final exam CET 2
You configured an 802.11g network with three overlapping WAPs. What channels should they be set to?
1, 6, 11
Which of the following wireless IEEE standards operates exclusively in the 2.4GHz radio frequency?
802.11b
What should you use with a laptop to avoid frequent insertion and removal of external input and video devices?
Docking station
You have been asked to configure a network for a small office. The wireless router is installed, and now you need to connect the client computers. What do you enter on the client computers to connect to the router?
The security passphrase
HDMI standard can transmit video & audio signals.
True
Which LCD component is responsible for providing brightness?
backlight
Fiber-to-the-Home (FTTH) is a type of Fiber-Optic internet service where the cables are 100-percent fiber from their data centers to your home.
true
In computing, tethering means hooking your laptop up to your cell phone and using the cell phone's connection and data plan to get on the Internet.
true
Opening the case of a laptop under warranty most likely will void the warranty.
true
You are sitting in a coffee shop and using the public wireless network. You suddenly notice suspicious activity on your laptop. Which laptop feature should you use?
wifi-toggle
Convert decimal number 169 to binary.
10101001
Convert binary number 110100 to decimal.
52
Which of the following 802.11x standards provides data transmission speeds up to 54Mbps in the 2.4GHz range?
802.11g
What is the primary function of the SSID?
A parameter used to identify a network and configure a wireless connection
What should you do first to remove external devices from your laptop?
Click the Safely Remove Hardware icon.
One of the users on your network needs to travel, and she wants to work on the airplane. Which laptop accessory will allow her to power her laptop from the airplane?
DC adapter
You are setting up a small office network for a client. Which Internet service would you recommend to provide the best speed?
DSL
Which custom configuration is most likely to include a RAID array?
Home server PC
Which of the following is NOT a benefit of laptop design?
Increased performance
Which of the following is a primary difference between laptops and desktops?
Laptop components need to produce less heat.
Which level of cache was originally defined as being built into the processor die?
Level 1
A _______ covers a large campus or city
MAN
What service translates private IP addresses on your internal network to public IP addresses on the Internet?
NAT
Which of the following reasons best explains the rationale behind custom configurations for computer systems?
Some computers require specialized components.
Which of the following is true about thin clients?
Thin clients require fewer components than standard clients.
One of the differences between the UTP and STP cabling is that the STP cable takes advantage of additional protective cover reducing signal interference from outside sources.
True
Which router feature, when enabled, helps computers on the local network automatically discover and communicate with services provided by other computers on the local network?
Universal Plug and Play (UPnP)
What is the least secure wireless encryption standard for 802.11 networks?
WEP
What is the most secure wireless encryption standard for 802.11 networks?
WPA2
Which wireless encryption standard uses AES?
WPA2
A workstation is also known as dedicated server.
false
Because they are smaller and easier to produce, laptop replacement parts cost less than replacement parts for desktop computers.
false
Both VGA and Component Video technologies support digital video signals.
false
Which of the following are components of an LCD? (Choose two)
inverter screen
know the pictures and names
know the pictures and names
