Exam (elaborations)
CNE Final Exam Prep Questions And Answers
- Course
- Institution
CNE Final Exam Prep Questions And Answers ...
[Show more]
Content preview
CNE Final Exam Prep Questions And Answers 2024-2025What is FDM and TDM - ANSWER Divides information based on frequency, divides
information based on time
Guided vs Unguided Media - ANSWER Guided: data transfer through physical media,
wired, connected physically
Unguided: transmission through air, space, etc.
Four Sources of Packet Delay - ANSWER Processing, Queuing, Transmission,
Propagation
3 asterisks in traceroute - ANSWER no response was received from the hop within the
timeout period.
layers of internet protocol stack - ANSWER Application
Transport
Network
Link
Physical
Application- ANSWER Provides network services
HTTP(S), QUIK, DHCP, SNMP
Transport- ANSWER provides transfer of data between hosts
UDP, TCP
, Network- ANSWER Forwarding and Routing
Link- ANSWER Organize data into frames, detects/corrects errors in Physical layer
Ethernet, WIFI, MAC (Media Access Control), PPP(Point to point protocol)
Physical- ANSWER transmits and receives between physical medium
Cables, fiber optics
elastic throughput - ANSWER dynamically adjusting network bandwidth to optimize
performance and accommodate varying traffic demands efficiently.
What is TLS? How does it work? - ANSWER Transport Layer Security, objective is to
reduce data loss, system of checks when connecting to make sure it is reliable, also
encryption for HTTPS
Persistent vs non-persistent HTTPS - ANSWER Persistent: keeps connection open,
Non-persistent: closes the connection with the host once the information has been
delivered
DNS Hierarchy - ANSWER Root: Keeps record of where TLDs are located, and redirects
Top Level Domains: Keeps records of domain name registrations under the .com .org,
etc.
Authoritative Servers: Where the actual domains (websites and IPs) are stored
Iterated vs recursive DNS query - ANSWER Recursive: DNS goes through servers
independently
Iterated: client asks multiple DNSs until one has what it needs
MX record - ANSWER Mail Exchange record specifies the main server responsible for
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 Easton. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $11.99. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
79223 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy study notes for 14 years now