LAN (Local Area Network) - ANSWERSCovers a small, clear defined area
Might contain a single floor or work area or single building
When LANS use wireless circuits, they are called Wireless local area networks (WLAN)
Backbone Network (BNs) - ANSWERSHigh speed networks connection other networ...
LAN (Local Area Network) - ANSWERSCovers a small, clear defined area
Might contain a single floor or work area or single building
When LANS use wireless circuits, they are called Wireless local area networks (WLAN)
Backbone Network (BNs) - ANSWERSHigh speed networks connection other networks
together
May span hundreds of feet to several miles
WAN (Wide Area Networks) - ANSWERSLargest geographic scope
often composed of leased circuits
May span hundreds or thousands of miles
What are the three-teir architecture in Application Activities? - ANSWERS1.
Presentation Layer
2. Application Layer
3. Data layer
What is the Presentation Layer? - ANSWERSRepresents the user interface
What is the Application Layer? - ANSWERSimplements the application logic
What is the Data Layer? - ANSWERSIs comprised of persistent Data stores.
What is a Point-to-Point Circuit? - ANSWERSInclude most wired connections today.
(Server <- Circuit -> Client computer)
Only between two devices (sender and reciever)
ETHERNET
What are Multipoint circuits? - ANSWERSAre most commonly used in wireless today
(link is between a sender and multiple receivers)
WIRELESS
What are the two types of media access control? - ANSWERSContention Access
, Controlled Access
What is Contention Access? - ANSWERSDevices must be "Polite" and follow these
steps.
Listen for traffic
If another device is transmitting, wait
If not transmit and keep listening
If another device begins to transmit, stop and wait
What is Controlled Access? - ANSWERSEach device must get "permission" to transmit,
similar to raising a hand
What makes up the CIA TRIAD? - ANSWERSConfidentiality (POINT)
Integrity (bottom left)
Availability (bottom right)
What is Confidentiality (Point) in the CIA Triad? - ANSWERSProtection of organizational
Data from unauthorized disclosure
What is Integrity (Bottom Left) in the CIA Triad? - ANSWERSAssurance that data has
not been altered or destroyed
What is Availability (Bottom Right) in the CIA Triad? - ANSWERSThe degree to which
information and systems are accessible to authorized users
What are Network Controls? - ANSWERSThey are safeguards that reduce or eliminate
threats to network security
What are types of Network Controls? - ANSWERSPreventative Controls
Detective Controls
Corrective Controls
What are Preventative Controls? - ANSWERSThey mitigate or stop a person from
acting or an event from occurring
act as a deterrent by discouraging or restraining
What are Detective Controls? - ANSWERSReveal or discover unwanted events
Document events for potential evidence
What are Corrective Controls? - ANSWERSRemedy an unwanted event or intrusion
What is a Threat? - ANSWERSIs a potential security violation that can challenge
defenses in an attempt to breach privacy and/or cause harm
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller Bestgrades2. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $10.99. You're not tied to anything after your purchase.
