URE 2 Flashcards
The computing part of the computer is the central processing unit also called the
Microprocessor
What two main components make up the central processing unit?
Control unit & arithmetic logic unit
What is the type of memory that retains data after power is removed or lost?
Nonvolatile
Which landline transmission medium is the primary carrier of voice communications?
Twisted pair cable
An optical communications system is comprised of a
Transmitter, cable, and receiver
Name 3 advantages to using wireless technology
- Mobility
- Ease of installation
- Lower cost
The ability to move about w/o being tethered by wires in wireless technology is called
Mobility
Name the 4 security threats to WLAN
- War drivers
- Hackers
- Employees
- Rogue access points
Who is an authorized client that may unknowingly or maliciously help outside parties gain access to a network?
Employee
What organization developed several wireless standards to meet the demands of security, speed, & flexibility of today’s wireless networks?
IEEE
How many peripherals can a USB handle at once?
127
How many devices can connect to a FireWire bus?
63
What do you apply across LCD material to change the alignment & light polarizing property?
Voltage
What is a Data Link layer network device that logically separates a single network into 2 segments or collision domains in Ethernet networks?
Bridge
What rule established the percent of data that should be local to a segment & the percentage of data that should be destined to traverse a bridge to the other segment?
80/20 rule
This type of bridge is used to convert one Data Link layer protocol to another
Translational
What is the method called when the entire frame is received & placed into the buffer, an error check is performed, & the frame is sent to the proper port for delivery?
Store-and-forward
What forwarding method is also known as runtless switching?
Fragment-free
*What layer of the open system interconnection (OSI) model do routers operate?
Layer 3 (Network)
What do routing algorithms initialize & maintain to aid the process of path determination?
Routing tables
Which of these is an example of an Exterior Gateway Protocol?
Border Gateway Protocol (BGP)
*Dynamic routing automatically calculates the best path between how many nodes?
2
What encryption device may you rarely see due to its lower maximum data rate?
TSEC/KIV-7
What encryption device is certified to secure all classification levels & categories & is able to encrypt trunk-level high-speed circuits?
TSEC/KIV-19
