Exam (elaborations)
COMPTIA NETWORK+ CERTIFICATION (EXAM N10-007) 2024/2025
- Course
- Institution
COMPTIA NETWORK+ CERTIFICATION (EXAM N10-007) 2024/2025
[Show more]
Content preview
COMPTIA NETWORK+ CERTIFICATION(EXAM N10-007) 2024/2025
,COMPTIA NETWORK+ CERTIFICATION
(EXAM N10-007) 2024/2025
What does OSI stand for? - Precise Answer ✔✔Open Systems
Interconnection, which is a seven-layer network model
What does TCP/IP stand for? - Precise Answer ✔✔Transmission
Control Protocol/Internet Protocol
Name the 7 layers of the OSI model in order (# & name) - Precise
Answer ✔✔Layer 7 Application, Layer 6 Presentation, Layer 5 Session,
Layer 4 Transport, Layer 3 Network, Layer 2 Data Link, Layer 1
Physical
Bottom-up mnemonic: "Please Do Not Throw Sausage Pizza Away."
Top-down mnemonic: "All People Seem To Need Data Processing."
What is UTP? - Precise Answer ✔✔Unshielded Twisted Pair cable.
Usually contains four pairs of wires that can transmit and receive data
Define the Physical Layer of OSI - Precise Answer ✔✔Layer 1 of the
OSI model defines the method of moving data between computers, so
the cabling and central box are part of the Physical layer (Layer 1).
Anything that moves data from one system to another, such as copper
cabling, fiber optics, even radio waves, is part of the OSI Physical layer.
Layer 1 doesn't care what data goes through; it just moves the data from
, one system to another system. NOTE: The NIC is NOT considered part
of the Physical Layer, but usually is part of Layer 2 (Data Link).
What is a MAC address? - Precise Answer ✔✔Inside every NIC, burned
onto some type of ROM chip, is special firmware containing a unique
identifier with a 48-bit value called the media access control address, or
MAC address.
No two NICs ever share the same MAC address—ever. Any company
that makes NICs must contact the Institute of Electrical and Electronics
Engineers (IEEE) and request a block of MAC addresses, which the
company then burns into the ROMs on its NICs. Many NIC makers also
print the MAC address on the surface of each NIC.
Represented in hex, each hex being 4 bits, hence, 12 hex chars make up
the 48-bit MAC address value.
E.g. 00-40-05-60-7D-49
The first six digits, in this example 00-40-05, represent the number of
the NIC manufacturer. Once the IEEE issues those six hex digits to a
manufacturer—referred to as the Organizationally Unique Identifier
(OUI)—no other manufacturer may use them. The last six digits, in this
example 60-7D-49, are the manufacturer's unique serial number for that
NIC; this portion of the MAC is often referred to as the device ID.
What are 2 other ways to refer to the MAC address? - Precise Answer
✔✔Most techs just call them MAC addresses, as you should, but you
might see MAC-48 or EUI-48 on the CompTIA Network+ exam.
The Institute of Electrical and Electronics Engineers (IEEE) forms MAC
addresses from a numbering name space originally called MAC-48,
which simply means that the MAC address will be 48 bits, with the first
24 bits defining the OUI, just as described here. The current term for this
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 YANCHY. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $16.49. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
77254 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy study notes for 14 years now