3.5 mm

How many bits does WEP encryption use to scramble data packets?

40

Secure SMTP uses TCP port _______________.

465

What is the maximum capacity for data transfer between infrared devices?

4Mbps

At what frequency range does the 802.11a-based wireless technology operate?

5 GHz

What is the speed at which the 802.11g wireless technology transfers data?

54 Mbps

Generally, mobile devices have two types of radios: _______________.

802.11 and Bluetooth

Which wireless networking standard supports data throughput of up to 11 Mbps?

802.11b

Secure IMAP4 uses TCP port _______________.

993

What hidden menu might exist to help with device calibration?

Diagnostics menu

What is the standard straight-wire omnidirectional wireless antenna called?

Dipole

What is one major indicator of a weak cellular signal?

Dropped connections

Which standard or protocol provides a security improvement that WPA addresses over WEP?

EAP

What is a wireless service area that has been extended by adding more WAPs?

EBSS

Swiping and pinching are graphical user interface (GUI) _____________.

Gestures

What digital ports support a second monitor on many laptops?

HDMI, DisplayPort, and DVI

What type of screen technology does the Apple iPad use?

In-Plane Switching (IPS)

What is it called when you hold a system's power button for several seconds until it turns completely off?

Hard Reboot

A(n) ______________ number can be used to unlock a phone.

IMSI

Which identifier is a number that is tied to the user's account with the carrier and is included with a mobile device's SIM?

IMSI

What type of panels will be found on higher-grade portables?

IPS

Why is a hard reset the most disruptive reset option?

It removes all of a user's data and settings.

What type of screen does a portable device use?

LCD

Modern mobile devices use what type of battery?

Li-Ion

Which batteries cannot be used as replacement batteries in other systems?

Li-Ion

Which battery has a downside of exploding if overcharged or punctured?

Li-Ion

What do laptops often come with to indicate that the webcam is on?

Light

Users rely on _______________ to conveniently find things near them, such as stores and restaurants, or to determine when your Uber driver will show up.

Location Services

Most WAPs support filtering, in which data packets that do not contain the appropriate address are rejected. What kind of address is filtered?

MAC

What method enables you to limit access to your wireless network based on the physical, hard-wired address of the units' wireless NIC?

MAC address filtering

What 802.11n feature increases its range and speed?

MIMO

Where should you look for firmware updates on older WAPs?

Manufacturer's Web site

What is it called when the system and all the components except for the real-time clock are powered down?

Mechanical off mode

Which standard is used to configure digital signature settings for e-mail and contacts from the corporate address book, depending on how the corporate e-mail server is set up?

S/MIME

What technology is used in laptop video cards to reduce cost?

Shared memory

What type of authentication is a username and a password?

Single-factor authentication

Which standard has a security flaw that allows a hacker to guess an eight-digit code?

WPS

Swiping and pinching are graphical user interface (GUI) _____________.

gestures

The stereotypical e-reader uses a low-power _______________ screen technology called e-paper.

grayscale

Factory reset, or reset to factory default, is also known as a _______________.

hard reset

A _______________ is most often a device with a tablet form factor that is designed to integrate with a detachable keyboard.

hybrid laptop/tablet

Removing OS restrictions on an Apple device is known as _______________.

jailbreaking

A(n) _______________ supplies one of the most critical aspects of docking stations, but in a smaller, more portable format: support for connectors that thelaptop lacks

port replicator

A(n) _______________ supplies one of the most critical aspects of docking stations, but in a smaller, more portable format: support for connectors that thelaptop lacks.

port replicator

Removing OS restrictions on an Android device is known as _________________.

rooting

Most mobile devices allow the user to set a(n) _______________ by using a password, PIN, pattern, fingerprint, and/or facial recognition to block strangers from accessing the device.

screen lock

What is the name of Apples's virtual assistant?

siri

A hot, sluggish device might use _______________ to protect the device's CPU from heat damage?

thermal throttling

Setting up equipment to spoof a carrier's tower and infrastructure is known as _______________.

tower spoofing

In Android, where would you go to force stop an app?

Application manager

What method do wireless networks use to determine if other nodes are currently broadcasting?

CSMA/CA

What enables you to connect to the Internet through a network-aware smartphone, tablet, or other mobile device?

Cellular wireless network

What WAP settings should be adjusted in an environment with overlapping Wi-Fi signals?

Channel and frequency

What is the name of Microsoft's virtual assistant?

Cortana

A mobile device overheats for seemingly no reason. What is the most likely cause?

Defective battery

What term refers to a laptop that features a massive screen, a full size keyboard, an optical drive (or maybe two), and plenty of hard drive space?

Desktop Replacement

What wireless network mode can quickly be used to share files and printers without a WAP?

Ad hoc

What is a Microsoft protocol used to synchronize Microsoft Exchange e-mail, contacts, and calendars that has become widely used across a range of mobile OS platforms and hardware vendors, including Apple and Android devices?

Exchange ActiveSync (EAS)

What is the screen size for a typical smartphone?

Five inches

What special key on a laptop enables a user to switch features on and off, such as wireless networking, cellular networking, and Bluetooth?

Function (FN)

What is the process in which an organization tracks when its employees enter or exit a predefined area?

Geofencing

What does a multitouch touchpad allow a user to do?

Gesture

Where is the location for an omni-directional antenna in your home or office?

Near the center

What is another name for the Service Set Identifier parameter?

Network name

What key might be turned on if you're getting numbers when you're expecting to get letters?

Num Lock

What type of wireless network is very small and designed for "quick-and-dirty" jobs?

PAN

Ancient laptops might have what type of drive?

PATA

What process needs to be undertaken to enable Bluetooth devices to create a secure connection?

Pairing

Which feature allows you to plug a single Ethernet cable into the WAP to provide both power and a network connection?

PoE

The _______________ is a priority-ordered list of the other carrier networks and frequencies it should search for when it cannot locate its home carrier's network.

Preferred Roaming List (PRL)

Because mobile device hardware typically cannot be repaired or replaced by a user or field tech, mobile device troubleshooting focuses on what type of issues?

Software

What type of battery will often go unnoticed and the symptoms it creates may be hard to identify?

Swollen

What might be the result of too many failed login attempts?

System lockout

An SSL-based VPN uses the standard SSL port, _______________.

TCP 443

Which protocol does WPA use to provide a new encryption key for every sent packet?

TKIP

What was one of the earliest types of mobile devices?

The personal digital assistant (PDA)

What centrally connects wireless network nodes in the same way that a hub connects wired Ethernet PCs?

WAP

What WPA/WPA2 encryption version uses a RADIUS server for secure authentication?

WPA/WPA2-Enterprise

What might a dim display mean?

There is a problem with the display panel.

Which laptop-pointing device is most commonly used today?

Touchpad

What is a feature of the 2-in-1 laptop?

Touchscreen

Which device invented at IBM has a pencil eraser-sized joystick at the center of the keyboard?

TrackPoint

What type of screen technology do the less expensive portable devices and desktop monitors use?

Twisted nematic (TN)

What is gradually replacing portable-specific expansion slots?

USB

What type of laptop is thin, light, and powerful, and is as much about power and portability as it is about looks?

Ultrabook

When a mobile app is shut down, what might the user lose?

Unsaved data

What should you open up t troubleshoot a suspected hardware problem?

Windows device manager

What should you check first when troubleshooting wireless connectivity issues?

Wireless NIC link light

Besides the display, what is a very large battery drain for a mobile device?

Wireless communication

One of the most common fitness tracker features is counting your steps using _______________.

an accelerometer

PGP and S/MIME are examples of _______________.

encryption standards